Chess Problem Database Server

185 problem(s) found in 3815 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Rückkehr' AND NOT CPLUS ] [download as LaTeX]

1 - P0001622
Christian Poisson
491b Europe Echecs 355/356 07-08/1988

(3+11)
shc#11

1. Lf1 2. Kh3 3. Kh4 4. Lh3 5. fxg3ep 6. Kh5 7. Kg6 8. Kf7 9. Ke8 10. 0-0-0 11. Td7 a8=D#
play all

The cluster of tries: Kh2-g1-f1-e1-d2-...-e8 0-0-0 Td7 is 12 moves: just too long.
In the diagram, e.p. is not permitted because last move might be g3-g4. So first shift sK to h4. Following the e.p., check that wK does now have prior move: Kf4-f3. Now sK scampers to e8 where through consequent forgetfulness it recovers castling rights.

more ...
comment

Keywords: En passant, Castling (sg), Seriesmover, Consequent, Valladao Task, Promotion in the mating move (D), Switchback (l), Promotion (D), Königswanderung
Genre: Retro, Fairies
FEN: r7/P1p5/pp6/5pp1/5pP1/5K1b/4rp1k/8
Input: Gerd Wilts, 1995-06-03
Last update: James Malcom, 2021-09-14 more...

2 - P0559171
Boris Ostruh
(46) Problem 08/1974
ehrende Erwähnung
57. Thematurnier

(12+10)
h#23
0.1...

1. ... Txh6+ 2. Dxh6+ Dxh6 3. Kxh6 c5 4. Lxg1 Kxg1 5. Kg7 Kh1 6. Kf8 Kg1 7. Ke8 Kh1 8. Kd8 Kg1 9. Kc8 Kh1 10. Kb7 Kg1 11. Ka6 Kh1 12. Kb5 Kg1 13. Kxc5 Kh1 14. Kd4 Kg1 15. c5 Kh1 16. c4 Kg1 17. c3 Kh1 18. c2 Kg1 19. c1=D Kh1 20. Dc6 Kg1 21. Dd7 exd7 22. Kxe4 d8=D 23. Kf4 Dd4#
play all

PAS-Läufer-Hilfsmatt (ab dem 5. Zug)

Ladislav Packa: Illegal position of Rh6. (2016-11-22)
Henrik Juel: Position seems legal to me
Last move either Kh5-g6+ or h4xg3+ (2016-11-22)
Anton Baumann: C+ Gustav 4.1d (2021-03-27)
comment

Keywords: Promotion (Dd), Round Trip (b), Rückkehr nach Umwandlung, Switchback (K), Antiphönix, konsekutive Umwandlungen 2 (dD), Königswanderung
Genre: h#
FEN: 5q1Q/2p1p2R/2p1P1kr/4P1p1/2P1P1P1/4p1p1/4PbP1/5BRK
Reprints: Pat a Mat 98 2016
Input: Hans-Jürgen Schäfer, 1999-01-01
Last update: Gunter Jordan, 2021-03-28 more...

3 - P0577550
Johann J. Chaschtschanski
14447 Schach , p. 79, 03/2000

(3+9)
h#7
b) sTc2 nach h6

a) 1. Txg2 Kxg2 2. Ld4 Kh1 3. Le5 fxe5 4. Kf4 e6 5. Kg5 e7 6. Kh4 e8=D 7. Kh3 Dxh5#
b) 1. gxf3ep gxf3 2. Ke5 Kg2 3. Le4 fxe4 4. Kf6 exf5 5. Kg7 f6 6. Kh8 f7 7. Th7 f8=D#
play all

Anton Baumann: C+ Gustav 4.1d (2020-11-24)
comment

Keywords: Switchback (K in a), Entblockung, Promotion (D), Promotion in the mating move (D in b), Twin, En passant as key, Selfblock (in b), Corner mate (in b), Model mate (in b)
Genre: h#, Retro
FEN: 8/8/8/5p1p/4kPp1/3bb1p1/2r3Pp/7K
Input: hpr, 2000-10-27
Last update: Gunter Jordan, 2020-11-25 more...

4 - P1000376
Manfred Rittirsch
7678 feenschach 131 01-05/1999

(11+14)
BP in 15,0
Isardam

1. d4 a5 2. Lh6 gxh6 3. h4 Lg7 4. Th3 Lxd4 5. Te3 Sf6 6. Te6 dxe6 7. e3 Sbd7 8. La6 bxa6 9. c4 Lb7 10. c5 Lxg2 11. c6 Dc8 12. cxd7+ Lc6 13. dxc8=L e5 14. Lh3 Sg8 15. Lf1 0-0-0
play all

Weiß kann im 13. Zug nicht dxe8 spielen, da das Feld e8 von Figuren aller vier Arten beobachtet ist.

paul: The last eight moves checked by Popeye 4.55:
a=b8 13 + 16
Isardam

1.Bf1-a6 b7*a6 2.c2-c4 Bc8-b7 3.c4-c5 Bb7*g2 4.c5-c6 Qd8-c8 5.c6*d7 + Bg2-c6 6.d7*c8=B e6-e5 7.Bc8-h3 Sf6-g8 8.Bh3-f1 0-0-0 a=b

solution finished. Time = 1:44:59 h:m:s (2010-12-26)
paul: And the first 12.5 verified by Jacobi. (2022-01-01)
comment

Keywords: Unique Proof Game, Isardam, Pronkin Theme (L), Switchback (s)
Genre: Retro, Fairies
FEN: 2kr2nr/2p1pp1p/p1b4p/p3p3/3b3P/4P3/PP3P2/RN1QKBN1
Reprints: H39 FIDE Album Annexe 1998-2000 2009
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2014-05-20 more...

5 - P1004461
Ivan Denkovski
Gligor Denkovski
972 Orbit 17 01/2003
1. Lob

(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

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...

6 - P1020503
Fritz af Geijerstam
La Strategie 1878
Pariser Problemturnier
3. Preis (Sendungspreis)

(12+9)
#2

1. Db1! Kxe4 2. Dh1#
1. ... fxe4 2. Db3#
play all

Henrik Juel: C+ Popeye 4.61
1.Db1 zz (2021-08-07)
comment

Keywords: Brian Stephenson Collection (5346), Switchback
Genre: 2#
FEN: 4N3/3p4/Bpp1P1bR/1r1k1p2/nP2RP2/2p5/K1PPN3/7Q
Reprints: 4547 Deutsche Schachzeitung , p. 199, 1879
4547 Deutsche Schachzeitung , p. 199, 07/1879
96 Schackproblem [Geijerstam] 1908
1587 Wiener Hausfrauen-Zeitung 24, p. 310, 13/06/1909
Schach-Echo 8, p. 219, 04/1994
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-08-07 more...

7 - P1027500
Ladislaus Cimburek
Deutscher Schachbund 1910
1. Preis
Turnier des DSB

(7+8)
#2

1. Lb7! Tg3 2. Sd3#
1. ... Dg3 2. Sxg6#
1. ... Txf4 2. d4#
1. ... Dxf4 2. Dh8#
1. ... Lxb7 2. Te6#
play all

Henrik Juel: double threat 2.Sd3,Sxg6# (2022-07-01)
comment

Keywords: Brian Stephenson Collection (12384), pin-mate (dreifach), Switchback, Pawn mate, Block, Bishop sacrifice, Knight sacrifice
Genre: 2#
FEN: 2b5/8/1R4p1/3Bkpq1/r4N2/p3r3/K1NP3Q/8
Reprints: 21 Favorit-Schachaufgaben , p. 6, nach 1910
14 Badische Presse 18/06/1921
Input: Brian Stephenson, 2004-08-12
Last update: Rainer Staudte, 2023-06-02 more...

8 - P1027784
Veljko Vorgic
Becejske novine 1962

(9+7)
#2

1. Sxe5! droht 2. Shf3#
1. ... Lxe5 2. Dxe7#
1. ... Da3+ 2. Sd3#
1. ... Dxe5+ 2. Txe5#
play all

SCHRECKE: C+, popeye 4.87 (2023-03-08)
comment

Keywords: Brian Stephenson Collection (12668), Capture key, Provoked check, Cross check, Gegenschach, Switchback, selfpinning
Genre: 2#
FEN: 3Q4/4q1p1/5b1p/3Rp1kP/2RB2Pp/3NK3/7N/8
Input: Brian Stephenson, 2004-08-12
Last update: Rainer Staudte, 2023-03-08 more...

9 - P1030951
Josef Juchli
Neue Zürcher Zeitung 03/02/1895

(9+6)
#3

1. Th8! droht 2. Tb8
1. ... Sxe5 2. Th5 Lxf3,Le4,Sxf3 3. Se6# 2. ... La2,Sg4 3. Se4#
1. ... Sh2 2. Txh2 Lxf3,Le4 3. Se6#
play all

more ...
comment

Keywords: Brian Stephenson Collection (15853), pin-mate, Switchback, half-battery, black (maskiert)
Genre: 3#
FEN: 8/3R4/B1p5/B1kbP1NR/6n1/3p1N2/2pP4/2K5
Reprints: 23 J. Juchli's Schachprobleme 1908
932 Schweizerische Schachzeitung , p. 50, 04/1908
97 Schach-Express , p. 133, 01/08/1947
553 Beispiele zur Ideengeschichte des Schachproblems , p. 120, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-04-19 more...

10 - P1031220
A. C. J. van van Eelde
G. C. A. Oskam
452 Schweizerische Schachzeitung , p. 35, 03/1905
3. ehrende Erwähnung (aufgerückt)
1. Problemturnier 1905
Schweizerischer Schachbund

(10+5)
#3

1. Sg6! droht 2. Se7+ Ke6 3. Lg4#
1. ... Lxh3 2. Sf8 Lc8,Ld7 3. Dh1#
1. ... Ke6 2. Sf4+ gxf4 3. Lc4#
1. ... Lf5 2. Db7+
1. ... Ke4 2. Se7+ Kf4 3. Sd5# 2. ... Lf5 3. Dxf5#
1. ... Kc6 2. Se5+ Kd5 3. Lc4#
play all

ohne wBh3 ginge sofort Dh1#. Also wird Schwarz zur Beseitigung dieses wB gezwungen.

Henrik Juel: dual 1... Lf5 2.Db7,Df7+ (2022-10-04)
comment

Keywords: Brian Stephenson Collection (16122), Switchback (wS), Flight-giving key
Genre: 3#
FEN: K1b2N2/7Q/5P2/p1Pk2p1/3B4/7P/2N1BP2/2b5
Reprints: Politiek en Cultuur 10/1938
158 Versunkene Schätze , p. 71, 1998
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-04 more...

