Die Schwalbe

183 problem(s) found in 4008 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT K='Doppelveröffentlichung' AND K='Platzwechsel'] [download as LaTeX]

1 - P0000111
Andrey Frolkin
Leonid Lyubashevsky

6330 Die Schwalbe 112 08/1988
4. ehrende Erwähnung
P0000111
(28+0)
Färbe die Steine!
BP in 11.0
1. h4 f5 2. Th3 Kf7 3. Tb3 De8 4. Tb6 axb6 5. g3 Ta3 6. Lg2 Tc3 7. Lc6 dxc6 8. dxc3 Le6 9. Dd8 Lb3 10. axb3 Dd7 11. Ta8 Dd1+
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1
The colored position is 'natural' except for wTa8, wDd8, and sDd1 (2018-12-07)
paul: The problem is Jacobi+ with this code: stipulation PG 11 forsyth RS1Q1BSR/1PP1PKPP/1PP5/5P2/7P/1PP3P1/1PP1PP2/1SBQK1S1 ColorThePieces (2021-07-06)
comment
Keywords: Unique Proof Game, Colouring problem, Interchange
Genre: Retro
FEN: RN1Q1BNR/1PP1PKPP/1PP5/5P2/7P/1PP3P1/1PP1PP2/1NBQK1N1
Input: Gerd Wilts, 1995-06-03
Last update: James Malcom, 2022-02-08 more...
2 - P0000574
Thomas Volet
The Problemist 11/1980
P0000574
(13+14)
Woher kamen die sTTa8 und h8?
Henrik Juel: The rooks have switched place. Following -1... Rb8:S -2.Sb6, bRb8 retracts further to g8, bBd8 retracts to f8 and bPe6 to e7, to allow wK to exit via e6; retract bRh8 to h6 and h7xRg6 etc. wPg4 cannot retract until orig. wRh1 is home. This is the only Volet retro with a K in check, composed in Tom's youth, before he saw the light! (2003-11-25)
Thomas Volet: The exception in this case to the otherwise observed constraint of not having a check in the diagram or stipulation as to who is on the move relates to a collegial colloquy at the time with with the composer J.G. Mauldon, who was active in this task. (2022-03-24)
A.Buchanan: Terrific composition! Often in a Type C composition, one might retract the check to give Type B. But the thematic Ta8 here could not exist without a check in diagram. There are different areas of design space are accessible depending upon level of self-imposed constraints. Some retro composers like Baibakov systematically explore Types B&C as well as Type A. I don't see this as any kind of defect.
I particularly like that the lock on h-file only allows one sT to squeeze itself out. (2022-03-24)
comment
Keywords: Impostor (tt), Which are original men? (tt), Interchange (tt)
Genre: Retro
FEN: r1bbn2r/Kpp3p1/3pppp1/7B/5kP1/1P6/pPPPPP1P/NQB5
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-03-24 more...
3 - P0001572
Andrey Frolkin
442 Europe Echecs 313 01/1985
P0001572
(15+13) C+
BP in 16,5
1. Sc3 Sf6 2. Sd5 Se4 3. Sxe7 Sg5 4. Sg6 Lb4 5. e3 d6 6. Se2 Kd7 7. Sc3 Kc6 8. Sb1 Sd7 9. Lb5+ Kxb5 10. Sxh8 c6 11. Sxf7 Da5 12. Se5 Sb6 13. Sf3 Ld7 14. Sg1 Te8 15. f3 Te4 16. Kf2 Le8 17. Kg3
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Interchange (SS)
Genre: Retro
Computer test: Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong Ergänzung: Stelvio 1.2. Keine Lösung BP 15.5, BP 16.0.
FEN: 4b3/pp4pp/1npp4/qk4n1/1b2r3/4PPK1/PPPP2PP/RNBQ2NR
Reprints: 67 Shortest Proof Games 11/1991
(2) Quartz 21 07-09/2002
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-05-21 more...
4 - P0001640
A. d'Ales
509 Europe Echecs 367/368 07/1989
P0001640
(15+16) cooked
KBP in 25,0
NL: 1. b4 a5 2. h4 d6 3. Th3 g6 4. Te3 Lg7 5. g3 Lc3 6. Lh3 Ta6 7. Kf1 Tc6 8. Kg2 b6 9. Kf3 Dd7 10. Ke4 Tc4+ 11. Kd5 Dxh3 12. Sf3 Lg4 13. Sd4 Sd7 14. Sb3 Td4+ 15. Kc6 Se5+ 16. Kb7 Kd7 17. Dh1 Ke6 18. Kc8 Lh5 19. Da8 Kf5 20. g4+ Kf4 21. f3 Kg3 22. Kd8 Kf2 23. Ke8 Ke1
AL wurde nie veröffentlicht.
play all play one stop play next play all
Moldenhauer: Computerprüfung: Cooked Stelvio 1.6 01:00:21 Stunde. (hh:mm:ss)
1.Sf3 a5 2.b4 g6 3.h4 Lg7 4.Th3 Lc3 5.Sd4 Ta6 6.Te3 Tc6 7.g3 Tc4 8.Lh3 d6 9.Kf1 Dd7
10.Kg2 Dxh3+ 11.Kf3 Lg4+ 12.Ke4 Sd7 13.Kd5 b6 14.Sb3 Td4+ 15.Kc6 Se5+ 16.Kb7 Kd7
17.Dh1 Ke6 18.Kc8 Kf5 19.Da8 Lh5 20.g4+ Kf4 21.f3 Kg3 22.Kd8 Kf2 23.Ke8 Ke1
Keine Lösung: BP 22.5.
Wenn die Forderung KBP 25.0 richtig ist dann Cooked. (2023-09-28)
comment
Keywords: Interchange, Non-Unique Proof Game, Non-Unique Proof Game
Genre: Retro
FEN: Q3K1nr/2p1pp1p/1p1p2p1/p3n2b/1P1r2PP/1Nb1RP1q/P1PPP3/RNB1k3
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2014-05-21 more...
5 - P0004192
Tomislav Petrovic
(IX) Problem 37-40 09/1956
P0004192
(14+8) C+
h#2*
1. ... dxc6ep 2. dxc3 Lxb6#
1. dxe3 Sd4 2. e2 Sc6#
play all play one stop play next play all
more ...
comment
Keywords: En passant as key, Interchange (Sb)
Genre: h#, Retro
Computer test: HC+ Popeye v4.87 & trivial retro-logic
FEN: B5Rr/k4pPp/1p3P1p/1KpPP2N/2Pp4/2PPB3/2P1N3/8
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-10-23 more...
6 - P0006492
Thierry Le Gleuher
601v Europe Echecs 438 10/1995
P0006492
(16+13) C+
BP in 21,0
1. h4 a5 2. h5 Ta6 3. h6 Tb6 4. hxg7 Tb3 5. Th6 b5 6. Ta6 h5 7. axb3 h4 8. Ta4 h3 9. Th4 h2 10. c4 h1=T 11. Dc2 Th3 12. Dg6 Tc3 13. Th1 Thh3 14. Db6 Thf3 15. exf3 a4 16. Ld3 a3 17. Le4 a2 18. d3 a1=T 19. Le3 Ta4 20. Ld4 Tb4 21. Ta1 Ta4
play all play one stop play next play all
White Rooks are permuted. Black Rooks are promotees. A very nice maneuver.
Moldenhauer: Computerprüfung: C+ Stevio 1.11 00:49:45 Minuten.(hh:mm:ss)
Keine Lösung: BP20.0, BP 20.5. (2023-03-16)
Henrik Juel: Hello Moldenhauer
Your tests with Stelvio are much appreciated
Did you notice any improvement by version 1.11 over version 1.0? (2023-03-16)
Moldenhauer: Hallo Henrik Juel
Danke! Seit der neuen Version Stelvio 1.11 hat sich die Anzahl der Strategien reduziert.
Beispiel: P1000406 von 6775 auf 4994, was natürlich das Tempo erhöht. Habe ich zufällig bemerkt.
Dieses Beispiel habe ich auch gespeichert. Herr Reto Aschwanden schrieb glaube ich auch darüber.
Bei mir laufen immer mehrere Stelvios gleichzeitig. Vielleicht ist mein Rechner deshalb
gegenüber anderen langsamer. AMD Ryzen 3950X 16 Kerne 3 Jahre alt. (2023-03-16)
Henrik Juel: Thanks, Moldenhauer (2023-03-20)
comment
Keywords: Unique Proof Game, Interchange (TT), Promotion
Genre: Retro
Computer test: Stelvio 1.11
FEN: 1nbqkbn1/2ppppP1/1Q6/1p6/r1PBB3/1PrP1P2/1P3PP1/RN2K1NR
Input: Gerd Wilts, 1996-06-16
Last update: Silvio Baier, 2023-03-20 more...
7 - P0008204
Unto Heinonen
3230 U.S. Problem Bulletin 99/100 01-04/1995
1. Preis
P0008204
(13+15) C+
BP in 27,0
1. g4 a5 2. g5 a4 3. g6 a3 4. gxh7 axb2 5. a4 bxa1=T 6. Lb2 g5 7. Lg7 b5 8. Lh6 Lg7 9. a5 Lc3 10. a6 Sf6 11. a7 Tg8 12. h8=S Lb7 13. Sg6 Lxh1 14. Sf4 Sc6 15. Sh5 Db8 16. f4 Db6 17. Sf3 0-0-0 18. a8=L Se5 19. Le4 Ta8 20. Lh7 La5 21. Sc3 g4 22. Da1 g3 23. Sd1 g2 24. Dd4 Tg3 25. Dg1 Th8 26. Sd4 Ta3 27. c3 Ta1
play all play one stop play next play all
D. Meinking: 1st Prize, USPB 1995-1997 (2002-07-06)
paul: The report of the judge G. Lauinger in StrateGems 19/2002 (2021-10-29)
comment
Keywords: Unique Proof Game, Interchange (ttt), Castling, Promotion
Genre: Retro
Computer test: C+ by Stelvio beta from Reto Aschwanden
FEN: r1k4r/2pppp1B/1q3n1B/bp2n2N/3N1P2/2P5/3PP1pP/r2NKBQb
Reprints: feenschach 153 10-12/2003
Input: Gerd Wilts, 1996-09-11
Last update: A.Buchanan, 2022-11-27 more...
8 - P0008653
Thierry Le Gleuher
12858v British Chess Magazine 1993
2. ehrende Erwähnung
P0008653
(15+15) C+
BP in 24,0
1. a4 Sf6 2. Ta3 Sd5 3. Tc3 Sb4 4. Txc7 Sa2 5. Tc3 Da5 6. h4 b6 7. Tch3 La6 8. g3 Ld3 9. Lg2 Sa6 10. Ld5 0-0-0 11. Sf3 Kb8 12. 0-0 Tc8 13. Th1 Tc3 14. Lc4 Ta3 15. b3 Ka8 16. Lb2 Sb8 17. Lf6 exf6 18. Dc1 Le7 19. Db2 Tc8 20. Dd4 Tc5 21. Sc3 Th5 22. Ta1 Dg5 23. Kf1 f5 24. Ke1 Lf6
play all play one stop play next play all
paul: Checked with Euclide for the first 19 moves (~45 min) (2014-07-04)
more ...
comment
Keywords: Unique Proof Game, Interchange (TT), Castling, Castling Paradox
Genre: Retro
Computer test: Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:02:47 Minuten. (hh:mm:ss) Keine Lösung: BP 23.0, BP 23.5.
FEN: kn6/p2p1ppp/1p3b2/5pqr/P1BQ3P/rPNb1NP1/n1PPPP2/R3K2R
Input: Gerd Wilts, 1997-05-19
Last update: A.Buchanan, 2023-04-01 more...
9 - P0500586
Rolf Wiehagen
Achim Schöneberg

8119 Die Schwalbe 141, p. 260, 06/1993
Lob
P0500586
(4+14) C+
h#5
1. Sf1 Sc7 2. d2 a6 3. d3 a5 4. Kd4 Ka4 5. Se3 Sb5#
play all play one stop play next play all
more ...
comment
Keywords: Interchange (KSBB ksbb), zyklischer Platzwechsel, Umnov, Selfblock, Model mate
Genre: h#
Computer test: Gustav 4.1d
FEN: 8/p2b4/N1r5/PKppn3/P1ppp1p1/b2pk3/3n4/8
Reprints: (13) harmonie 45, p. 165, 16/12/1995
Input: Gerd Wilts, 1996-06-06
Last update: Gunter Jordan, 2022-10-26 more...
10 - P0501256
Karl Fabel
Theodor Steudel

274 The Problemist 07/1971
P0501256
(3+14) C+
h#4
1. Dxf4 0-0-0 2. Sf2 Kb1 3. Sd2+ Ka1 4. Td4 Te1#
play all play one stop play next play all
Yuri Bilokin: Version: -bPe4 8/8/2r5/3b4/r1n2P2/pp1pkp2/6pq/R3K1bn (3+13) (2022-04-23)
comment
Keywords: Interchange (KT (16)), Castling (wg), Tempo Move (K)
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
FEN: 8/8/2r5/3b4/r1n1pP2/pp1pkp2/6pq/R3K1bn
Input: hpr, 1996-06-14
Last update: Alfred Pfeiffer, 2018-12-03 more...
11 - P0501318
Peter Kniest
feenschach 12/1973
5. Lob
27. Thematurnier
P0501318
(3+4) cooked
h#4
1. Df8 Lf1 2. Le6 Se3 3. Dc5+ Sc4+ 4. Kd5 Lg2#

NL:
1. Df4 Lf1 2. Le6 Se1 3. Kd5 Sd3 4. Dd6 Lg2#
play all play one stop play next play all
Yuri Bilokin: correction bQf1-c1, then a1=b1 8/8/4k3/8/3B3p/2bK4/7N/2q5 (3+4) h#4

1.Qg5 Bg1 2.Bf6 Sf3 3.Qd5+ Sd4+ 4.Ke5 Bh2# (MM) (2023-05-24)
comment
Keywords: Interchange (LS (20))
Genre: h#
FEN: 8/8/8/4k3/2B3p1/1bK5/6N1/5q2
Input: hpr, 1996-06-14
Last update: hpr, 1999-05-22 more...
12 - P0501392
Michael Schlosser
Karl Pohlheim

