Die Schwalbe

166 problem(s) found in 3503 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT A='Kotesovec, Vaclav' AND K='Reiner Rundlauf'] [download as LaTeX]

1 - P0005207
Luigi Ceriani
The Fairy Chess Review 08/1949
P0005207
(10+11)
Orthorekonstruktion N=23
BTM: 1. ... Kb2 2. La7 Ka3 3. Lb6 Ka4 4. Lc7 Kb5 5. Lb6 Ka6 6. Lc7 Ka7 7. Lb6+ Kb8 8. La7+ Kc7 9. Lb6+ Kd7 10. Lc7 Ke7 11. Lb6 Kf8 12. Lc7 Kg7 13. Lb6 Kh6 14. Lc7 Kg5 15. Lb6 Kf5 16. Lc7 Ke5 17. Lb6 Kd5 18. Lc7 Kc4 19. Lb6 Kb5 20. Lc7 Ka4 21. Lb6 Ka3 22. Lc7 Kb2 23. Lb8 Ka1

WTM: 1. La7 Kb2 2. Lb6 Ka3 3. Lc7 Ka4 4. Lb6 Kb5 5. Lc7 Kc4 6. Lb6 Kd5 7. Lc7 Ke5 8. Lb6 Kf5 9. Lc7 Kg5 10. Lb6 Kh6 11. Lc7 Kg7 12. Lb6 Kf8 13. Lc7 Ke7 14. Lb6 Kd7 15. La7 Kc7 16. Lb6+ Kb8 17. Lc7+ Ka7 18. Lb6+ Ka6 19. Lc7 Kb5 20. Lb6 Ka4 21. Lc7 Ka3 22. Lb6 Kb2 23. Lc7 Ka1 24. Lb8
play all play one stop play next play all
Die kürzestmögliche OR erfordert 23 schwarze Züge (C+), die Zugfolge ist nicht eindeutig.
In "32 personaggi e 1 autore" (p.533) fälschlich ohne wBb7 abgedruckt (aber mit korrekter Steinkontrolle 10+11). Die Korrektur ist nachzulesen in "La genesi delle posizioni" (p.217).
Henrik Juel: The task of changing who has the move can be accomplished in 15 black moves:
1.La7 Kb2 .. 6.Lb8 Kb7 7.La7 Kc7 8.Lb8+ Kc8 9.La7 Kb7 .. 15.La7 Ka1 16.Lb8,
or, if it is Black to move:
1... Kb2 2.La7 Ka3 .. 6.La7 Kb7 7.Lb8 Kc8 8.La7 Kc7 9.Lb8+ Kb7 .. 15.Lb8 Ka1 (2012-07-26)
Mario Richter: Since the wL can lose a tempo on b6-d8, the OR can be done even faster:
WTM: 1.La7 Sb7 2.Lb6 Kb2 3.Ld8 Ka1 4.Lc7 Sd8 5.Lb8
BTM: 1. ... Sb7 2.La7 Sd8 3.Lb6 Sb7 4.Ld8 Kb2 5.Lc7 Sd8 6.Lb8 Ka1
My guess: diagram error. (2012-07-26)
TBr: Indeed, Mario, a diagram error just in "32 personaggi e 1 autore" (p.533), where the diagram is given as here -- but with piece count 10+11!
Correction in "La genesi delle posizioni" (p.217): Add white Pawn b7. (2012-07-26)
Henrik Juel: With a white pawn added on b7, the play by black king is a1-b2-a3-a4-b5 followed by a round trip, the orientation of which depends on who has the move, like in P0005205 (2012-07-26)
A.Buchanan: For an article I am writing, does anyone have any pithy quotes by Ceriani about ortho-reconstruction, preferably in Italian, please? (2023-08-10)
comment
Keywords: Ortho-reconstruction, Königswanderung, Pure Round Trip (k)
Genre: Retro
FEN: 1B1n4/1P3P2/2ppppP1/p1P4p/8/2Pp1PP1/P2p4/kb1K4
Reprints: 13 32 personaggi e 1 autore 1955
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-08-10 more...
2 - P0009122
Satoshi Hashimoto
2950 Phénix 69 12/1998
P0009122
(15+10) C+
BP in 19,0
1. h4 g5 2. hxg5 e5 3. Txh7 Df6 4. Txf7 Th3 5. g4 Te3 6. dxe3 Lb4+ 7. Ld2 d6 8. Lc3 Le6 9. Dd4 Lxa2 10. Sd2 Ld5 11. Txa7 Lf3 12. exf3 Se7 13. Ld3 Kd7 14. Kf1 Kc6 15. Kg2 Sd7 16. Kg3 Th8 17. Ta8 Th1 18. Sh3 Ta1 19. Tc8 Ta8
play all play one stop play next play all
Moldenhauer: Computerprüfung: Stelvio 1.4 Keine Lösung: BP 18.5. (2023-08-17)
comment
Keywords: Unique Proof Game, Pure Round Trip (t)
Genre: Retro
Computer test: Resolution time : 54.34 s., Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong
FEN: r1R5/1ppnnR2/2kp1q2/4p1P1/1b1Q2P1/2BBPPKN/1PPN1P2/8
Reprints: 2 64 Proof Games 2012
Input: Gerd Wilts, 1999-02-27
Last update: Gerd Wilts, 2012-12-23 more...
3 - P0009132
Michel Caillaud
R042 Probleemblad 01/1999
P0009132
(13+15) C+
BP in 24,0
1. g4 c5 2. Lg2 Da5 3. Lc6 Dxa2 4. Lb5 Dd5 5. Ta6 Sh6 6. Tc6 dxc6 7. b3 Lf5 8. Lb2 Sd7 9. Lf6 exf6 10. g5 Ld6 11. g6 Ke7 12. gxh7 Thb8 13. h8=T a5 14. Tc8 a4 15. Tc7 Th8 16. f3 Ke8 17. Kf2 Lf8 18. Kg3 a3 19. Kh4 Ta4+ 20. Kh5 Tg4 21. d4 Sb8 22. Dd3 Dd8 23. Sd2 Lc8 24. Dh7 Sg8
play all play one stop play next play all
Switchback von 7 schwarzen Figuren, davon nur einer mit Schlag!
Henrik Juel: Natch 3.1 made no progress after half an hour (2018-12-13)
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (d), Switchback (sldklst), Promotion (T)
Genre: Retro
Computer test: Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:03:45 Minuten. (hh:mm:ss) Keine Lösung: BP 23.0, BP 23.5.
FEN: 1nbqkbnr/1pR2ppQ/2p2p2/1Bp4K/3P2r1/pP3P2/2PNP2P/6NR
Input: Gerd Wilts, 1999-02-27
Last update: A.Buchanan, 2023-04-01 more...
4 - P0009151
Gianni Donati
R038 Probleemblad 09/1998
Michel Caillaud gewidmet
1. Lob
P0009151
(14+15) C+
BP in 22,0
1. h4 Sf6 2. h5 Sd5 3. h6 gxh6 4. Sf3 Lg7 5. Tg1 Lc3 6. Se5 Kf8 7. f3 Kg7 8. Kf2 Dg8 9. Kg3 Kf8+ 10. Kh4 Dg6 11. d4 Db6 12. Kh5 Db3 13. axb3 Ke8 14. Ta6 Kd8 15. Tf6 exf6 16. Sa3 Se7 17. d5 Te8 18. Dd4 Sg8 19. Da4 Lb4 20. c4 Lf8 21. Sc2 Te7 22. Se1 Ke8
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Round Trip (k), Pure Round Trip (sl)
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.0 00:08:49 Minuten. (hh:mm:ss) Keine Lösung: BP 21.0, BP 21.5.
FEN: rnb1kbn1/pppprp1p/5p1p/3PN2K/Q1P5/1P3P2/1P2P1P1/2B1NBR1
Input: Gerd Wilts, 1999-02-27
Last update: A.Buchanan, 2023-03-13 more...
5 - P0009164
Satoshi Hashimoto
PR16 Problem Paradise 12 01-03/1999
1. Preis
P0009164
(13+14) C+
BP in 21,5
1. a4 Sc6 2. a5 Tb8 3. a6 bxa6 4. Ta4 Tb3 5. Th4 Tc3 6. dxc3 g5 7. Dd6 exd6 8. Le3 Df6 9. Sd2 Df3 10. exf3 g4 11. Ld3 g3 12. Se2 gxh2 13. Sg3 h5 14. Ke2 Lh6 15. Ta1 h1=T 16. Taa4 Ta1 17. Th1 Ta2 18. Ta1 Sd4+ 19. Ke1 Sb5 20. Tah4 c5 21. Th1 h4 22. Lf1
play all play one stop play next play all
Henrik Juel: Natch 3.1 made no progress after half an hour (2018-12-13)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:06:29 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.5, BP 21.0. (2023-03-16)
comment
Keywords: Unique Proof Game, Pure Round Trip (TT)
Genre: Retro
Computer test: Stelvio 1.11, Natch
FEN: 2b1k1nr/p2p1p2/p2p3b/1np5/7p/2P1BPN1/rPPN1PP1/R3KB1R
Reprints: feenschach 153 10-12/2003
9 64 Proof Games 2012
Input: Gerd Wilts, 1999-02-27
Last update: Silvio Baier, 2023-03-20 more...
6 - P0009165
Michel Caillaud
PR17 Problem Paradise 12 01-03/1999
3. ehrende Erwähnung
P0009165
(15+13) C+
BP in 22,5
1. f4 Sc6 2. f5 Tb8 3. f6 exf6 4. a4 Lb4 5. a5 Lc3 6. dxc3 De7 7. Le3 De5 8. Lxa7 b6 9. a6 Tb7 10. Lb8 Sge7 11. a7 Tg8 12. a8=L Ta7 13. Lb7 Ta8 14. h4 Sa7 15. Le4 d5 16. Lxh7 g6 17. h5 Tg7 18. h6 Dh5 19. Lg8 Lf5 20. h7 Sec8 21. h8=D Th7 22. Dg7 Th8 23. Dh7
play all play one stop play next play all
Rundlauf der sTT a8 und h8.
Henrik Juel: Natch 3.1 made no progress after half an hour (2018-12-13)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 27:15:46 Stunden.
Keine Lösung: BP 21.5, BP 22.0. (2023-02-18)
comment
Keywords: Unique Proof Game, Pure Round Trip (tt), Promotion
Genre: Retro
Computer test: Stelvio 1.0
FEN: rBn1k1Br/n1p2p1Q/1p3pp1/3p1b1q/8/2P5/1PP1P1P1/RN1QKBNR
Input: Gerd Wilts, 1999-02-27
Last update: Silvio Baier, 2023-03-03 more...
7 - P0501132
Unto Heinonen
1487 Probleemblad 01/1989
2. ehrende Erwähnung
P0501132
(2+11) C+
h#4
2.1...
1) 1. Kc3+ Sc4 2. Sb4 Sxe3 3. Kb3 Sf1 4. Tc3 Sd2#
2) 1. Tc3 Sf1 2. Kc4 Sxe3+ 3. Kb3+ Sc4 4. Sb4 Sd2#
play all play one stop play next play all
Yuri Bilokin: you can see *) 1...Sf1 2.Rc3 Sxe3 3.Kb3+ Sc4 4.Sb4 Sd2# (2022-12-10)
comment
Keywords: Pure Round Trip (S,S), Tempo Move (k,k)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/2n5/2r5/rk4K1/p3p3/pppNp3/3b4
Reprints: E226 FIDE Album 1989-1991 1997
Input: Gerd Wilts, 1996-06-06
Last update: Marcin Banaszek, 2018-02-13 more...
8 - P0501209
Hilmar Ebert
Hans Gruber
Denis Blondel

12173v British Chess Magazine 1985
1. ehrende Erwähnung
P0501209
(2+13) C+
h#4
1. Tc4 Txa2 2. Tb4 Txb2 3. Ta2 Txb1 4. Ta1 Txa1#
play all play one stop play next play all
Yuri Bilokin: you can see
1...Rxb1 2.a1=Q Rxa1 3.b1=Q+ Rxb1 4.Ra1 Rxa1#
1...Rxb1 2.a1=Q Rxa1 3.b1=R Rxb1 4.Ra1 Rxa1#
1...Rxb1 2.a1=Q Rxa1 3.b1=B+ Rxb1 4.Ra1 Rxa1#
1...Rxb1 2.a1=Q Rxa1 3.b1=S Rxb1 4.Ra1 Rxa1# (2023-05-08)
more ...
comment
Keywords: Pure Round Trip (T), Tempo Move (ttt), Switchback (t), Minimal (T)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: b7/1n6/8/pp2p3/kr1pK3/rp6/pp6/Rn6
Reprints: 12173v British Chess Magazine 01/1986
Input: Gerd Wilts, 1996-06-06
Last update: A.Buchanan, 2017-03-20 more...
9 - P0501242
Risto Pohjonen
1923 Suomen Shakki 05/1988
P0501242
(2+6) C+
h#4
b) wSf2
a) 1. De4 Ld4 2. Td5 Lh8 3. f5 Kg7 4. Ke5 Kf7#
b) 1. Tf5 Kg7 2. Le7 Kh7 3. Kf6 Kh6 4. De6 Sg4#
play all play one stop play next play all
Teppo Mänttä: reprints: 89 Shakkitehtäviä 1999; 762 Minimalkunst im Schach 2006 (2021-04-25)
Teppo Mänttä: Commendation in the informal tourney of Suomen Shakki 1988. (2021-05-28)
comment
Keywords: Hilfsmatt-Inder (LK), Pure Round Trip (K)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/5p2/3bk2K/3q2r1/5p2/8/5B2/8
Input: Gerd Wilts, 1996-06-06
Last update: hpr, 1999-01-09 more...
10 - P0501419
Stanko Milenkovic
101 Problemas 04-06/1964
P0501419
(3+8) cooked
h#4
1. f2 Tb1 2. Sf3 Tb2 3. Ke1 Txc2 4. Sd2 Tc1#
play all play one stop play next play all
Cook: NL
1. Sg2 Th1 2. f2 Th8 3. Ke1 Th2 4. Kf1 Th1#
Adrian Storisteanu: Possible fix:
Kh1 Rb1 / Kc2 Sd1 ppb2 d2 e3 g3 h2 h3 (2+8) h#4
1.e2 Ra1 2.Se3 Ra2 3.Kd1 Rxb2 4.Sc2 Rb1# (2015-07-24)
milan: milan frelih: i've found key solution,your move? (2015-07-24)
milan: Milan Frelih:[Ka1 h1,+bBb1,wPe3=bPe4] (2015-08-31)
Yuri Bilokin: Correction: wKa1-h1, wRc1-b1, bKd2-c2, bPc2-b2, bNe1-d1, bPe2-d2, bPf3-e3, -bPb3, -bPd3, -wPe3, -bPe4, +bQg3 8/8/8/8/8/4p1q1/1pkp4/1R1n3K (2+6) h#4 1.e2 Ra1 2.Se3 Ra2 3.Kd1 Rxb2 4.Sc2 Rb1# (MM) (2022-04-21)
comment
Keywords: Interchange (ks (2)), Pure Round Trip (T)
Genre: h#
FEN: 8/8/8/8/4p3/1pp1Pp2/2pkp3/K1R1n3
Input: hpr, 1996-07-01
Last update: Alfred Pfeiffer, 2015-07-24 more...
11 - P0502654
John Niemann
638 Schachmatt 52 26/10/1947
P0502654
(2+2)
s#4*
Längstzüger
4 x 4-Brett
* 1. ... Tc4 2. Ka1 Tc1#
1. Lc3 Ta2 2. Lb2 Ta4 3. La3 Td4 4. Lb4 Td1#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2021-12-04)
comment
Keywords: Maximummer, no 8x8 board, Aristocrat, Pure Round Trip (L)
Genre: Fairies
FEN: qqqqqqqq/qqqqqqqq/qqqqqqqq/qqqqqqqq/1B2qqqq/1k2qqqq/2r1qqqq/1K2qqqq
Input: hpr, 1996-07-23
Last update: Alfred Pfeiffer, 2018-12-11 more...
12 - P0503084
Beni Snaider
511 The Chess Problem (Whitburn) 29/05/1946
P0503084
(3+3) C+
h#4
1. Db6 Td7 2. Ld6 Ta7 3. Kd5 Ta5+ 4. Kc6 d5#
play all play one stop play next play all
teilweiser Rundlauf T
Yuri Bilokin: Long-trip (wR, 3)
Umnov mate (bK-wP)
Ideal mate
Epaulette mate (2023-05-08)
comment
Keywords: Pure Round Trip
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 2K5/8/3R4/4b3/3Pk3/1q6/8/8
Input: hpr, 1996-09-05
Last update: hpr, 1999-06-06 more...
13 - P0503162
Thomas R. Dawson
2322 Pittsburgh Sun 19/04/1924
P0503162
(5+8) cooked
h#3
1. Th1 Sa1 2. Th4 Sh1 3. Tf4 Sc2#
play all play one stop play next play all
Cook: NL
1. Tf1 Kh8 2. Tf2 Sa1 3. Df4 Sc2#
1. Df4 Sxa1 2. e1=L h6 3. Lf2 Sc2#
teilweiser Rundlauf t
Adrian Storisteanu: Possible fix: bPe4 (instead of the bQ), +wPf5, +bPf6 (6+9). (2015-08-15)
Yuri Bilokin: correction bRd3(-bNd3), bBe4(-bQe4), bPf3(-bBf3) 6K1/8/8/7P/3Pb3/pN1rkpN1/3pp3/r7 (5+8) (2022-12-19)
A.Buchanan: This is very clean Yuri well done. I would shift bPa3 to a5. wK must be exactly on g8, else the problem is cooked (2022-12-20)
comment
Keywords: Pure Round Trip
Genre: h#
FEN: 6K1/8/8/7P/3Pq3/pN1nkbN1/3pp3/r7
Input: hpr, 1996-09-05
Last update: Alfred Pfeiffer, 2015-08-15 more...
14 - P0503164
Aurel M. Karpati
Raketa 04/1942
P0503164
(4+15)
h#5
1. Th8 Lg1 2. Th1 Lf2 3. Td1 Le1 4. Td8 Lb4 5. Te8 Lxc5#
play all play one stop play next play all
teilweiser Rundlauf t
Anton Baumann: C+ Gustav 4.1d (2021-07-26)
comment
Keywords: Pure Round Trip
Genre: h#
FEN: 5br1/2K1krp1/4pqp1/2p1pbp1/4p1p1/4P1P1/7B/1n6
Input: hpr, 1996-09-05
Last update: hpr, 1999-06-06 more...
15 - P0503578
Thomas R. Dawson
2254v Bolton Football Field 06/07/1912
P0503578
(6+3) cooked
h#3
1. Kc3 De6 2. Kxd4 Dxd6+ 3. Ke4 De5#