11 - P1040553
Fritz Emil Giegold
Oberösterreichische Nachrichten 1962

(6+6)
#3

1. Lc6! droht 2. De4#
1. ... Kxd3 2. De4+ Sxe4 3. Lb5#
1. ... dxc6 2. Kc2 Tf3 3. De6#
1. ... d5 2. Lxd5
play all

Sally: Oberösterreichische Nachrichten 1962. 1.Lc6 (droht De4#) - Kxd3, 2 De4+! - Sxe4, 3.Lb5#( Rückkehr)
1. - Bdxc6, 2. Kc2 (droht Lxd2#) - Tf3, 3. De6#.
1. - Bd5, 2.Kxc2 (drohtLxd2#) - Lb6, 3.Lxd2#. 2 - Tf3,3.De6#
Überraschende Figurenopfer. Nr. 92 Rätselvolle S. Aufg.(1980 (2011-12-08)
SCHRECKE: C+, popeye 4.87
Auf 1. ... d5 folgt 2.Kc2 (nicht 2.L:d5? K:d3!) (2021-11-16)
comment

Keywords: Brian Stephenson Collection (25511), Figurenopfer, Switchback
Genre: 3#
FEN: 8/b2p4/8/1B6/6Q1/2PNk2r/1K1n2p1/2B5
Reprints: 92 Rätselvolle Schachaufgaben , p. 55, 1980
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-11-15 more...

12 - P1043951
Friedrich Köhnlein
Süddeutsche Schachblätter 1907

(6+9)
#4

1. e4? dxe3ep!

1. Dd5+! Kh2 2. e4+ Kh1 3. Da5 Ta4 4. De1#
play all

Henrik Juel: dual 1.Dd5+ Kg1 2.Tc1+ Kh2 3.Df3,Th1+ (2022-01-24)
more ...
comment

Keywords: Brian Stephenson Collection (28947), En passant avoidance, Switchback (wD), Checking key
Genre: n#
FEN: 8/q4p2/p4b2/Q5pK/1r1p4/1P1P3p/2R1P3/7k
Reprints: Sammler 1916
976 FIDE Album 1914-1944/II 1972
B Die Schwalbe 61, p. 8, 02/1980
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-01-24 more...

13 - P1052316
Philipp von Klett
4002 Deutsche Schachzeitung , p. 8, 01/1876

(10+9)
#4

1. Lh2! droht 2. Sf6#
1. ... c4 2. Ld6 Lxf3 3. Sf5 Lxe4 4. Sc7# 3. ... Kxe4 4. Sf6#
2. ... Ld3 3. Sf5 2. ... Se7 3. Sf7
1. ... Lc4+ 2. Ka1 Lxb5 3. Sf6+ Kc6 4. Te6#
2. ... Se5 3. Txe5+ Kd4 4. Sf5# 2. ... Sf4 3. Sf6+ Kd6 4. Lxf4#
play all

Felber, Volker: Autor in der DSZ mit 'P. K. in L.' angegeben. (2014-03-12)
Henrik Juel: late duals like 1... Lc4+ 2.Ka1 Sf4 3.Sf6+,Sf5 (2023-12-03)
comment

Keywords: Brian Stephenson Collection (37358), Switchback (wL), Blocknutzung, Drag-in sacrifice, Provoked check
Genre: n#
FEN: 4N3/1p6/3B2nN/pPpk4/4R1Pp/P1p2P2/K1P1b3/3n4
Reprints: 71 Schachprobleme [Klett] 1878
24 Classic Chess Problems by Pioneer Composers , p. 17, 1970
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-12-03 more...

14 - P1052740
Manfred Zucker
1656 Deutsche Schachblätter , p. 189, 08/1974

(4+5)
#4

(MZ348)
Sally: August 1974.
1.Sf4+? - Kxg1,2.Se2+- Lxe2! 1.Sg5+? - Kxg1,2.Sf3+ - Bexf3!
1. Kf2! -Be3+ ,2. Ke1!(droht Sg5+)- Lb7,3.Sf4+ -Kxg1,4.Sb6#
Rückkehrthema, S Provokationund zwei abspiele des Siers -
Rössels in einem 9 Steiner ohne w. Bauern.
S. 38 Ausgew. S. Aufg. (1989) Nr. 58 (Zucker). (2010-08-29)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-08)
comment

Keywords: Brian Stephenson Collection (37782), Model mate, Switchback, Provoked check, Siers-Rössel
Genre: n#
FEN: 8/8/b3p3/8/4p2R/7N/6p1/4K1Bk
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2021-03-08 more...

15 - P1053146
György Bakcsi
Magyar Sakkelet 1983
2. Preis

(10+10)
#3

1. Ld4! droht 2. Lxe5+
1. ... Kxe6 2. Dxe5+ Kf7 3. Dh5#
1. ... Kd5 2. Txe5+ Kxd4 3. Te4#
play all

Henrik Juel: C+ Popeye 4.61 (2022-03-22)
comment

Keywords: Brian Stephenson Collection (38189), Switchback (wT + wD im Mattzug)
Genre: 3#
FEN: N1B3b1/1n1np1Pp/1p1kP3/1Kp1p2Q/4R3/2p2P2/1N6/6B1
Reprints: V Die Schwalbe 96, p. 608, 12/1985
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-03-21 more...

16 - P1059935
Roland Baier
Basler Nachrichten 1973

(9+4)
#3

1. Db8! Kf2 2. Dg3+ Kf1 3. Le2#
1. ... Ke4 2. Sf5 d4 3. Sf6#
1. ... Kxd4 2. De8 Kc4 3. Da4# 2. ... Ke5,Ke3 3. Lc5#
play all

SCHRECKE: 1. ... Kxd4 2. De8 Ke4 3. Lc5,Lf6# (Mattdual) (2022-09-10)
comment

Keywords: Brian Stephenson Collection (45005), Switchback (wD), Knight sacrifice
Genre: 3#
FEN: 4Q3/4BK2/8/3p2pN/3N2P1/4k3/1PPp4/3B4
Reprints: 62 Kunstschach in der Schweiz , p. 41, 1980
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-09-10 more...

17 - P1082133
Wolfgang Weber
8557 Schach-Echo 18, p. 287, 09/1975

(4+6) cooked
s#8*

* 1. ... Txe1#
1. Db3 Kd2 2. Tgxe2+ Kc1 3. Tg2 e2 4. Da2 e3 5. Db3 Kd2 6. Tgxe2+ Kc1 7. Tg2 e2 8. Da2 Txe1#
play all

Cook: Dual 3. Dxe3+ Kb1 4. Dxe4+ Kc1 5. Dc4+ Kb1 6. Da2+ Kc1 7. Tg2 Txe1#
4. ... Ka1 5. Da4,Da8+ Kb1 6. Da2+,Tg2 Kc1 7. Tg2,Da2,Db7,Db8 Txe1# (Frank Richter)

Frank Richter: Cook in 7: 3.Dxe3+ Kb1 4.Dxe4+ Kc1 5.Dc4+ Kb1 6.Da2+ Kc1 7.Tg2 Txe1#, 4.- Ka1 5.Da4,Da8+ Kb1 6.Da2+,Tg2 Kc1 7.Tg2,Da2(b7,b8) Txe1# (2009-05-29)
Gunter Jordan: Auch wenn es nicht besonders schön aussieht, aber mit einem zusätzlichen Bauernpaar wBf4/sBf5 wird das Stück korrekt und die feine Idee mit den multiplen Rückkehren bleibt erhalten. (2021-12-07)
SCHRECKE: Eine elegantere Korrektur scheint mir, die ganze Stellung nach rechts zu verschieben! (2021-12-07)
comment

Keywords: Switchback (DTk), Mutate, Model mate, Tempo Losing Manouevre
Genre: s#
FEN: 8/8/8/8/4p3/4p1p1/Q3p1R1/2krR1K1
Input: HBae, 2009-02-06
Last update: Gunter Jordan, 2021-12-07 more...

18 - P1090259
Camillo Gamnitzer
8393v Die Schwalbe 02/1994
Version Banaszek siehe comment

(14+11) cooked
s#7

1. Kc1! droht 2. Sc3+ Kd4 3. Sd1+ Kd5 4. Se3+ Lxe3#
1. ... e6 2. Kd1 droht 3. Sf6+ Kd6 4. La3+ Lc5#
2. ... e5 3. Kc1 exf4 4. Sxc7+ Txc7 5. Lc4+ Kxc4 6. Td6 ... 7. Td4+ Lxd4#
play all

Korrektur in 02/1996, Seite 297.
Diese Korrektur scheint verdruckt! 2w schwarzfeldrige Läufer.
Die Stellung des wLb6 wurde auf wLb5 in 04/1996 korrigiert.
Cook: 2. ... Txh5! 3. Sf6+ Kd6 4. La3+ Tc5 5. Lxc5+ Lxc5 6. Txh1

Anton Baumann: mögliche Korrektur: -wBa4, -wBh5, wLb6 nach b5, +sSa8, +sBh4 (12+13)
1.Kc1 droht 2.Sc3+ Kd4 3.Sd1+ Kd5 4.Se3+ Lxe3#
1. ... e6 2.Kd1 droht 3.Sf6+ Kd6 4.La3+ Lc5#
2. ... e5 3.f5 (dr. 4.Sf6+ ..) d6 4.Kc1 nebst 5.Sc3+ Kd4 6.Sd1+ Kd5 7.Se3+ Lxe3#
3. ... dxc6 4.Txc6 nebst 5.Tc5+ Lxc5#
2. ... d6 3.Kc1 nebst 4.Sc3+ Kd4 5.Sd1+ Kd5 6.Se3+ Lxe3# (2022-06-02)
Marcin Banaszek: Eine Korrektur die Autorenlösung beinhaltet: wTh6g6 -wBh5 +sBh6 * C+ Gustav 4.1c (2022-06-12)
comment

Keywords: Switchback (K x2)
Genre: s#
FEN: 2r5/2pppP2/N1P4R/pB1k3P/P3NP2/1p3P2/1B1PP1pr/3K2bq
Input: Frank Müller, 2009-08-22
Last update: Marcin Banaszek, 2022-06-12 more...