0-0 1981
2. -3. Lob
P0501392
(3+4) cooked
h#4*
*) 1. ... f4 2. Se7 f5 3. 0-0 f6 4. Kh8 f7#
1) 1. Se7 f4 2. 0-0 f5 3. Te8 f6 4. Kh8 f7#

NL:
*) 1. ... f4 2. Sh6 f5 3. 0-0 f6 4. Kh8 f7#
play all play one stop play next play all
Yuri Bilokin: +bSh6 4k1nr/K6p/7n/8/8/8/1B3P2/8 (3+5) (2021-06-11)
comment
Keywords: Interchange (kt (9)), Castling (sk)
Genre: h#
FEN: 4k1nr/K6p/8/8/8/8/1B3P2/8
Input: hpr, 1996-07-01
Last update: Alfred Pfeiffer, 2013-08-21 more...
13 - 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...
14 - P0501467
Fritz Hoffmann
7030v Schach 09/1972
P0501467
(3+7) cooked
h#4
1. Db6 b5 2. Ld8 bxc6 3. Ke7 c7 4. Df6 c8=S#

NL:
1. Da5 b5 2. Ld8 bxc6 3. Ke7 c7 4. f6 c8=S# ua
play all play one stop play next play all
Yuri Bilokin: Correction: -bPf7, +bRe1 3qb1K1/3n4/2pk1b2/5P2/1P6/8/8/4r3 (3+7) (2022-05-02)
comment
Keywords: Interchange (dl (8))
Genre: h#
FEN: 3qb1K1/3n1p2/2pk1b2/5P2/1P6/8/8/8
Input: hpr, 1996-07-01
Last update: hpr, 1999-04-06 more...
15 - P0501534
Jean-Michel Trillon
feenschach 7, p. 194, 01/1972
7. ehrende Erwähnung
P0501534
(6+11) cooked
h#5
1. Sf3+ Se1 2. Se5 f3 3. Lg1 d4 4. Sc4 Sd3 5. Sb6 Sc5#

NL:
1. Ld4 Se3 2. Lxb2 Kxb2 3. Kb6 Sc4+ 4. Kc5 Kc3 5. d5 d4#
1. Lc5 Sd4 2. La3 bxa3 3. b2 Kc2 4. b1=T Se6 5. Tb6 Sc5#
play all play one stop play next play all
Yuri Bilokin: Correction: wNc2-g2, bPb2, +bRa2, +bPa3 8/q2p4/kbp5/p7/P4p2/pp6/rp1P1PNp/1K4nr (5+14) (2020-11-29)
comment
Keywords: interchange in mating position (ls (50)), Checking key, Line opening, Line closing
Genre: h#
FEN: 8/q2p4/kbp5/p7/P4p2/1p6/1PNP1P1p/1K4nr
Input: hpr, 1996-07-01
Last update: Gunter Jordan, 2021-05-18 more...
16 - P0501535
Günter Glaß
feenschach 01/1972
6. ehrende Erwähnung
25. Thematurnier
P0501535
(7+12) cooked
h#5
1. Sd7 Le5 2. Sf6 Lxg3 3. Sxg4 Le1 4. Lb8 La5 5. Sh2 Lxe6#

NL:
1. Kd8 Lf6 2. Ke8 Lxg5 3. Kf7 Lf4+ 4. Kf6 Ld6 5. Kg5 Lxe7#
uvm
play all play one stop play next play all
Yuri Bilokin: Correction: wKd1-h1 nnk5/1p2p3/4p2p/2p3pP/6P1/4p1pB/4P1Pb/B6K (7+12) (2020-11-28)
comment
Keywords: Interchange (ls (72))
Genre: h#
FEN: nnk5/1p2p3/4p2p/2p3pP/4p1P1/4P1pB/6Pb/B2K4
Input: hpr, 1996-07-01
Last update: hpr, 1999-05-23 more...
17 - P0501885
Mykola Nagnibida
2582 Gazeta Czestochowska 16/05/1979
P0501885
(3+9) cooked
h#3
1. Df5 Td4 2. Se6 Lc4 3. Df4 Td5#

NL:
1. Td4 Le4 2. Td6 Lg6 3. Sd5 Te4#
1. Dg8 Txe4+ 2. Kf5 Te8 3. Dg5 Le4#
play all play one stop play next play all
Yuri Bilokin: correction wKa4-b4, bPb7-f7, bPb6-e3, bPg4-f3, bPf4(-bSf4), -bBa7, then rotate 90 8/8/1pr1pp2/2qkrp2/3B4/4R3/4K3/8 (3+8) h#3
1.Qd6 Re4 2.Rc5 Be3 3.Qc6 Rd4# (MM)

Blocking piece replacement (bQ-bR)
Blocking piece replacement (bR-bQ)
Pelle move (white)
Place exchange (bQ/bR)
Place exchange (wR/wB)
Model mate × 1 (2023-05-19)
comment
Keywords: Interchange (TL ds)
Genre: h#
FEN: 8/bp6/1p2qr2/3Bk3/K1R1rnp1/8/8/8
Input: hpr, 1996-07-12
Last update: hpr, 1999-06-04 more...
18 - P0502003
Charles Wermelinger
1536 Europe Echecs 02/1970
P0502003
(3+6) cooked
h#4
1. Sg3 Ld3 2. Kg2 Lf2 3. Tg1 Le1 4. Sf1 Le4#
play all play one stop play next play all
Cook: NL
1. Tg2 Lc5 2. Sg3 Kd4 3. Kg1 Le2 4. Kf2 Kd3#
Adrian Storisteanu: Possible fix: +bPd4. (2015-07-25)
Yuri Bilokin: Correction: -bPe6, +bQd7 8/3q4/8/8/2K1n3/7n/7r/4rBBk (3+6)
Consecutive Umnov (mixed, BrB, 2), Place exchange (wB/bR), Place exchange (wB/bS) (2021-11-20)
comment
Keywords: Interchange (Lt Ls)
Genre: h#
FEN: 8/8/4p3/8/2K1n3/7n/7r/4rBBk
Input: hpr, 1996-07-15
Last update: Alfred Pfeiffer, 2015-07-25 more...
19 - P0502767
Manfred Zucker
1536 Land og Folk 15/02/1975
P0502767
(3+4) C+
h#2
2.1...
1) 1. Sc3 Sc7 2. Sd5 Sb5#
2) 1. Sc7 Sc3 2. Sd5 Sb5#
play all play one stop play next play all
(MZ398)

MZ schreibt zu dieser Aufgabe:

"Die Aufgabe wurde von mir auch an 'Gazeta Czestochowska" eingeschickt und erschien dort drei Tage später, am 8. Juni 1976, als Nr. 1986. Sie hatte "Land og Folk" bereits über ein Jahr zu Veröffentlichung vorgelegen.
Die Lösungsbesprechung in "Land og Folk" von Schachredakteur J. P. Toft (Kopenhagen, Dänemark) am 12. Juni 1976 lautete: "Nr. 2053, Manfred Zucker ...." '.

VF: Es ist also zu klären ob die o.g. Urdruckdaten mit dem Original von LoF übereinstimmen.
Felber, Volker: klären: Urdruckdatum (2021-03-12)
comment
Keywords: Interchange (Ss,Ss), Miniature
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/3N4/8/1n1N4/2pk4/3p1K2/8/8
Input: hpr, 1996-07-28
Last update: Felber, Volker, 2021-03-11 more...
20 - P0502798
Achim Schöneberg
3849 Die Schwalbe 74 04/1982
3. Preis
P0502798
(3+12) C+
h#4
b) sSe4 tauschen mit sLh5
a) 1. Sxc5 Sxf5 2. Te4 Sd4 3. Ke3 Kg3 4. Sd3 Sc2#
b) 1. Kd4 Sxh5 2. Ld3 Kg3 3. Te4 Sg7 4. Ke3 Sxf5#
play all play one stop play next play all
klären Datum
Erich Bartel: die erste Zeile stimmt.Dort steht die Aufgabe auf Seite 459
als Urdruck. (2007-10-12)
Achim Schöneberg: Siehe P0502915 (2022-10-05)
comment
Keywords: Interchange (kts,kls)
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/2p4q/r1P2p1b/4n3/3krpNK/3pp3/6b1
Reprints: 3849 Die Schwalbe 06/1982
Input: hpr, 1996-07-28
Last update: hpr, 1999-06-05 more...
21 - P0502815
Shergil Sukhitashvili
1656 Gazeta Czestochowska 05/03/1974
P0502815
(9+12) cooked
h#2
4.1...
1) 1. Ld3 e3 2. Le2 e4#
2) 1. Se3 g3 2. Sg2 g4#
3) 1. Sg5 Lg8 2. Sf7 Lh7#
4) 1. Sf8 Txd6 2. Sg6 Lxe6#

NL:
1. Dg3 dxe5 2. Df4 Sg7#
1. Th1 dxe5 2. Sxe5 g4#
1. Ld3 exd3 2. De4 dxe4#
play all play one stop play next play all
Kees: I don't know how to send a diagram, but I fixed this one with a whole different position, but with the 4 thematic solutions I can send a FEN-notation with the 4 solutions

3K4/1pr1B1p1/s1pp2P1/2Rpk1S1/2Pb1sP1/3pPp2/4P3/3q1r2

1.Fc3 exd3 2.Fd2 d4‡
1.Ch3 exf3 2.Cf2 f4‡
1.Cxg6 Ff8 2.Ce7 Fxg7‡
1.Ch5 Txc6 2.Cf6 Fxd6‡ (2023-06-09)
comment
Keywords: Interchange (Bl,Bs,Ls)
Genre: h#
FEN: 4K3/2pr1B1n/3pp2p/3Rbk1N/3Pb1nP/5P2/4P1P1/4q1r1
Input: hpr, 1996-07-28
Last update: hpr, 1999-06-05 more...
22 - P0502915
Achim Schöneberg
3849v Die Schwalbe 155 10/1995
P0502915
(2+7) C+
h#4
b) sLc1 nach d4 (-sSd4)
a) 1. Sb3 Se3 2. Td4 Sd5 3. Kc4 Kc2 4. Sc5 Sb6#
b) 1. Kd5 Se1 2. Lc5 Sg2 3. Td4 Kc2 4. Kc4 Se3#
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Achim Schöneberg: AS: Siehe P0502798 (2022-10-05)
comment
Keywords: Interchange (kts,kls), Minimal
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/4p3/1pk5/1prn4/8/2N5/1Kb5
Input: hpr, 1996-08-28
Last update: Achim Schöneberg, 2021-12-09 more...
23 - P0502916
Torsten Linss
6676 Thema Danicum 82 04/1996
Rolf Wiehagen gewidmet
P0502916
(4+15)
h#5
1. Ke4 Tg5 2. Le3 h5 3. f2 h4 4. f3 Kh3 5. Kf4 Tg4#
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Anton Baumann: C+ Gustav 4.1d (2021-07-26)
comment
Keywords: Interchange (KTBB klbb)
Genre: h#
FEN: 8/5r2/2b1pppp/4pn1R/5pKP/4kpnP/5b2/4qr2
Input: hpr, 1996-08-28
Last update: hpr, 1999-06-06 more...
24 - P0503320
Wladimir Antoschin
Nikolai Charkow
Peter van den Heuvel

2766 Probleemblad 05-06/1995
P0503320
(2+15)
h#5
1. Tf7 Txg6 2. Tg7 Kxf5 3. Ke3 Ke5 4. Kf3+ Kd4 5. Kf4 Tf6#
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Anton Baumann: C+ Gustav 4.1d (2021-09-06)
comment
Keywords: Interchange (Kk Tt)
Genre: h#
FEN: 7b/3p2R1/5rpp/5nnb/p2k1Kpp/6p1/4q3/4r3
Input: hpr, 1996-09-10
Last update: hpr, 2001-01-19 more...
25 - P0512605
Matti Arvo Myllyniemi
1811 Revista de Sah 11/1964
P0512605
(4+7) cooked
h#4
1. Tf3 Sd4 2. Ke3 Le2 3. Se4 Kd1 4. Tf2 Sc2#

NL:
1. g5 Kc1 2. Kd3 La4 3. Se4 Lb5#
1. Sh3 Kc1 2. Tb3 Sd4 3. Kd3 Le2+ 4. Kc3 Sb5#
uvm
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Teppo Mänttä: There is a sound version (with one capture) by Myllyniemi, see P0502019 (2021-05-18)
comment
Keywords: Interchange (KLS kts)
Genre: h#
FEN: 6n1/7b/6p1/8/1p2k3/4r1P1/2K1Nn2/3B4
Input: Markus Manhart, 1997-09-30
Last update: hpr, 1999-10-21 more...
26 - P0516267
Johannes Joensen
12185 Tidskrift för Schack 10/1966
P0516267
(3+4) cooked
h#4
1. Kc3 Sb7 2. Kc4 Ke3 3. Kd5 Kd2 4. Ke4 Sd6#

NL:
1. Lh8 Kxf4 2. Kd3 Lg2 3. Sc2 Se4 4. Ld4 Lf1#
1. Sc2 Lc6 2. Sh3 Kf3 3. Kd3 Se4 4. Ld4 Lb5#
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Verstellung SL

Als Autor ist in der 'Tidskrift för Schack' angegeben: Johannes Joensen, Haldorsvik
Yuri Bilokin: correction +bRb6, +bRg5, +bPg3, then rotate 90 8/3r1p2/4n3/3bK3/2N1n1k1/8/2r5/B7 (3+7) h#4

1.Kf3 Sb2 2.Ke3 Kf5 3.Kd4 Kg4 4.Ke5 Sc4# (MM)