NL
1. Kc3 Df5 2. Tf8 Kxd6 3. Kxd4 Dd3#
play all play one stop play next play all
Korrektur Hilmar Ebert: +sSe8 (erhält Quasi-Symmetrie)
Yuri Bilokin: Not all pieces in quasi-symmetry are necessary: the white pawn on h2 is superfluous. It is clear that more than 100 years ago there was such a direction in art, although some authors indulge in technical white pawns in our time. (2022-12-19)
A.Buchanan: The technical term for such a position is "symmetric constellation". "Quasi-symmetry" is where the position is nearly symmetric but not quite (e.g. game array except wPa2 is missing). In a symmetric constellation any redundant piece is a definite defect. A quasi-symmetric position is not an ornament, more of a consequence of the content. For example, a number of last move type DD problems are quasi-symmetric (2022-12-20)
Yuri Bilokin: Thanks for the interpretation (2022-12-20)
comment
Keywords: Pure Round Trip (D)
Genre: h#
FEN: 8/4K3/3p1r2/4Q3/3P1P2/8/1k2P2P/8
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 2001-12-21 more...
16 - P0503582
Brian Edwards
1345 The Problemist 05/1989
P0503582
(2+7) C+
h#4
1. Tc2 Th1 2. Kb2 Th8 3. Kc1 Txa8 4. Sb2 Ta1#
play all play one stop play next play all
Erich Bartel: Nachdruck:
1) V35) Problemkiste (125) X 1999.--- (2007-07-18)
Yuri Bilokin: Areal cycle (wR, with captures, 4)
Corner-to-corner (wR) × 4
Four corners (wR (2023-05-08)
comment
Keywords: Pure Round Trip (D)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: r7/6K1/8/5q2/n3b3/1k6/r2p4/R7
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-13 more...
17 - P0503612
Gligor Denkovski
9884v FEENSCHACH 12/1970
P0503612
(3+4)
h#4
1. Se3 Tf7 2. Sg4 Txd7 3. Kf4 Td5 4. e4 Tf5#

NL
1. Se3 Tf3 2. Lg4 Th3 3. Kf4 Kf6 4. e4 fxe3#
play all play one stop play next play all
Yuri Bilokin: Correction: sNd5-g8 6n1/3b4/6K1/4pR2/4k3/8/5P2/8 (3+4) h#4
1.Sh6 Rf7 2.Sg4 Rxd7 3.Kf4 Rd5 4.e4 Rf5# (2022-04-20)
comment
Keywords: Pure Round Trip (T)
Genre: h#
FEN: 8/3b4/6K1/3npR2/4k3/8/5P2/8
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-13 more...
18 - P0503613
Hermann Lücke
1925v Schach-Echo 05/10/1959
P0503613
(3+7) C+
h#4
1. Sb3 Tg2 2. Tf1+ Tg1 3. Ta1 Tc1 4. b1=S Tc2#
play all play one stop play next play all
Yuri Bilokin: Redaction: Yuri Bilokin & Hermann Lücke -wPh2 8/8/8/8/5b2/p4r1p/kpR5/2n4K (2+7) h#4 2.1…
1.Sb3 Rg2 2.Rf1+ Rg1 3.Ra1 Rc1 4.b1=S Rc2# (MM)
1.Ka1 Rh2 2.Se2 Rxh3 3.Rf1+ Kg2 4.Rb1 Rxa3# (MM) (2022-04-25)
comment
Keywords: Pure Round Trip (T)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/8/8/5b2/p4r1p/kpR4P/2n4K
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-13 more...
19 - P0503616
Johann Christoffel van Gool
Jacobus Theodorus Sanderse

876b The Problemist 01/1983
P0503616
(4+5) C+
h#4
2.1...
1) 1. Sc3 Th1 2. Kc2 Th3 3. Kd1 Txc3 4. Ke1 Tc1#
2) 1. Kxb3 Ta1 2. Kc2 Txa2+ 3. Kd1 Tc2 4. Ke1 Tc1#
play all play one stop play next play all
Yuri Bilokin: you can see 1...Ra1 2.Kc2 Rxa2+ 3.Kd1 Rc2 4.Ke1 Rc1# (2023-05-08)
comment
Keywords: Pure Round Trip (T)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/8/8/1p6/1P6/nk1npPK1/2R5
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-13 more...
20 - P0503644
Peter Kniest
3650v Deutsche Schachzeitung 11/1976
P0503644
(3+11) C+
h#4
b) wBb3 nach c2, sBb4 nach c3
a) 1. Dg4+ Lg2 2. De6 Lf1 3. Kd5 La6 4. c5 Lb7#
b) 1. De4 Ld5 2. c6 La2 3. Sb3 cxb3 4. Kd5 b4#
play all play one stop play next play all
Jakob Leck: Version zu P0575203 (2022-10-08)
comment
Keywords: Hilfsmatt-Inder (LB), Pure Round Trip (L)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/1Bp5/3p1p2/2k1r3/1p1p3q/1P5r/3n4/3n2K1
Input: hpr, 1996-09-23
Last update: hpr, 1999-06-13 more...
21 - P0503649
Peter Kniest
6742v Die Schwalbe 09/1942
P0503649
(3+13) cooked
h#4
b) wBg3 nach g2
a) 1. Dd6 Lxb2 2. e6 Lc1 3. Ke5 Lxh6 4. f5 Lg7#
b) 1. Dd4 Le5 2. f6 Lxh2 3. e6 g3 4. Ke5 g4#

NL:
a) 1. Se6 Kxh7 2. Dc3 Kxh6 3. Lc1+ Kh5 4. Lf4 g4#
b) 1. Ke5 g3 2. Sf5 Kg8 3. e6 Lh6 4. Ld4 Lf4#
play all play one stop play next play all
Korrekturvorschlag HJS Co+:wKh8, wLg7, wBg3, sKf5, sDf6, sTa2a8, sLb2g8, sBd5e4e7f7h4
Yuri Bilokin: Good fix, can be more economical: r5bK/4ppB1/5q2/3p1k2/4p3/1rb3P1/8/8 (3+10) h#3 b) wPg3-g2
a) 1.Qd6 Bxc3 2.e6 Bd2 3.Ke5 Bh6 4.f5 Bg7# (MM)
b) 1.Qd4 Be5 2.f6 Bh2 3.e6 g3 4.Ke5 g4# (MM) (2021-06-14)
comment
Keywords: Hilfsmatt-Inder (LB), Pure Round Trip (L)
Genre: h#
FEN: 5n1K/4ppBp/5q1n/3p1k2/4p2p/6P1/rb5r/8
Input: hpr, 1996-09-23
Last update: hpr, 1999-06-13 more...
22 - P0503698
Boris Gelpernas
3611 Problem 08/1974
P0503698
(3+6)
h#4
1. Sf3 Sxf4 2. Kd2 Se6 3. Ke3 Sxc7 4. Kf4 Sd5#

NL
1. Dc2 Kh4 2. f3 Kg3 3. Kd1 Kf2 4. Dc1 Se3#
play all play one stop play next play all
Yuri Bilokin: correction bSe4 1B6/2p5/8/3N1p1K/4np2/8/3n4/2k5 (3+6) h#4

1.Sf3 Sxf4 2.Kd2 Se6 3.Ke3 Sxc7 4.Kf4 Sd5# (IM)

Annihilation × 2
Areal cycle (wS, with captures, 4)
Crusader theme. Kniest theme
Long-trip (wS, 4)
Ideal mate
Battery mate. Double-check mate (2023-05-23)
comment
Keywords: Pure Round Trip (S)
Genre: h#
FEN: 1B6/2p5/8/3N1p1K/4qp2/8/3n4/2k5
Input: hpr, 1996-09-23
Last update: hpr, 1999-06-13 more...
23 - P0503740
Karl Fabel
84v The Problemist 07/1966
P0503740
(8+9) C+
h#14
1. Kb7 Lh3 2. Kc6 Lg4 3. Kd5 Lh3 4. Kc4 d3+ 5. Kxd3 Lg4 6. Kc3 Lh3 7. d3 Lg4 8. d2 Lh3 9. d1=L Lg4 10. Lb3 Lh3 11. Le6 fxe6 12. Kxb4 e7 13. Ka5 e8=D 14. Ka6 Da8#
play all play one stop play next play all
vgl. Karl Fabel 2279 Die Schwalbe 08-09/1966
SCHRECKE: vergleiche: P0559299 (2021-03-23)
comment
Keywords: Pure Round Trip (k), Promotion
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/kp3p1p/1p3P1P/1P1p1pB1/5Pp1/3P2Pp/7K
Input: hpr, 1996-09-23
Last update: hpr, 1999-06-13 more...
24 - P0503753
Joseph Percival Ford
10592 The Fairy Chess Review 08/1956
P0503753
(3+2) C+
h#4
1. Kc5 Ta2 2. Kb5 Kd5 3. Kb4 Kc6 4. Kc4 Ta4#
play all play one stop play next play all
Yuri Bilokin: you can see 1...Ra2 2.Kb5 Kd5 3.Kb4 Kc6 4.Kc4 Ra4# (2023-01-16)
more ...
comment
Keywords: Pure Round Trip (k)
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
FEN: 8/8/8/8/2k1K3/2p5/1RP5/8
Reprints: Problemkiste 99 06/1995
1936 Ideal-Mate Encyclopedia Vol.1 1999
Problemkiste 121 02/1999
r628 Mirador 06/2002
153) Hobelspäne (2) 28/05/2017
Input: hpr, 1996-09-23
Last update: Alfred Pfeiffer, 2019-05-15 more...
25 - P0503768
Thomas R. Dawson
1471v The Chess Amateur 08/1929
P0503768
(8+13) cooked
h#3
1. Dxe5+ Lf5 2. Dxd4 Lc2 3. De4 Lb3#

NL:
1. d1=S Le7 2. Sxb2 Sb3 3. f1=S Sc1#
play all play one stop play next play all
Korrekturvorschlag HJS Co+:wKg5, wLc2f6, wSc5, wBb2d4e5g4, sKa2, sDe4, sTa1h1, sLb1d8, sBb4d5e6f2f7
milan: +wPd6 M.Frelih (2021-12-01)
A.Buchanan: 3b4/5p2/4pB2/2NpP1K1/1p1Pq1P1/8/kPB2p2/rb5r as specified in Korrekturvorschlag HJS is C+ with 2 fewer units (2021-12-02)
comment
Keywords: Pure Round Trip (d)
Genre: h#
FEN: 3b2n1/5p2/4pB2/1pNpP1K1/3Pq1P1/8/kPBp1p1r/rb6
Input: hpr, 1996-09-23
Last update: hpr, 1999-06-19 more...
26 - P0503800
Ljubomir Ugren
3694 Problem 06/1975
P0503800
(3+8)
h#4
1. Te2 Kg5 2. Te5+ Kf4 3. Tg5+ Ke3 4. Tg2 Lxf3#
play all play one stop play next play all
Cook: NL 1. Tg7 La4 2. Te7 Kg6 3. e5 Lc6+ 4. Ke6 d5#
milan: +bPb5 M.Frelih (2016-11-28)
Yuri Bilokin: bQd6, bBb8 1b6/8/3qp2K/3k4/2pP4/5p2/6r1/3B3b (3+8) (2021-06-12)
comment
Keywords: Pure Round Trip (t)
Genre: h#
FEN: 1q6/8/3bp2K/3k4/2pP4/5p2/6r1/3B3b
Input: hpr, 1996-09-23
Last update: Alfred Pfeiffer, 2016-11-28 more...
27 - P0503829
Branko Koludrovic
5007v Die Schwalbe 91 02/1985
P0503829
(6+14) C+
h#4
1. Kf3 Td4 2. Kxe3 Txd3+ 3. Kxf4 Te3 4. Kg4 Te4#
play all play one stop play next play all
Yuri Bilokin: Areal cycle (bK, with captures, 4)
Areal cycle (wR, with captures, 4) (2023-05-08)
comment
Keywords: Pure Round Trip
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/7p/1p3n1p/bp2RPkP/pR1pP3/q2p4/rrnK4
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-20 more...
28 - P0503832
Fadil Abdurahmanovic
(XVI) Problem 09/1962
P0503832
(12+9) C+
h#4
1. Kd2 Lxb6 2. Kxc3 Lc7 3. Kxd4 Lxd6 4. Ke3 Lc5#
play all play one stop play next play all
Yuri Bilokin: Areal cycle (bK, with captures, 4)
Areal cycle (wB, with captures, 4) (2023-05-08)
comment
Keywords: Pure Round Trip
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 2b5/1p1R4/1p1p4/1PB4p/1PpP1p1P/2P1kPpK/2P3P1/3B4
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-20 more...
29 - P0503842
Nikola Stolev
2581 Mat (Belgrade) 07-08/1979
P0503842
(4+10) C+
h#4
2.1...
1) 1. Ke4 Txc4+ 2. Kxe5 Txc5+ 3. Kd4 Tb5 4. e5 Tb4#
2) 1. Kxe5 Tb5 2. Kd4 Txc5 3. Lb5+ Txb5 4. e5 Tb4#
play all play one stop play next play all
Yuri Bilokin: you can see 1...Rxc4+ 2.Kxe5 Rxc5+ 3.Kd4 Rb5 4.e5 Rb4# (MM) (2023-05-08)
comment
Keywords: Pure Round Trip
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/p3p3/p1K1p3/P1p1P3/1Rbk4/2npp3/8/8
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-20 more...
30 - P0503880
Christer Jonsson
14139v Tidskrift för Schack 02/1982
P0503880
(4+5) cooked
h#4
0.2.1...
1) 1. ... Txb8 2. Kc5 Txe8 3. Lc3 Te5+ 4. Kb4 Tb5#
2) 1. ... Te5 2. Dd6 Txe8 3. Kc5 Tb8 4. Ld4 Tb5#