19 - P1106542
Roberto Osorio
Jorge Joaquin Lois
Mario Richter
Quartz 32 07-12/2007
1. Preis
Raican-50-JT

(15+12) cooked
BP in 27.0

1. Sf3 e5 2. Sh4 Lb4 3. f3 Lc3 4. bxc3 d5 5. La3 d4 6. Lc5 d3 7. Sa3 dxe2 8. Kxe2 Ld7 9. Kd3 b5 10. De2 b4 11. Kc4 Sc6 12. Kb5 e4 13. Ka6 e3 14. Db5 e2 15. Sc4 e1=L 16. Le2 Lg3 17. The1 Ld6 18. Lg1 Lf8 19. Lf1+ De7 20. Te6 Td8 21. Tae1 Sb8+ 22. Kxa7 g5 23. Ta6 g4 24. Tee6 g3 25. Tec6 Lc8 26. Se5 Td4 27. cxd4 Dd8
play all

Cook: 1. Sf3 Sc6 2. Sh4 Sd4 3. f3 Sxe2 4. Kxe2 b6 5. Kd3 Tb8 6. Kc4 Tb7 7. Kb5 g5 8. Ka6 b5 9. Ld3 Tb6+ 10. Kxa7 Tc6 11. Te1 Tc3 12. Te6 g4 13. Ta6 e5 14. bxc3 e4 15. La3 e3 16. Lc5 e2 17. Sa3 e1=S 18. Lf1 b4 19. De2+ De7 20. Db5 Sd3 21. Te1 g3 22. Tee6 Se5 23. Tec6 d5 24. Lg1 d4 25. cxd4 Sd7 26. Sc4 Sb8 27. Se5 Dd8

hans: . (2014-09-09)
Henrik Juel: A record in comment brevity... (2014-09-09)
Michel Caillaud: cooked using Jacobi 0.7.5 with constraints :
1.Sf3 Sc6 2.Sh4 Sd4 3.f3 Sxe2 4.Kxe2 b6 5.Kd3 Tb8 6.Kc4 Tb7 7.Kb5 g5 8.Ka6 b5 9.Ld3 Tb6+ 10.Kxa7 Tc6 11.Te1 Tc3 12.Te6 g4 13.Ta6 e5 14.bxc3 e4 15.La3 e3 16.Lc5 e2 17.Sa3 e1=S 18.Lf1 b4 19.De2+ De7 20.Db5 Sd3 21.Te1 g3 22.Tee6 Se5 23.Tec6 d5 24.Lg1 d4 25.cxd4 Sd7 26.Sc4 Sb8 27.Se5 Dd8 (2021-07-29)
A.Buchanan: Mario: sorry to read this. Is it fixable do you think? (2021-07-29)
more ...
comment

Keywords: Unique Proof Game, Pronkin Theme (l), Switchback (Lsld), Retro Shield
Genre: Retro
Computer test: cooked by Jacobi 0.7.5 with constraints
FEN: 1nbqkbnr/K1p2p1p/R1R5/1Q2N3/1p1P3N/5Pp1/P1PP2PP/5BB1
Reprints: (H3) The Problemist 05/2010
Input: Gerd Wilts, 2010-06-02
Last update: A.Buchanan, 2021-07-31 more...

20 - P1113661
Theodor Steudel
30 mpk-Blätter 05/2004

(1+2)
ser-h=14
Köko

1. Kb8 2. BEb6 3. Kc7 4. Kc6 5. BEc5 6. Kd5 7. BEd4 8. Ke4 9. BEe3 10. Kf3 11. BEf2 12. Kg2 13. BEg1=L 14. La7 Kb6=
play all

Anton Baumann: C+ Alybadix (2021-11-13)
Henrik Juel: C+ Popeye 4.61 also (instantly) (2021-11-13)
comment

Keywords: Köko, Rückkehr nach Umwandlung, Seriesmover
Pieces:

= Berolina Pawn (BE)
Genre: Fairies
FEN: k7/*2p7/K7/8/8/8/8/8
Input: Frank Müller, 2010-08-26
Last update: Erich Bartel, 2010-08-26 more...

21 - P1118606
Otto Dehler
III Die Schwalbe 89, p. 283, 05/1935

(3+2)
#5

1. S5b6+! (Se7?) Ka7 2. Sc8+ Ka8 3. Kb5 b6 4. Ka6 b5 5. Scb6#
play all

SfK m
Henrik Juel: cook 1.Se7 Ka7! 2.Sc8+ Ka8 3.Kb5 b6 4.Ka6 b5 5.Sb6# (other defenses allow #4) (2024-02-29)
comment

Keywords: Miniature Collection (0323269), Minimal (b), Miniature, Checking key, Switchback (k), Model mate, Corner mate
Genre: n#
FEN: k7/1p1N4/8/K2N4/8/8/8/8
Input: Felber, Volker, 2010-09-11
Last update: Gunter Jordan, 2024-02-29 more...

22 - P1123583
Nikolay S. Zinovyev
10694 Ideal-Mate Review 78 04/2000

(5+2)
#4

1. a8=L Ka6 2. Ka3 Kb5 3. Lb7 Kc4 4. Sd6#
play all

SX3L IM BUL4
SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-12-06)
comment

Keywords: Miniature Collection (0328371), under-promotion key, under-promotion (L), Miniature, Minimal (b), Schlüssel = Eckzug, Ideal mate, Switchback (k)
Genre: n#
FEN: 2N5/P7/1B6/1k6/8/1K1p4/3P4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2023-12-06 more...

23 - P1128648
Otto Dehler
22 Deutsche Schachzeitung , p. 62, 03/1923

(2+2)
#3

1. fxg8=T Ka2 2. Tg3 Ka1 3. Ta3#
play all

BUT32 IM
SCHRECKE: C+, popeye 4.87 (2022-04-25)
comment

Keywords: Miniature Collection (0045648), Capture key, under-promotion key, under-promotion (T), Switchback (k), Corner mate, Ideal mate
Genre: 3#
FEN: 6b1/5P2/8/8/8/8/8/k1K5
Reprints: 36 Schachmatnyje kwartety , p. 22, 1983
Input: Felber, Volker, 2010-09-11
Last update: Gunter Jordan, 2022-04-25 more...

24 - P1134592
Claus Grupen
3374 Kieler Nachrichten 25/01/1997

(5+1)
#5

1. La5 Kd4 2. Lc7 Kc4 3. Ld8 Kd4 4. Lf6+ Kc4 5. d3#
play all

BsL0 IM D20
Henrik Juel: C+ Popeye 4.61 (2023-05-27)
comment

Keywords: Miniature Collection (0073492), anticipated (P1152960), Rex solus (s), Miniature, Flight-giving key, Switchback (k), Pawn mate, Ideal mate
Genre: n#
FEN: 8/8/2K5/2N5/2k5/P1B5/3P4/8
Input: Felber, Volker, 2010-09-11
Last update: Gunter Jordan, 2023-05-27 more...

25 - P1134614
Walter Wohlers
188 Landeszeitung für die Lüneburger Heide 13/02/1971

(5+2)
#4

1. Lf5 Se4 2. Lh3 Sd2 3. Lc8 ... 4. La6#
play all

F4LS
Henrik Juel: late duals, e.g., 1... Se4 2.Lh3 Sd2 3.Lg2,Lc8 (2023-02-04)
comment

Keywords: Miniature Collection (0073502), Minimal (s), Miniature, Switchback (L)
Genre: n#
FEN: 2B5/8/2K5/2nN4/2k5/4P3/2P5/8
Input: Felber, Volker, 2010-09-11
Last update: Gunter Jordan, 2023-02-04 more...

26 - P1134717
Alexander N. Melnichuk
15116 Ideal-Mate Review 101 01/2006

(5+2)
#7

1. f4 Ke4 2. Lb1+ Kd4 3. Kb6 Kc4 4. La2+ Kd4 5. Kb5 Ke4 6. Lb1+ Kd4 7. e3#
play all

BsL2 IM
SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-04-10)
comment

Keywords: Miniature Collection (0329273), Minimal (b), Miniature, Pawn mate, Ideal mate, Switchback (Lk), Klasinc theme (L-k)
Genre: n#
FEN: 8/8/2K5/3p4/3k4/5P2/B2BP3/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2023-04-10 more...

27 - P1138346
Claus Grupen
Problem Observer 2004
1. Preis

(5+1)
#3

1. Se3! Kxe3 2. Tf1 Kd3 3. Tf3#
1. ... Kxg3 2. Ke1 Kf3 3. T1h3#
1. ... Kf2 2. Sgf5 Kf3 3. Tf1#
play all

FO3SS
SCHRECKE: C+, popeye 4.87 (2022-05-30)
comment

Keywords: Aristocrat, Flight giving and taking key, Sacrifice key, Miniature, Rex solus (s), Switchback (k)
Genre: 3#
FEN: 8/8/8/8/7R/5kN1/6N1/3K3R
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2022-05-30 more...

28 - P1139744
Boris Sidorov
64-Shakhmatnoe obozreniye , p. 32, 15/02/1984

(6+1)
#2
21 Lösungen

1. Db1+ Kxc4 2. De4#
1. Dh1 Kxc4 2. De4#
1. Dg2 Kxc4 2. De4#
1. Df3 Kxc4 2. De4#
1. Dh7 Kxc4 2. De4#
1. Dg6 Kxc4 2. De4#
1. Df5 Kxc4 2. De4#
1. Da8 Kxc4 2. De4#
1. Db7+ Kxc4 2. De4#
1. Dc6 Kxc4 2. De4#
1. De1 Kxc4 2. De4#
1. De3 Kxc4 2. De4#
1. De8 Kxc4 2. De4#
1. De7 Kxc4 2. De4#
1. De5 Kxc4 2. De4#
1. Lh2! Kxc5 2. Ld6#
1. Lg3 Kxc5 2. Ld6#
1. Lf4 Kxc5 2. Ld6#
1. Le5 Kxc5 2. Ld6#
1. Lb8 Kxc5 2. Ld6#
1. Lc7 Kxc5 2. Ld6#
play all

Henrik Juel: C+ Popeye 4.61 (2022-08-07)
comment

Keywords: Miniature Collection (0312822), Miniature, Switchback (15xD,6xL), Task (Construction)
Genre: 2#
FEN: 8/8/3B4/2N5/PkN1Q3/8/3K4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-08-07 more...

29 - P1144089
Claus Grupen
Problem Observer 03/1975

(5+2)
#3

1. Kd8! Kb7 2. Td7+ Kxc6 3. Tc7#
2. ... Ka8 3. Txa7#
play all

A2-T2T+ m
SCHRECKE: C+, popeye 4.87 (2022-11-13)
comment

Keywords: Miniature Collection (0340522), Minimal (b), Miniature, Corner mate, Model mate (Gnaden-), Square vacation, Switchback (k)
Genre: 3#
FEN: 8/p2K4/k1N5/2P5/2PR4/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2022-11-13 more...

30 - P1144985
Nikolay S. Zinovyev
14893 Ideal-Mate Review 99 07/2005

(4+3)
#12

1. Lf2 Kxh2 2. Ke7 Kh1 3. Tg1+ Kh2 4. Txg4 Kh1 5. Lg1 h2 6. Lxh2 Kxh2 7. Kf6 Kh3 8. Kg5 Kh2 9. Kh4 Kh1 10. Kg3 Kg1 11. Tf4 Kh1 12. Tf1#
play all

Ta IM LO6
Anton Baumann: C+ Gustav 4.2a (2022-02-24)
comment

Keywords: Miniature Collection (0329249), Ideal mate, Flight-giving key, Corner mate, Switchback (Lk), Rücknahme Schlüsselzug
Genre: n#
FEN: 3K4/8/8/8/6p1/6Rp/7P/6Bk
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2023-01-06 more...