BK moves only
Place exchange (bK/wK)
Rovno theme (bK/wK)
Switchback (wS, captureless, 1)
Model mate × 1
Battery mate (2023-05-24)
comment
Keywords: Interchange (Kk(5)), Line closure, Aristocrat, Miniature
Genre: h#
FEN: B7/8/3N4/4b3/3nKn2/8/3k4/8
Input: Andreas Mokosch, 1997-07-25
Last update: Mario Richter, 2023-05-24 more...
27 - P0524803
Shlomo Seider
9050 Schach-Echo 08/1976
P0524803
(9+10) cooked
h#4
b) wBg2 nach c2
a) 1. Sec2 Lde4 2. De1 d5 3. Ld2 d4 4. Se3 Ld3#
b) 1. Sxd3 Lfe4 2. Te1 f5 3. T2f1 f4 4. Sf2 Lf3#

NL:
b) 1. Sxd3 Lh3 2. Te1 Le4 3. Txf3 Lg2 4. Sf2 Lxf3#
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Gerald Ettl: Verbesserungsvorschlag 8/8/3p1p1p/4B1B1/4P1P1/1p2PbP1/1Pp1qkrP/1nK1bnr1
h#4
b) wBh2-d2
a) 1.Sfd2 Le5-f4 2.Df1 e5 3.Lf3-e2 e4 4.Sf3 Le3#
b) 1.Sxe3 Lg5-f4 2.Tf1 g5 3.Tgg1 g4 4.Sg2 Lg3#
C+ (2023-10-06)
comment
Keywords: Echo, Interchange (LBBdls,LBBtts)
Genre: h#
FEN: 8/8/8/3B1B2/3P1P2/p2PbP2/Pp1qkrP1/nK1bnr2
Input: Markus Manhart, 1998-02-16
Last update: hpr, 1999-11-04 more...
28 - P1000475
Michel Caillaud
P0056 StrateGems 10 04-06/2000
4. Preis
P1000475
(15+15) C+
BP in 18,5
1. a4 e5 2. a5 e4 3. Ta4 e3 4. Te4+ Se7 5. b4 Sbc6 6. Lb2 Sd4 7. Dc1 Sxe2 8. Lf6 Sg3 9. d4 Sgf5 10. Ke2 Sh6 11. Kf3 Shg8 12. Kg4 e2 13. Dh6 e1=S 14. Se2 Sd3 15. Sc1 Sc5 16. Ld3 Sa6 17. The1 Sb8 18. T1e3 a6 19. Txe7+
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Pronkin-Thema mit Platzwechsel: Sg8 wird auf e7 geschlagen, sSb8 wandert nach g8, umgewandelter sSe1 geht nach b8. Zyklischer Platzwechsel von sSb8, sSg8 und sBe7.
Henrik Juel: Partial testing with Natch 3.1
18.0 moves with sDTLSPe7 and wTd5; only sSe7 works (2018-12-14)
Mario Richter: @Henrik: Did you mean "... and wTe4"? (2018-12-15)
Henrik Juel: Yes, I did, Mario (2018-12-16)
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comment
Keywords: Unique Proof Game, Pronkin Theme (s), Interchange
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.2 04:02:35 Stunden. (hh:mm:ss) Keine Lösung BP 17.5, BP 18.0. Checked by Stelvio 1.2 in about 5 hours.
FEN: rnbqkbnr/1pppRppp/p4B1Q/P7/1P1P2K1/3BR3/2P2PPP/1NN5
Reprints: (7) Quartz 21 07-09/2002
feenschach 153, p. 201, 10-12/2003
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2023-05-30 more...
29 - P1000597
Satoshi Hashimoto
R065 Probleemblad 09/1999
P1000597
(13+14) C+
BP in genau 9,5
1. a4 d5 2. Ta3 Lg4 3. Th3 e6 4. Txh7 Df6 5. Txg7 Txh2 6. Th7 Txg2 7. T1h3 Dxb2 8. Ta3 f6 9. Ta1 Da2 10. Th1
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paul: See P1000623 as a version. (2020-12-07)
comment
Keywords: Unique Proof Game, Interchange (TT)
Genre: Retro
Computer test: (Natch 1.3 Copyright (C) 1997-1999 Pascal Wassong)
FEN: rn2kbn1/ppp5/4pp2/3p4/P5b1/8/q1PPPPr1/RNBQKBNR
Input: Gerd Wilts, 2000-08-01
Last update: Gerd Wilts, 2004-08-26 more...
30 - P1000623
Satoshi Hashimoto
R065v Probleemblad 01/2000
P1000623
(14+14) C+
BP in 10.0
1. h4 e6 2. Th3 Lc5 3. Ta3 Lb6 4. Txa7 c5 5. Txb7 Txa2 6. Ta7 Txb2 7. T1a3 Dc7 8. Th3 Kd8 9. Th1 Dh2 10. Ta1 d6
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paul: Version of P1000597. (2020-12-07)
comment
Keywords: Unique Proof Game, Interchange (TT)
Genre: Retro
Computer test: (Natch 1.3 Copyright (C) 1997-1999 Pascal Wassong)
FEN: 1nbk2nr/5ppp/1b1pp3/2p5/7P/8/1rPPPPPq/RNBQKBNR
Reprints: 16 64 Proof Games 2012
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2020-12-08 more...
31 - P1000740
Michel Caillaud
R095 Probleemblad 07-08/2000
P1000740
(16+12) C+
BP in 16,0
1. b4 Sh6 2. b5 Sf5 3. b6 h6 4. bxa7 Th7 5. axb8=L Ta6 6. d4 Te6 7. d5 b6 8. d6 Lb7 9. dxe7 Lf3 10. exf8=L Lh5 11. L8a3 c5 12. L1f4 Ke7 13. Lbd6+ Kf6 14. Lf8 Da8 15. Lb8 Kg5 16. Lc1 Kg4
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Zyklischer Platzwechsel der 3 wLL.
paul: The problem obtained 3rd Prize in tourney. Reprints: H34, FIDE Album 1998-2000, H2 p.266, The Problemist Nov. 2007, p.187, feenschach 170 Nov. 2007. (2021-10-05)
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comment
Keywords: Unique Proof Game, Interchange (LLL), Non-standard material (LL)
Genre: Retro
Computer test: Resolution time : 1.98 s., Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong
FEN: qB3B2/3p1ppr/1p2r2p/2p2n1b/6k1/8/P1P1PPPP/RNBQKBNR
Input: Gerd Wilts, 2000-10-02
Last update: A.Buchanan, 2021-10-05 more...
32 - 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]
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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...
33 - P1001055
Satoshi Hashimoto
11046 Die Schwalbe 187 02/2001
P1001055
(14+15) C+
BP in 17,5
1. Sc3 b5 2. Sa4 b4 3. c3 b3 4. Dc2 bxc2 5. Tb1 cxb1=D 6. Sf3 De4 7. d3 e6 8. Le3 Df6 9. Sd2 Dff3 10. exf3 Lc5 11. Le2 d6 12. 0-0 Kd7 13. Ta1 Kc6 14. Sb1 Kb5 15. Lc1 Le3 16. Kf1 c5 17. Ke1 Sc6 18. Lf1
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Henrik Juel: Natch 3.3 just needed less than a second to test this proof game (2023-06-12)
comment
Keywords: Unique Proof Game, Ceriani-Frolkin Theme (d), Interchange (T), Castling, Switchback (LL)
Genre: Retro
Computer test: Resolution time : 58.79 s., Natch 2.3 Copyright (C) 1997,98,99,2001,2002,2003,2004 Pascal Wassong
FEN: r1b3nr/p4ppp/2npp3/1kp5/N3q3/2PPbP2/PP3PPP/RNB1KB2
Input: Gerd Wilts, 2001-02-11
Last update: Gerd Wilts, 2005-12-30 more...
34 - P1002924
Jean-Marc Loustau
10900 Ideal-Mate Review 07-09/2000
Preis
PR Eugene Albert
P1002924
(2+7) C+
h#7
0.1.1...
1. ... Kd2 2. Se6 Kd3 3. Tcd4+ Kxc3 4. Lc4 Kb2 5. Td5+ Kc1 6. Kd4 Kd2 7. Sc5 c3#
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Yuri Bilokin: you can see *) 1... ... 2.Se6 Kd2 3.Rcd4+ Kxc3 4.Bc4 Kb2 5.Rd5+ Kc1 6.Kd4 Kd2 7.Sc5 c3# (IM) (2022-07-03)
comment
Keywords: Minimal (b), Pawn mate, Switchback (K), Rücknahme Schlüsselzug, Round Trip (K-5), Selfblock, Ideal mate, interchange in mating position (ktls)
Genre: h#
Computer test: (Popeye WINDOWS-32Bit-Version 3.73 (2048 KB))
FEN: 8/8/8/2kbb3/2rnr3/2nK4/2P5/8
Input: hpr, 2002-03-02
Last update: Gunter Jordan, 2024-03-18 more...
35 - P1007295
Joost de Heer
11786 Die Schwalbe 02/2003
4. ehrende Erwähnung
P1007295
(8+14) C+
BP in 15,5
1. h4 e6 2. Th3 Df6 3. Te3 Dxb2 4. Sc3 Dxc2 5. La3 Dxa2 6. Da4 Le7 7. 0-0-0 Dxd2+ 8. Kb1 Dxe2 9. Lc1 Dxf2 10. Da1 Dxg2 11. Lxg2 Lxh4 12. Lxb7 Se7 13. Lh1 La6 14. Tf1 Sc8 15. Tee1 Le2 16. Sd1
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more ...
comment
Keywords: Unique Proof Game, Interchange, Castling
Genre: Retro
Computer test: C+ Stelvio 1.2 in about 30 minutes. Natch 3.1 did little in an hour
FEN: rnn1k2r/p1pp1ppp/4p3/8/7b/8/4b3/QKBNRRNB
Input: Gerd Wilts, 2003-03-23
Last update: A.Buchanan, 2023-05-11 more...
36 - P1008461
Pavlos N. Moutecidis
10131 Die Schwalbe 173 10/1998
Frank Müller gewidmet
Informalturnier
3. ehrende Erwähnung
P1008461
(6+2) C+
s#14*
(P. Moutecidis). Das einzügige Satzmatt 1.- D:g8# kann nicht aufrecht gehalten werden. Deshalb muß Weiß sein Ziel anders erreichen:
1. Te6+ Kf5 2. De4+ Kg5 3. Te5+ Kf6! 4. Tf5+ Kg6 5. Tf4+ Kg5! 6. Tg4+ Kh6,Kh5 7. Th4+ Kg5 8. Df4+ Kg6 9. Lf5+ Kf6 10. Le4+ Ke6 11. Df5+ Kd6 12. Dd5+ Kc7 13. Db7+ Kd6 14. De7+ Dxe7#
Trotz des Cookstoppers h3 mit nur 8 Steinen sehr ökonomisch. " Ein schwieriges Fata-Morgana-Problem mit einem unerwarteten Finale " (RJB), ganz typisch für den Autor, der sic h schon über Jahrzehnte mit beachtlichem Erfolge diesem Genre widmet. Wegen des Pseudo-Platzwechsels würde die Aufgabe natürlich nicht 100 -ig in das 180.Thematurnier passen. Danke an PM für die Widmung. Die Vergleichsaufgabe demonstriert die Vielf" altigkeit dieses Zugwechselschemas (* 1.- D:e1# - 1.Tg3+ Kf4 2.Tf3+ Kg4 3.Tf4+ Kh3 4.Dg2+ D:g2#). 8L endwindow
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comment
Keywords: Interchange (DT), Minimal (b)
Genre: s#
Computer test: Gustav 3.1s
FEN: 4K1R1/3BR1q1/6k1/8/7Q/7P/8/8
Input: Gerd Wilts, 2003-06-29
Last update: Dieter Berlin, 2024-01-18 more...
37 - P1008496
Mirko Degenkolbe
Reinhardt Fiebig