NL:
1. ... Tb6 2. Kc3 Sb5+ 3. Kb4 Sd6+ 4. Ka5 Sc4#
play all play one stop play next play all
Yuri Bilokin: correction +bNd2 1q2b2b/N7/8/1R6/3k4/pP6/3n4/7K (4+6)

AntiZielElement (W1, line obstruction)
Areal cycle (wR, with captures, 4) × 2
Exchange of moves (W1/W3)
JT Onkoud 50 theme
Long-trip (wR, 4) × 2. Many-ways (wR, 2) × 4
Zalokotsky theme (wR/wR, 3)
Model mate × 2.Mates on the same square × 2 (2023-05-08)
comment
Keywords: Pure Round Trip
Genre: h#
FEN: 1q2b2b/N7/8/1R6/3k4/pP6/8/7K
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-20 more...
31 - P0503912
Bernt Gösta Ahlgren
Christer Jonsson
Anders Lundström

616 The Problemist 09/1978
1. Preis
P0503912
(3+9) C+
h#4
2.1...
1) 1. c2 Lxc2 2. Lc3 Lb3 3. Ke4 La2 4. Kd3 Lb1#
2) 1. f2 Lxf2 2. Lf3 Lg3+ 3. Ke3 Lh2 4. Df4 Lg1#
play all play one stop play next play all
Teppo Mänttä: reprint: 120 Tehtäväshakin käsikirja 1995 (2021-08-01)
comment
Keywords: Pure Round Trip (L4,L4)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/K1p5/8/b7/2q2k2/2p2p2/3pp3/1B4Bb
Reprints: 608 FIDE Album 1977-1979
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: A.Buchanan, 2021-08-01 more...
32 - P0503926
Claude Goumondy
4104 Deutsche Schachzeitung 01/1980
P0503926
(3+9) cooked
h#4*
0.2.1...
1) 1. ... Lxb7 2. Le5 Lc8 3. Kd5 Lxd7 4. Ke4 Lc6#
2) 1. ... Th3 2. Ld2 Txh4 3. Kd3 Tf4 4. Ke3 Tf3#

NL:
1. ... Tf1 2. Kd3 Tf2 3. Sf3 Lb5+ 4. Ke3 Txe2#
play all play one stop play next play all
Yuri Bilokin: correction +bQg4, +bPa6, -bNh4, -bPh2 8/1b1p4/p1Bn4/8/2kp1bq1/5R2/4p3/7K (3+9) h#4 0.2.1…
1...Rg3 2.Bd2 Rxg4 3.Kd3 Rf4 4.Ke3 Rf3# (MM)
1...Bxb7 2.Be5 Bc8 3.Kd5 Bxd7 4.Ke4 Bc6# (MM)

Areal cycle (wB, with captures, 4)
Areal cycle (wR, with captures, 4)
Exchange of functions (wRf3/wBc6, Mate / Passive guard)
Long-trip (wB, 4). Long-trip (wR, 4)
Model mate × 2 (2023-05-08)
comment
Keywords: Pure Round Trip
Genre: h#
FEN: 8/1b1p4/2Bn4/8/2kp1b1n/5R2/4p2p/7K
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-20 more...
33 - P0503938
Janko Furman
7058v Probleemblad 09-10/1971
P0503938
(7+13)
h#4
b) sBa6 nach a5
a) 1. Dxe4 La7 2. Dxe3+ Kb4 3. Dxf2 Lc6+ 4. Df3 Lxf3#
b) 1. Dxf2 Lc6 2. Dxe3+ Kb5 3. Dxe4 La7 4. Df3 Lxf3#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force (2022-04-05)
comment
Keywords: Pure Round Trip
Genre: h#
FEN: 1Br2b2/1pp5/p2r4/2K5/B3P3/1b2Pqnp/4PPkp/5n2
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-25 more...
34 - P0503950
Christopher John Feather
10822 British Chess Magazine 07/1975
P0503950
(2+5) C+
h#3
6.1...
1) 1. Lc6 De8 2. Kb7 Dxc6+ 3. Ka6 Da8#
2) 1. Ld5 Dd8+ 2. Kb7 Dxd5+ 3. Ka6 Da8#
3) 1. Le4 Da4 2. Kb7 Dxe4+ 3. Ka6 Da8#
4) 1. Lf3 Df8 2. Kb7 Dxf3+ 3. Ka6 Da8#
5) 1. Lg2 Dg8 2. Kb7 Dxg2+ 3. Ka6 Da8#
6) 1. e5 Dh8 2. Kb7 Dxh1+ 3. Ka6 Da8#
play all play one stop play next play all
Yuri Bilokin: you can see 1...Qh8 2.Kb7 Qxh1+ 3.Ka6 Qa8# (2024-02-09)
comment
Keywords: Pure Round Trip (D,D,D,D,D)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: Q7/2k5/1p2p3/1p6/8/K7/8/7b
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 2004-09-30 more...
35 - P0504914
Henrik Juel
Theodor Steudel