31 - P1145118
Otto Fuss
Schachminiaturen 1903

(5+2)
#3

1. Dd5! Kxa6 2. Da8+ Kb6 3. Sd7#
1. ... Ka5 2. Kc7
1. ... b4 2. Dc6+
play all

MM-DS-DS
SCHRECKE: Nebenlösung
1. Sd7+ Ka5 2. Dd5 Ka4,Kxa6 3. Da2,Da8# (2023-09-20)
comment

Keywords: Miniature Collection (0292171), Minimal, Miniature, Switchback
Genre: 3#
FEN: Q2K4/8/Pk6/1p2N3/8/2P5/8/8
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-09-19 more...

32 - P1146390
Wilhelm Kienzl
Kieler Nachrichten 11/12/1971

(5+2)
#3

1. 0-0-0 Kxc3 2. Kb1 Kb3 3. Td3#
1. ... Ka3 2. Kc2 Ka2 3. Ta1#
play all

E2-b3 m
SCHRECKE: C+, popeye 4.87 (2022-08-07)
comment

Keywords: Miniature Collection (0330185), Castling (wl), Castling key, Switchback (Tk), Flight-giving key, Model mate (Gnaden-), Miniature, Minimal (b)
Genre: 3#
FEN: 8/8/8/p7/P3R3/1kB5/8/R3K3
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2022-08-06 more...

33 - P1149120
Manfred Zucker
Tribüne 10/06/1977

(3+3)
#5

1. Ke2 e5 2. Le8 e4 3. La4 e3 4. Kxe3 Kd1 5. Tb1#
play all

(MZ431)

vf: Nikolai Wlasenko, 02.1988, Schach-M,
.
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-12)
comment

Keywords: ambush, Miniature, Switchback, pin-mate (L-b), Model mate
Genre: n#
FEN: 8/8/4p3/7B/8/1R2K3/2p5/2k5
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2023-07-01 more...

34 - P1150728
Thomas R. Dawson
10769 Deutsches Wochenschach 12/05/1912

(5+2)
#2

1. Dc1! droht 2. Dh1#
1. ... g6 2. T6e7#
1. ... g5 2. Dc7#
play all

B19a mm
SCHRECKE: C+, popeye 4.87 (2022-04-07)
comment

Keywords: Miniature Collection (0308098), Minimal, Miniature, Switchback
Genre: 2#
FEN: 4R3/2Q3pk/4R3/4P3/4K3/8/8/8
Reprints: 18 Veckans Krönika 19/10/1912
Input: Zuncke/Bruder, 2010-09-12
Last update: Mario Richter, 2022-04-07 more...

35 - P1151436
Oskar Blumenthal
633 Bohemia 27/11/1904

(4+1)
#3

1. Dg2! Kb2 2. Sd3+ Kc3 3. Dc2#
1. ... Kxa1 2. Sd1 Kb1 3. Db2#
1. ... Kc1 2. Sd3+ Kd1 3. Dc2#
1. ... Ka2 2. Sd3+ Ka3 3. Da8#
play all

A5-DDD+ mm
Henrik Juel: dual 1... Kxa1 2.Sd1,Sd3 (2023-01-05)
more ...
comment

Keywords: Miniature Collection (0053411), Aristocrat, Miniature, Switchback, ambush key, Model mate, Flight-giving key, Rex solus
Genre: 3#
FEN: Q7/8/8/4K3/8/8/5N2/Nk6
Reprints: 656 Schweizerische Schachzeitung , p. 105, 07/1906
15 Arbeiter-Zeitung (Wien) 07/06/1924
10 Die Schwalbe 5, p. 44, 02/1925
45 Das Schachproblem , p. 25, 1981
223 Perlen der Schachkomposition 1985
Schach-Echo 7, p. 190, 04/1993
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-01-05 more...

36 - P1156211
Viktor S. Kolpakov
1093 Temp-64 20/07/1995

(3+3)
#4*

* 1. ... Kh1 2. Lf1 Kh2 3. Sxf3+ Kh1 4. Lg2#
1. Lg4 Kh1 2. Lxf3+ Kh2 3. Lg2 f3 4. Sxf3#
play all

SfL
SCHRECKE: C+, Gustav 4.2e, Brute Force (2024-01-16)
comment

Keywords: Miniature Collection (0345781), Miniature, Schlüssel = Eckzug (im *), Switchback (k), Exchange of roles (L-S)
Genre: n#
FEN: 8/8/8/8/5p2/5p1B/5K1k/6N1
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2024-01-16 more...

37 - P1157213
Nikolay S. Zinovyev
14706 Ideal-Mate Review 98 04/2005

(4+2)
#8

1. Kf4 Kh5 2. Sc5 Kh6 3. Sce6 Kh5 4. Kg3 Kh6 5. h3 Kh5 6. Sf7 g5 7. Sf8 g4 8. hxg4#
play all

B3a IM
Henrik Juel: C+ Popeye 4.61 (2022-03-12)
comment

Keywords: Miniature Collection (0329155), Miniature, Minimal (b), Pawn mate, Ideal mate, Switchback (k)
Genre: n#
FEN: 8/8/6p1/6N1/4N2k/5K2/7P/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2022-03-11 more...

38 - P1169866
Nikolay S. Zinovyev
11146 Ideal-Mate Review 79 07/2000
Preis
PR Eugene Albert

(3+3)
#12

1. Lc3! Kb8 2. Le5+ Ka8 3. Lf4 d2 4. Lxd2 Kb8 5. La5 Ka8 6. Kg2 Kb8 7. Kf3 Ka8 8. Ke4 Kb8 9. Kd5 Ka8 10. Kc6 Kb8 11. Lc7+ Ka8 12. Lb7#
play all

L12L IM
Anton Baumann: C+ Gustav 4.2a (2022-03-24)
comment

Keywords: Miniature Collection (0328475), Miniature, Corner mate, Ideal mate, Switchback (k)
Genre: n#
FEN: k7/p7/B7/8/8/3p4/8/B6K
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2024-02-28 more...

39 - P1170345
Albert Fischli
Basler Nachrichten 1968

(6+1)
#4

1. Db6! Kxd5 2. Da7 Ke4 3. Dd7 Kf4 4. Dg4#
1. ... Kf4 2. Db1 Kg5 3. Dg6+ 2. ... Kg3 3. Df5
1. ... Kf5 2. Dg6+ Kf4 3. Dg4#
play all

D13B
SCHRECKE: 1. ... Kf4 2. Db1 Kg3 3. Df5,Dg1+ (Dual) (2022-09-19)
comment

Keywords: Miniature Collection (0331300), Miniature, Rex solus, Switchback (wD)
Genre: n#
FEN: 8/Q7/8/3PN3/3Pk3/8/3P4/7K
Reprints: 150 Kunstschach in der Schweiz , p. 85, 1980
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2022-09-19 more...

40 - P1174201
Nikolay S. Zinovyev
11111 Ideal-Mate Review 79 07/2000

(4+1)
#6

1. Sfe4 Kg8 2. Sd6 Kf8 3. Sgf5 Kg8 4. Le5 Kf8 5. Lg7+ Kg8 6. Se7#
play all

IM SsL
SCHRECKE: C+, Gustav 4.2e, Brute Force (2024-03-06)
comment

Keywords: Miniature Collection (0328440), Rex solus (s), Switchback (k), Ideal mate
Genre: n#
FEN: 7k/8/7K/8/8/6N1/5N1B/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2024-03-06 more...

41 - P1185013
Camillo Gamnitzer
2197 Probleemblad 09-10/1992

(11+11)
s#7

1. Txd4??
1. Td7 droht 2. Db5+ cxb5 3. Txc7+ Lxc7#
1. ... Lf2 2. Txd4 droht 3. Ta4+ Lxe3 4. Db6+ cxb6#
2. ... Lxe3? 3. Tc4+ Kd5 4. Ta4+ etc.
2. ... Lg3 3. Lf2 Ld6 4. g4 Txf2 5. Tc4+ Kd5 6. De4+ Sxe4 7. Tc1+ Txa2#
3. Lg1? Ld6 4. g4 Txa2+!
4. g3? Th3!
4. Se5,Sf4? Lxf5!
1. ... Se6? 2. f8=D+ Ld6 3. Dfb8! Dxb8 4. Db4+
1. ... Da8,De8 2. f8=D+ Ld6 3. Dxa8,Dxe8 droht 4. Db5+ cxb5 5. Txc7+, 4. D8b8 ... 5. D1b5+
play all

Harry Fougiaxis: Dual: 1...Lf2 2.Lxg5! (2011-12-22)
Ralf Kr?tschmer: Korrektur laut CG: +sBh6 (2015-02-10)
Anton Baumann: mit sBh6: C+ Gustav 4.2a (2022-12-03)
comment

Keywords: Switchback
Genre: s#
FEN: 3R2q1/2p2PPb/P1p3N1/K1k2Nn1/3p3p/4B1b1/B5Pr/1Q2n3
Input: Frank Müller, 2011-01-13
Last update: Alfred Pfeiffer, 2015-02-10 more...

42 - P1194772
Camillo Gamnitzer
S1605 The Problemist 03/1995
1. ehrende Erwähnung

(15+9)
s#5

1. Td4 droht 2. Sg5+ Ke5 3. Lc7+ Kxd4 4. Se6+ Lxe6 5. Dxd3+ Sxd3#
1. Td4 Lxf7 2. Txd3 droht 3. Td6+ (Opferräumung des Turms für die Dame) Kxd6 4. Sb7+ Ke6 5. Db3+ Sxb3#
1. Td4 Lxf7 2. Txd3 Sc3 3. Dd5+ (Opferbahnung der Dame für wLh1) Sxd5 4. Lxd5+ Kd6 5. Lxf7+ Sxd3#
1. Td4 Lxf7 2. Txd3 Tb1 3. Te3+ Kd6 4. Df6+ Le6 5. Td3+ Sxd3#
play all

Anton Baumann: C+ Gustav 4.2a (2023-09-22)
comment

Keywords: Opferbahnung, Switchback
Genre: s#
FEN: 3B2b1/5N1p/2P1k1PP/N2R3R/1p6/3p1Q1p/n2PPP1P/r1n3KB
Input: Frank Müller, 2011-05-07
Last update: Frank Müller, 2011-05-07 more...