10190 Die Schwalbe , p. 638, 12/1998
5. Lob
P1008496
(5+5) C+
s#12
1. Dc6+ Ka7 2. Lb6+ Kb8 3. Dc7+ Ka8 4. Sh5 Lh2 5. Dc8+ Lb8 6. Sf6 h5 7. Lxf2 h4 8. Sg4 h3 9. Da6+ La7 10. Sh2 Kb8 11. Lg3+ Ka8 12. Lg2 fxg2,hxg2#
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Zunächst werden die Standplätze von D und L getauscht, damit danach "der Läufer unter Kontrolle gebracht werden kann." (MW) Die Rückkehr lässt den Bauern laufen und gibt Zeit zu weiteren Umgruppierungen. Um den überraschenden Schlußzug mit Mustermatt genießen zu können, muß man den neuralgischen Zug 7.L:f2 gefunden haben. WW begeistert: " Ein wunderbar leicht wirkendes Problem in mehreren logischen Schritten, hinter denen aber viel Erfahrung (und also schwierige) Arbeit steckt". 6L
(MD0183)
Wilfried Seehofer: Eine tolle Aufgabe, solche guten Urdrucke wünsche ich mir in Zukunft für Schach-Aktiv! (2004-11-07)
Moldenhauer: Computerprüfung: C+ Gustav 4.1d in 3 Tagen 22 Std. 4 Min. (2022-07-03)
comment
Keywords: Interchange (DL), Round Trip (S), Model mate
Genre: s#
FEN: k7/2B5/1Q3N1p/8/8/5p2/5p2/5BbK
Input: Gerd Wilts, 2003-06-29
Last update: Felber, Volker, 2022-12-21 more...
38 - P1008660
Unto Heinonen
10480 Die Schwalbe 178 08/1999
P1008660
(9+2)
s#7 *
Satz: 1.... Gh6#
1. Se5 Ge4 2. Sf3 Gg2 3. Gg1 Ge4 4. Se5 Ge6 5. Tg7 Ge4 6. Gg8 Ge6 7. Sg6 Gh6#
Da der Satz nicht aufrecht erhalten werden kann, führt Weiß einen Platzwechsel zwischen Tg8 und Gg7 durch, um das Satzmatt doch noch zu erreichen.
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wDU, sDU = Grashüpfer
SCHRECKE: C+, popeye 3.61 (2020-12-15)
comment
Keywords: Interchange (TG)
Pieces: du = Grasshopper (G)
Genre: Fairies
FEN: k4BRK/P5*2QP/P3*2q1N1/1N6/8/8/8/8
Input: Gerd Wilts, 2003-06-30
Last update: Olaf Jenkner, 2015-02-02 more...
39 - P1009121
Hartmut Brozus
11258 Die Schwalbe 191 10/2001
P1009121
(2+4)
#7
(H. Brozus). 1.Dd5! Kh1 2.Kd2 Lg1 3.Dh5+ Lh2 4.Df3 Kg1 5.Dd1+ Kf2 6.De2+ Kg1 7.De1#. WW: Sehr verführungsreiche und überzeugende Miniatur! KHS: Hübscher Platzwechsel zwischen wK/wD. Ein Löser bemängelte, dass es lange sieben Züge dauert, bis der Platzwechsel hergestellt ist und nicht schneller geht. Ich finde gerade das als Pfiff des Problems, dass es eben mit einem dreizügigen Dreieckmarsch nicht getan ist!
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SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-08-19)
comment
Keywords: Minimal, Interchange (KD)
Genre: n#
FEN: 8/8/8/8/8/6p1/3Q2pb/4K1k1
Input: Gerd Wilts, 2003-07-01
Last update: Olaf Jenkner, 2010-01-23 more...
40 - P1009202
Aleksandar Popovski
11398 Die Schwalbe 193 02/2002
P1009202
(5+4)
s#3
Platzwechsel-Circe
(A. Popovski). 1.Lh5! [2.Tb3 h:g3 (Sh4) 3.Sf3 g2#] h:g3 (Sh4) 2.Sf3 b3 3.Lb2 g2#; 1.- b3 2.Lb2 h:g3 (Sh4) 3.Sf3 g2# Eigentlich nur eine Phase mit Zugumstellung bei S. Eine etwas laue Suppe (EB). Reziproker Wechsel der der 2. und 3. wZüge und der 1. und 2. sZüge, ein Effekt ohne weiteren Tiefgang (KHS). Drohung und Abspiele sind m. ,E. alle zu ähnlich (PH). Ohne Fortsetzungswechsel ist dieser Tausch der sZüge witzlos - eine sehr magere Aufgabe (AB).
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SCHRECKE: C+, popeye 4.87 (2023-09-25)
comment
Keywords: Circe, Interchange
Genre: Fairies
FEN: 8/8/8/8/1p5p/3R1BNk/7p/2B4K
Input: Gerd Wilts, 2003-07-01
41 - P1009495
Peter Rösler
B4 Problemkiste 148 08/2003
P1009495
(15+16) C+
BP in 5,0
Stafettenschach
1. e4 e5 2. Ke2 Dh4 3. De1 Dxe4+ 4. Kd1 Dh4 5. d4 Dd8
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Henrik Juel: Without the condition the solution also works, but there are many cooks (2020-11-01)
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comment
Keywords: Unique Proof Game, Relay Chess, Interchange (KD)
Genre: Retro, Fairies
Computer test: paul: Checked by Jacobi (with relay condition) (2020-10-31)
FEN: rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP2PPP/RNBKQBNR
Input: Gerd Wilts, 2003-08-15
Last update: Erich Bartel, 2020-11-01 more...
42 - P1011934
Gligor Denkovski
R219 Probleemblad 12/2003
P1011934
(12+13) C+
BP in 20,0
1. e4 h5 2. Dxh5 a5 3. Dxa5 Txh2 4. g3 Txf2 5. Th8 Txd2 6. Lh3 Th2 7. Lh6 Th1 8. Kd2 g6 9. Kc3 Lg7+ 10. Kb3 Lxb2 11. Sc3 Ta6 12. Td1 Tf6 13. Txd7 Tf1 14. Td6 Ta1 15. Ta6 b6 16. Ta8 La6 17. Lf8 Lf1 18. Da7 Sa6 19. Sge2 Db8 20. Lc8 Lc1
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Platzwechsel aller Türme und Läufer.
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comment
Keywords: Unique Proof Game, Interchange, Belfort (TTLLttll)
Genre: Retro
Computer test: HJ: I forgot to kill Natch and discovered later that the solution was found Moldenhauer: Computerprüfung: C+ Stelvio 1.11 04:24:38 Stunden. (hh:mm:ss) Keine Lösung: BP 19.0, BP 19.5.
FEN: RqB1kBnR/Q1p1pp2/np4p1/8/4P3/1KN3P1/P1P1N3/r1b2b1r
Input: Gerd Wilts, 2004-01-04
Last update: A.Buchanan, 2023-03-25 more...
43 - P1012575
Thierry Le Gleuher
diagrammes 3/2000
P1012575
(12+16) C+
BP in 15,0
1. h4 d5 2. Th3 d4 3. Tc3 Dd5 4. Tc6 Dxa2 5. Sc3 Dxb2 6. Ta5 Da1 7. La3 g5 8. Ld6 g4 9. Lh2 g3 10. Db1 gxh2 11. Sd1 h1=D 12. Db5 Dh2 13. Df5 Dd6 14. Td5 Dd8 15. Td7 Dxd1
play all play one stop play next play all
No. 2608 HN
paul: Source: diagramme 133/2000 (2022-04-06)
comment
Keywords: Unique Proof Game, Interchange
Genre: Retro
Computer test: Natch 2.2 Copyright (C) 1997,98,99,2001,2002,2003 Pascal Wassong
FEN: rnbqkbnr/pppRpp1p/2R5/5Q2/3p3P/8/2PPPPP1/3qKBN1
Input: Henri Nouguier, 2004-01-11
Last update: Gerd Wilts, 2004-08-26 more...
44 - P1012672
James Grenfell Mauldon
Sunday Times 1973
P1012672
(15+10)
Zeige, dass die wTT den Platz getauscht haben
1) #1 (wer?)
2) Welches waren die letzten 26 Einzelzüge?
a) Platztausch der wTT und Matt durch Schwarz folgen unmittelbar aus der Eindeutigkeit der Stellung vor den letzten 26 Einzelzügen (Endstellung: 8/p1pppp1p/1p6/8/B3N2P/R3nPPk/PPPPPrbn/QKN1qrbR).
b) R: 1. Sb4-a6 Ba6-a5 2. exBf7 Ba7-a6 3. dxBe6 Be7-e6 4. Bc4xBd5 Bd6-d5 5. Lb3-a2 Bd7-d6 6. La4-b3 Bh7-h6 7. Bb3xBc4 Bc5-c4 8. Sd3-b4 Bc6-c5 9. Ta3-a1 Bc7-c6 10. Ba2xBb3 Bb4-b3 11. Da1-b1 Bb5-b4 12. Kb1-c1 Bb6-b5 13. Sc1-d3 Se3-d1
Bevor der wTa3 auf die Grundreihe zurückkehren kann, muß erst Bg2-g3 zurückgenommen werden, dann steht aber schon der wL auf f1, ein wT muß zuvor an den D-Flügel gebracht werden, dies kann folglich nur der wTh1 leisten.
play all play one stop play next play all
No. 444 HN
Hans-Jürgen Manthey: R: zwingend: 1. Sb4-a6 a6-a5 2. exf7 a7-a6 3. dxe6 e7-e6 4. c4xd5 d6-d5 5. Lb3-a2 d7-d6 6. La4-b3 h7-h6 7. b3xc4 c5-c4 8. Sd3-b4 c6-c5 9. Ta3-a1 c7-c6 10. a2xb3 b4-b3 11. Da1-b1 b5-b4 12. Kb1-c1 b6-b5 13. Sc1-d3 Se3-d1 und weiter könnte folgen:
14. Tb3-a3 Dd1-e1 15. Tb4-b3 Te1-f1 16. Tc4-b4 Tf1-f2 17. Tc5-c4 Sg4-e3 18. Td5-c5 Ld4-g1 19. Td6-d5 Lg7-d4 20. Tc6-d6 Tf2-f1 21. Tc5-c6 Sf6-g4 22. Tf1-h1 Sg4-h2 23. Tb5-c5 Kh2-h3 24. Ta5-b5 Lh3-g2 25. Ta6-a5 Se5-g4 26. Ta5-a6 Le6-h3 27. Tb5-a5 Ld5-e6 28. Tc5-b5 Lb7-d5 29. Tc6-c5 Tg2-f2 30. Tf2-f1 Th1-e1 31. Lb3-a4 Dg1-d1 32. Tf1-f2 Dd4-g1 33. Sd3-c1 Dc3-d4 34. Kc1-b1 Tg1-g2 35. Kd1-c1 La6-b7 36. Ke1-d1 Lb7-a6 37. Kf2-e1 La6-b7 38. Ke3-f2 Lb7-a6 39. De1-a1 Tg2-g1 40. Df2-e1 La6-b7 41. Ta1-f1 Tc1-h1 42. Td6-c6 Th1xLc1 43. De1-f2 Tg1-g2 44. Le6-b3 Sc6-e5 45. Lh3-e6 De5-c3 46. Lf1-h3 Dc3-e5 47. Dd1-e1 De5-c3 48. Kf2-e3 Dc3-e5 49. Ke1-f2 Dd4-c3 50. Sc3-e4 De5-d4 51. g2-g3 Kg3-h2 52. Sf2-d3 Kf4-g3 53. Td5-d6 Se4-f6 54. Td3-d5 Th3-h1 55. Td4-d3 Th1-g1 56. Td3-d4 Tg3-h3 57. Td4-d3 Lh6-g7 58. Td5-d4 Tg8-g3 59. Td6-d5 Ta8-g8 60. Td5-d6 Dh8-e5 61. Td4-d5 Dd8-h8 62. Td3-d4 Kf5-f4 63. Td4-d3 Kg6-f5 64. Td5-d4 Sf6-e4 65. Td6-d5 Kg7-g6 66. Td5-d6 Th3-h1 67. Sb1-c3 Tg3-h3 68. Sh3-f2 Kf8-g7 69. Sg1-h3 Tg8-g3 70. c2-c3 Ke8-f8 71. Td4-d5 Th8-g8 72. Td3-d4 Sg8-f6 73. Te3-d3 Lf8-h6 74. Tf3-e3 Lc8-a6 75. Tg3-f3 Sb8-c6 76. Th3xg3 b7-b6 77. Th2-h3 g4-g3 78. Th1-h2 g5-g4 79. h3-h4 g7-g5 80. h2-h3 (2021-07-14)
comment
Keywords: Last Moves? (6), Interchange
Genre: Retro
FEN: 8/5P2/N6p/p7/4N2P/5PPk/BPPPPrbn/RQKnqrbR
Input: Henri Nouguier, 2004-01-11
Last update: Mario Richter, 2011-10-01 more...
45 - P1013083
Roberto Osorio
Jorge Joaquin Lois
Oscar Cuasnicú

R230 Probleemblad 02/2004
3. Lob
P1013083
(15+15) C+
BP in 21,5
1. g3 Sa6 2. Lg2 Tb8 3. Lc6 bxc6 4. Sf3 Tb3 5. 0-0 Ta3 6. bxa3 e6 7. Lb2 Le7 8. Ld4 Lh4 9. Sc3 Dg5 10. Tb1 Se7 11. Tb8 0-0 12. Db1 Lb7 13. Te8 Sg6 14. Te7 Ta8 15. Te8+ Sf8 16. Td8 Lc8 17. Db7 Db5 18. Ta1 Db1+ 19. Se1 Dd1 20. Sb1 Sb8 21. Lb2 a6 22. Lc1
play all play one stop play next play all
Aufwändige Manöver zum Einschleusen des wTa1 nach d8 und der sD nach d1. wTa1/sTa8 sind wTh1/sTh8.
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:10:35 Minuten. (hh:mm:ss)
Keine Lösung: BP 20.5, BP 21.0. (2023-03-16)
comment
Keywords: Unique Proof Game, Promenade, Interchange, Castling (2), Switchback (LSls), Impostor (Tt)
Genre: Retro
Computer test: Stelvio 1.11
FEN: rnbR1nk1/1Qpp1ppp/p1p1p3/8/7b/P5P1/P1PPPP1P/RNBqN1K1
Reprints: (81) Die Schwalbe 250A 08/2011
Input: Gerd Wilts, 2004-02-20
Last update: Silvio Baier, 2023-03-20 more...
46 - P1013131
Eric Pichouron
R138 Problemesis 38 04/2004
P1013131
(16+13) C+
BP in 22,0
1. c4 a5 2. c5 a4 3. c6 a3 4. cxb7 Sc6 5. bxa8=T La6 6. Da4 Db8 7. Dh4 Kd8 8. g4 Kc8 9. Lg2 Kb7 10. Le4 Da7 11. Txf8 Sf6 12. Ta8 Tb8 13. Lc2 Kc8 14. d3 Kd8 15. Lh6 Tc8 16. Tb8 Ke8 17. Tb6 Ta8 18. Sd2 Db8 19. Tc1 Dd8 20. Lb1 Sb8 21. Tcc6 Sg8 22. Tf6 Lc8
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Interchange, Switchback (kdlss), Impostor (t)
Genre: Retro
Computer test: Computerprüfung: C+ Stevio 1.11 48:53:36 Stunden. (hh:mm:ss) Keine Lösung: BP21.0, BP 21.5.
FEN: rnbqk1n1/2pppppp/1R3R1B/8/6PQ/p2P4/PP1NPP1P/1B2K1NR
Input: Gerd Wilts, 2004-04-01
Last update: A.Buchanan, 2023-03-13 more...
47 - P1013998
Hans Gruber
Erich Bartel