5779 Thema Danicum 73 01/1994
P0504914
(3+3) C+
h#3
1. g1=D d7 2. De1 d8=T 3. Da5 Td6#
play all play one stop play next play all
Henrik Juel: This was found independently by the two authors in response to an exercise asking for problems with a white and a black promotion
The round trip was an added attraction (2021-04-25)
comment
Keywords: Pure Round Trip (B)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 1K6/8/1k1P4/2p5/P7/8/6p1/8
Input: Markus Manhart, 1996-12-25
Last update: hpr, 2015-09-14 more...
36 - P0522922
Albert Zickermann
1758 FEENSCHACH 05-06/1953
P0522922
(5+4) C+
h#6
1. Kd2 e4+ 2. Kd1 e5 3. Ke1 e6 4. Kd1 e7 5. Ke1 e8=D+ 6. Kd1 De2#
play all play one stop play next play all
Yuri Bilokin: you can see 1...e4 2.Kd1 e5 3.Ke1 e6 4.Kd1 e7 5.Ke1 e8=Q+ 6.Kd1 Qe2# (2023-01-14)
comment
Keywords: Excelsior white (auto key), Round Trip, Pure Round Trip (k), Tempo Move (kkk)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/8/8/8/p1p5/PpP1PR2/1K2k3
Input: Markus Manhart, 1998-02-10
Last update: hpr, 2000-10-11 more...
37 - P0559172
Gyula Bebesi
3363 Problem 11/1972
P0559172
(9+8) C+
h#22
1. Ke8 Kg1 2. Kd8 Kh1 3. Kc8 Kg1 4. Kb7 Kh1 5. Ka6 Kg1 6. Ka5 Kh1 7. Ka4 Kg1 8. Kb3 Kh1 9. Kxc3 Kg1 10. Kxc4 Kh1 11. Kxc5 Kg1 12. Kd6 Kh1 13. c5 Kg1 14. c4 Kh1 15. c3 Kg1 16. c2 Kh1 17. c1=D Kg1 18. Dc6 Kh1 19. Dd7 exd7 20. e6 Kg1 21. Ke7 Kh1 22. Kf8 d8=D#
play all play one stop play next play all
more ...
comment
Keywords: Promotion (dD), Pure Round Trip (k)
Genre: h#
Computer test: C+ Gustav 4.1d
FEN: 5k2/2p1p1p1/2p1P1P1/2P1p3/2P5/2P1p1p1/4P1P1/5B1K
Input: Hans-Jürgen Schäfer, 1999-01-01
Last update: A.Buchanan, 2021-04-10 more...
38 - P0564037
Yosif Krikheli
494 Canadian Chess Chat 07-08/1981
P0564037
(3+2) C+ cooked
h#4
0.1...
1. ... Th3 2. Kg5 Tg3 3. Kh4 Txg4+ 4. Kh3 Th4#
play all play one stop play next play all
Cook: NL
1. ... Kg2 2. Kf5,Ke5 Th5+ 3. Ke4 Te5+ 4. Kf4 Lg3#
Yuri Bilokin: Correction: +bpf3 8/8/5k2/8/6nR/5p2/5B2/5K2 (3+3) (2019-02-01)
Yuri Bilokin: Correction: wRh4-h5 8/8/5k2/7R/6n1/8/5B2/5K2 (3+2) (2021-04-16)
A.Buchanan: I don't know what to do here. Clearly we can't disrupt the rook square, so maybe +sBf3 is best as Yuri proposes (2021-04-16)
Yuri Bilokin: It is necessary to decide what is better to break the rook square or the Ideal mate. (2021-04-16)
A.Buchanan: Ideal mates are cheap, but Th4-h3-g3xg4-h4# is a prize. (2021-04-17)
SCHRECKE: why not: +bPh3? (2021-04-17)
A.Buchanan: @SCHRECKE because the rook's movement in a square should not be motivated by capturing, and +sBh3 also blocks wT unnecessarily from h1 & h2. This problem does not appear in WinChloe, at least not in Canadian Chess Chat under this author (who has 891 total compositions - not gone through them all). Maybe he never fixed it. One clean idea is to replace wKf1 with sBg2. This is still an ideal mate. Then put +wKa1 if you must :-) (2021-04-17)
A.Buchanan: +sBg2 & wKa1 is sound, but maybe best to rotate the board as sB threatening to promote is perhaps unfairly distracting to solvers (2021-04-18)
Olaf Jenkner: Is it not a merit? (2021-04-18)
Yuri Bilokin: Correction: wKh1, wRf3, wBd1, bKd5, bBe1, bSe3 8/8/8/3k4/8/4nR2/8/3Bb2K (3+3)
1...Rf2 2.Ke4 Re2 3.Kf3 Rxe3+ 4.Kf2 Rf3# (IM) (2021-04-18)
Adrian Storisteanu: Or, finally, a variation which uses just a bP (not bB) as Andrew suggested, and still makes use of the wK (as does Yuri's):
Bg6 Rd3 Kf1 / Kb5 Sd4 Pf4 (3+3)
1...Re3 2.Kc4 Re4 3.Kd3 Rxd4+ 4.Ke3 Rd3# (2021-04-18)
Adrian Storisteanu: Or, more centred:
Bb7 Re4 Kc2 / Kg6 Pc5 Se5 (3+3)
1...Rd4 2.Kf5 Rd5 3.Ke4 Rxe5+ 4.Kd4 Re4# (2021-04-18)
Adrian Storisteanu: (In the latest, a bPe5 -- instead of bSe5 -- is just as good...) (2021-04-19)
A.Buchanan: Busy - will check these later. But Adrian I didn’t suggest bB but sB i.e. (German) black pawn not bishop (2021-04-19)
Adrian Storisteanu: I understood you fine (but I might have misplaced the text in parentheses). (2021-04-19)
A.Buchanan: With your latest Bb7 Re4 Kc2 / Kg6 Pc5e5, once might as well remove the two black pawns and replace with wPd6 (then rotating the board by 180 degrees). But surely this is not original, and indeed P0510694 by Ugren achieves full h#4. But Yuri has already corrected P0503631 by Krikehli to achieve the same thing! Time to give up - nothing new here. (2021-04-19)
comment
Keywords: Aristocrat, Ideal mate, Pure Round Trip (T), Miniature, Minimal
Genre: h#
Computer test: (In the latest, a bPe5 -- instead of bSe5 -- is just as good...)
FEN: 8/8/5k2/8/6nR/8/5B2/5K2
Input: Markus Manhart, 1999-02-08
Last update: A.Buchanan, 2021-04-16 more...
39 - P0575556
Hans Peter Rehm
Stella Polaris 1966
2. Preis
P0575556
(8+7) C+
ser-h=16
1. Kf5 2. Sd3 3. Sf4 4. Kg4 5. Kf3 6. Sd5 7. Se3 8. Ke2 9. Kd3 10. Sf5 11. Sd4 12. Kxc4 13. Kd5 14. Sf3 15. Se5 16. Ke6 Se3=
play all play one stop play next play all
Erich Bartel: Nachdruck:
Hans+Peter+Rehm=Schach 1994,S.287 (2013-02-15)
more ...
comment
Keywords: Seriesmover, Pure Round Trip (k)
Genre: Fairies
Computer test: Alybadix
FEN: 4N3/4p3/p1P1k1P1/rp2n3/pPP1R3/K7/6N1/8
Reprints: FIDE Album 1965-1967
Input: Felber, Volker, 1999-12-27
Last update: Arnold Beine, 2022-09-15 more...
40 - P1000177
Gianni Donati
9989 Die Schwalbe 170 04/1998
Für den Geburtstag meiner Frau Dana
1. Lob
P1000177
(14+15) C+
BP in 12,0
1. Sc3 b5 2. Sd5 La6 3. Sxe7 Sxe7 4. e4 Sg6 5. e5 Ld6 6. e6 Kf8 7. e7 Kg8 8. e8=S Lg3 9. Sd6 Dh4 10. Sf5 Da4 11. Sd4 b4 12. Se2 Lxe2
play all play one stop play next play all
A.Buchanan: Solved in YouTube: https://www.youtube.com/watch?v=jtEu5g7rUVs (2022-02-17)
comment
Keywords: Unique Proof Game, Promotion (S), Pure Round Trip (B9), Homebase (w), Phoenix (S), Ceriani-Frolkin Theme (S), Prentos Theme (S), Tempo Loss
Genre: Retro
Computer test: (Natch 1.3 Copyright (C) 1997-1999 Pascal Wassong)
FEN: rn4kr/p1pp1ppp/6n1/8/qp6/6b1/PPPPbPPP/R1BQKBNR
Reprints: www.mathpuzzle.com
YouTube 17/02/2022
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2022-02-18 more...
41 - P1000219
Mark Kirtley
10414v Die Schwalbe 177 06/1999
Michel Caillaud gewidmet
P1000219
(16+10)
BP in 21,0
1. e4 a5 2. Dh5 Ta6 3. Dxa5 Th6 4. Da8 Sa6 5. Dxc8 Th5 6. Da8 h6 7. Dxa6 Da8 8. Dg6 Kd8 9. Dh7 Kc8 10. Dxg8 Kb8 11. Dxf8+ Ka7 12. Dxa8+ Kb6 13. Da5+ Kc6 14. La6 Kd6 15. d3 Ke6 16. Ld2 Kf6 17. Lb4 Kg6 18. Kd2 Kh7 19. Kc3 Kg8 20. Sd2 Kf8 21. Te1 Ke8
play all play one stop play next play all
14zügiger Rundlauf des sK
Korrektur in "Die Schwalbe" 181, 02/2000, S.377
Henrik Juel: Natch 3.1 did nothing in more than 3 hours (2018-12-13)
Vladimir Rey: I guess, FEN-misprint. Correct e3 = e4, probably. If p. e3: dual 8. Da6-d3 (2022-11-06)
Moldenhauer: Computerprüfung: Cooked Stelvio 1.5 wenn Bauer auf e3 steht.
Lösezeit: 70:23:07 Stunden. (hh:mm:ss) Keine Lösung: BP 20.5 ca. 22 Std.
Herr Vladimir Rey hat dies schon festgestellt.
8.Da6-d3 Ke8-d8 9.Dd3-h7 Kd8-c8
8.Da6-g6 Ke8-d8 9.Dg6-h7 Kd8-c8
Computerprüfung: C+ Stelvio 1.5 wenn Bauer auf e4 steht.
Lösezeit: 87:04:40 Stunden. Keine Lösung: BP 20.5 ca. 31Std.
Notation ist bereits für Bauer auf e4 richtig.
Richtige FEN: 4k2r/1pppppp1/B6p/Q6r/1B2P3/2KP4/PPPN1PPP/4R1NR
Die Strategien für e3 2944615/ e4 3379466 gerechnet mit 20/21 Playern. (2023-08-28)
comment
Keywords: Unique Proof Game, Pure Round Trip (k)
Genre: Retro
FEN: 4k2r/1pppppp1/B6p/Q6r/1B6/2KPP3/PPPN1PPP/4R1NR
Reprints: 10414 Die Schwalbe 181 02/2000
Input: Gerd Wilts, 2000-08-01
Last update: Alfred Pfeiffer, 2018-12-14 more...
42 - P1000447
Michel Caillaud
R5v Problemesis 10 08/1999
3. Preis
P1000447
(15+14) C+
BP in 17,0
1. a4 a5 2. Ta3 Ta6 3. Tb3 Tc6 4. Tb6 g6 5. Ta6 Lh6 6. Ta8 Sa6 7. Txc8 Sb4 8. Ta8 Db8 9. Ta6 Kd8 10. Tb6 cxb6 11. f3 Tc8 12. Kf2 Sc6 13. b4 Dc7 14. bxa5 Ta8 15. a6 Kc8 16. a5 Dd8 17. Kg3 Sb8
play all play one stop play next play all
Richter H. Gruber "What a correction! Making the previously cooked R5 sound (hopefully), the author simultaneously improved it substantially : Instead of 'only' two, now we have three capture-free black circuits (Dd8, Ta8, Sb8). Everything is based on the need to capture sLc8, and it is achieved virtuously. It is not apparent that sTa8 and sSb8 have to move at all. This makes R5v clearly superior to a number of related tourney entries showing multiple switchbacks (cf. 3rd and 4th Hon. Men.). "
paul: Correction of P1000446 (2022-02-06)
Henrik Juel: There is a funny english error in the judge comment
He probably wanted to say that the author performed like a virtuoso, but wrote 'and it is achieved virtuously.', which has a completely different meaning (2022-02-06)
A.Buchanan: This is very impressive. (2022-02-07)
comment
Keywords: Unique Proof Game, Pure Round Trip (dst)
Genre: Retro
Computer test: Stelvio 1.2, 2:30min
FEN: rnkq2nr/1p1ppp1p/Pp4pb/P7/8/5PK1/2PPP1PP/1NBQ1BNR
Reprints: feenschach 141 06/2001
Input: Gerd Wilts, 2000-08-01
Last update: Reto, 2023-05-11 more...
43 - P1000627
Satoshi Hashimoto
R061 Probleemblad 07/1999
P1000627
(14+15) C+
BP in 18,0
1. e3 f5 2. Lb5 f4 3. Lc6 dxc6 4. Se2 Dd5 5. Tg1 Df3 6. gxf3 Lh3 7. Tg6 Lf1 8. Td6 g5 9. b4 g4 10. Lb2 g3 11. Ld4 g2 12. c3 g1=D 13. Dc2 Dg5 14. Sg3 La6 15. Df5 b5 16. Kf1 exd6 17. Kg1 Dd8 18. Sf1 Lc8
play all play one stop play next play all
Moldenhauer: Computerprüfung: Keine Lösung BP 17.5. (2023-08-17)
comment
Keywords: Unique Proof Game, Pronkin Theme (d), Pure Round Trip (l)
Genre: Retro
Computer test: Resolution time : 26.37 s., Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong
FEN: rnbqkbnr/p1p4p/2pp4/1p3Q2/1P1B1p2/2P1PP2/P2P1P1P/RN3NK1
Reprints: 13 64 Proof Games 2012
Input: Gerd Wilts, 2000-08-01
Last update: Gerd Wilts, 2012-12-23 more...
44 - P1000770
Thierry Le Gleuher
R22 Problemesis 17 10/2000
2. Lob
P1000770
(16+12)
BP in 8,5
Einsteinschach
1. g4 f5 2. gxf5[=wS] d6 3. Sxe7[=wL] Lh3[=sS] 4. Lh4[=wS] Dg5[=sT] 5. Sxh3[=wL] Tg2[=sL] 6. Lfxg2[=wT] Le7[=sS] 7. Tgg1[=wL] Sf5[=sB] 8. Lf1[=wS] Se7[=sB] 9. Sg2[=wB]
play all play one stop play next play all
Richter H. Gruber: "The most impressive of the Echecs Einstein proofgames. Specific exchange of places of Lf1/Sg1, each moving once and capturing once. The circuit of wBg2 includes one pawn move, two moves and two captures of non-pawn pieces. In sum, most pieces are back on their initial game array squares. "
Joost de Heer: Bf1 and Sg1 should be swapped. (2002-09-15)
paul: Jacobi+ (2021-12-13)
comment
Keywords: Unique Proof Game, Einstein Chess, Interchange, Pure Round Trip
Genre: Retro, Fairies
FEN: rn2k2r/ppp1p1pp/3p4/5p2/8/8/PPPPPPPP/RNBQKNBR
Input: Gerd Wilts, 2000-10-02
Last update: A.Buchanan, 2013-03-13 more...
45 - P1000946
Thierry Le Gleuher
v StrateGems 6 04-06/1999
Lob TT
P1000946
(15+15) C+
BP in 25,5
1. Sc3 Sf6 2. Se4 Sd5 3. Sf6 gxf6 4. h4 Lh6 5. Th3 Kf8 6. Tb3 Kg7 7. Tb6 Dg8 8. b4 Kf8 9. Lb2 Dg3 10. Le5 Db3 11. axb3 a6 12. Ta5 Ta7 13. Tab5 a5 14. e3 a4 15. Le2 a3 16. Lh5 a2 17. Dg4 a1=D+ 18. Ke2 Dd4 19. De6 Dg4+ 20. Kd3 Dg8 21. g4 Kg7 22. g5 Dd8 23. g6 Kf8 24. g7+ Ke8 25. g8=S Lf8 26. Sh6
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Pronkin-Thema mit der eingeschlossenen sD. Ein sS könnte a1 nicht mehr verlassen. Ein sT könnte h8 nicht mehr erreichen, und von a8 kann kein sT auf b3 geschlagen werden, da dazu der sBa7 zuerst nach a5 müsste und damit der wTa1 nicht mehr ohne Schlag des sBa nach b5 kann.
paul: Correction of P1000530 (2010-05-05)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 19:31:47 Stunden.
Keine Lösung: BP 24.5, BP 25.0. (2023-02-15)
comment
Keywords: Unique Proof Game, Phoenix (S), Pronkin Theme (d), Pure Round Trip (k), Tempo Loss (b1)
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1nbqkb1r/rppppp1p/1R2Qp1N/1R1nB2B/1P5P/1P1KP3/2PP1P2/6N1
Reprints: H33 FIDE Album Annexe 1998-2000 2009
Input: Gerd Wilts, 2000-10-15
Last update: Silvio Baier, 2023-03-02 more...
46 - P1001146
Satoshi Hashimoto
(13) Probleemblad 03/1999
P1001146
(14+16) C+
BP in genau 6,5
1. e3 Sf6 2. e4 Sxe4 3. Sa3 Sc3 4. Tb1 Sxb1 5. Sb5 Sa3 6. Sc3 Sc4 7. Sb1
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Mario Richter: brauchen wir wirklich zwei verschiedene Keywords - hier "Tempoverlustmanöver", bei z.B. P1007491 hingegen "Loss of tempo"? (2018-10-21)
Henrik Juel: Good point, Mario
Other things in the never-ending Keyword discussion include:
Tempoverlustmanöver is currently called the same in english and french, and has no definitions
Loss of tempo (Tempoverlust in german) is defined as
'With White to play, a sequence of moves to reach the same position with Black to play. (Help game, abbr .: TV)'
which makes little sense in proof games
In this problem [Pe2] goes e2-e3-e4 ('wasting' a move)
In P1007491 [Pc2] similarly goes c2-c3-c4-... and [Lc8] goes (among other things) c8-b7-a6-c8 ('triangulation') (2018-10-21)
Henrik Juel: There are many solutions in 6.0 moves, like
1.Sb1-c3 Sg8-f6 2.Pe2-e4 Sf6xe4 3.Sc3-a4 Se4-c3 4.Ra1-b1 Sc3xb1 5.Sa4-c3 Sb1-a3 6.Sc3-b1 Sa3-c4
Correction: Change the stipulation to
BP in exactly 6.5 (2024-03-10)
comment
Keywords: Unique Proof Game, Pure Round Trip (S), Homebase (w), Tempo Losing Manouevre (weP)
Genre: Retro
Computer test: (Natch 1.3 Copyright (C) 1997-1999 Pascal Wassong)
FEN: rnbqkb1r/pppppppp/8/8/2n5/8/PPPP1PPP/1NBQKBNR
Reprints: (2) Schweizerische Schachzeitung 05/2005
Input: Gerd Wilts, 2001-02-11
Last update: A.Buchanan, 2024-03-11 more...
47 - P1003973
Michel Caillaud
R55 Problemesis 26 04/2002
2. Preis
P1003973
(16+11) C+
BP in 18,0
1. d4 c5 2. d5 Db6 3. Dd4 Db3 4. axb3 f5 5. Ta6 f4 6. Tc6 f3 7. Sxf3 e5 8. Sxe5 a5 9. Sxd7 a4 10. bxa4 h5 11. b3 h4 12. Lb2 h3 13. Dh4 Sa6 14. f4 Sb4 15. Kf2 Sd3+ 16. Kg1 Se5 17. Sb8 Sd7 18. Sa6 Sb8
play all play one stop play next play all
Rundlauf des sSb8 in 6 Zügen.
Henrik Juel: Natch 3.1 found the solution quickly, but did not finish in more than an hour (2018-12-16)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 nach nur 1 Sekunde. (2023-02-09)
Henrik Juel: and no solution in 17.5 moves, so C++ Stelvio 1.0 (2023-02-09)
Henrik Juel: Fine motivation for the round trip: making room for white Sd7-b8-a6 (2023-02-09)
comment
Keywords: Unique Proof Game, Pure Round Trip (s)
Genre: Retro
Computer test: Stelvio 1.0
FEN: rnb1kbnr/1p4p1/N1R5/2pP4/P4P1Q/1P5p/1BP1P1PP/1N3BKR
Reprints: feenschach 153 10-12/2003
(H) Quartz 28 07-09/2005
Input: Gerd Wilts, 2002-03-31
Last update: Silvio Baier, 2023-03-02 more...
48 - P1004047
Mark Kirtley
Gianni Donati

R150 Probleemblad 5 09-10/2001
1. Lob
P1004047
(11+15) C+
BP in 25,0
1. h4 f5 2. Th3 f4 3. Tb3 f3 4. Tb6 axb6 5. h5 Ta3 6. h6 Td3 7. a4 gxh6 8. a5 bxa5 9. Ta4 b6 10. Td4 Lb7 11. Td6 exd6 12. e3 Se7 13. De2 Sc8 14. Kd1 Le7 15. De1 0-0 16. Le2 Kh8 17. Df1 fxe2+ 18. Ke1 Tf3 19. Sa3 Th3 20. g3 Lh1 21. Dg2 Dg8 22. Dc6 Db3 23. cxb3 Ld8 24. Dc2 c6 25. Dd1 Lc7
play all play one stop play next play all
7zügiges Tempoverlustmanöver der wD, die kompliziert auf dem Königsflügel freigeschleust werden muss.
more ...
comment
Keywords: Unique Proof Game, Tempo Loss, Pure Round Trip (D), Switchback (K), Castling
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1nn4k/2bp3p/1ppp3p/p7/8/NP1rP1Pr/1P1PpP2/2BQK1Nb
Reprints: Best Problems 47 07/2008
Input: Gerd Wilts, 2002-04-05
Last update: A.Buchanan, 2023-05-14 more...
49 - P1004214
Gianni Donati
R0100c StrateGems 20 10-12/2002
5.-7. Preis ex aequo
P1004214
(11+15) C+
BP in 22,5
1. Sf3 e5 2. Sd4 exd4 3. Sc3 dxc3 4. dxc3 g6 5. Le3 Lh6 6. Lb6 axb6 7. Dd4 Ta5 8. Td1 Lc1 9. Td3 Tg5 10. Tf3 d5 11. Tf6 Lg4 12. Td6 Lxe2 13. Td7 La6 14. Lb5 h5 15. Lc6 Sxc6 16. a4 Db8 17. Te7+ Kd8 18. Te4 h4 19. De5 h3 20. Tb4 Th4 21. Tb3 Sb4 22. Ta3 c6 23. Ta1
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wTa1 wandert nach d7 zum Schachschutz für den wLf1. 12zügier Rundlauf des wTa1.
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 5 Sekunden.
Keine Lösung: BP 21.5, BP 22.0. (2023-02-18)
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (T), Check Protection
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1q1k2n1/1p3p2/bpp3p1/3pQ1r1/Pn5r/2P4p/1PP2PPP/R1b1K2R
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2002-10-05
Last update: Silvio Baier, 2023-03-02 more...
50 - P1004457
Michel Caillaud
837 Orbit 15 07/2002
2. Preis
P1004457
(15+14) C+
BP in 14,0
1. d4 Sc6 2. Kd2 Se5 3. Ke3 Sf3 4. Sd2 Sxg1 5. f3 c6 6. Kf2 Db6 7. Ke1 Db3 8. axb3 f5 9. Ta5 f4 10. Tf5 d6 11. Txf8+ Kd7 12. Td8+ Ke6 13. Td7 Kf7 14. Tc7 Ke8
play all play one stop play next play all
Rundlauf der beide KK.
Vladimir Rey: Correct: 6. Kf2 Db6 (2022-07-27)
comment
Keywords: Unique Proof Game, Pure Round Trip (Kk)
Genre: Retro
Computer test: Resolution time : 1 mn 13.30 s., Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong
FEN: r1b1k1nr/ppR1p1pp/2pp4/8/3P1p2/1P3P2/1PPNP1PP/2BQKBnR
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2003-02-01
Last update: Mario Richter, 2022-07-27 more...
51 - P1004461
Ivan Denkovski
Gligor Denkovski