43 - P1197230
Friedrich Hariuc
The Problemist 07/1980
Minimalturnier
4. ehrende Erwähnung

(2+12)
#41

1. Se4 Sd3 2. Ka2 Sb4+,Sc1+ 3. Kb2 Sd3+ 4. Ka3 e6 5. Ka2 Sb4+,Sc1+ 6. Kb2 Sd3+ 7. Ka3 e5 8. Ka2 Sb4+,Sc1+ 9. Kb2 a3+ 10. Kxa3 Sd3 11. Ka2 Sb4+,Sc1+ 12. Kb2 Sd3+ 13. Ka3 a4 14. Ka2 Sb4+,Sc1+ 15. Kb2 Sd3+ 16. Ka3 a5 17. Ka2 Sb4+,Sc1+ 18. Kb2 Sd3+ 19. Ka3 a6 20. Ka2 Sb4+,Sc1+ 21. Kb2 a3+ 22. Kxa3 Sd3 23. Ka2 Sb4+,Sc1+ 24. Kb2 Sd3 25. Ka3 a4 26. Ka2 Sb4+,Sc1+ 27. Kb2 Sd3+ 28. Ka3 a5 29. Ka2 Sb4+,Sc1+ 30. Kb2 a3+ 31. Kxa3 Sd3 32. Ka2 Sb4+,Sc1+ 33. Kb2 Sd3+ 34. Ka3 a4 35. Ka2 Sb4+,Sc1+ 36. Kb2 a3+ 37. Kxa3 Sd3 38. Ka2 Sb4+,Sc1+ 39. Kb2 Sd3+ 40. Ka3 ... 41. Sf2,Sg3#
play all

Anton Baumann: C+ Gustav 4.1d (2021-08-19)
comment

Keywords: Minimal (S), Round Trip (K-3), Switchback (s), Corner mate, Model mate, Smothered mate
Genre: n#
FEN: 8/p3p3/p7/p5N1/p2p4/K7/6pp/2n2nrk
Input: Frank Müller, 2011-06-10
Last update: Gunter Jordan, 2021-09-11 more...

44 - P1218999
Carl Eckhardt
826 Die Schwalbe 24, p. 335, 12/1929

(7+5)
#4

1. La6! f3 2. Lc8 Te8 3. Da6+
2. ... Te6 3. Da6+ Txa6 4. Lxa6#
play all

Henrik Juel: dual 2... Td2 3.Lh3,Da6+ (2021-11-07)
comment

Keywords: Switchback
Genre: n#
FEN: K7/6R1/8/8/5p1P/3B4/2P1rp2/Q1R1nk2
Reprints: 5 Die Schwalbe 261-262, p. 403, 05/1955
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2021-11-06 more...

45 - P1234889
George P. Sphicas
2642 Ideal-Mate Review (28) 04-06/1988
Preis

(4+6) cooked
ser-s#18

1. c8=D 2. Dxb7 3. Dc7 4. b7 5. b8=D 6. Db4 7. Kc3 8. Kxc4 9. Dbxd6 10. Ddb6 11. d6 12. d7 13. d8=D 14. Dxg5 15. Dgb5 16. Kc5 17. Kc6 18. Dd5+ Dxd5#
play all

Cook: 3. Da6 4. b7 5. b8=D 6. Dbxd6 7. Db4 8. Kc3 9. Kxc4 10. Db3 11. d6 12. d7 13. d8=S 14. Sb7 15. Df6 16. Sc5+ Dxc5,Txc5#

paul: See P1234895 as a correction. (2022-07-09)
comment

Keywords: konsekutive Umwandlungen 3 (DDD), Rückkehr nach Umwandlung (3x), Seriesmover, Ideal mate
Genre: Fairies
FEN: 8/1pP5/1P1p4/q2P2r1/2p1k3/8/2K5/8
Reprints: G11 FIDE Album Annexe 1986-1988 1996
Input: Frank Müller, 2012-03-20
Last update: Frank Müller, 2012-06-10 more...

46 - P1238251
Reinhardt Fiebig
1215 Springaren , p. 104, 06/2009

(5+5)
h#7

1. Sc6 a3 2. Sd4 a4 3. Sxe2 a5 4. Sd4 La6+ 5. Ka8 Lc8 6. Sc6 a6 7. Sb8 Lb7#
play all

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-10-26)
comment

Keywords: Rücknahme Schlüsselzug, Rückkehr nach Umwandlung (s), Corner mate, Model mate, Entblockung
Genre: h#
FEN: 1n6/pk6/8/8/8/4p1p1/P3P1P1/5B1K
Input: Felber, Volker, 2012-05-07
Last update: Gunter Jordan, 2021-10-26 more...

47 - P1248311
Kurt Joachim Siegfried Timpe
10010 Die Schwalbe 05-06/1955
C. Eckhardt zum Gedenken
nach G. F. Anderson
3.-4. Preis geteilt

(7+6)
#4

1. Kf1? Sf6 2. Sg6? Sd5! 3. Lxg5 Sxe3+! 3. Kg1 Sf4!

1. 0-0! Kh4 2. Kf2 g3+ 3. Ke1
1. ... Sf6 2. Sg6 Sd5 3. Lxg5
1. ... Sf8 2. Txf8 Kh4 3. Lc7
play all

Siehe dazu Nachläufer unter P1248310
Henrik Juel: duals, 1.0-0 Sf6 2.Sg6 Se8 3.Lxg5,Le7 and 2... Sd7 3.Lc7+,Lxg5
mate dual after 1... Sf6 (2021-11-25)
comment

Keywords: Castling, Switchback (w. Rochade)
Genre: n#
FEN: 3B4/7n/8/4N1p1/4p1p1/3pP1k1/3P2P1/4K2R
Reprints: 10010 Die Schwalbe 283-286, p. 161, 03-06/1957
Input: Felber, Volker, 2012-09-13
Last update: Dieter Berlin, 2021-11-24 more...

48 - P1262213
György Bakcsi
6564v Sakkelet 05-06/1999
Spezielle ehrende Erwähnung

(12+2) cooked
s#8

Korrektur (+wBd3) wo erschienen?
1. Td4 Lxb7 2. Dg3+ Kxf1 3. Dh3+ Kf2 4. Sd3+ Kxe2 5. Sc1+ Kf2 6. Lg3+ Kxf3 7. Lh2+ Kf2+ 8. Dg2+ Lxg2#
play all

Cook: Schwarz hat keinen letzten Zug, damit ist die Aufgabe UNLÖSBAR! (Schrecke)

Anton Baumann: Da war keine Retro-Aufgabe beabsichtigt!
Der wBe3 wurde nachträglich ergänzt zur Verhinderung der NL 1.e4! Lxb7 2.La6,Lg3+
Aber damit hat Schwarz keinen letzten Zug mehr. Besser ist daher: +sBe3 statt wBe3;
dann ist es zwar kein s Minimal mehr, aber wenigstens legal und C+ (Gustav 4.2a) (2024-04-01)
A.Buchanan: Looks like a good fix (2024-04-02)
more ...
comment

Keywords: Illegal position, Minimal, Switchback (DkSkLk)
Genre: s#, Retro
FEN: b7/1P6/8/8/7P/4PP1Q/2N1Pk1B/2NR1B1K
Input: Frank Müller, 2013-02-10
Last update: A.Buchanan, 2024-04-02 more...

49 - P1268348
Theodor Steudel
F7 Problemkiste (93) 06/1994

(2+4)
ser-h=4*

* 1. ... Df2=
1. g1=S 2. Se2 3. Sf4 4. Sg2 Df2=
play all

Anton Baumann: C+ Gustav 4.2a (2022-11-18)
comment

Keywords: Seriesmover, under-promotion (s), Minimal (D), Miniature, under-promotion key, pin-stalemate, Round Trip (b/s-4), Rückkehr nach Umwandlung
Genre: Fairies
FEN: 8/8/8/4K3/8/4Q2p/6pk/7b
Input: Erich Bartel, 2013-04-25
Last update: Gunter Jordan, 2022-11-19 more...

50 - P1269093
Horst Böttger
617 idee & form , p. 1266, 04/1995

(8+8)
#6

1. c4+? Lxc4!
1. Sh5! droht 2. Sf6#
1. ... Ke4 2. Sd4 Kd5 3. b4 axb3ep 4. Se6 Ke4 5. Sg3+ Kd5 6. c4#
play all

SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-02-09)
comment

Keywords: Preplan, Switchback, En passant
Genre: n#
FEN: 1B5K/1p6/4N3/1B1k1Pp1/p7/2P1ppN1/bP2p3/8
Input: Felber, Volker, 2013-05-02
Last update: Rainer Staudte, 2016-01-23 more...

51 - P1272676
Horst Böttger
2271 Rochade Europa , p. 49, 01/2008

(4+8)
h#5

1. Sd3 Sxa4 2. Se5 Sb2 3. Sf7 gxf7 4. cxb2 f8=D 5. Ka4 Db4#
play all

Sally: Kniest-Thema, aber aufgrund der Temponot muss der s. Springer zurückkehren, "b2" ist das einzige Feld, auf dem er geschlagen werden kann., dazu gibt es Mstermatt. (2018-06-09)
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-08-01)
comment

Keywords: Promotion (D), Kniest Theme, Model mate, Switchback (S)
Genre: h#
FEN: 8/6p1/6P1/k7/p7/P1p3p1/1N4p1/4n1Kb
Input: Felber, Volker, 2013-06-21
Last update: Gunter Jordan, 2022-08-01 more...

52 - P1280775
Reinhardt Fiebig
1291 harmonie , p. 50, 06/2007

(2+8)
h#5

1. Kb2 Kg7 2. Kc3 Kxf6 3. Kd4 Kg7 4. Ke5 Kh8 5. Kf6 Dd6#
play all

Aus der LB zu P1241521: 'Königsrundlauf, optisches Mattkreuz. Co-Autor RF, der noch seine ursprüngliche Fassung der Idee mitsandte."
SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-12-22)
comment

Keywords: Minimal (D), Switchback (K), Kniest Theme, Model mate
Genre: h#
FEN: 5Q1K/5p1b/5p2/5ppq/8/8/8/k4n2
Input: Felber, Volker, 2013-11-26
Last update: Gunter Jordan, 2021-12-22 more...

53 - P1282567
Theodor Steudel
Problemkiste 12/1992

(2+2)
ser-h#8
Platzwechselcirce
wSU=Nachtreiter

1. h5! 2. h4 3. h3 4. h2 5. h1=N 6. Ne7 7. Nxd5[+wNe7] 8. Nh7 Ng6#
play all

Hübsche Rückkehr durch Rundlauf nach Exzelsior.
SCHRECKE: C+, popeye 4.87 (2022-10-23)
comment

Keywords: Seriesmover, Excelsior, Round Trip, Promotion (Märchen-), Rückkehr nach Umwandlung, Interchange Circe
Pieces:

= Nightrider (N)
Genre: Fairies
FEN: 7k/5K1p/8/3*2N4/8/8/8/8
Reprints: U6 Problemkiste (158) 04/2005
143 Scobs lignea 23/07/2017
Input: Erich Bartel, 2014-01-27
Last update: Arnold Beine, 2022-10-23 more...