A6 Problemkiste 106 08/1996
P1013998
(2+2)
ser-Fesselung in 4
1. Ka2 2. Ta1 3. Kb1 4. Ta3 F
play all play one stop play next play all
Erich Bartel: Figuren-Parallelogramm z1b1c3b3 (2021-04-05)
more ...
comment
Keywords: Interchange (KT), Seriesmover, Pin, Aristocrat, Minimal, Move Length Record
Genre: Fairies
FEN: 8/8/8/8/8/1nk5/8/KR6
Input: Hans Gruber, 2004-05-01
Last update: Alfred Pfeiffer, 2019-07-10 more...
48 - P1014757
Alexander Hildebrand
7705 feenschach 06-08/1999
P1014757
(4+3) C+
s#2
1. Sge3! g3 2. Sg4 g2#
play all play one stop play next play all
Platzwechsel wS/sB in einfachster Form.
3007
SCHRECKE: C+, popeye 4.89 (2023-10-22)
comment
Keywords: Interchange (Sb), Miniature
Genre: s#
FEN: 6R1/8/8/5N2/6p1/7k/6Np/7K
Reprints: 267 Selbstmatt-Miniaturen Reflexmatt-Miniaturen 2003
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2023-10-23 more...
49 - P1014763
Eugeniusz Iwanow
784 Problemista 08/1964
P1014763
(3+4) C+
s#2
b) wBe7 nach g7
c) ferner sBf7 nach h7
d) ferner Platztausch wBg7, sBh7
e) ferner wBh7 nach f7
a) 1. e8=S! droht 2. Sf6 b2#
1. ... f5 2. Tf4 b2#
b) 1. g8=S! droht 2. Sf6 b2#
1. ... f5 2. Tf4 b2#
c) 1. g8=S! droht 2. Sh6 b2#
1. ... h5 2. Th4 b2#
d) 1. h8=S! droht 2. Sg6 b2#
1. ... g5 2. Tg4 b2#
e) 1. f8=S! droht 2. Sg6 b2#
1. ... g5 2. Tg4 b2#
play all play one stop play next play all
2044
SCHRECKE: a)-e): C+, popeye 4.89 (2023-10-22)
comment
Keywords: Drohproblem, Interchange, Promotion, Miniature
Genre: s#
FEN: 8/4Pp2/8/8/2R5/kp6/p7/K7
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2023-10-23 more...
50 - P1014941
Pavlos N. Moutecidis
7939 feenschach 11-12/1999
Lob
PR Hans Gruber, Bernd Ellinghoven, Hans Peter Rehm
P1014941
(5+2) C+
s#16
1. De2+ Kg1 2. Le3+ Kh1 3. Dh8+ Dh7 4. Df1+ Kh2 5. Db2+ Dc2 6. Lg1+ Kh1 7. Lf2+ Kh2 8. Dg1+ Kh3 9. Dg4+ Kh2 10. De5+ Kh1 11. De1+ Kh2 12. Lg1+ Kh1 13. Le3+ Kh2 14. Df4+ (Platzwechsel wD/wL) Kh3 15. Dh1+ Dh2 16. Dg2+ Dxg2#
Der Platzwechsel wird mit der Umwandlungsdame erkauft, aber zugleich durch den mehrfachen Pendelschwung des weiß-schwarzen Damenpaares und dem Pendel der weißen Läufers mit beiden Damen als Batteriehinterstein beträchtlich aufgewertet. Eine originelle Konzeption.
play all play one stop play next play all
2568
more ...
comment
Keywords: Langzügige Miniatur, Interchange (DL), Obvious promotion, Minimal (d), Miniature
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/8/2P5/5B2/4QK2/8/Qq3k2
Reprints: feenschach 139, p. 18, 01-03/2001
467 Selbstmatt-Miniaturen Reflexmatt-Miniaturen 2003
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Gunter Jordan, 2021-11-08 more...
51 - P1015488
Alexander Hildebrand
7710 feenschach 06-08/1999
P1015488
(5+2) C+
s#4
1. 0-0! Ke2 2. Tfe1+ Kf3 3. Kh1 Kf2 4. Dg2+ hxg2#
play all play one stop play next play all
3016
SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-12-25)
comment
Keywords: Castling, Interchange (KT), Minimal, Miniature
Genre: s#
FEN: 8/8/6Q1/8/8/4k2p/7B/3RK2R
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-12-30 more...
52 - P1015570
Alexander Hildebrand
7706 feenschach 06-08/1999
P1015570
(4+3)
s#3
1. Se3 f4 2. Sf5 f3 3. Dg2+ fxg2#
Platzwechsel wS/sB.
play all play one stop play next play all
3008
SCHRECKE: C+, popeye 4.87 (2023-10-02)
comment
Keywords: Interchange (Sb)
Genre: s#
FEN: 8/8/8/5pQ1/7P/7k/6Np/7K
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Olaf Jenkner, 2010-01-23 more...
53 - P1015572
Günter Glaß
4986 Problemkiste 12/1999
P1015572
(3+4) C+
s#4
1. Kd2 e5 2. Le2 e4 3. Kd1 e3 4. Tb2+ Kxb2#
play all play one stop play next play all
2454
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-02-01)
comment
Keywords: Interchange (KL), Miniature
Genre: s#
FEN: 8/8/4p3/8/8/8/p1R1K3/rk1B4
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2022-02-06 more...
54 - P1015573
Ziva Tomic
297 Bilten 12/1962
3. Preis
P1015573
(3+3) C+
s#5
1. Ld3! Kb4 2. Dc4+ Ka5! 3. Dc5+ Ka4 4. Db5+ Ka3 5. Lc2 Ta1#
play all play one stop play next play all
Platzwechsel wD/wL und gleichzeitig Blockwechsel auf c2.
0775
more ...
comment
Keywords: Interchange (DL), Miniature
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/8/1B6/8/k7/rpQ5/1K6
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-04-19 more...
55 - P1015576
Alexander Hildebrand
7713 feenschach 06-08/1999
P1015576
(4+2) C+
s#5
1. Df2! h5 2. Kg1 h4 3. Df1+ Kg3 4. a8=L h3 5. Lh1 h2#
play all play one stop play next play all
Platzwechsel wK/wD.
3019
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-07-05)
comment
Keywords: Interchange (KD), Minimal, Miniature
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/P7/7p/8/R7/7k/8/5KQ1
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-07-05 more...
56 - P1015577
Alexander Hildebrand
7717 feenschach 06-08/1999
P1015577
(5+2) C+
s#5
1. Df5! f3 2. Tg4+ Kh3 3. Tf4+ Kg3 4. Dg5+ Kh3 5. Dg2+ fxg2#
play all play one stop play next play all
Platzwechsel wT/sB. In { it feenschach}, IV-V 2001, veröffentlichte Iwan ,A. Brjuchanow eine Version hiervon (C+): wKh1, wDf4, wTg2, wLg1, wBe4, sKh3, sBf3, S#5, 1. Df5+ Kh4 2. Tg4+ ...
3023
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-07-20)
comment
Keywords: Interchange (Tb), Minimal, Miniature
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/3Q4/8/8/4Pp1k/8/6R1/6BK
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-07-27 more...
57 - P1015578
Günter Glaß
4940 Problemkiste 10/1999
P1015578
(4+3) C+
s#5
1. Tb4 b5 2. Ld1 g4 3. Txg4 b4 4. Lc2 b3 5. Lb1 b2#
Platzwechsel wT/wL.
play all play one stop play next play all
2432
more ...
comment
Keywords: Interchange (TL), Miniature
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/8/1p6/6p1/6B1/k7/8/KR2B3
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Arnold Beine, 2021-03-31 more...
58 - P1015585
Günter Glaß
4988 Problemkiste 12/1999
P1015585
(4+3) C+
s#6
1. Te2! g4 2. Kf1+ Kg3 3. Kg1 h2+ 4. Kh1 Kh3 5. Te3+ g3 6. Te4 g2#
play all play one stop play next play all
Platzwechsel sK/sB. Attraktiver Auswahlschlüssel.
2455
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-11-18)
comment
Keywords: Interchange (kb), Miniature, Pawn mate, Corner mate
Genre: s#
FEN: B7/8/6N1/6p1/8/7p/1R3K1k/8
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Gunter Jordan, 2023-03-13 more...
59 - P1015586
Nils Adrian Bakke
G13/14 feenschach 01-05/2000
P1015586
(5+2) C+
s#6
1. Td8+! Ke7 2. Th7+ Tf7 3. Dd7+ Kf6 4. Tf8 Kg6! 5. Dg4+ Kf6 6. De4 Txf8#
play all play one stop play next play all
Platzwechsel sK/sT.
2665
more ...
comment
Keywords: Interchange (kt), Aristocrat, Minimal, Miniature
Genre: s#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-20)
FEN: 5k1K/3R4/5r2/3Q4/8/5N2/8/7R
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-03-23 more...
60 - P1015610
Nils Adrian Bakke
Die Schwalbe 06/1999
2. ehrende Erwähnung
P1015610
(4+2) C+
s#5
1. Lf3! Kh4 2. Le2 Kh3 3. Dh1+ Kg3 4. Kg1 f3 5. Lf1 f2#
play all play one stop play next play all
Zyklischer Platzwechsel wK/wD/wL.
2381
more ...
comment
Keywords: Interchange (KDL), Minimal, Miniature
Genre: s#
Computer test: Anton Baumann: C+ Gustav 4.1d (2021-05-29)
FEN: 8/8/8/8/R4p2/7k/8/5KQB
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-05-31 more...
61 - P1016362
Valery Surkov
7609 feenschach 01-05/1999
P1016362
(3+3) C+
s#5
1. Ddb5+! Ka3 2. Dd6+ Db4 3. Dba6+ Kb3 4. Ddd3+ Dc3 5. Da5 Dxd3#
play all play one stop play next play all
Platzwechsel wD/wD im Spiel.
2317
more ...
comment
Keywords: Interchange (DD), Miniature
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/Q7/q7/k7/3Q4/1p6/1K6
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-04-19 more...
62 - P1016609
Oleg W. Paradsinski
P9 Promotion Heft 31 03/2003
P1016609
(3+3) C+
s#5
1. Dd3+! Ke1 2. Te2+ Kf1 3. Te3+ Kf2 4. Dd2+ Kf1 5. Dg2+ hxg2#
play all play one stop play next play all
Platzwechsel von wD und wT.
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-07-25)
comment
Keywords: Interchange (DT), Miniature
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/8/8/8/8/4Q1pp/6R1/5k1K
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-07-27 more...
63 - P1016612
Hartmut Brozus
15150 Schach 12/2002
P1016612
(4+3) C+
s#5
1. Dd5 e4 2. Df5 d5 3. Le2 d4 4. Df1 d3 5. Ld1 d2#
play all play one stop play next play all

Duplicate Diagram: P1324796

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-06-17)
comment
Keywords: interchange in mating position (DL), Miniature
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/8/3pN3/4p3/8/4k3/8/3QKB2
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-06-29 more...
64 - P1017456
Andrey Frolkin
Kostas Prentos

feenschach 154 2004
2. Preis Retro-Kompositionsturnier
P1017456
(13+14) C+
BP in 27,5
1. f4 e5 2. f5 e4 3. f6 e3 4. fxg7 exd2 5. Kf2 a5 6. e4 a4 7. e5 a3 8. e6 axb2 9. Sa3 b1=T 10. e7 Tb6 11. Tb1 d5 12. Tb5 d4 13. Lb2 d3 14. Da1 dxc2 15. Ld3 c1=T 16. Se2 Tb1 17. Tc1 d1=T 18. Tc4 Tdc1 19. Lc2 Dd1 20. Ke3 Dh1 21. Kd4 Td6+ 22. Kc5 c6 23. Kb6 Lh3 24. Kxb7 Kd7 25. e8=T Se7 26. g8=T Lh6 27. Tg7 Tdd1 28. Teg8
play all play one stop play next play all
Zyklischer Platzwechsel der sUWTTb1, c1, d1
Kostas Prentos: C+ Natch 3.3 (13 h 17 min 58 sec) (2022-12-08)
more ...
comment
Keywords: Unique Proof Game, Interchange
Genre: Retro
Computer test: KP: C+ Stelvio 1.0 tested this one in 1 min 46 sec.
FEN: rn4Rr/1K1knpRp/2p4b/1R6/2R5/N6b/PBB1N1PP/Qrrr3q
Reprints: Messigny 05/2004
Input: Gerd Wilts, 2004-06-03
Last update: A.Buchanan, 2023-03-20 more...
65 - P1017461
Kostas Prentos
Andrey Frolkin

Messigny 05/2004
1. ehrende Erwähnung Retro-Kompositionsturnier
P1017461
(13+15) C+
BP in 21,5
1. a4 h5 2. a5 h4 3. a6 h3 4. axb7 hxg2 5. Ta6 Th3 6. Tf6 Ta3 7. h4 c5 8. Th3 c4 9. Td3 cxd3 10. c4 gxf6 11. c5 Lh6 12. c6 Le3 13. c7 Sc6 14. b8=T Sh6 15. Tb4 Tb8 16. Tc4 Tbb3 17. Sc3 Lb6 18. e3 Lb7 19. Sge2 Da8 20. c8=T Ld8 21. Tb8 Sd4 22. Tcc8
play all play one stop play next play all
paul: 16.Tc4 T8b3 (2020-11-03)
A.Buchanan: A nice trick for the parser which builds the animation would be to spot when a move is ambiguous. So here 16. ... Tb3 needed to be fixed to be 16. ... Tbb3. In this case, the animation guessed wrong and later reported that 19. ... Da8 was impossible. However in some cases, the error might not be picked up by a later illegal move, yet it could still be important. I will request that Gerd have a look at fixing this ancient issue. (2020-11-04)
A.Buchanan: 22.Tc8 was also imprecise, but did not cause a later illegality so there was no clue. Comparing the diagram at the end of animation to the start diagram would not necessarily be sufficient even for proof games, and completely inadequate for forward stipulations. It’s the parser can best nail these issues on a per-move basis. I’ve emailed Gerd (2020-11-05)
A.Buchanan: Gerd has fixed this: announcement 2020-11-7: The solution engine now no longer plays moves with ambiguous move notation in order to ensure that unambiguous solutions are added.
Thanks so much, Gerd! (2020-11-08)
comment
Keywords: Unique Proof Game, Interchange (TT), Phoenix (TT)
Genre: Retro
Computer test: Natch 2.2 Copyright (C) 1997,98,99,2001,2002,2003 Pascal Wassong
FEN: qRRbk3/pb1ppp2/5p1n/8/3n3P/rrNpP3/1P1PNPp1/2BQKB2
Input: Gerd Wilts, 2004-06-03
Last update: Gerd Wilts, 2020-11-07 more...
66 - P1017633
Michel Caillaud
Nunspeet 2000
Preis
P1017633
(16+12)
BP in 15,0
Anticirce
1. e4 c6 2. e5 Da5 3. e6 Kd8 4. d3 Dc3 5. exd7[+wBd2] Lh3 6. d4 Sd7 7. d5 Tc8 8. d6 Tc7 9. dxe7[+wBe2] Se7 10. Sa3 Sg6 11. Sb5 La3 12. Sf3 Sdf8 13. Sg5 Te7 14. Sxh7[+wSb1] Th7 15. Sxa7[+wSg1] Sh8
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Zweifacher Platzwechsel (wBd2, e2 und wSS).
paul: Cook: 4.d4 Qc3 5.e×d7(Pd2) Bh3 6.Qh5 Sd7 7.d5 Rc8 8.d6 Rc7 9.d×e7(Pe2) Se7 10.Sf3 Sg6 11.Sd4 Ba3 12.Sb5 Sdf8 13.Qh6 Re7 14.Q×h7(Qd1) Rh7 15.S×a7(Sg1) Sh8. (2023-01-16)
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comment
Keywords: Circe (Anti-), Unique Proof Game, Interchange, Tempo Loss
Genre: Retro, Fairies
FEN: 3k1n1n/1p2rppr/2p5/8/8/b1q4b/PPPPPPPP/RNBQKBNR
Input: Gerd Wilts, 2004-07-14
Last update: Alfred Pfeiffer, 2014-06-30 more...
67 - P1038134
Wolfgang Berg
Mirko Degenkolbe