972 Orbit 17 01/2003
1. Lob
P1004461
(12+12)
BP in 16,5
1. e3 a5 2. Ld3 Sa6 3. Lg6 hxg6 4. h4 Th5 5. Sh3 Tb5 6. h5 Txb2 7. h6 Txa2 8. hxg7 Ta4 9. La3 Th4 10. Lxe7 Th8 11. Lg5 Df6 12. gxf8=T+ Ke7 13. Txc8 Txc8 14. 0-0 Tf8 15. Kh2 Ke8 16. Kg3 Dd8 17. Sg1
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in an hour (2018-12-17)
Moldenhauer: Computerprüfung: C+ Euclide 1.11 5 Std. 32 Min. nur eine Lösung!
Keine Lösung bei BP 15.5 in 21 Min. und BP 16.0 in 45 Min.
Notation OK. (2022-12-21)
more ...
comment
Keywords: Ceriani-Frolkin Theme (T), Unique Proof Game, Pure Round Trip (t), Switchback (dkS)
Genre: Retro
FEN: 3qkrnr/1ppp1p2/n5p1/p5B1/8/4P1K1/2PP1PP1/RN1Q1RN1
Input: Gerd Wilts, 2003-02-01
Last update: Olaf Jenkner, 2016-09-03 more...
52 - P1007527
Jean-Marc Loustau
8750 Die Schwalbe 151 02/1995
P1007527
(3+4)
s=9
Längstzüger
(J.-M. Loustau, Heft 151, 2/1995). Gleich dreifaches Pech hatte der Autor mit diesem Stück. Zunächst kocht der SB das Stück als em s#9 / und muß durch den Autor darauf hingewiesen werden, daß es sich um ein em Patt / handelt. Beginnend mit Heft 151 wurden die Forderungen durch Abkürzungen ersetzt; und unser SL hat aus dem em Selbstpatt / ein em s#9 gemacht - ja Längstzüger wird halt fast automatisch mit s# verbunden! Und dann verschläft der SB auch noch die Lösungsbesprechung - nur gut, daß PvdH, unser 95er Preisrichter, aufgepaßt hat... Lösung: Sofort 1.Sf6? T:f6 scheitert an 2.g:f6! Deshalb muß zuvor der wBg5 abgeräumt werden: 1.Sc5 EQa3 2.Sd3 EQg3 3.Se5 EQc7 4.Sc4 EQc1 5.Se3 EQ:g5 (weg ist er!) 6.Sd5 EQa5 7.Sc3 EQe1 8.Se4 EQe7 und nun 9.Sf6 T:f6=. 8zügiger S-Rundlauf im 3$ times$3-Quadrat und großer Stern der sEQ.
play all play one stop play next play all
Jean-Marc Loustau: To be mentionned also the set play:
1... EQe1 2.Sc3 EQa5 3.Sd5 EQ:g5 4.Se3 EQc1 5.Sf5 Ra3 6.Sg3 R:g3=
Anton Baumann: unlösbar! Gemäss Definition im Märchenschachlexikon kann der Equihopper nicht über 2 Steine hüpfen.
Der Zug 2. ... EQa3-g3 ist wegen sTf3 illegal. (2023-01-05)
more ...
comment
Keywords: Maximummer, Pure Round Trip (S)
Pieces: sl = Equihopper (E)
Genre: Fairies
FEN: 6k1/4*3n3/6pK/6P1/4N3/5r2/8/8
Input: Gerd Wilts, 2003-06-29
Last update: HBae, 2010-07-30 more...
53 - P1009555
Horst Bäcker
2854 Problemkiste 12/1991
P1009555
(2+7)
#14
SpiegelCirce
Längstzüger
1. Kg3 Ld4 2. Kh4 La7 3. Kh5 Ld4 4. Kh6 La7 5. Kg7 Ld4 6. Kxf7[+sBf2] La7 7. Ke7 Ld4 8. Kd6 La7 9. Kd5 Ld4 10. Kxd4[+sLc1] La3 11. Kxe3[+sBe2] Lc1+ 12. Kf3 Lxf4[+wBf7] 13. f8=D Lb8 14. Dxf6#
play all play one stop play next play all
Gleichmässiger wK-Rundlauf (Autor)
Anton Baumann: C+ Alybadix (2023-03-02)
comment
Keywords: Pure Round Trip (K), Maximummer, Circe (Spiegel)
Genre: Fairies
FEN: 8/b4p2/5p2/5k2/1p3P2/2p1pK2/8/8
Input: HBae, 2003-09-27
Last update: Erich Bartel, 2017-09-08 more...
54 - P1011888
Michel Caillaud
Reto Aschwanden

Retros mailing list 31/12/2003
5. Preis
Gianni Donati 50th Jubilee Tourney
P1011888
(15+14) C+
BP in 24,5
1. c4 e5 2. c5 Ld6 3. cxd6 c5 4. Db3 c4 5. Dh3 c3 6. d3 c2 7. Ld2 c1=L 8. b4 Lb2 9. Sa3 Lc3 10. 0-0-0 g5 11. Le1 Ld2+ 12. Kb2 g4 13. Tc1 g3 14. Txc8 gxf2 15. Tc3 Dh4 16. g3 Sf6 17. Lg2 f1=L 18. e3 Le2 19. Sc4 Lf3 20. Se2 Tg8 21. Tf1 Tg6 22. Lh1 Lg2 23. Tf3 Lf1 24. Ka3 Lc1+ 25. Sb2
play all play one stop play next play all
Matching squares traced by the promoted Bishops! That this is managed without extra-set pieces is astounding. (PR Gianni Donati)
Cook: 1. c4 e5 2. c5 Ld6 3. cxd6 g5 4. d3 g4 5. e3 g3 6. Dg4 c5 7. Sc3 c4 8. Sa4 c3 9. Ld2 Sh6 10. 0-0-0 c2 11. b4 Tg8 12. Kb2 gxf2 13. g3 Tg6 14. Lg2 f1=L 15. Ka3 c1=L+ 16. Sb2 Le2 17. Le1 Ld2 18. Tc1 Sg8 19. Txc8 Lc1 20. Tc3 Lf3 21. Se2 Dh4 22. Tf1 Sf6 23. Lh1 Lg2 24. Tf3 Lf1 25. Dh3
Henrik Juel: an important keyword is missing: Donati theme
same in (some of) P1011889-P1011929 (2018-12-18)
Henrik Juel: Natch 3.1 found nothing in half an hour (2018-12-18)
Michel Caillaud: Reprint : H71 p.585, FIDE Album 2001-03

Cooked using Jacobi 0.7.5 with constraints :
1.c4 e5 2.c5 Ld6 3.cxd6 g5 4.d3 g4 5.e3 g3 6.Dg4 c5 7.Sc3 c4 8.Sa4 c3 9.Ld2 Sh6 10.0-0-0 c2 11.b4 Tg8 12.Kb2 gxf2 13.g3 Tg6 14.Lg2 f1=L 15.Ka3 c1=L+ 16.Sb2 Le2 17.Le1 Ld2 18.Tc1 Sg8 19.Txc8 Lc1 20.Tc3 Lf3 21.Se2 Dh4 22.Tf1 Sf6 23.Lh1 Lg2 24.Tf3 Lf1 25.Dh3