54 - P1284430
Uwe Karbowiak
4026 Sächsische Zeitung 05/04/2014

(6+11)
#11

1. Sb6+? Kb5 2. Sd7+ Kc4 3. Se5+ Sxe5!
1. Tb4+? Ka5 2. Tf5 e5,e6 3. Tf7? Lxb4!
1. Tb4+? Ka5 2. Txe7? Lxe7+!

1. Tb4+! Ka5 2. Tf5 e6 3. Tb6+ Ka4 4. Tf7 Le7+ 5. Txe7 Sxe7 6. Tb4+ Ka5 7. Tb7+ Ka4 8. Sb6+ Kb5 9. Sd7+ Kc4 10. Se5+ Kc5 11. Lb4#
play all

Versuchen wir uns in diese „geradlinige, logische Mattführung“ (S.Borchardt, Radeberg) hinein zu vertiefen: Der Hauptplan 1.Sb6+? Kb5 2.Sd7+ Kc4 3.Se5+ scheitert an 3...S:e5! und 1.Tf5? ist zu langsam, während zuerst 1.Tb4+? Ka5 2.Tf5 e5,e6 3.Tf7? L:b4! erlaubt. Natürlich geht auch 1.Tb4+? Ka5 2.T:e7? wegen 2...L:e7+! nicht. Deshalb 1.Tb4+! Ka5 2.Tf5 (3.T:d5+ Ka6 4.Tb6 matt) e6 (nicht 2...e5? 3.Tb7+ Lb4 4.L:b4+ Ka4 5.Tf6 b2 6.Ld2 nebst 7.Ta6 matt) 3.Tb6+ Ka4 und nun droht nach der Rückkehr 4.Tf7 sofort 5.Ta7 matt, und mit 4...Le7+ 5.T:e7 S:e7 wird der Sg6 weggelenkt, wonach das Rückpendel 6.Tb4+ Ka5 7.Tb7+ Ka4 den Hauptplan 8.Sb6+ Kb5 9.Sd7+ Kc4 (9...Kc6? 10.Tb6, 9...Ka4,Ka6 10.Sc5) 10.Se5+ Kc5 11.Lb4 matt erlaubt (4 Punkte) . „Wieder eine tolle neudeutsch-logische Aufgabe mit Turmpendel, Switchback, einer Kombination aus Linienöffnungen und -verstellungen, Turmopfer, Abzugs- und Gegenschach und einem schönen Mustermatt!“ lobte J.Schottenhamel (Ebersbach)

Anton Baumann: C+ Gustav 4.1d (2021-11-19)
comment

Keywords: Pendulum, Switchback, Line opening, Line closing, Discovered check, Gegenschach, Model mate
Genre: n#
FEN: 2NK1b2/1R2pR2/6n1/3p2p1/k7/rp2P3/3Bp1p1/6q1
Input: Felber, Volker, 2014-04-07
Last update: Felber, Volker, 2014-07-26 more...

55 - P1284667
Herbert Kromath
3507 Schach-Echo 6 23/03/1964
1. Preis
Zander-TT, 1963-1964
PR Wilhelm Hagemann + Heinz Zander

(7+8)
#3

1. Dd4! droht 2. Db2 droht 3. Dh2#
2. ... exd3 3. Dd4#
1. ... Sxe5 2. Dd6 Zugzwang exd3 3. Dd4#
play all

Meeraner, Urform, Themafigur: wD
SCHRECKE: C+, popeye 4.87 (2022-12-13)
comment

Keywords: Erweiterte Drohung, Irreparable Drohung, Zander-Thema, Switchback (D), Meerane-Thema, Rücknahme Schlüsselzug
Genre: 3#
FEN: 8/3p4/3Qp1nB/1K2Ppp1/4pk1p/3PN2R/8/8
Reprints: 1 Die Schwalbe 297, p. 129, 06/2019
Input: Felber, Volker, 2014-04-26
Last update: Rainer Staudte, 2022-12-13 more...

56 - P1287214
Fritz Apscheneek
27 Nedela (Riga) 01/04/1923

(9+5)
s#3

1. Sf7 Lb8 2. Tc7+ Kxc7 3. La7 Lxa7#
play all

SCHRECKE: C+, popeye 4.89 (2023-12-14)
comment

Keywords: Discovered check, Rook sacrifice, Switchback (l), Model mate
Genre: s#
FEN: 2B5/b2P4/1k6/p1RPN3/P7/4B2p/6pP/6K1
Input: Mario Richter, 2014-08-23
Last update: Gunter Jordan, 2023-12-14 more...

57 - P1288711
Claus Grupen
2424 Landeszeitung für die Lüneburger Heide 2014

(6+4)
#10

1. Kf3 Kc4 2. e4 Kd4 3. Kf4 Kc4 4. Ke3 Kb5 5. e5 Kc4 6. Ke4 Kb5 7. e6 Kc4 8. e7 Kb5 9. e8=S Kc4 10. Sd6#
play all

SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-07-08)
more ...
comment

Keywords: under-promotion (S), Excelsior white, Switchback (Kk), Round Trip (K-3)
Genre: n#
FEN: 8/8/p1p5/PkN5/1P6/p3K3/N3P3/8
Input: Frank Müller, 2014-09-29
Last update: Gunter Jordan, 2024-02-19 more...

58 - P1302572
Zdravko Maslar
16286 Die Schwalbe 272, p. 89, 04/2015
5. Preis
PR Boris Schorochow

(9+9)
h#18

1. Kg8 La2 2. Kf8 Lb1 3. Ke8 La2 4. Kd8 Lb1 5. Kc7 La2 6. Kd6 Lb1 7. Kxe6 La2 8. Kf5 Lb1 9. Kg4 La2 10. Kxh5 Lb1 11. Kg4 La2 12. b1=S h5 13. Sa3 Lb1 14. Sxc2 Lxc2 15. Kg5 Lg6 16. hxg6 h7 17. Kh6 Kc2 18. g5 h8=D#
play all

Hierzu gibt es eine Version von ZM, siehe P1398829.

Hans-Jürgen Manthey: Gustav lösst in 2,97 sekunden! brute force, zugzahl unbekannt.
1. Kh8-g8 Lb1-a2 2. Kg8-f8 La2-b1 3. Kf8-e8 Lb1-a2 4. Ke8-d8 La2-b1 5. Kd8-c7 Lb1-a2 6. Kc7-d6 La2-b1 7. Kd6xe6 Lb1-a2 8. Ke6-f5 La2-b1 9. Kf5-g4 Lb1-a2 10. Kg4xh5 La2-b1 11. Kh5-g4 Lb1-a2 12. b2-b1S Bh4-h5 13. Sb1-a3 La2-b1 14. Sa3xc2 Lb1xc2 15. Kg4-g5 Lc2-g6 16. Bh7xg6 Bh6-h7 17. Kg5-h6 Kd1-c2 18. Bg6-g5 h7-h8D# (2021-03-25)
more ...
comment

Keywords: Promotion in the mating move, Promotion (D), under-promotion (s), Switchback (L), Selfblock, Antiphönix, Entblockung, Tempo Loss, konsekutive Umwandlungen 2 (sD)
Genre: h#
FEN: 7k/4p2p/4P2P/4p2P/1p5P/1Pp1p3/1pPpP3/1B1K4
Input: Felber, Volker, 2015-05-06
Last update: Gunter Jordan, 2022-02-02 more...

59 - P1315401
Sergii I. Tkachenko
11649 Schach-Echo , p. 347, 09/1991

(7+8)
h#15

1. Lf2 a3 2. Le1 Kg1 3. Ld2 Kh1 4. Lc1 Kg1 5. Lxa3 Kh1 6. Lc5 Kg1 7. a3 Kh1 8. a2 Kg1 9. a1=S Kh1 10. Sb3 cxb3 11. c2 b4 12. c1=T bxc5 13. Tb1 c6 14. Tb7 c7 15. Ta7 c8=D#
play all

Schachecke in SE ab 01/1992 eingestellt. Lösung bis 12/1991 nicht veröffentlicht.

Henrik Juel: solution
1.Lf2 a3 2.Le1 Kg1 3.Ld2 Kh1 4.Lc1 Kg1 5.Lxa3 Kh1 6.Lc5 Kg1 7.a3 Kh1 8.a2 Kg1 9.a1=S Kh1 10.Sb3 cxb3 11.c2 b4 12.c1=T bxc5 13.Tb1 c6 14.Tb7 c7 15.Ta7 c8=D#
Three promotions (2016-01-13)
SCHRECKE: Ab 6. Zug dualistisch, z.B.: 6. Lb4 Kg1 7. a3 Kh1 8. a2 Kg1 9. a1=S Kh1 10. Sb3 cxb3 11. Ld6 b4 12. c2 b5 13. c1=S b6 14. Sxe2 Lxe2 15. Lb8 Lf3# (2023-07-24)
comment

Keywords: Promotion in the mating move, konsekutive Umwandlungen 3 (stD), Switchback (K), Entblockung, Selfblock, Corner mate, Excelsior white, Antiphönix
Genre: h#
FEN: k7/8/p7/8/p2p4/2pPp1p1/P1P1P1P1/5BbK
Input: Felber, Volker, 2016-01-13
Last update: Gunter Jordan, 2023-07-23 more...

60 - P1334004
Mykhailo Marandyuk
Evgen S. Orlov
C015 SuperProblem (Website) 24/06/2014
1.-3. Preis (#7-N)

(11+11)
#12

1. Lc7! droht 2. Sg5#
1. ... Lh4 2. Le5 droht 3. Txd4#
2. ... Lf2 3. Lb8 Lh4 4. La7 b6 5. Lxb6 Lf2 6. Lc7 Lh4 7. Le5 Lf2 8. Lb8 Lh4 9. La7 Lf2 10. Lf5+ Kxd5 11. Tb5+ Kc6 12. Tc5#
play all

Michael Herzberg: ...siehe P1378921 (2022-09-08)
Anton Baumann: C+ Gustav 4.2a (2023-04-11)
comment

Keywords: Switchback, Model mate
Genre: n#
FEN: K7/1p2pN2/1B2B3/3P3n/1R1pkpP1/P7/PpbPPb2/1q3r2
Input: Felber, Volker, 2017-05-12
Last update: Alfred Pfeiffer, 2017-05-15 more...

61 - P1334345
Anatoli G. Jepifanow
11873 Ideal-Mate Review 83 07-09/2001
Ehrende Erwähnung
PR: Eugene Albert

(3+3)
h#3
Vertikalzylinder
b) sKc6->f6

a) 1. Lc5 Sg6 2. Kd5 Kd3 3. Lc6 Sf4#
b) 1. Lf5 Sb6 2. Ke5 Ke3 3. Lf6 Sc4#
play all

paul: Jacobi+ (2021-10-17)
comment

Keywords: Aristocrat, Ideal mate, Miniature, Twin, Switchback, Selfblock
Genre: Fairies
FEN: b6b/8/2k5/8/2N2N2/8/4K3/8
Input: Gunter Jordan, 2017-05-23
Last update: Alfred Pfeiffer, 2017-06-23 more...