6472 Springaren 06/1989
2. Lob
P1038134
(5+8)
#4
1. Dh8! droht 2. Dc8+
1. ... a1=D+ 2. Txa1 h1=D 3. Lxh1 ... 4. Da8#
( 1. ... Ka7 2. Ld5 a1=D+ 3. Txa1 ... 4. Da8# )
play all play one stop play next play all
MD: 'Platzwechsel der drei weißen Eckensteher.'
(MD0088)

Es gab keinen Preise. Dafür 3 ehrende Erwähnungen und 3 Lobe.
Henrik Juel: Six threats after 1.Dh8 a1=D+ 2.Txa1, and thus several duals
The variations given are C+ Popeye 4.61 (2021-08-29)
comment
Keywords: Brian Stephenson Collection (23084), Interchange
Genre: n#
FEN: B7/3p4/kp6/1p6/bPp5/K7/p6p/Q6R
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2023-01-03 more...
68 - P1066742
Rustam Ubaidullajew
Retros mailing list 25/09/2004
1. Preis Sommerturnier 2003
P1066742
(8+12)
BP in 16,0
1. Sf3 d5 2. Tg1 d4 3. Sxd4 g5 4. Sb3 Dxd2+ 5. Lxd2 g4 6. Dc1 g3 7. Kd1 gxh2 8. Le1 h1=T 9. S1d2 Th2 10. Tb1 Txg2 11. Sa1 Txf2 12. Lg2 Txe2 13. Sf1 Txc2 14. Lxb7 Txb2 15. Lxa8 Txa2 16. Lh1 Td2+
play all play one stop play next play all
Moldenhauer: Computerprüfung: C+ Stelvio 1.4 in 17:01:03 Stunden.(hh:mm:ss) (2023-08-17)
comment
Keywords: Unique Proof Game, Phoenix (t), Interchange
Genre: Retro
FEN: 1nb1kbnr/p1p1pp1p/8/8/8/8/3r4/NRQKBNRB
Input: Gerd Wilts, 2004-09-30
Last update: Gerd Wilts, 2006-01-19 more...
69 - P1066752
Eric Pichouron
Retros mailing list 25/09/2004
5. Lob
Sommerturnier 2003
P1066752
(13+12) C+
BP in 16.5
1. h4 c5 2. h5 c4 3. h6 c3 4. hxg7 cxb2 5. Sc3 bxa1=T 6. La3 b5 7. Db1 b4 8. Kd1 b3 9. Kc1 b2+ 10. Kxb2 h5 11. De1 h4 12. Sb1 h3 13. Kc1 h2 14. Kd1 hxg1=L 15. Txh8 Lh2 16. Lc1 Lc7 17. gxf8=T+
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Henrik Juel: It obvious for the human solver to consider h6xPg7xLf8=T+ (so Lc7 is promoted) and c3xPb2xTa1=T
Not so Natch 3.1; no solution found after some 2 hours (2018-12-20)
Henrik Juel: I tried to test the first 16.0 moves, assuming that last move was f7xLf8=T+, with Euclide 1.01
The solution was found in less than 8 hours, and the testing was stopped after 11 hours, at pos. 73937 (2021-04-07)
A.Buchanan: How about eliminating the other three candidates for officer captured on f8? If that was done, might give more enthusiasm for pushing through with the L case. Also, I often find the demolition mode in Jacobi is good to run for a few minutes, to make sure I am not missing something “obvious”. (2021-04-08)
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comment
Keywords: Unique Proof Game, Promotion (tlT), Prenix (tl), Phoenix (T), Interchange (KD)
Genre: Retro
Computer test: Stelvio 1.4, 6:30min
FEN: rnbqkRnR/p1bppp2/8/8/8/8/P1PPPPP1/rNBKQB2
Input: Gerd Wilts, 2004-09-30
Last update: Reto, 2023-06-21 more...
70 - P1066789
Göran Wicklund
R259 Probleemblad 5 09-10/2004
5. Preis
P1066789
(16+11) C+
BP in 29,5
1. h4 Sc6 2. h5 Sd4 3. h6 Sb5 4. hxg7 h5 5. Th3 h4 6. Tg3 h3 7. a4 h2 8. a5 h1=D 9. a6 Dh2 10. axb7 a5 11. bxa8=T Lb7 12. Ta4 Lc6 13. Th4 a4 14. d4 a3 15. d5 a2 16. d6 a1=S 17. dxc7 Sb3 18. Ta1 Sa3 19. c8=T La4 20. Ta8 Db8 21. f4 Kd8 22. f5 Kc7 23. f6 Kb6 24. fxe7 Sf6 25. e8=T Ld6 26. Tc8 Te8 27. g8=T Te7 28. Tge8 Lc7 29. Tgg8 Dd6 30. Th1
play all play one stop play next play all
Zyklischer Platzwechsel sechs weißer Türme.
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comment
Keywords: Unique Proof Game, Non-standard material, Interchange (TTTTTT), Impostor (TT)
Genre: Retro
Computer test: Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:05:59 Minuten. (hh:mm:ss) keine Lösung: BP 28.5, BP 29.0.
FEN: RqR1R1R1/2bprp2/1k1q1n2/8/b7/nn6/1PP1P1P1/RNBQKBNR
Reprints: (18) StrateGems 10-12/2007
(80) Die Schwalbe 250A 08/2011
Input: Gerd Wilts, 2004-10-17
Last update: Silvio Baier, 2023-08-15 more...
71 - P1066916
Heinz Zander
Peter Kniest

6382 Schach-Echo 01/1971
P1066916
(10+8) C+
s#5
1. Dh3 e6 2. Lf1 exd5 3. Dd7 d4 4. Dc7 d3 5. Dc4 d2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-04-28)
comment
Keywords: interchange in mating position (DL)
Genre: s#
FEN: 3N4/4p1p1/k5P1/1n1PP3/bPB5/2p2p2/2p2B2/R1K2Q2
Input: Frank Müller, 2004-11-01
Last update: Marcin Banaszek, 2021-04-28 more...
72 - P1067417
Unto Heinonen
Springaren 87, p. 184-190, 12/2001
1. Preis Springaren Summer Tourney 2001
P1067417
(16+16)
BP in 23,0
1. e4 Sc6 2. Le2 Se5 3. Lh5 Sg6 4. Ke2 f5 5. Kf3 f4 6. Kg4 a5 7. Sf3 Ta6 8. Te1 Tc6 9. Te3 b6 10. Td3 La6 11. Td6 Le2 12. Tf6 e6 13. d3 La3 14. b4 Tc3 15. Lb2 Tb3 16. Le5 S8e7 17. Sc3 Tb1 18. Dd2 Tf1 19. Te1 Ld1 20. Te2 Sc6 21. Sg5 Sb8 22. Sf7 Se7 23. Dc1 Sg8
play all play one stop play next play all
Judge: Kjell Widlert
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comment
Keywords: Unique Proof Game, Interchange (ss), Capture-free
Genre: Retro
FEN: 1n1qk1nr/2pp1Npp/1p2pR2/p3B2B/1P2PpK1/b1NP4/P1P1RPPP/2Qb1r2
Reprints: feenschach 153 10-12/2003
H64 FIDE Album 2001-2003 2011
Input: Gerd Wilts, 2005-01-09
Last update: A.Buchanan, 2021-05-08 more...
73 - 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
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5zügiger Rundlauf der wD und Platzwechsel der wSS.
Reto: A lot faster with Stelvio 1.25, finished in about 1min. (2023-05-29)
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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...
74 - P1068639
Roberto Osorio
Jorge Joaquin Lois

1961 Orbit 32 10/2006
Nicolas Dupont gewidmet
3rd Prize
P1068639
(15+13) C+
BP in 20,0
1. Sc3 Sc6 2. Sd5 Tb8 3. Sxe7 Kxe7 4. a4 Kf6 5. a5 Kg6 6. a6 Dh4 7. axb7 Sf6 8. bxc8=S Tb3 9. h3 Lb4 10. Sd6 Te8 11. Sf5 Tee3 12. Sg3 Se5 13. f4 Tf3 14. e4 Tf2 15. S1e2 Tbf3 16. Sc3 c6 17. d3 Td2 18. Sb1 Tff2 19. Se2 Kh5 20. Sg1+ Tfe2#
play all play one stop play next play all
Henrik Juel: Sb1 is actually [Sg1], and Sg1 is [Pa2] promoted on c8.
Testing with Euclide ran out of time. (2011-02-27)
paul: The first 19 moves checked by Euclide in half a day. (2020-12-02)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0 01:04:22 Stunde. (hh:mm:ss)
Keine Lösung: BP 19.0, BP 19.5. (2023-03-02)
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comment
Keywords: Unique Proof Game, Interchange
Genre: Retro
Computer test: Stelvio 1.0
FEN: 8/p2p1ppp/2p2n2/4n2k/1b2PP1q/3P3P/1PPrr1P1/RNBQKBNR
Reprints: H30 Vkontakte 2013
H30 Phénix 261/262, p. 10353, 05-06/2016
Input: Gerd Wilts, 2006-12-05
Last update: Silvio Baier, 2023-03-03 more...
75 - P1070008
Roberto Osorio
Jorge Joaquin Lois

13821 Die Schwalbe 232 08/2008
P1070008
(13+15) C+
BP in 20.5
1. h4 c5 2. Th3 Db6 3. Tb3 Dxb3 4. a3 Da2 5. Sc3 Db1 6. Sh3 Dxc1 7. Dxc1 d6 8. Db1 Sd7 9. Da2 Sdf6 10. 0-0-0 Kd7 11. Da1 Ke6 12. Kb1 Kf5 13. Ka2 Kg4 14. Kb3 Lf5 15. Da2 Tc8 16. Ta1 Tc6 17. Db1 Tb6+ 18. Ka2 Tb3 19. Dd1 b6 20. Sb1 Txh3 21. g3
play all play one stop play next play all
zweifacher Platzwechsel von Dd1 und Ta1, Rückkehr Sb1
Henrik Juel: The double interchange (Lois theme) is a challenge for solvers
Natch 3.1 did little in an hour
Stopped at pos. 5 (2018-12-26)
Moldenhauer: Computerprüfung: C+ Stelvio 1.2 127:03:03 Stunden. (hhh:mm:ss)
Keine Lösung: BP 19.5, BP 20.0 22:17:49 Stunden. (2023-05-18)
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comment
Keywords: Unique Proof Game, Interchange (DT x2), Switchback (S), Lois Theme (DT), Castling
Genre: Retro
Computer test: Stelvio 1.2
FEN: 5bnr/p3pppp/1p1p1n2/2p2b2/6kP/P5Pr/KPPPPP2/RN1Q1B2
Input: Gerd Wilts, 2008-09-05
Last update: Silvio Baier, 2023-08-15 more...
76 - P1080525
Andrey Frolkin
Kostas Prentos

P0190 StrateGems 34 2006
1. Lob
P1080525
(14+12) C+
BP in 26,5
1. f4 h5 2. f5 h4 3. f6 h3 4. fxe7 hxg2 5. exf8=L Th3 6. Lc5 Tg3 7. Lb6 axb6 8. h4 Taa3 9. h5 Tac3 10. bxc3 Dh4 11. La3 f6 12. Lf8 d6 13. h6 Lf5 14. h7 Ld3 15. exd3 Kf7 16. Df3 Kg6 17. Se2 g1=S 18. h8=T Sh3 19. Th5 Sf4 20. Tb5 Se6 21. Tb2 Db4 22. Th8 Sh6 23. Dg2 Kh5 24. Sc1 g6 25. Lg7 c5 26. Tf8 Sf7 27. Lh8
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 38 (2018-12-25)
Henrik Juel: Stelvio 1.31 used 18 seconds on my PC (2023-06-13)
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comment
Keywords: Anti-Pronkin (TL), Ceriani-Frolkin Theme (L), Unique Proof Game, Non-standard material, Interchange (LT), Promotion (LsT)
Genre: Retro
Computer test: KP: C+ Stelvio 1.0 (14 seconds)
FEN: 1n3R1B/1p3n2/1p1pnpp1/2p4k/1q6/2PP2r1/PRPP2Q1/RNN1KB2
Input: Gerd Wilts, 2009-01-10
Last update: A.Buchanan, 2023-03-20 more...
77 - P1080606
Michel Caillaud
Andernach TT 2006
1. Platz
P1080606
(13+12) cooked
BP in 11,0
take&make
1. b4 a5 2. b5 Ta6 3. bxa6[-wBa6,+wSa8] Sf6 4. Sxc7[-wSc7,+wSc6] dxc6[-sBc6,+sBa7] 5. h3 Lg4 6. hxg4[-wBg4,+wDc8] Sc6 7. De6 Dc7 8. Dd6 exd6[-sBd6,+sBd7] 9. a3 Lb4 10. axb4[-wBb4,+wLf8] Kd8 11. Lb4 axb4[-sBb4,+sBe7]
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Cook: Cooked by Michel Caillaud using Jacobi demolition mode with constraints :
1.b4 c5 2.bxç5-ç4 d5 3.h3 Lg4 4.hxg4-c8=D Sc6 5.Dxa8-b8 Sf6 6.Dd6 exd6-d7 7.a3 Lb4 8.axb4-f8=L Dc7 9.Lb4 dxc4-ç5 10.Ta2 Kd8 11.Ta1 cxb4-e7
paul: The first 7 moves tested by WinChloe in 2 hours. (2019-12-15)
Henrik Juel: Jacobi 0.7.5 in Heuristic and PG demolition mode did not find the intended solution using more than 10 hours
The best attempt was 1.a4 e6 2.a5 La3 3.bxa3-f8=L Sc6 4.Ld6 cxd6-e7 5.a6 Dc7 6.axb7-b5 La6 7.bxa6-b7 Sf6 8.bxa8-d8=S Kxd8-b7 9.h3 Kc8 10.h4 Kd8 11.h5
Note the natural notation of the Take&Make moves, far better than something like 3.bxa6[-wBa6,+wSa8], which should be written as 3.bxa6-a8=S (2021-10-23)
A.Buchanan: I will copy Gerd Wilts on your notation suggestion, which doesn't work quite now here but might be made to work - I agree it's superior. (2021-10-24)
Nightrider: What a pleasure to read this! I invented take&make, and I used the natural notation (like "bxa8-d8S") right from the beginning. Isn't it ideal if readers may understand the idea of a condition immediately by the notation of the moves?