Correction : sTg6 to g4 (21...Tg4 instead of 21...Tg6 in the solution)
With the set of constraints used to uncork the cook, Jacobi 0.7.5 finds only the intended solution... (2021-09-20)
Michel Caillaud: The correction sTg6 to g4 was published in StrateGems 99 (p.138, sept. 2022)
It is C+ by Stelvio 0.93 (2022-12-18)
comment
Keywords: Unique Proof Game, Round Trip, Pure Round Trip (ll), Obvious promotion (l), Promotion (ll), Donati Theme
Genre: Retro
Computer test: Resolution time: Natch 3.3: ---, Euclide 1.11: ---, Stelvio 1.14: 15:10min
FEN: rn2k3/pp1p1p1p/3P1n2/4p3/1P4rq/K1RPPRPQ/PN2N2P/2b1Bb1B
Input: Gerd Wilts, 2004-01-01
Last update: Silvio Baier, 2023-08-15 more...
55 - P1013119
Rustam Ubaidullajew
4409 Phénix 124 12/2003
P1013119
(16+16) C+
BP in 22,0
1. h4 Sf6 2. Th3 Sd5 3. Tc3 f6 4. Tc5 Kf7 5. c4 Ke6 6. Dc2 Ke5 7. Df5+ Kd4 8. d3 a5 9. Lf4 Ta6 10. Sd2 Te6 11. Ld6 Sb4 12. f4 S4c6 13. Kf2 Se5 14. Kg3 Sf7 15. Kg4 Sh6+ 16. Kh5 Sg8 17. g4 h6 18. Kg6 Ke3 19. h5 Kf2 20. Sh3+ Kg3 21. Sf2 Kh4 22. Sh1 De8+
play all play one stop play next play all
8zügiger Rundlauf des sSg8 zwecks Schachschutz auf d5.
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (s), Check Protection, Capture-free
Genre: Retro
Computer test: Computerprüfung: C+ Stevio 1.0 34 Sekunden. Keine Lösung: BP 21.0, BP 21.5.
FEN: 1nb1qbnr/1pppp1p1/3BrpKp/p1R2Q1P/2P2PPk/3P4/PP1NP3/R4B1N
Input: Gerd Wilts, 2004-03-13
Last update: A.Buchanan, 2023-03-13 more...
56 - P1017682
Unto Heinonen
Springaren 1997
3. Preis
P1017682
(14+16) cooked
BP in 26,0
1. b4 Sh6 2. Lb2 Tg8 3. Lf6 gxf6 4. Sc3 Tg3 5. Tb1 Th3 6. g4 Sa6 7. Lg2 Tb8 8. Lc6 bxc6 9. g5 Tb5 10. g6 Tbh5 11. b5 Sg4 12. b6 Lh6 13. Tb5 Sb4 14. Tg5 La6 15. b7 Lb5 16. b8=L a6 17. La7 Da8 18. Le3 c5 19. g7 Dg2 20. g8=L Sc6 21. Tg7 Lg5 22. Sf3 h6 23. Lh7 Sb8 24. Le4 f5 25. Lb7 Sf6 26. Sd5 Sg8
play all play one stop play next play all
Cook: 1. Sb1-c3 b7-b6 2. Ta1-b1 Lc8-a6 3. b2-b4 La6-d3 4. b4-b5 Dd8-c8
5. Tb1-b4 Sb8-a6 6. Tb4-c4 Ta8-b8 7. Tc4-c5 b6xc5 8. Lc1-b2 Tb8-b6
9. g2-g4 Tb6-h6 10. b5-b6 Th6-h3 11. b6-b7 Sg8-h6 12. b7-b8=T Th8-g8
13. Tb8-b6 Sa6-b8 14. Lf1-g2 Dc8-a6 15. Tb6-f6 g7xf6 16. Lg2-b7 Tg8-g5
17. Sc3-d5 Tg5-h5 18. g4-g5 Ld3-b5 19. g5-g6 f6-f5 20. g6-g7 Da6-g6
21. Lb2-d4 Dg6-g2 22. g7-g8=T a7-a6 23. Tg8-g3 Sh6-g8 24. Ld4-e3 Lf8-h6
25. Tg3-g7 Lh6-g5 26. Sg1-f3 h7-h6
paul: First 22.5 moves tested with Euclide 1.11 (~11h) (2017-12-29)
Henrik Juel: Now things are OK, I think
Earlier the solution given was for a BP in 19, starting 1.b4 c5 (2017-12-29)
Olaf Jenkner: Yes, I overlooked the date of the first comment. I would not have asked. (2017-12-29)
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip
Genre: Retro
Computer test: Reto: Cooked by Stelvio 1.11
FEN: 1n2k1n1/1BppppR1/p6p/1bpN1pbr/8/4BN1r/P1PPPPqP/3QK2R
Reprints: feenschach 153, p. 191, 10-12/2003
H16 FIDE Album Annexe 1995-1997 2004
Input: Gerd Wilts, 2004-08-06
Last update: Mario Richter, 2023-04-01 more...
57 - P1043920
Jan Dobrusky
Shakhmatnoe obozrenie 1901
1. Preis
Thematurnier 1901
P1043920
(5+7) C+
#4
1. Da1-a8! droht 2. Sf2-g4+ Ke5-e4 3. Sd5-c3#, 3. Sd5-f6#
1. ... Sd4-b3,S~ 2. Da8-e8+ Ke5-d4,Kxd5 3. De8-e4#
1. ... Sd4-e6 2. Da8-h8+ Se6-g7 3. Dh8-h1 Lc4xd5 4. Dh1-a1#
1. ... Lf4-c1,Lf~ 2. Da8-e8+ Sd4-e6 3. De8xe6+ Ke5-d4,Kxd5 4. De6-e4#
1. ... Lf4-g5 2. Sf2-g4+ Ke5-e4 3. Sd5-f6+ Ke4-f4 4. Sf6-h5#
1. ... d3-d2 2. Da8-e8+ Sd4-e6 3. De8xe6+ Ke5-d4,Kxd5 4. De6-e4#
play all play one stop play next play all
Thematurnier 1901: Verlangt war der Rundlauf der wD über alle vier Eckfelder.
more ...
comment
Keywords: Brian Stephenson Collection (28916), Four corners (wD), Pure Round Trip (D), Model mate
Genre: n#
Computer test: Popeye 4.67
FEN: 8/3B4/1K1p4/2pNk3/2bn1b2/3p4/5N2/Q7
Reprints: 2870 Leipziger Illustrirte Zeitung 01/05/1902
8 Gazette de Lausanne 06/03/1932
431 Arbeiter-Zeitung (Wien) 05/11/1933
Politiek en Cultuur 04/1937
19 Schach-Express , p. 12, 01/04/1947
406 Freie Presse (Chemnitz) 17/10/1964
85 Schach ohne Partner [Grasemann] , p. 94, 1977
1285 Szachy 03/1978
4a-1767 2345 Chess Problems 1997
247 Versunkene Schätze , p. 109, 1998
8 Schachexpress (DBSB) 12/2011
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-02-22 more...
58 - P1050658
Manfred Zucker
5156 Deutsche Schachzeitung , p. 192, 05/1987
P1050658
(4+4) C+
#5
1. Ld6! c5 2. Lxc5 Kf4 3. Ld4 Kg5 4. Le5 Kh6 5. Lf4#
4. ... Kh4 5. Lf6#
play all play one stop play next play all
Kleinster Rundlauf eines weißen Läufers, der unterwegs einen schwarzen Bauern vertilgt, im Achtsteiner — hübsch.
(MZ660)
more ...
comment
Keywords: Brian Stephenson Collection (35695), Model mate, Pure Round Trip (L)
Genre: n#
Computer test: SCHRECKE: Gustav 4.1d
FEN: 8/5K2/2p3B1/4B1k1/6p1/6p1/6P1/8
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-01-03 more...
59 - P1051943
Manfred Zucker
1397 Die Schwalbe 30 12/1974
Der "Schwalbe" zum 50-jährigen Jubiläum gewidmet
5. ehrende Erwähnung
P1051943
(4+6)
#4
1. Lc1 Sxc2 2. Lb2+ Kb1 3. Lc3+ Kc1 4. Ld2#
play all play one stop play next play all
(MZ357)
Sally: Schwalbe, Dez. 1974: Der Schwalbe zum 50- jährigen
Jubiläum gew, .5. ehr Erw.
Läuferrundlauf auf engstem Raum mit Matt auf dem Ausgangs-
feld: 1. Lc1! -Sxc2, 2.Lb2+ - Kb1, 3. Lc3+ - Kc1, 4.Ld2#.
Umgekehrt gehts nicht: !. Dd1? -Sb5, 2. Df1 -Bh5, 3. Sg5+ -Kd4! (2010-08-26)
Henrik Juel: C+ Popeye 4.61 (2021-03-09)
comment
Keywords: Brian Stephenson Collection (36983), Pure Round Trip (L), Model mate
Genre: n#
FEN: 8/1r2p3/8/8/1p6/1R6/p1BBK3/k3n3
Reprints: 97 Schachexpress (DBSB) 12/2013
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2021-03-09 more...
60 - P1066801
Rustam Ubaidullajew
R074 Problem Paradise 10-12/2002
3. Preis
P1066801
(14+16) C+
BP in 27,5
1. g4 d5 2. g5 Lg4 3. Lg2 f5 4. Le4 Kf7 5. Ld3 Kg6 6. Lb5 Kh5 7. Le8+ Kh4 8. Lh5 g6 9. Kf1 Lg7 10. Kg2 Le5 11. Df1 Lg3 12. f4 Sf6 13. Df3 Dg8 14. De4 dxe4 15. Sh3 Dc4 16. Tf1 Td8 17. Tf3 Se8 18. Ta3 Td3 19. Sc3 Tf3 20. Sd5 Tf1 21. Sf6 Txc1 22. Sg8 Th1 23. Tf1 Sd7 24. Tff3 Sb6 25. Tfb3 Sc8 26. e3 Ld1 27. Le2 b6 28. Lf1
play all play one stop play next play all
Henrik Juel: Natch 3.1 did hardly anything in almost an hour (2018-12-17)
Henrik Juel: Same after 4 hours (2018-12-17)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 120:10:08 Stunden. (hhh:mm:ss)
Keine Lösung: BP 26.5, BP 27.0. (2023-04-06)
Henrik Juel: Thanks, Moldenhauer
Your computer is very patient...
120 hours = 5 days! (2023-04-06)
comment
Keywords: Unique Proof Game, Pure Round Trip (L)
Genre: Retro
Computer test: Stelvio 1.2, 7:40h. The reduction in time is due to the fact that I had a lot of RAM at hand, which is very useful for this problem. There are only 8 strategies, but they take long to play.
FEN: r1n1n1N1/p1p1p2p/1p4p1/5pP1/2q1pP1k/RR2P1bN/PPPP2KP/3b1B1r
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2004-10-17
Last update: Reto, 2023-05-13 more...
61 - P1066806
Roberto Osorio
R077 Problem Paradise 10-12/2003
3. ehrende Erwähnung
P1066806
(9+15) C+
BP in 23,5
1. g3 Sc6 2. Lg2 Sd4 3. Lc6 dxc6 4. Kf1 Lf5 5. Kg2 Lg6 6. Df1 Sf5 7. Kf3 Kd7 8. Ke4 Kd6 9. Kd3 Kc5+ 10. Kc3 Dd5 11. Dh3 Dxa2 12. Dxh7 Dxb1 13. Dh4 Dxc1 14. Da4 Txh2 15. Sh3 Dxh1 16. Tg1 a5 17. Da1 Kb5 18. Kb3 a4+ 19. Ka2 a3 20. Kb1 a2+ 21. Kc1 Ta3 22. Kd1 Txg3 23. Ke1 Tgg2 24. Dd1
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (KD)
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.4 in 10:29:19 Stunden. (hh:mm:ss) Keine Lösung: BP 23.0. Stelviodaten: 2 Seeker/16 Player 108 GB.
FEN: 5bn1/1pp1ppp1/2p3b1/1k3n2/8/7N/pPPPPPrr/3QK1Rq
Input: Gerd Wilts, 2004-10-17
Last update: A.Buchanan, 2023-07-28 more...
62 - P1066911
Heinz Zander
6161 Schach-Echo 16, p. 255, 08/1970
5. ehrende Erwähnung
P1066911
(10+6) C+
s#5*
* 1. ... Dxc5#
1. De3+! Dd3 2. Dc1+ Dc2 3. Dxa3+ Db3 4. Dc5+ Dc4 5. a3 Dxc5#
play all play one stop play next play all
Temposchöpfer wBauer
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-09-27)
comment
Keywords: Pure Round Trip (Dd), Tempo Creation wP
Genre: s#
FEN: 8/8/P4p2/K1Q2P2/R1q5/p1k2p1p/P4R1P/N3N3
Input: Frank Müller, 2004-11-01
Last update: Marcin Banaszek, 2021-10-02 more...
63 - P1067420
Michel Caillaud
StrateGems 2001
1. Preis
P1067420
(12+16) C+
BP in 22,5
1. c4 h5 2. c5 Th6 3. c6 Txc6 4. a4 Txc1 5. Ta3 c5 6. Tc3 Da5 7. Sa3 Ta1 8. Tc1 Dc3 9. f4 a5 10. f5 Ta6 11. f6 Txf6 12. Sh3 b6 13. Sf4 La6 14. Kf2 Ld3 15. Ke3 Ta2 16. Sd5 Txf1 17. h4 f5 18. Th3 Th1 19. Tf3 Th2 20. Tf1 f4+ 21. Kf2 f3 22. Ta1 Lb1 23. Th1
play all play one stop play next play all
Rundlauf der beiden wTT.
Henrik Juel: Natch 3.1 made no progress after an hour (2018-12-15)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 3 Sekunden.
Keine Lösung: BP 21.5, BP 22.0. (2023-02-18)
comment
Keywords: Unique Proof Game, Pure Round Trip (TT)
Genre: Retro
Computer test: Stelvio 1.0
FEN: 1n2kbn1/3pp1p1/1p6/p1pN3p/P6P/N1q2p2/rP1PPKPr/Rb1Q3R
Reprints: feenschach 153, p. 201, 10-12/2003
Input: Gerd Wilts, 2005-01-09
Last update: Silvio Baier, 2023-03-02 more...
64 - P1067433
Rustam Ubaidullajew
The Ural's Problemist 2003
3. Preis
P1067433
(16+15) C+
BP in 20,5
1. d3 c6 2. Ld2 Db6 3. La5 Db3 4. axb3 Sf6 5. Ta4 Sd5 6. Th4 Sb6 7. e4 Kd8 8. Ke2 Kc7 9. Kf3 Kd6 10. Kg3 Ke5 11. Dh5+ Ke6 12. Le2 Kd6 13. Dd5+ Kc7 14. Lh5 Kd8 15. Sf3 Ke8 16. Te1 Sc4 17. Te3 Se5 18. Se1 Sg4 19. Tf3 Sh6 20. Tf6 Sg8 21. f3
play all play one stop play next play all
Rundläufe von sK und sSg8, um ein Tempo zu verlieren.
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (sk), Tempo Loss (k9)
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.0 00:46:34 Minuten (hh:mm:ss). Keine Lösung: BP 19.5, BP 20.0.
FEN: rnb1kbnr/pp1ppppp/2p2R2/B2Q3B/4P2R/1P1P1PK1/1PP3PP/1N2N3
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 2005-01-09
Last update: A.Buchanan, 2023-03-02 more...
65 - P1068194
Gianni Donati
9926 Thema Danicum 121 01/2006
P1068194
(12+16) C+
BP in 24,0
1. d3 h5 2. Lf4 Sh6 3. Ld6 exd6 4. Sc3 Dg5 5. Db1 Dc1+ 6. Sd1 g5 7. a3 Lg7 8. Da2 Lxb2 9. Dc4 f6 10. Dg4 Kf7 11. Sf3 Te8 12. Sd2 Te3 13. Sb1 Th3 14. e3 Kg6 15. Le2 Sf7 16. Lf3 Sh8 17. Lc6 dxc6 18. 0-0 c5 19. Sdc3 Sc6 20. Dd1 Lg4 21. Kh1 Le2 22. f3 Lxf1 23. Se2 g4 24. Sg1 Kg5
play all play one stop play next play all
5zügiger Rundlauf der wD und Platzwechsel der wSS.
Reto: A lot faster with Stelvio 1.25, finished in about 1min. (2023-05-29)
more ...
comment
Keywords: Unique Proof Game, Interchange (SS), Pure Round Trip (D5), Impostor (SS)
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.11 01:03:51 Stunde. (hh:mm:ss) Keine Lösung: BP 23.0, BP 23.5.
FEN: r6n/ppp5/2np1p2/2p3kp/6p1/P2PPP1r/1bP3PP/RNqQ1bNK
Input: Gerd Wilts, 2005-12-21
Last update: A.Buchanan, 2023-04-27 more...
66 - P1068378
Gianni Donati
The Problemist Supplement 2001-2002
1. Preis, TT3
P1068378
(15+13) C+
BP in 20,0
1. e3 Sf6 2. Lb5 Sd5 3. Lc6 dxc6 4. Ke2 Dd6 5. Kd3 Dg3 6. hxg3 h6 7. Txh6 f5 8. Tf6 Th4 9. Se2 Tc4 10. Dh1 Tc3+ 11. bxc3 Sb6 12. La3 Sc4 13. Ld6 Sa5 14. Sa3 Sb3 15. Tb1 Sd4 16. Tb4 Se6 17. Tg4 Sd8 18. Tgg6 Sf7 19. g4 Sh6 20. Sg3 Sg8
play all play one stop play next play all
12-zügiger Rundlauf des sSg8, der früh nach d5 spielen muß, um Schachschutz zu geben.
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 01:13:11 Stunde.
Keine Lösung: BP 19.0, BP 19.5. (2023-03-01)
comment
Keywords: Unique Proof Game, Pure Round Trip (s12), Check Protection
Genre: Retro
Computer test: Stelvio 1.0
FEN: rnb1kbn1/ppp1p1p1/2pB1RR1/5p2/6P1/N1PKP1N1/P1PP1PP1/7Q
Reprints: (B) Quartz 28 07-09/2005
Input: Gerd Wilts, 2006-03-12
Last update: Silvio Baier, 2023-03-02 more...
67 - P1068380
Michel Caillaud
The Problemist Supplement 2001-2002
4. ehrende Erwähnung, TT3
P1068380
(15+13) C+
BP in 21,0
1. e4 a5 2. Ke2 Ta6 3. Kf3 Tc6 4. Kg4 Tc3 5. dxc3 Sc6 6. Le3 Sa7 7. Lc5 Sb5 8. Dd4 Sd6 9. Sd2 Sf5 10. Te1 d6 11. Te3 Le6 12. Th3 Lb3 13. Th6 gxh6 14. cxb3 Lg7 15. b4 Le5 16. Sb3 Lg3 17. hxg3 Sg7 18. Th5 Se6 19. Kh3 Sf8 20. Kh2 Sd7 21. Kh1 Sb8
play all play one stop play next play all
10-zügiger Rundlauf des sSb8 zwecks Schachschutz auf f5
Henrik Juel: Natch 3.1 produced little in an hour (2018-12-16)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:34:52 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.0, BP 20.5. Histogramm 44/0k. (2023-03-16)
comment
Keywords: Unique Proof Game, Pure Round Trip (s10), Check Protection
Genre: Retro
Computer test: Stelvio 1.11
FEN: 1n1qk1nr/1pp1pp1p/3p3p/p1B4R/1P1QP3/1NP3P1/PP3PP1/5BNK
Reprints: (D) Quartz 28 07-09/2005
Input: Gerd Wilts, 2006-03-12
Last update: Silvio Baier, 2023-03-20 more...
68 - P1068539
Eric Pichouron
5008 Phénix 146 12/2005
P1068539
(13+12) cooked
BP in 23,0
1. a3 e5 2. Ta2 Lb4 3. axb4 h5 4. Ta3 h4 5. Tg3 hxg3 6. hxg3 f5 7. Th3 f4 8. gxf4 a5 9. Ta3 Th1 10. Sf3 Txf1+ 11. Kxf1 Ta6 12. Kg1 Tg6 13. Kh2 d6 14. Dh1 Lg4 15. Kg3 Sf6 16. Dh7 Th6 17. Ta1 Th1 18. Sa3 Txc1 19. Kh4 Th1+ 20. Kg5 Th3 21. Th1 Tg3 22. Dh3 e4 23. Sh4 Lc8+
play all play one stop play next play all
Cook: 1. Sa3 a5 2. Sb5 e5 3. a3 Lb4 4. axb4 h5 5. Ta3 h4 6. Tg3 hxg3 7. hxg3 Ta6 8. Th7 Th6 9. Sf3 Th1 10. Th2 Txf1+ 11. Kxf1 Th3 12. Kg1 e4 13. Th1 f5 14. Sh4 f4 15. gxf4 Ta3 16. Kh2 Ta1 17. Kg3 Txc1 18. Kg4 Ta1 19. Dg1 Ta3 20. Dh2 Tb3 21. Sa3 Sf6+ 22. Kg5 d6 23. Dh3 Tg3+
Henrik Juel: Natch 3.1 did not find the solution in half an hour
Stopped at pos. 4961 (2018-12-22)
Moldenhauer: Computerprüfung: Cooked Stelvio 1.11 14:12:45 Stunden. (hh:mm:ss)
Keine Lösung: BP22.0, BP 22.5.
Beispiel: 1.Sa3 a5 2.Sb5 e5 3.a3 Lb4 4.axb4 h5 5.Ta3 h4 6.Tg3 hxg3 7.hxg3 Ta6
8.Th7 Th6 9.Sf3 Th1 10.Th2 Txf1+ 11.Kxf1 Th3 12.Kg1 e4 13.Th1 f5
14.Sh4 f4 15.gxf4 Ta3 16.Kh2 Ta1 17.Kg3 Txc1 18.Kg4 Ta1 19.Dg1 Ta3
20.Dh2 Tb3 21.Sa3 Sf6+ 22.Kg5 d6 23.Dh3 Tg3+ (2023-03-28)
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (T)
Genre: Retro
FEN: 1nbqk3/1pp3p1/3p1n2/p5K1/1P2pP1N/N5rQ/1PPPPPP1/7R
Input: Gerd Wilts, 2006-08-14
Last update: Silvio Baier, 2023-04-05 more...
69 - P1072354
Tomislav Petrovic
(H17) Problemkiste 165, p. 214, 06/2006
P1072354
(5+1) C+
h#2.5
1. ... c3+ 2. Kxa4 Lb5+ 3. Ka5 b4#
play all play one stop play next play all
Letzter Zug: Ka5-b4
A.Buchanan: A small group of similar problems forces some short Round Trip across past and forward play. The last move is not uniquely defined (it may be a capture) and is not mentioned in the stipulation. However the genre includes retro. This means that an aesthetic criterion (e.g. existence of Round Trip) can define whether a composition is subject to 50 move rule or dead position rule! (2021-10-31)
comment
Keywords: Pure Round Trip (k), Miniature, Rex solus
Genre: h#, Retro
Computer test: (Popeye WINDOWS-32Bit V4.05 (1708292 KB))
FEN: 8/8/2K5/8/PkB5/8/1PP5/8
Input: hpr, 2007-03-14
Last update: A.Buchanan, 2021-10-31 more...
70 - P1080589
Roberto Osorio
Jorge Joaquin Lois