62 - P1338691
Zlatko Mihajloski
H4045 The Problemist 26-3, p. 105, 05/2017

(2+12)
h#5

1. Lb2 Tg4 2. Df8 Kg3 3. Kb4 Kf4 4. Kc3 Ke5 5. Db4 Tg3#
play all

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-05-25)
comment

Keywords: Switchback (d,T), Klasinc theme (T-K, d-k), Model mate, Unpinning, Remote selfblock, Line closing, Selfblock, Model mate, Minimal (T)
Genre: h#
FEN: 8/5p2/8/kb2b3/pqp4r/6Rp/2pp1p1K/8
Reprints: zu 917A mpk-Blätter 129 07/2020
Input: A.Buchanan, 2017-09-04
Last update: Gunter Jordan, 2021-05-24 more...

63 - P1340215
Roberto Osorio
Jorge Joaquin Lois
R470 The Problemist vol.24-8, p. 341, 03/2014
after Satoshi Hashimoto
Lob
The Problemist 2013-2014

(15+9)
PG in 18.5

1. d3 g5 2. Lxg5 Lg7 3. Dd2 Lc3 4. Sxc3 c5 5. 0-0-0 Dc7 6. Sb1 Dg3 7. hxg3 h6 8. Txh6 b6 9. Te6 Th3 10. gxh3 Lb7 11. Lg2 Lf3 12. Sxf3 Sf6 13. Th1 Se4 14. Dd1 Sd2 15. Kxd2 fxe6 16. Ke1 Kf7 17. Lc1 Kf6 18. Sg1 Ke5 19. Lf1
play all

Judge's comment [Thomas Brand]: "This elegant proof game seems me original enough compared with Hashimoto's Probleemblad 1999, 3rd Prize, (PDB P1000642), even though the theme is not doubly set. The only missing white man is a Rook captured at e6, but Ra1 could not leave home."
Henrik Juel: The white plan is obvious, and Black ensures uniqueness by putting his men to be captured on squares, where White can go anyway, and by a late king's walk
This proof game is an enjoyable solving object showing that man can beat the computer; Euclide was still trying to find a strategy (a list of moves, possibly infeasible, that leads to the diagram position), when I had solved the problem and written the present lines...
You might call Pg3,h3 impostors also, as well as Th1 (2017-09-27)
Moldenhauer: Computerprüfung: C+ Natch 3.3 in 5 Std. 57 Min. nur obige Lösung
BP in 17.5 keine Lösung. (2022-09-05)
more ...
comment

Keywords: Unique Proof Game, Impostor (TPP), Switchback (SLDKLS), Cross-capture (gh)
Genre: Retro
FEN: rn6/p2pp3/1p2p3/2p1k3/8/3P2PP/PPP1PP2/1NBQKBNR
Reprints: R470 The Problemist vol.25-8, p. 347, 03/2016
Input: A.Buchanan, 2017-09-27
Last update: Alfred Pfeiffer, 2019-06-03 more...

64 - P1344884
Rainer Staudte
18729 Schach 01/2018

(4+4)
Remis

1. Kc6 Sf2 2. Kb7 Sg4 3. Kxa8 Sxh6 4. Kb7 Sf7 5. Kc6 h5,Se5+ 6. Kd5 h4,Se5 7. Ke4 h3 8. Kf3 h2 9. Kg2 h1=D+ 10. Kxh1
4. ... Sf5 5. Kc6 h5 6. Kd5 h4 7. Ke4 h3 8. Kf3 h2 9. Kg2 h1=D+ 10. Kxh1
9. ... Sg3 10. Kxh2
4. ... Sg4 5. Kc6 h5 6. Kd5 h4 7. Ke4 h3 8. Kf3 h2 9. Kg2 h1=D+ 10. Kxh1
9. ... Sf2 10. Kxh2
1. ... Sg3 2. Kb7 Sf5 3. Kxa8 Sxh6 usw.
play all

more ...
comment

Keywords: corner to corner, Rückkehr nach Umwandlung (K), Grab (s)
Genre: Studies
FEN: n5kB/6Pp/7P/3K4/8/8/8/7n
Input: Rainer Staudte, 2017-12-23
Last update: Rainer Staudte, 2024-04-01 more...

65 - P1346531
Olaf Jenkner
1609 Gaudium 188 02/2018

(3+6)
ser-!#13

1. d4 2. dxc5 3. c6 4. c7 5. c8=S 6. Se7 7. Sxg6 8. Sf4 9. Sd3 10. Sxb2 11. Sc4 12. Sd2 13. 0-0-0#
play all

Wie erwünscht, provozierte diese Aufgabe eine Unmenge von Kommentaren, die ich aus Platzgründen nur teilweise und ggf. gekürzt wiedergeben kann:
“Ser-!# war 2009/10 das Thema bei Chessproblems.ca. Da gab es zahlreiche gelungene Aufgaben, aber keine, die eine Rochade enthält.” [Alfred Pfeiffer]
“Come-back zum Feld d2 nach Unterverwandlung. Fantastische Idee!” [HK]
“Eine interessante, mir noch nicht aufgefallene Forderung, die sofort zum Mitmachen anregt.” [KF]
“Hat mir viel Freude bereitet, ganz tolle Knobelei!!” [BL]
“Eine interessante Aufgabe, die man mit viel Überlegen vom Blatt lösen konnte.” [JB]
“Dass Weiß bei dieser Forderung im letzten Zug ins Schach ziehen darf, geht mir irgendwie gegen den Strich.” [BS]
Daniel Papack schrieb einen längeren Kommentar, in dem er die häufige Darstellung von Märchenschachelementen in Aufgaben kritisiert, die auch mit klassischen Forderungen bzw. Elementen komponierbar sind. Er gab zu obiger Aufgabe ein ähnliches Beispiel als ser-h# an. Grundsätzlich hat er natürlich Recht, auch mir stößt das häufig auf. Für dieses konkrete Beispiel würde ich dies aber nicht anwenden wollen, denn: “Wie so häufig, habe ich mein Problem zum Testen von Gustav gebaut. Ich wollte prüfen, ob die Rochade im Mattzug korrekt funktioniert. Dabei ist was Hübsches rausgekommen.” [Autor]
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-03-15)
comment

Keywords: Excelsior white, Castling, under-promotion (S), Model mate, Line opening, Seriesmover, Round Trip, Rückkehr nach Umwandlung, Eigenmatt, Castling as mating move, Selfblock
Genre: Fairies
FEN: 8/7b/6p1/2p5/6k1/b7/1n1P4/R3K3
Input: Olaf Jenkner, 2018-02-04
Last update: Gunter Jordan, 2022-03-15 more...

66 - P1355696
Wilfried Neef
4240 Sächsische Zeitung 23/06/2018

(8+10)
#11

1. La1! Ke3 2. Ld4 Kd3 3. Lb2 Ke3 4. Lc1 Kd3 5. Sf2 Kc3 6. Ke4 d5 7. Kxd5 d6 8. Ke4 d5 9. Ke5 d4 10. Kd5 d3 11. Se4#
play all

„Der FIDE - Meister im Lösen von Schachproblemen zeigt eine knifflige Aufgabe. Die Mattführung erfolgt zentrumsnah in einer lupenreinen Zugsequenz.“ (K.Keller, Ulm) 1.La1! Ke3 2.Ld4+ Kd3 3.Lb2 Ke3 4.Lc1+ Kd3 5.Sf2+ Kc3 6.Ke4 d5+ 7.K:d5 d6 8.Ke4 d5+ 9.Ke5 d4 10.Kd5 d3 11.Se4 matt (4 Punkte) V.Zipf (Erfurt) meint zwar: „Hat außer Schwierigkeit nichts zu bieten, vor allem keine Struktur.“, doch kam es dem Autor auf die Rückkehr dreier weißer Figuren mit Königsrundlauf an.

Comments:

Author – Wilfried Neef (Ulm, Germany)
Yet Another Chess Problem Database (461231)

Anton Baumann: C+ Gustav 4.2a (2021-12-22)
comment

Keywords: Round Trip (k), Switchback
Genre: n#
FEN: 8/3p2p1/p2p2Pb/Pp1K2p1/1p2N1p1/1P1k2P1/1B6/3B4
Input: Felber, Volker, 2018-09-30
Last update: Kurt Keller, 2018-10-02 more...

67 - P1358021
Daniele Gatti
1721 Gaudium 197 21/11/2018

(5+2)
s#12

1. Sf7?
1. Sg6! Sf2 2. Da3+ Sd3 3. Le2 Kh3 4. Se5 Kg3 5. Sc4 Kh3 6. Sb2 Kg3 7. Sd1 Kh3 8. Kh1 Kg3 9. Tg4+ Kh3 10. Tg1 Kh4 11. De7+ Kh3 12. Sf2+ Sxf2#
play all

Anton Baumann: C+ Gustav 4.2a (15,1 h) (2022-05-18)
comment

Keywords: Aristocrat, Miniature, Minimal (s), Switchback (D,k,s), Model mate, Corner mate, Selfblock
FEN: 7N/4Q3/8/8/4R1B1/6k1/8/6Kn
Input: Rainer Staudte, 2018-11-25
Last update: Gunter Jordan, 2019-06-25 more...

68 - P1358867
Michael Herzberg
4171 idee & form 139, p. 4702, 07/2018

(13+8)
#10

1. Sxf3+?

1. Lb3+?,Lf7+?

1. Tb5! droht 2. Lb6+ Kxe5 3. Lc4+ Ke4,Kf4 4. Td4#
1. ... Lxb5 2. Lb6+ Kxe5 3. Lc7+ Kd4 4. Lb3+ Ke4 5. d3+ Lxd3 6. Ld5+ Kd4 7. Lf7+ Ke4 8. Sf6+ exf6 9. Ld5+ Kd4 10. Sxf3#
play all

Anton Baumann: C+ Gustav 4.1d (2021-09-18)
comment

Keywords: Obvious promotion (Lc7), Battery play, Switchback, Beseitigung hinderlicher Masse, Treffpunkt
Genre: n#
FEN: 5qN1/2BRp1r1/1RP5/3BP3/1P1k2P1/r4p2/1P1P1K2/n3Nb2
Input: Felber, Volker, 2018-12-21
Last update: Felber, Volker, 2018-12-21 more...