By the way, the same holds for the (much more recent) condition make&take, where a move of a wSc3 that captures a bBg8 (for example) should be written analogously as S-f6xg8. Here again, does this natural notation not make clear on the spot what the basic idea of make&take is?

(And does it not look MUCH more elegant, for both conditions, if they are written in small letters exclusively and without blanks around "&" ? For me, it was always take&make and (years later) make&take. But, de gustibus non est disputandum...) (2021-10-24)
A.Buchanan: Hi Nightrider, thanks for kind words. I did email Gerd directly after the earlier post. He's pretty busy at the moment but in a few months thinks will have more time to deal with some items on the backlog.
For names, I agree that syntax varies. Sometimes it's down to taste, more often it's just random noise. There's also the question of "&" versus "and". (StrateGems uses both in one page!) In German, nouns are always capitalized, and the rest of PDB inherits that kind of uniformity, with the idea that PDB is just applying a local pattern, not trying to be authoritative in promoting a "canonical" way of writing each term. WinChloe has similar policy: Take & Make. YACPDB has Take&MakeChess. Search engines divide up words into atoms, so when I ask google for take&make I get "Take & Make" & "Take&Make" almost equally, so Google is blind to the distinct form that you prefer. Sorry. (2021-10-24)
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comment
Keywords: Unique Proof Game, take&make Chess, Interchange, Ceriani-Frolkin Theme (DLS), Homebase (w)
Genre: Retro, Fairies
FEN: 3k3r/ppqppppp/2n2n2/8/8/8/2PPPPP1/RNBQKBNR
Reprints: (22) Mat Plus Review 13-14 08/2010
Input: Gerd Wilts, 2009-01-14
Last update: A.Buchanan, 2022-01-13 more...
78 - P1080625
Roberto Osorio
Jorge Joaquin Lois

R133 Problem Paradise 01-03/2006
P1080625
(13+15) C+
BP in 19,5
1. d4 Sc6 2. Dd3 Tb8 3. Da6 bxa6 4. Sf3 Tb5 5. Sh4 Th5 6. Sf5 d5 7. Sh6 gxh6 8. g4 Lg7 9. g5 Le5 10. g6 Sf6 11. g7 Sd7 12. g8=S Sdb8 13. Sf6 exf6 14. dxe5 Se7 15. e6 Sg8 16. e7 Kd7 17. e8=D+ Kd6 18. Da4 Ld7 19. c3 Le8 20. Dd1
play all play one stop play next play all
paul: This PG (with bBe8) was ranked first (judge K. Prentos) (2020-12-01)
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comment
Keywords: Unique Proof Game, Interchange (ss), Pronkin Theme (D), Ceriani-Frolkin Theme (S), Promotion (SD)
Genre: Retro
Computer test: C+ Natch 3.1 No solution for 19.0 moves
FEN: 1n1qb1nr/p1p2p1p/p2k1p1p/3p3r/8/2P5/PP2PP1P/RNBQKB1R
Input: Gerd Wilts, 2009-01-17
Last update: A.Buchanan, 2021-02-20 more...
79 - P1081517
Julius Buchwald
U.S. Problem Bulletin 1965
ehr. Erw.
P1081517
(6+2) C+
s#5
1. Tg5 g6 2. Th5+ gxh5 3. Sd3 h4 4. Le1 h3 5. Sf2 hxg2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-07-07)
comment
Keywords: Ideal mate, Interchange (SL), Minimal
Genre: s#
FEN: 8/6p1/6R1/8/8/8/4NBBk/4NK2
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2021-07-15 more...
80 - P1081611
Hans Peter Rehm
S1028v The Problemist 05/1985
1. Preis
P1081611
(6+8) cooked
s#8
1. Lc7? droht 2. Db5+ Sxb5#
1. ... d3 2. Le5 c2!

1. De7+! Kc6 2. Ld7+ Kd5 3. De6+ Kc5 4. Lc7 Sd2 5. De7+ Kd5 6. Le6+ Kc6 7. Dd7+ Kc5 8. Db5+ Sxb5#
play all play one stop play next play all
FA=8 logisch, Platzwechsel

Original (ohne sBa7) mit NL in 6 Zügen.
Korrektur des Autors (+sBa7) in 11/1985, Seite 106.
Cook: NL 1. Lf6! droht 2. Db5+ Kd6 3. Dd5+ Kc7 4. Le5+ Kb6 5. Db7+ Kc5 6. Db5+ Sxb5#
1. ... Kb6? 2. Db7+ Kc5 3. Le5 ... 4. Db5+ Sxb5#
Rolf Wiehagen: Valery Kirillov points out that the problem can be corrected by wBd8--a5, C+. (2020-10-01)
Gerald Ettl: In meiner Datenbank steht als Verbesserung sBa7 nach g7. Allerdings weiss ich nicht, ob das C+ ist. (2020-10-02)
Rolf Wiehagen: Valery Kirillov points out that bPa7 to g7 is cooked, in 7 moves:
1.De7+ Kc6 2.Ld7+ Kd5 3.De6+ Kc5 4.Lc7 Sd2 5.Db6+ Kd5 6.Db7+ Kc5 7.Db5+ Sxb5# (2020-10-26)
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comment
Keywords: Interchange (DL)
Genre: s#
FEN: 3B4/p2Q4/P3B3/2k5/K2pp3/nPp5/8/rn6
Reprints: 595 FIDE Album 1983-1985 1992
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2023-11-03 more...
81 - P1081700
Cyril P. Swindley
2497 feenschach 1978
P1081700
(9+7) C+
s#6
1. Dg6 Lxg2 2. Dh6+ Lh3 3. Sfxg4 g2 4. Sd5 cxd5 5. d3 c6 6. Dd2 Lxg4#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-11-11)
comment
Keywords: Interchange (DB)
Genre: s#
FEN: 8/2p5/2p2N2/2P5/3P2p1/3QN1pb/3PK1R1/4R1bk
Input: HBae, 2009-02-06
Last update: Marcin Banaszek, 2020-11-12 more...
82 - P1082932
Ivan Bryukhanov
6630 Problemkiste 04/2006
P1082932
(4+2)
s#8
Längstzüger
1. Kc2 La3 2. Kb3 Lf8 3. Df6+ Kb1 4. Tc1+ Kxc1 5. Ka2 La3 6. Ka1 Lf8 7. La2 La3 8. Db2+ Lxb2#
play all play one stop play next play all
Anton Baumann: C+ Alybadix (2021-11-12)
comment
Keywords: Ideal mate, Maximummer, Interchange (Kk)
Genre: Fairies
FEN: 2R2bB1/8/6Q1/8/8/8/8/k1K5
Input: HBae, 2009-02-06
Last update: Gerd Wilts, 2023-05-11 more...
83 - P1083301
Iwan O. Brjuchanow
7105 Problemkiste 177 06/2008
P1083301
(4+2)
s#5
Circe
1. Kb3 c6 2. Kc2 Ka2 3. Da3+ Kxa3[+wDd1] 4. Kb1 c5 5. Ka1 c4 6. Db3+ cxb3[+wDd1] 7. Lb1 b2#
play all play one stop play next play all
SCHRECKE: Das ist ein s#7, Circe
C+, popeye 3.61 (2021-08-24)
comment
Keywords: Circe, Interchange (Kk)
Genre: Fairies
Computer test: Popeye WINDOWS-32Bit V4. 37
FEN: 8/2p4B/8/2Q5/7R/K7/8/k7
Input: HBae, 2009-02-06
Last update: Arnold Beine, 2017-10-31 more...
84 - P1084240
James Soliman
P0244 StrateGems 46 04-06/2009
P1084240
(15+14)
BP in 13.0
1. c4 d5 2. Da4+ Sd7 3. Dc6 Sgf6 4. a4 Se4 5. Ta3 Sec5 6. Tf3 Sa6 7. d3 Sab8 8. Lh6 gxh6 9. g3 Lg7 10. Lh3 0-0 11. Txf7 Sf6 12. Lxc8 Kh8 13. g4 Sg8
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (8 s)
No solution in 12.5 (2018-12-27)
A.Buchanan: Good that you are checking for n-0.5. But why not check for n-1.0 & n-1.5: then it is certain that there is no shorter PG. (2018-12-27)
Henrik Juel: Good to hear from you again, Andrew
I started my Christmas testing project a couple of weeks ago
After testing lots of proof games in n, and making sure that n-.5 or n-1 moves had no solution, I noticed that in that sample n-1 moves never produced a solution, so, being a lazy slob, I now only check n-.5
Even your suggestion is not sufficient, as there exist constructed proof games with unique solutions in n and n plus several moves, but with 'regular' problems I believe that checking n-.5 almost always suffices
So far I have found a handful of cooks and just one example of a shorter solution than stipulated (2018-12-27)
A.Buchanan: If there is a solution in n moves, there are many solutions in n+2.0 moves: that is definite.
A reason for mindlessly testing as n-1.5,n-1.0,n-0.5 before testing for n is that one can catch many (but not all) cooks more easily.
From the solution in n, one can then see whether there might be the chance of an interesting solution in n+k, where k is not a multiple of 2.0. (2018-12-28)
more ...
comment
Keywords: Unique Proof Game, Interchange (ss)
Genre: Retro
FEN: rnBq1rnk/ppp1pRbp/2Q4p/3p4/P1P3P1/3P4/1P2PP1P/1N2K1NR
Input: Gerd Wilts, 2009-04-03
Last update: A.Buchanan, 2023-12-24 more...
85 - P1085398
Jorge Joaquin Lois
Roberto Osorio

13285 Die Schwalbe 223 02/2007
2. Preis
P1085398
(14+15) C+
BP in 26,5
1. e4 a6 2. Lb5 axb5 3. h4 Ta3 4. h5 Th3 5. a4 c5 6. a5 c4 7. a6 c3 8. dxc3 h6 9. Lg5 hxg5 10. a7 Th6 11. a8=L Ta6 12. h6 b6 13. Ld5 Ta8 14. Lc4 d5 15. h7 Lf5 16. h8=L Lh7 17. Sf3 g6 18. 0-0 Lg7 19. Te1 Kf8 20. Lf1 De8 21. c4 Lc3 22. b3 La5 23. Lb2 Sf6 24. Dd4 Lg8 25. Sd2 Th8 26. Tad1 Sh7 27. Lc1
play all play one stop play next play all
Henrik Juel: Natch 3.1 did little in half an hour
Stopped at pos. 4 (2018-12-26)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 00:28:13 Minuten. (hh:mm:ss)
Keine Lösung: BP 25.5, BP 26.0. (2023-04-06)
more ...
comment
Keywords: Unique Proof Game, Pronkin Theme (LL), Interchange (tt), Promotion (LL), Castling
Genre: Retro
Computer test: Stelvio 1.11
FEN: rn2qkbr/4pp1n/1p4p1/bp1p2p1/2PQP3/1P3N2/2PN1PP1/2BRRBK1
Reprints: 74 Die Schwalbe 250A, p. 258, 08/2011
Input: Gerd Wilts, 2009-06-08
Last update: Silvio Baier, 2023-08-15 more...
86 - P1088930
Ivan Soroka
254 Uralskije jubiljary 1997
Alexej Iwunin 50 JT
Lob
P1088930
(11+3) C+
s#6
1. Lf6 Lxf6 2. h8=D+ Ke7 3. Df8+ Ke6 4. d8=S+ Lxd8 5. Df5+ Ke7 6. La4 c6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-05)
comment
Keywords: interchange in mating position (kl), konsekutive Umwandlungen 2
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 3k4/2pPb1PP/P1B5/K1P5/1P3PP1/8/8/B7
Input: Frank Müller, 2009-07-17
Last update: Marcin Banaszek, 2021-02-12 more...
87 - P1090155
Michael Schreckenbach
Manfred Zucker

7857 Die Schwalbe 137 10/1992
P1090155
(7+3) C+
s#8
1. Td2 e4 2. Ta7+ Kb1 3. Db3+ Lb2+ 4. Td4 Kc1 5. Ta1+ Lxa1 6. Dd1+ Kb2 7. Td3 exd3 8. Dc1+ Kxc1#
play all play one stop play next play all
(MZ812)