(O5) StrateGems 10-12/2007
P1080589
(14+12) C+
BP in 15,0
1. f4 d5 2. f5 Le6 3. f6 Sd7 4. fxe7 f5 5. exf8=L Se7 6. a4 Sc8 7. Ld6 Dh4 8. Lg3 0-0 9. a5 Tf6 10. a6 Tg6 11. axb7 Tg5 12. b8=D g6 13. Dxa7 Kg7 14. Da2 Txa2 15. Lf2 Dxf2+
play all play one stop play next play all
Silvio Baier: 1.f4 d5 2.f5 Le6 3.f6 Sd7 4.fe f5 5.efL Se7 6.a4 Sc8 7.Ld6 Dh4 8.Lg3 0-0 9.a5 Tf6 10.a6 Tg6 11.ab Tg5 12.b8D g6 13.D:a7 Kg7 14.Da2 T:a2 15.Lf2 D:f2+
Rundläufe zweier Bauern mit anschließendem Schlag - damit auch Ceriani-Frolkin(DL); C+ (Euclide 0.95) (2010-02-16)
paul: QB Prentos theme (2020-11-29)
comment
Keywords: Unique Proof Game, Ceriani-Frolkin Theme (DL), Pure Round Trip (BB), Homebase (W)
Genre: Retro
Computer test: Euclide 0.95
FEN: 2n5/2pn2kp/4b1p1/3p1pr1/8/8/rPPPPqPP/RNBQKBNR
Input: Gerd Wilts, 2009-01-11
Last update: A.Buchanan, 2015-04-06 more...
71 - P1081751
Wolfgang Pauly
540 Magyar Sakkvilag 1918
P1081751
(7+8) C+
s#4
1. Tge2! d3 2. Te4 h4 3. Tg4 d2 4. Tg2 hxg2#
2. ... d2 3. Te2 h4 4. Tg2 hxg2#
1. ... h4 2. Te4 d3 3. Tg4 d2 4. Tg2 hxg2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-01-23)
comment
Keywords: Pure Round Trip (T), Round Trip (T), Alleinunterhalter
Genre: s#
FEN: 8/8/6p1/6Pp/1p1p4/pP5p/R5RP/3Qnk1K
Reprints: (55) Deutsches Wochenschach 22/06/1919
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2022-01-27 more...
72 - P1081761
Wolfgang Pauly
Deutsches Wochenschach 08/06/1919
P1081761
(9+5) C+
s#4
1. Dh5+ Lg5 2. Dxf7+ Lf6 3. Dxd5+ Le5 4. Df3+ Txf3#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-02-16)
comment
Keywords: Pure Round Trip (D)
Genre: s#
FEN: 6BN/5p2/8/R2p1k2/5b1P/5Q1K/1B2R1N1/5r2
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2022-02-16 more...
73 - P1081773
Manfred Zucker
4751 Mat (Belgrade) 01-02/1986
P1081773
(7+2) C+
s#5
1. Dh2? e4 2. Le1+ Ke3 3. ?

1. Dh1! e4 2. Le1+ Ke3 3. Dh2 exd3 4. Lf2+ Kd2 5. Dg1 dxe2#
play all play one stop play next play all
(MZ634)
.
SCHRECKE: C+, Gustav 4.1d, Brute Force
Das Satzspiel funktioniert aber nicht: 1. ... e4 2. Le1# (2020-08-27)
SCHRECKE: In seinem Buch gibt MZ kein Satzspiel an,
dafür aber den Fehlversuch 1.Dh2? e4 2.Le1+ Ke3 3.? - Weiß hat keinen Wartezug! (2020-08-27)
Felber, Volker: In seinen Originalunterlagen gibt MZ auch kein Satzspiel an. Deshalb habe ich diese Zeile aus der Lösung rausgenommen. (2021-03-25)
more ...
comment
Keywords: Pure Round Trip (D), Wartezug, Minimal, Dreiecksmarsch (D)
Genre: s#
FEN: 8/8/8/4p3/2R5/3P4/3kBBP1/5KQ1
Reprints: 277 Ausgewählte Schachaufgaben [Zucker] 1989
Input: HBae, 2009-02-06
Last update: Felber, Volker, 2021-03-25 more...
74 - P1081777
Hieronymus Fischer
2002 Deutsche Schachblätter 15/02/1921
P1081777
(5+8) C+
s#4
1. Db4! d4 2. Dxd4 b4 3. Dd2 b3 4. Db2 axb2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-11-24)
comment
Keywords: Pure Round Trip (D), Alleinunterhalter
Genre: s#
FEN: 8/8/8/1p1pN3/6Np/p5pk/pQ4r1/K4B2
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2021-11-29 more...
75 - P1081800
Leon Loewenton
2906 Deutsche Schachblätter 05/1924
P1081800
(10+5) C+
s#5
1. La5! Sb6 2. Lxb6 a5 3. Lb3 e6 4. Lc5 exf5 5. Lb4 axb4#
1. ... Sc7 2. Lxc7 a5 3. Lb3 e6 4. Ld6 exf5 5. Lb4 axb4#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-08-24)
comment
Keywords: Pure Round Trip (L)
Genre: s#
FEN: n7/4p3/p3B3/4NP2/PB3P2/K7/PR1bk3/6Q1
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2021-08-28 more...
76 - P1081806
Zivko Janevski
Suomen Shakki 1988
P1081806
(11+10)
s#14
1. Sc4! d2 2. Sb6+ Kc6 3. Sa8+ Kd5 4. Sc7+ Ke5 5. Se8+ Kd5 6. Td6+ Ke5 7. Txf6+ Kd5 8. Td6+ Ke5 9. Tg6+ Kd5 10. Sf6+ Kc6 11. Se4+ Kd5 12. c4+ Kxc4 13. Sxd2+ Kd5 14. Td4+ cxd4#

1. ... f5? 2. Sb6+ Kc6 3. Sa8+ Kd5 4. Sc7+ Ke5 5. Se8+ Kd5 6. Td6+ Ke5 7. Tg6+ Kd5 8. Sf6+ Kc6 9. Se4+ Kd5 10. c4+ Kxc4 11. Sd2+ Kd5 12. Td4+ cxd4#
play all play one stop play next play all
Nach 1. ... f5? geht es um zwei Züge kürzer.

Weißer Springer-Rundlauf. FA=8
HBae: Wirklich cook? Wieso geht 5.Td6-g6+, auf f6 steht doch ein sB. (2021-08-31)
SCHRECKE: Nach 1.Sc4! d2 2.Sb6+ Kc6 3.Sa8+ Kd5 geht nur 4.Sc7+ und nicht 4.Td6+?
Der "Cook" 4. Td6+ geht nur nach dem kurzzügigen 1. ... f5? und das ist uninteressant!
Die Aufgabe scheint also korrekt zu sein. (2021-08-31)
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comment
Keywords: Pure Round Trip (S)
Genre: s#
FEN: 1BB5/8/R4p1P/2pk2p1/P5R1/1pPpKp2/1PbN1Pp1/4n3
Reprints: F81 FIDE Album 1986-1988 , p. 440,
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2023-10-29 more...
77 - P1081809
Wolfgang Pauly
(93) Deutsches Wochenschach , p. 159, 22/06/1919
P1081809
(9+6) C+
s#4
1. Sh5! Lxg7 2. Sxg7 h5 3. Sf5 h4 4. Sg3 hxg3#
1. ... Lxf4+ 2. Shxf4 h5 3. Se2 h4 4. Sg3 hxg3#
1. ... Lf6 2. Shxf6 h5 3. Se4 h4 4. Sg3 hxg3#
play all play one stop play next play all
Sally: Der wSg3 unternimmt drei Ausflüge in die Umgebung, welche auf seinem ursprünglichen Standpunkt enden.
S. 262; Nr.336 Rösselsprünge Siers ( Murkisch-Kuhn 2002). (2012-04-09)
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-02-03)
comment
Keywords: Pure Round Trip (S)
Genre: s#
FEN: 8/6P1/3p2Pp/3Nb3/3p1P2/3B1kNP/6pK/6B1
Reprints: 1 Rösselsprünge im Schachproblem , p. 3, 1948
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2022-02-06 more...
78 - P1081812
Wolfgang Pauly
15557 Deutsches Wochenschach 22/08/1920
P1081812
(9+3) C+
s#6
1. Sh5 Kd2 2. Sf6 Kc2 3. Sd5 Kd2 4. Se3 Ke2 5. Sf1 Kf2 6. Sg3 hxg3#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-04)
comment
Keywords: Pure Round Trip (S)
Genre: s#
FEN: 8/8/8/5Pp1/6Pp/1R3PNP/2k4K/1R5B
Reprints: 15900 Deutsches Wochenschach 16/10/1921
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2020-12-09 more...
79 - P1081827
Eduard Birgfeld
1834 Sammler 22/06/1918
P1081827
(7+8) C+
s#4
1. Tb6! f3 2. Txf6 f2 3. Txf2+ f6 4. Tb2 axb2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-11-24)
comment
Keywords: Pure Round Trip (T)
Genre: s#
FEN: 7B/5p2/5p2/2pp4/R1nk1pN1/p7/NR6/KB6
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2021-11-29 more...
80 - P1081829
Jan A. Rusek
2531 Springaren 05/1954
3. Lob
P1081829
(9+5) C+
s#5*
1. Td3! Kb4 2. Td5 Kc4 3. Tc5+ Kb4 4. Tb5+ Kc4 5. Tbb3 b5#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-10-28)
comment
Keywords: Pure Round Trip (T), Tempo Duel
Genre: s#
FEN: 8/p1PPP3/rp1K4/p3B3/P1k5/RR6/1P6/8
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2021-10-28 more...
81 - P1082149
Wolfgang Pauly
123c Fata Morgana , p. 281, 1922
P1082149
(6+7) C+
s#4*
* 1. ... Sf2#
1. Dd7! Ke5 2. Dc6 Kd4 3. Dc5+ Ke4 4. Dd6 Sf2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-02-16)
comment
Keywords: Pure Round Trip (Dk), Mutate
Genre: s#
FEN: 8/8/3Q4/1p4p1/1P2k1Pp/6pK/4p1N1/4N2n
Reprints: 823 Wolfgang Pauly. Challenge of a Legacy 2001
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2022-02-16 more...
82 - P1082152
Ottó Titusz Bláthy
Deutsche Schachzeitung , p. 242, 1913
P1082152
(11+12) C+
s#4*
* 1. ... Txg8#
1. Sg5! Kg2 2. Sf3+ Kh3 3. Sg1+ Kh2 4. Sh3 Txg8#
2. ... Kxf1 3. Sxh4
1. ... h3 2. Sxh3
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-03-24)
comment
Keywords: Pure Round Trip (S)
Genre: s#
FEN: K5Rr/Pp5p/bP5P/1p3p2/1P2pP1p/4Q2N/3p1p1k/3BbR2
Reprints: 213 Encyclopedia of Chess Problems , p. 65, 2012
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2022-03-25 more...
83 - P1082153
Alfred Olaf Karlström
Dansk Skakproblem Klub 1947
2. Preis
Dansk Skakproblem Klub
P1082153
(10+8) C+
s#4*
* 1. ... bxc6#
1. Sd4! Kg7 2. Se6+ Kg8 3. Sd8+ Kf8 4. Sc6 bxc6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-03-03)
comment
Keywords: Mutate, Pure Round Trip (S)
Genre: s#
FEN: Rn3k2/1p1P4/1pNP2Pp/bK5P/PpB5/1p6/1B6/8
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2022-03-10 more...
84 - P1083197
Pavlos N. Moutecidis
8810 FEENSCHACH 1968
ehrende Erwähnung
P1083197
(6+3) C+
s#13*
* 1. ... Dxd8#
1. Sg4! Kg8 2. Da2+ Kf8! 3. Df2+ Kg8 4. Df7+ Kh8 5. Dh5+ Kg8 6. Sf6+ Kf8 7. Sh7+ Kg8 8. Dd5+ Kh8 9. Dd4+ Kg8 10. Sf6+ Kh8! 11. Sg4+ Kg8 12. Sh6+ Kf8 13. Da7 Dxd8#
2. ... Kh8? 3. Da1+ Kg8 4. Sh6+ Kf8 5. Da7 Dxd8#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (2022-03-12)
comment
Keywords: Pure Round Trip (D)
Genre: s#
FEN: 1K1Rqk2/QR6/7N/8/4p3/4P3/8/8
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2022-03-16 more...
85 - P1083495
Henrik Juel
Kevin James Begley

The Problemist 2006
P1083495
(4+9) cooked
ser-=20
Platzwechselcirce
1. Se5 2. Sf7 3. Sh8 4. Sxg6[+sBh8] 5. Sf8 6. Sxe6[+sBf8] 7. Sd8 8. Sxc6[+sBd8] 9. Sb8 10. Sxa6[+sBb8] 11. Sc7 12. Sa8 13. Sxb6[+sBa8] 14. Sc8 15. Sxd6[+sBc8] 16. Se8 17. Sxf6[+sBe8] 18. Sg8 19. Sxh6[+sBg8] 20. Sg4 =
play all play one stop play next play all
Cook: 1.Se3 2.g4 3.g5 4.gxf6[+bPg5] 5.f7 6.f8=B!! 7.Kf2 8.Sg4 9.S:h6[+bPg4] 10.B:d6[+bPf8] 11.Bg3 12.Sf7 13.Sd8 14.S:e6[+bPd8] 14.Sc5 15.S:a6[+bPc5] 16.Sc7 17.Sa8 18.S:b6[+bPa8] 19.Sc4 =
Pawns reborn on their 1st rank have no legal move in this condition (unlike Circe-Parrain).
Henrik Juel: I am not a co-author of this problem, which appeared in The Problemist under Kevin's name only
In the solution section there was no mention of a cook (2021-05-17)
Henrik Juel: Kevin has pointed out a memory lapse on my part
He found a cooked problem by me from 1993 with the same idea and suggested that his 2006 problem should include me as co-author, which I accepted (2022-03-31)
Anton Baumann: "cooked" ist zu entfernen! Was soll denn hier cooked sein? (2022-04-06)
Henrik Juel: I believe that Kevin has found a cook (2022-04-06)
Kevin Begley: Norbert Geissler found this impressive cook (which Popeye does not find).
We have long known of a simple correction (I believe it's fully sound starting with wSf7, as ser-=18, but the circuit would be lost). I had hoped to reveal details of the cook (and the solver) in the publication of a correction, but time slipped away, then I stopped composing for some years. Truth be told, prospects to fully restore the intent were never likely. (2022-04-10)
more ...
comment
Keywords: Circe (Platzwechsel-), Pure Round Trip, Ornament, Seriesmover
Genre: Fairies
FEN: 8/8/pppppppp/8/6N1/5KPk/8/6P1
Input: Kevin Begley, 2009-03-04
Last update: Kevin Begley, 2022-04-10 more...
86 - P1086718
Frank Müller
3821 Buletin Problemistic 07-12/2001
Informalturnier 2000/01
1. ehrende Erwähnung
P1086718
(2+5)
#16
1. Dd5 d3 2. Da8+ Ta3 3. Dg8+ d5 4. Dxd5+ Tb3 5. Da8+ Ta3 6. Dg8+ Tb3 7. Dd5 d6 8. Da8+ Ta3 9. Dg8+ d5 10. Dxd5+ Tb3 11. Da8+ Ta3 12. Dg8+ Tb3 13. Dd5 d2+ 14. Dxd2+ Ka1! 15. Da5+ Ta3 16. Dxa3#
Tempoverlustmanöver
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-12-14)
comment
Keywords: Pure Round Trip (D), Minimal
Genre: n#
FEN: 8/3p1Q2/3p4/8/3p4/1r6/k7/2K5
Input: Frank Müller, 2009-06-16
Last update: Frank Müller, 2009-06-16 more...
87 - P1097410
Tadeusz Horak
326 Revista de Sah 15/06/1926
P1097410
(10+10) cooked
s#8
1. Tc5! b6 2. Dxg4+ Lf4 3. Dxe2+ Le3 4. Dxc4+ Ld4 5. De6+ Le5 6. Td5 g4 7. Tgd3 g3 8. Sf3 g2#
play all play one stop play next play all
Cook: NL: 1. Td8! b6 2. Tgd3 cxd3 3. Txd3 g3 4. Sxg3+ Kf4 5. Sxe2+ Ke4 6. c4 g4 7. Txb3 g3 8. Sc2 g2#
2. ... g3 3. Sxg3+ Kf4 4. Sxe2+ Ke4 5. Tg3 g4 6. Sd3 cxd3 7. Tgxd3 g3 8. c4 g2#
1. Td7!, 1. Td6!, 1. Td2!
Marcin Banaszek: Eine Korrektur (+sBh6) rettet die Aufgabe, Gustav 4.1c C+ (2023-12-03)
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comment
Keywords: Pure Round Trip (Dl)
Genre: s#
FEN: 8/1p5B/4Q1r1/1P1Rb1pN/2p1k1p1/1pP3R1/1P2p2p/4N2K
Reprints: 21 Szachy 04/1969
208 Polskie samomaty 1991
Input: Frank Müller, 2009-12-31
Last update: Marcin Banaszek, 2023-12-03 more...
88 - P1097486
Ivan D. Borisenko
Vitaly I. Shevchenko