Vergleiche P1260055 (MZ764)
Sally: Alle 3 weiße Schwerfiguren werden geopfert.
Die Schwalbe 141, p. 264 Juni 1993. (2016-12-12)
SCHRECKE: Das ist mein Erstling mit MZ.
Als Löser konnte ich P1260055 nicht bewältigen und ich dachte, dass diese verdruckt wäre, als ich die leicht veränderte Stellung mit achtzügiger Lösung fand. (2021-04-10)
more ...
comment
Keywords: Batterieerzwingung, interchange in mating position (kl), Sacrifice of white pieces
Genre: s#
Computer test: S.B. Dowd: Gustav 3.2 d
FEN: 6BK/1R5P/8/4p3/8/4P3/1R6/k1bQ4
Input: Frank Müller, 2009-08-18
Last update: Felber, Volker, 2021-04-09 more...
88 - P1096849
Misha Shapiro
Probleemblad 07-08/2004
Gerard Bouma 80 JT
3. Lob
P1096849
(11+9) C+
s#6
1. Kc6 Ka8 2. Kc7+ Ka7 3. Kc8+ Ka6 4. Lxb4+ Kb6 5. Kb8 cxb4 6. Dxe7 Sxe7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-19)
comment
Keywords: Batteriematt horizontal, interchange in mating position (KK)
Genre: s#
FEN: 1k4nr/3Qp2p/1K2Pp1p/B1p2P1P/1pP5/1P3B2/RP6/8
Input: Frank Müller, 2009-12-27
Last update: James Malcom, 2021-02-19 more...
89 - P1107589
Erich Bartel
1366 feenschach 25 10/1974
P1107589
(8+11)
s#6
Längstzüger
1. Td5-d3! (Zugzwang) d7-d5 2. Dd1-f1 (Zugzwang) d5xe4 3. Tf5-d5 (Zugzwang) e4xd3 4. Df1-f5 (Zugzwang) d3xe2 5. Td5-d1 (Zugzwang)
5. ... e2xd1=S 6. Df5-f2 Sd1xf2#
5. ... e2xd1=T 6. Df5-d3 Td1-h1#
5. ... e2xd1=D 6. Df5-d7 Dd1xd7#
5. ... e2xd1=L 6. Df5-c2 Ld1-g4#
play all play one stop play next play all
t/Korrespondenzfigur wD
SCHRECKE: C+, popeye 4.85 (2021-01-12)
comment
Keywords: Allumwandlung, Excelsior, Interchange ((DT)), Maximummer
Genre: Fairies
FEN: 5kN1/3p1np1/8/3R1Rpp/4P2b/2p1p1pK/1p2P1P1/3Q4
Input: Erich Bartel, 2010-06-10
Last update: Alfred Pfeiffer, 2016-02-11 more...
90 - P1107896
Erich Bartel
1974 Gazeta Czestochowska 1976
1.e.Erw., Richter: Saturnin Limbach
P1107896
(9+6)
s#7
Längstzüger
1.Se3 g\x f4
2.Lb3 g5
3.Ta2 Lxd6
4.Da8+ Lb8
5.Sg2 fxg3
6.Ld1 ex d1DTLS
7.Td7/Td2/Tc2/Tf2+ Dxd7/Th1/Lg4/Sxf2\#
play all play one stop play next play all
t/Allumwandlung, t/Platzwechsel DTLS, t/Korrespondenzfiguren wTT;
Anton Baumann: NL: 1.Lb3 gxf4 2.Se3 g5 3.Ta2 ... usw. gem. Autorabsicht
1. ... exd1=L 2.Lxd1 gxf4 3.Th8+ Kf7 4.Lb3+ Kg6 5.d7 Le5 6.Kh4 La1 7.Dh3 Lf6#
ähnlich 1.Lf7 mit vielen Dualen (2021-12-07)
comment
Keywords: Allumwandlung, Maximummer, Interchange ((DTLS))
Genre: Fairies
FEN: Rb3k2/6pR/3P4/6pp/5P2/6PK/B3p1Q1/3N4
Reprints: 164 206mal Allumwandlung 1991
Input: Erich Bartel, 2010-06-17
Last update: Erich Bartel, 2010-06-17 more...
91 - P1112304
Hans Moser
4579 feenschach 75 09-10/1985
5. ehrende Erwähnung
P1112304
(5+8) C+
ser-h=9 Circe
1. Lc5 2. Lg1 3. Dxh1[+wDd1] 4. Dg2 5. Lh2 6. Dgxf3[+wTh1] 7. Df8 8. Da3 9. b4 Df3=
play all play one stop play next play all
Informalturnier 1985 Circe, Preisrichter Hans Peter Rehm, Preisbericht fs-90, S.31.
Originelle Platzwechsel bei Schwarz und Weiß(!) im Serienzüger (PR H.P.Rehm).
more ...
comment
Keywords: Circe, Interchange (TDld), Seriesmover
Genre: Fairies
Computer test: Alybadix
FEN: 8/8/8/1p6/p6p/bp3Rnk/BN5q/4K2Q
Reprints: feenschach 90 01-04/1989
I mpk-Blätter 09/2015
Input: HBae, 2010-08-04
Last update: Arnold Beine, 2022-11-03 more...
92 - P1112938
Dirk Borst
Andernach TT 2006
2. Platz
P1112938
(12+16) cooked
BP in 14
take&make
1. a4 e5 2. Ta3 Lxa3[-wLa3,+sLh3] 3. d3 d5 4. Lh6 gxh6[-sBh6,+sLc1] 5. e3 Sd7 6. Le2 Sb6 7. Lh5 Lcg4 8. Se2 Db8 9. 0-0 Lxb2[-sLb2,+sLb4] 10. Sf4 Lxd1[-sLd1,+sLc1] 11. Td1 Lc8 12. g4 Kf8 13. Kg2 Kg7 14. Kh3 Lf8
play all play one stop play next play all
Michel Caillaud: cooked using Jacobi0.7.5 and constraints :
1.a4 e5 2.Ta3 d5 3.Sh3 Sd7 4.d3 Sb6 5.Lh6 gxh6(c1=L) 6.e3 Lg4 7.Sf4 Lxd1(Lg4) 8.Le2 Db8 9.Kf1 Lc8 10.Lh5 Lxa3(Lc3) 11.g4 L3xb2(Lb4) 12.Kg2 Kf8 13.Td1 Kg7 14.Kh3 Lf8 (2021-05-26)
comment
Keywords: Unique Proof Game, Interchange, take&make Chess
Genre: Retro, Fairies
FEN: rqb2bnr/ppp2pkp/1n6/3pp2B/P4NP1/3PP2K/2P2P1P/1NbR4
Reprints: (23) Mat Plus Review 13-14 08/2010
Input: Gerd Wilts, 2010-08-15
Last update: Arnold Beine, 2021-05-27 more...
93 - P1132559
Reto List
Markus Johannes Ott

Basellandschaftliche Zeitung 1979
R. Mäser gewidmet
P1132559
(5+2) C+
#3
1. Lh3 f3 2. g4 f2 3. Lg2#
play all play one stop play next play all
B12L ZP3L PT-LB B3a m
more ...
comment
Keywords: Miniature Collection (0340563), Minimal, Miniature, Interchange (wL-wB)
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/5N2/8/3N4/2K1kpB1/8/6P1/8
Reprints: 172 Schweizer Schachkompositionen 1976-1986 , p. 65, 1989
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2022-09-09 more...
94 - P1145947
F. C. Glass
269 The Boy's Own Paper 13 20/06/1891
P1145947
(3+1) C+
#4
b) wTc4->g4
a) 1. Kf1! Kd2 2. Kf2 Kd1 3. Ke3 Ke1 4. Tc1#
b) 1. Kd1! Kf2 2. Kd2 Kf1 3. Ke3 Ke1 4. Tg1#
play all play one stop play next play all
m16 e113
vf: Werner Speckmann, 11.1955, Die Schwalbe (267.268), #10197
Felber, Volker: Im Nachdruck der SSZ ist b) nicht angegeben (2013-10-26)
Gerald Ettl: In Emil Ramin -Im Wunderland des Schachproblems- heisst der Autor E. Glass (2021-08-04)
comment
Keywords: Miniature Collection (0077091), Miniature, Interchange (Kk)
Genre: n#
Computer test: Popeye 4.83
FEN: 8/8/8/8/2R5/4k3/4P3/4K3
Reprints: 10 Schachminiaturen - Neue Folge 1903
260 Schweizerische Schachzeitung , p. 120, 06/1903
6 Der Führer 04/02/1940
34 Razem 1984
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2023-11-02 more...
95 - P1150266
H. Bangert
Die Sendung 10/03/1934
P1150266
(4+2)
#4
b) wTc7->g7
1. Kf4 Kd5 2. Kf5 Kd4 3. Ke6 Ke4 4. Tc4#
play all play one stop play next play all
m16 m
vf: Nikolai Parschenzew, 10.03.1992, Problemist pribuschja, (a)
Henrik Juel: C+ Popeye 4.61 (2023-11-02)
Henrik Juel: b) 1.Kd4 Kf5 2.Kd5 Kf4 3.Ke6 Ke4 4.Tg4# (2023-11-02)
comment
Keywords: Miniature Collection (0334314), anticipated (P1145947), Interchange (Kk)
Genre: n#
FEN: 8/2R5/4k3/4P3/4K3/4p3/4P3/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2023-11-02 more...
96 - P1175766
Werner Speckmann
52 Westfälische Landeszeitung 09/10/1937
P1175766
(4+3) C+
#4
1. Kh7 Kf7 2. Th8 Ke7 3. Kg8 Kd8 4. Kf7#
play all play one stop play next play all
Nur in Notation publiziert, die Zeile für Schwarz fehlt.
A18a2 PT-KT
ND Schwalbe 09-10/1953, Seite 114 mit Quelle 'Rote Erde, 09/1937'
udo.de: erschien mit Diagramm am 4.9. 1937 (die Lösungsbesprechung mit Wiederholung der Stellung in Notation war am 9.10. 1937 erschienen) (2024-03-26)
more ...
comment
Keywords: Miniature Collection (0088288), Interchange, Miniature, anticipated (P1322551)
Genre: n#
Computer test: H. Juel: Popeye 4.61
FEN: 6RK/2p1k3/2B1p3/4P3/8/8/8/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2023-07-27 more...
97 - P1176593
Gunter Jordan
13847 Schach 07/1997
P1176593
(4+4) C+
s#5
1. Sd3 e5 2. De1+ Kc2 3. Sf2 e4 4. Db4 e3 5. Db2+ axb2#
play all play one stop play next play all
more ...
comment
Keywords: Interchange
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/8/4p3/8/1N1p4/p7/P4Q2/K2k4
Input: Frank Müller, 2010-09-16
Last update: Arnold Beine, 2021-04-03 more...
98 - P1176610
Gunter Jordan
347 harmonie 09/1997
3. Lob
PR Manfred Seidel
P1176610
(9+5) C+
s#5
1. La2 a6 2. Sd5 axb5 3. Tf1 b4 4. Tf6 b3 5. Lb1 b2#
play all play one stop play next play all
more ...
comment
Keywords: Corner mate, Pawn mate, Interchange (zyklisch LST)
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/p5B1/5N1P/pP1B4/p7/k2pP3/3P4/KR6
Input: Frank Müller, 2010-09-16
Last update: Arnold Beine, 2021-04-04 more...
99 - P1179555
Frank Müller
17090 Schach 11/2010
3. ehrende Erwähnung
P1179555
(4+3) C+
s#12
Sofortiges 1. Dg2+? hxg2+ scheitert an 2. Kh2
1. T4e2+! Kf3 2. Dh5+ Kg3! 3. Tg1+ Kf4 4. Tg4+ Kf3 5. Tge4+ Kg3 6. T2e3+ Kf2 7. Dh4+ Kf1 8. Te1+ Sxe1 9. Df6+ Sf3 10. Da6+ Kf2 11. De2+ Kg3 12. Dg2+ hxg2#
2. ... Kf4? 3. T2e4+ Kg3 4. T1e3+ (Bahnung der wTT) Kf2 5. Dh4+ Kf1 6. Te1+ Sxe1 7. Df6+ Sf3 8. Da6+ ist zwei Züge schneller
Erstdarstellung des Platzwechsels zweier wTT in der Selbstmattminiatur.
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2021-02-13)
comment
Keywords: Interchange (TT), Miniature
Genre: s#
FEN: 8/8/6Q1/8/4R3/3n3p/5k2/4R2K
Reprints: Schach , p. 81, 03/2019
Input: Frank Müller, 2010-11-04
Last update: James Malcom, 2021-02-13 more...
100 - P1183600
Thierry Le Gleuher
diagrammes 167 2008
P1183600
(16+14) C+
BP in 20
1. Sf3 f5 2. Se5 f4 3. Sxd7 f3 4. Sb6 Dd5 5. Sxa8 Kd7 6. Sc3 Kc6 7. Se4 Kb5 8. Sg5 Ka4 9. Sh3 b5 10. Sg1 Lh3 11. Tb1 e6 12. Ta1 Lc5 13. Tb1 Lb6 14. Ta1 c5 15. Sc7 Se7 16. Se8 Tf8 17. Sd6 Tf5 18. Sc4 Th5 19. Sa3 g5 20. Sb1 Sg6
play all play one stop play next play all
paul: H27, Album FIDE 2007-09 (2022-04-06)
more ...
comment
Keywords: Unique Proof Game, Homebase (W), Pendulum (T x4), Interchange (SS), Initial Game Array (W)
Genre: Retro
Computer test: Euclide 0.93, ©2000-2002 Étienne Dupuis
FEN: 1n6/p6p/1b2p1n1/1ppq2pr/k7/5p1b/PPPPPPPP/RNBQKBNR
Input: Gerd Wilts, 2010-12-30
Last update: James Malcom, 2023-05-02 more...
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