2372 Shakhmatnaya Poeziya 05-08/2007
P1097486
(8+5) C+
s#7
1. Sh5+ Ke4 2. Dg2+ Df3 3. Dxc2+ Dd3 4. Dxc6+ Dd5 5. Dxg6+ Df5 6. Dc6+ Dd5 7. b8=L Dxc6#
play all play one stop play next play all
more ...
comment
Keywords: Pure Round Trip (D)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: K7/BP3NN1/2n2qn1/8/5kB1/7Q/2b5/3R4
Input: Frank Müller, 2010-01-01
Last update: James Malcom, 2020-09-30 more...
89 - P1104376
Johann Hollik
Franz Felber

5571 Schach-Report 10/1990
P1104376
(11+4) cooked
s#6
b) sLe5
a) 1. b4 Kd5? 2. g8=L+ Kd4 3. Dc8 Dxf6#
1. b4 Dxf6 2. Sc6+ Dxc6 3. c3+ Dxc3 4. Dxb6+ Dc5 5. Df6+ De5 6. g8=L Dxf6#
b) 1. Dc3+ Kd5 2. g8=D+ Kd6 3. Dd8+ Ke6 4. Dcc8+ Kf7 5. Le8+ Kf8 6. Lg7+ Lxg7#
play all play one stop play next play all
a) ist die Originalaufgabe von JH, b) wurde von FF gefunden und in der Lösungsbesprechung 03/1991, Seite 42, angefügt.
Cook: b) Dual 4. Dh3+ Lf5 5. Dd7+ Kxf6 6. Df7+ Kxf7#
4. ... Kf7 5. Le8+ Kf8 6. Lg7+ Lxg7#
SCHRECKE: b) hat einen Dual:
4.Dh3+ Lf5 5.Dd7+ K:f6 6.Df7+ K:f7#
4. ... Kf7 5.Le8+ Kf8 6.Lg7+ L:g7# (2021-03-23)
comment
Keywords: Forsberg Twins, Pure Round Trip (d)
Genre: s#
FEN: 1N5K/2Q3P1/1p3B2/1B2q2R/3kb2R/1P6/2PP4/8
Input: Frank Müller, 2010-04-29
Last update: Rainer Staudte, 2023-07-24 more...
90 - P1104772
Hieronymus Fischer
2393 Deutsche Schachblätter 15/10/1922
P1104772
(8+2)
s#3
1. Tf8+ Dxf8 2. Da3+ Dxa3+ 3. Lf3+ Dxf3#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.89 (2023-10-19)
comment
Keywords: Pure Round Trip (d)
Genre: s#
FEN: k7/8/8/5R2/7P/5qQK/7P/1R1B2B1
Input: Frank Müller, 2010-05-02
Last update: Frank Müller, 2010-05-02 more...
91 - P1105130
Leon Loewenton
2909 Deutsche Schachblätter 05/1924
P1105130
(10+11) C+
s#13
1. De8+ Kc7 2. Dc8+ Kb6 3. Db7+ Ka5 4. b4+ Kxb4 5. Dxb5+ Kc3 6. Db3+ Kd2 7. Dc2+ Kxe3 8. Lf2+ Kf4 9. De4+ Kg5 10. Dxg4+ Kf6 11. Dxg6+ Ke7 12. Dxf7+ Kd8,Kxd6 13. Lxa4 Th1#
play all play one stop play next play all
Frank Richter: Korrekturfassung der P1104959 (2010-06-09)
SCHRECKE: C+, Gustav 4.2b, Brute Force (2022-12-05)
more ...
comment
Keywords: Pure Round Trip (k)
Genre: s#
FEN: 3k4/5n2/2QN2pp/1p5P/n2P2r1/p3P1Bp/PP4pr/3B2K1
Input: Frank Müller, 2010-05-12
Last update: Marcin Banaszek, 2022-12-08 more...
92 - P1106668
Gianni Donati
Olli Heimo
Joose Norri

P0267 StrateGems 50 04-06/2010
3. Preis
P1106668
(13+13) C+
BP in 23,0
1. a4 a5 2. Ta3 Ta6 3. Tf3 Tg6 4. Tf6 gxf6 5. b4 Lh6 6. b5 Le3 7. f4 La7 8. b6 Sa6 9. bxa7 b6 10. Kf2 Lb7 11. Ke3 Lf3 12. gxf3 Da8 13. Lh3 De4+ 14. fxe4 Sh6 15. Sf3 Tgg8 16. Dg1 Tf8 17. Dg4 Sg8 18. De6 fxe6 19. Tg1 Kf7 20. Tg5 Ta8 21. Td5 exd5 22. Le6+ Ke8 23. f5 Sb8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did not find the solution in half an hour
Stopped at pos. 12 (2018-12-29)
more ...
comment
Keywords: Unique Proof Game, Pure Round Trip (t), Switchback (kss)
Genre: Retro
Computer test: Stelvio 1.11
FEN: rn2k1nr/P1ppp2p/1p2Bp2/p2p1P2/P3P3/4KN2/2PPP2P/1NB5
Input: Gerd Wilts, 2010-06-03
Last update: A.Buchanan, 2023-07-26 more...
93 - P1106999
Eduard Birgfeld
1912 Deutsche Schachblätter 25/08/1918
P1106999
(6+8) cooked
s#4*
* 1. ... e5 2. d5,dxe5 axb2#
1. Lc1 e5 2. Lxe3 exd4 3. Lxd4+ e3 4. Lb2 axb2#
play all play one stop play next play all
SCHRECKE: 2 Nebenlösungen: 1.T:h4, 1.Dc8
z.B.: 1.Dc8 Ka4 2.Da6+ Kb3 3.Dc6 e5 4.d5,d:e5 a:b2#
1. ... e5 2.d5,d:e5 Ka4 3.Da6+ Kb3 4.Dc6 a:b2# (2021-11-24)
comment
Keywords: Pure Round Trip (L)
Genre: s#
FEN: 8/8/2Q1p3/8/1p1Pp2p/pk2p2R/pB5P/K7
Input: Frank Müller, 2010-06-05
Last update: Marcin Banaszek, 2021-11-29 more...
94 - P1110487
A. Ziem
Gottfried Schwendy

13 Deutsche Schachblätter 04/1948
P1110487
(9+6) C+
s#6
b) #6
a) 1. Sd2+ Kd4 2. Sb3+ Kc4 3. Sa5+ Kd4 4. Sxc6+ Kc4 5. Se5+ Kd4 6. Sf3+ Sxf3#
b) 1. Sd2+ Kd4 2. Sb3+ Kc4 3. Sa5+ Kd4 4. Sxc6+ Kc4 5. Sa5+ Kd4 6. Sb3#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force (2020-12-04)
comment
Keywords: Stipulation change, Pure Round Trip (S)
Genre: n#, s#
FEN: 1b6/2R4B/2p5/1R4r1/P1k5/5N2/1P3P1K/5bnN
Input: Frank Müller, 2010-07-14
Last update: Marcin Banaszek, 2020-12-09 more...
95 - P1112542
Bo Lindgren
5716v feenschach 93 11-12/1989
P1112542
(7+6) cooked
hs#7
1. Tg5+ Kh2 2. Tg2+ Kh3 3. Th2+ Kg4 4. Th5 Te6+ 5. Kd5 Ta6+ 6. Ke4 Ta2 7. Le2+ Txe2#
play all play one stop play next play all
Korrektur fs-99, 01-08/1991, S.49
Cook: NL,(G.Smits):
1. Lg2 Lf7 2. f4 Le8+ 3. Kd5 Txg2 4. Tg5 Kh2 5. Ke4 Te2+ 6. Kf3 Kh3 7. Th5+ Lxh5#
paul: Cook (G. Smits): 1.Bg2 Bf7 2.f4 Le8+ 3.Kd5 Rxg2 4.Rg5 Kh2 5.Ke4 Re2+ 6.Kf3 Kh3 7.Rh5+ Bxh5# (2018-02-05)
Vaclav Kotesovec: FIDE Album version is also cooked, see P1393258. (2021-08-28)
comment
Keywords: Pure Round Trip (Tt)
Genre: Fairies
FEN: 6b1/7p/2K2p2/2p2P1R/8/1P1P4/4rP2/5Bk1
Reprints: feenschach 99, p. 49, 01-08/1991
Input: HBae, 2010-08-09
Last update: Olaf Jenkner, 2019-06-09 more...
96 - P1113409
Karl Pohlheim
1724 Die Schwalbe 09-10/1964
P1113409
(4+2) cooked
s#7
Längstzüger
1. Kc3 Ta8 2. Lh2+ Ka7 3. Kb4 Th8 4. Lg1+ Kb8 5. Ka5 Th1 6. Lh2+ Ka7 7. b4 Ta1#
play all play one stop play next play all
Cook: 1. Lh2+ Ka7 2. Kc3 Th1 3. Lg1+ Kb8 4. Kb4 Th8 5. Ka5 Th1 6. Lh2+ Ka7 7. b4 Ta1#
Anton Baumann: Korrektur Autor in 'Die Schwalbe' 06/1965 S. 80: wKd2 nach c3, wLg1 nach b6
Lösung: 1.Lg1 Ta8 2.Lh2+ Kh7 ...
aber NL: 1.Lc5 Ta8 2.Ld6+ Ka7 3.Kb4 Th8 4.Ka5 Th1,Th8 5.b4 Th8 6.Lf8 Th1 7.Lh6 Ta1#
1. ... Th1 2.Lg1 Th8 3.Kb4 Th1 4.Ka5 Th8 5.b3 Th1 6.Lh2+ Ka7 7.b4 Ta1#
Besser ist in nebenstehendem Diagramm: sTa1 nach a2: 1.Kc3 Ta8 2.Lh2+ ...
Computerprüfung mit sTa2: C+ Alybadix (2022-11-16)
comment
Keywords: Maximummer, Pure Round Trip (t)
Genre: Fairies
FEN: 1k6/8/8/1P6/8/8/1P1K4/r5B1
Input: Frank Müller, 2010-08-22
Last update: Frank Müller, 2010-08-22 more...
97 - P1114202
Zoltan Laborczi
György Bakcsi

2402 Best Problems 01/2010
Informalturnier 2010/11
2. ehrende Erwähnung
P1114202
(5+7)
s#16
Ultraschachzwang
1. Kb2 d1=S+ 2. Ka2 Sc3+ 3. Kb3 a4+ 4. Kxc3 exd4+ 5. Kxd4 c5+ 6. Ke4 d5+ 7. Kd3 dxc4+ 8. Kxc4 b5 9. Kd3 c4+ 10. Kd2 c3+ 11. Kd1 c2+ 12. Ke2 c1=S+ 13. Kd2 Sb3+ 14. Kc3 b4+ 15. Kb2 a3+ 16. Ka2 Sc1#
Ultraschachzwang = Schachzwang (?)
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2022-05-06)
Henrik Juel: The Märchenschachlexicon is not absolutely clear, but it seems that
Schachzwang: Black must check, if he can
Ultraschachzwang: Black must check
so these conditions are different (2022-05-06)
comment
Keywords: Pure Round Trip (K), Black check, Ultraschachzwang
Genre: Fairies
FEN: 4k3/1ppp4/8/p3p3/2PP4/8/K2p4/BN6
Input: Frank Müller, 2010-09-01
Last update: Frank Müller, 2012-06-27 more...
98 - P1114208
Dieter Werner
idee & form 2002
Peter Jäger 80 JT
2. Preis
P1114208
(8+5)
#11
1. Le7+ Kc7 2. Tb4 (droht 3. Tb7#) Tgb8! 3. Ld6+ Kd8 4. Te4 (droht 5. Te8#) Tb2+ 5. Kh3 Th2+ 6. Kg4 Th8 7. Le7+ Kc7 8. Tb4 Thb8 9. Ld6+ Kd8 10. Te4 nebst 11. Te8#
play all play one stop play next play all
Die kritische Lenkung des sT kann durch eine vollständige antiperikritische Führung unter Schach wieder rückgängig gemacht werden. Danach ist diesselbe kritische Lenkung wegen Wegführung des wK erfolgreich.
Pawel Stawarz: This problem has missing black pawn at g6. Correct problem has been already added by Felber Volker, please check P1269789. (2015-04-26)
Anton Baumann: mit sBg6: C+ Gustav 4.2a (2023-12-11)
more ...
comment
Keywords: Pure Round Trip (t)
Genre: n#
FEN: r2k2r1/3B4/2PB4/2P5/4RP2/6P1/p5K1/6b1
Reprints: 96 mpk-Blätter 02/2005
C108 FIDE Album 2001-2003 2011
Input: Frank Müller, 2010-09-01
Last update: Frank Müller, 2011-12-04 more...
99 - P1117900
Ralf Krätschmer
4277 Stuttgarter Zeitung 08/06/2002
P1117900
(4+3)
#4
1. La6 Sc8 2. Lb7+ Ka7 3. Lc6+ Ka6 4. Lb5#
play all play one stop play next play all
RLL
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-01-25)
comment
Keywords: Miniature Collection (0222229), Pure Round Trip (L)
Genre: n#
FEN: k7/n1RN4/8/1B6/K7/4n3/8/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2013-02-25 more...
100 - P1132322
Hans Franz Lange
153 Das große Kreuzworträtselmagazin 10/1937
P1132322
(3+4)
#5*
1. Dh5 Ke1! 2. Df5 Kd1 3. Dg4 Kc1 4. Dg1+ e1=D+ 5. Dxe1#
play all play one stop play next play all
1. .. Kc1? 2. Dh1+
F1DK
SBD: Satz 1. .. Kc1 (1. .. Ke1 2. Dg1#) 2. Dg1+ e1=D+ 3. Dxe1# (2013-02-23)
SCHRECKE: C+, Gustav 4.2b, Brute Force (2022-10-09)
comment
Keywords: Miniature Collection (0334789), Pure Round Trip
Genre: n#
FEN: 8/8/8/8/4p1Q1/2K1p3/2P1p3/3k4
Input: Zuncke/Bruder, 2010-09-11
Last update: SBD, 2013-02-24 more...
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