69 - P1361354
Sergey Smotrov
2138 The Macedonian Problemist 55-56 01-08/2018

(4+6)
s#16

1. Dd6+ exd6+ 2. Kf4!
1. Dd4+! Kc6 2. Tb6+ Kc7 3. Dc5+ Kd7 4. Tb7+ Ke8 5. Tb8+ Kd7 6. Da7+ Kc6 7. Tb6+ Kc5 8. Lb4+ Kc4 9. Da6+ Kb3 10. Le1+ Kc2 11. De2+ Kc1 12. Ld2+ Kc2 13. Lf4+ Kc3 14. Dd2+ Kc4 15. Tb4+ Kc5 16. Dd6+ exd6#
play all

Henrik Juel: 3... Kd8+ 4.Tb8+ and s#15 (2023-12-08)
Henrik Juel: Popeye 4.61 with 'non 1 1 thr 0' founnd no flaws (2023-12-08)
comment

Keywords: Perpetual check, Checking key, Switchback (DTk), Logical Problem
Genre: s#
FEN: 7r/4pppb/8/B1k1K3/1R6/8/3Q4/8
Input: Marcin Banaszek, 2019-02-20
Last update: Gunter Jordan, 2023-12-08 more...

70 - P1371278
Dieter Müller
Sven Trommler
Probleemblad 2003
2. Lob
Tim Krabbe-60

(9+7)
#5

1. Lg2! droht 2. e4 ... 3. Lh3#
1. ... Sa6 2. Sf4+ Ke5 3. Sxd3+ Ke6 4. Sf4+ Ke5 5. d4#
1. ... Lb7 2. Sf8+ Ke5 3. Sxd7+ Ke6 4. Sf8+ Ke5 5. d7#
play all

SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-07-21)
comment

Keywords: Batteriematt diagonal, discovered checkmate, Switchback (Sk), Entblockung, Pawn mate
Genre: n#
FEN: 2b5/2Bp4/1p1Pk1NN/6Pp/1n6/3pPB2/3P4/1K6
Input: Felber, Volker, 2020-01-01
Last update: Gunter Jordan, 2023-07-21 more...

71 - P1380824
Sergey Smotrov
1374 Rochade Europa 05/1997

(5+11)
s#19

1. Lxg6+? Sxg6+ 2. Kc7!
1. Lf5-g4+! Kh5-h4 2. Le3-f2+ Kh4-g5 3. Lg4-e6+ Kg5-h5 4. Tg2-h2+ Kh5-g5 5. Lf2-h4+ Kg5-h5 6. Lh4-e1+ Kh5-g5 7. Th2-g2+ Kg5-h5 8. Le6-g4+ Kh5-g5 9. Lg4-e2+ Kg5-f5 10. Tg2-f2+ Kf5-g5 11. Td4-g4+ Kg5-h5 12. Tg4xc4+ Kh5-g5 13. Tc4-g4+ Kg5-h5 14. Tg4-d4+ Kh5-g5 15. Tf2-g2+ Kg5-f5 16. Le2-g4+ Kf5-g5 17. Le1-h4+ Kg5xh4 18. Lg4-f5+ Kh4-h5 19. Lf5xg6+ Se7xg6#
play all

Henrik Juel: Popeye 4.61 with 'opt non 0 1 thr 0' found no flaws (2020-10-11)
comment

Keywords: Logical Problem, Switchback (TTL, k), Line opening, discovered checkmate, Batteriematt diagonal, Battery creation, Discovered check, Checking key, Perpetual check
Genre: s#
FEN: 5q2/3pn3/1n1K1ppp/b4B1k/2pR4/4B3/6R1/2r5
Input: Marcin Banaszek, 2020-10-11
Last update: Gunter Jordan, 2020-10-11 more...

72 - P1382349
Topi Romano
4 L'Album Roma 02/10/1847

(8+7)
#3

1. De7+ Dxe7 Tb8+ Dd8 3. Sf6#
play all

im 'Album Roma' nicht explizit als Urdruck deklariert
SCHRECKE: C+, popeye 4.85 (2020-11-24)
comment

Keywords: Checking key, Sacrifice key, Switchback (d), pin-mate
Genre: 3#
FEN: 3qk2r/3p1p2/4p3/7r/1Q2N3/B7/1R2PPP1/5K2
Input: Mario Richter, 2020-11-24
Last update: Gunter Jordan, 2020-11-24 more...

73 - P1383311
Jochen Schröder
18225 Die Schwalbe 303 06/2020

(4+7) cooked
hs#9 0.1;1.1;...

1. ... La8 2. Kf2 Kb7 3. Kf3 hxg3 4. Ke4 Ka7+ 5. Kxd4 Lh1 6. Kc5 g2 7. Kc6 g1=D+ 8. Kc7 La8 9. Lc5+ Dxc5#
play all

SCHRECKE: 1. ... La8 2.Kf2 Kb7 3.Kf3 h:g3 4.Ke4 Ka7+ 5.K:d4 Lh1 6.Kc5 g2 7.Kc6 g1D+ 8.Kc7 La8 9.Lc5+ D:c5#
Nebenlösungen (von den Schwalbe-Lösern KHS+WW gefunden):
1. ... La8 2.g4 Kb7 3.Kh1 h3 4.g5 h2 5.g6 a5 6.g:f7 Sd7 7.Lc5 Sf6 8.f8D Sg4 9.Dc8+ K:c8#
1. ... Se5 2.La3 Sc4 3.d:c4 La8 4.c5 Se6 5.c6 Sf4 6.c7 Kb7 7.Lc5 h:g3 8.Kh1 Se2 9.c8D+ K:c8# (2020-12-26)
comment

Keywords: Promotion (d), corner to corner (l), Schlüssel = Eckzug, Indian, Switchback (l), Rücknahme Schlüsselzug
Genre: Fairies
FEN: 2k2n2/5n2/p2B4/8/3p3p/3P2P1/8/6Kb
Input: Gerd Wilts, 2020-12-23
Last update: Gunter Jordan, 2020-12-27 more...

74 - P1383362
Sergey Smotrov
18013 Die Schwalbe 300 12/2019
Spezialpreis
PR Mark Erenburg
WCCI=7

(7+9)
s#20

1. De5+? fxe5 2. Kg4,Kg5!
1. Td3+! Kc4 2. Ta3+ Kd4 3. Sc2+ Kd5 4. Lg2+ Kc4 5. Dc8+ Kb5 6. Sc3+ Kb6 7. Db7+ Kc5 8. Se4+ Kc4 9. Da6+ Kd5 10. Sxf6+ Kc5 11. Se4+ Kd5 12. Sc3+ Kc5 13. Db5+ Kd6 14. Db8+ Kc5 15. Sa4+ Kc4 16. Lf1+ Kd5 17. Sb4+ Kd4 18. Td3+ Kc4 19. Tf3+ Kd4 20. De5+ Lxe5#
play all

1. Returns of white figures
2. Logic capture Pf6
3. The cross closed ring maneuver
White Q b8 – c8 – a6 – b5 – b8
4. Active blocking Rf3

more ...
comment

Keywords: Perpetual check, Checking key, Switchback (DTLSSk), Logical Problem
Genre: s#
FEN: 1Q3nr1/3pp1b1/5p1r/5P2/NN1k1K2/5R2/8/5B1n
Input: Gerd Wilts, 2020-12-25
Last update: Marcin Banaszek, 2022-09-02 more...

75 - P1384273
Zlatko Mihajloski

JT Aleksey Borisenko-80 2017
2. Preis

(2+12)
h#6

1. Dh1 Ld8 2. Kg2 Ke7 3. Kf3 Kf6 4. Ke4 Kg5 5. Ke5 Le7 6. De4 Lf6#
play all

Henrik Juel: C+ Popeye 4.61 (2020-12-27)
comment

Keywords: black Bristol, white Bristol, Klasinc theme (L-K, d-k), Minimal (L), Switchback (Ld), Schlüssel = Eckzug, Selfblock, Tempo Loss
Genre: h#
FEN: 7n/3K4/3ppBp1/3p4/3pq3/1n1rp3/5b2/6k1
Input: Gunter Jordan, 2020-12-27
Last update: Alain Brobecker, 2021-10-22 more...

76 - P1384783
Fadil Abdurahmanovic
Boris Shorokhov
Shakhmatnaya Kompozitsiya 138 2017
2. ehrende Erwähnung

(5+12)
h#4

1. b1=S g5 2. Sxd2 0-0-0 3. Sb1 Td7 4. Le1 Lh3#
play all

SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-31)
comment

Keywords: Unpinning, Klasinc theme (s-K/T), Line opening, Line opening, Line closing, Model mate, Castling, Switchback (s), under-promotion (s), under-promotion key
Genre: h#
FEN: 8/8/4k3/pp2p3/1pb1p1P1/2b2pp1/1p1P4/R3KBr1
Input: Gunter Jordan, 2020-12-31
Last update: Gunter Jordan, 2020-12-31 more...

77 - P1385127
Fadil Abdurahmanovic
H854 Problem Paradise 2016

(5+12)
h#3
2.1...

1) 1. Txb5 Kh7 2. De6 Kh6 3. Te5 c3#
2) 1. Dxc2 Kg8 2. Te3 Kf7 3. De4 b6#
play all

Reziproker Klasinc,

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-01-07)
comment

Keywords: discovered checkmate, Battery mates, Exchange of roles (T-L d-t), Klasinc theme (t-d,d-t), Liniensperrung (in 2), Switchback (t,d), Capture key, Selfblock (in 1)
Genre: h#
FEN: 7K/8/5p2/RP2rk1n/p1p1qpp1/8/2P4p/1B4br
Reprints: feenschach 227, p. 223-228, 11-12/2017
Input: Gunter Jordan, 2021-01-07
Last update: Gunter Jordan, 2023-08-02 more...

78 - P1385134
Fadil Abdurahmanovic
Orbit 2014

(6+9)
h#4
0.2.1...

1) 1. ... Th4-g4 2. Kxf3 Th4+ 3. Kg3 Lxe2 4. Th2 Th4-g4#
2) 1. ... Lh5-g4 2. Kxf4 Lh5+ 3. Kxf5 Te4 4. Tf6 Lh5-g4#
play all

Meeraner, Urform, doppelt gesetzt, Themafigur: wT & wL
Reziproker Klasinc.

Henrik Juel: many cooks, e.g. 1...Bh5*g6 2.e2-e1=B f5-f6 3.Ke3-e2 Rh4-g4 4.Ke2-f1 Bg6-d3 #
probably diagram error (2021-01-07)
SCHRECKE: Mit sSe2 ist es C+. (2021-01-08)
comment

Keywords: Exchange of roles (T-L), Klasinc theme (T-L, T-k in 1), Meerane-Thema, Model mate (in 1), Switchback (T in 1, L in 2), Rücknahme Schlüsselzug, x pieces move to one square (2+2), Klasinc theme (L-T, L-k in 2)
Genre: h#
FEN: 8/2p5/2r3pK/5P1B/5P1R/2p1kP1p/4pp2/7r
Reprints: feenschach 227, p. 223-228, 11-12/2017
Input: Gunter Jordan, 2021-01-07
Last update: Gunter Jordan, 2021-01-07 more...

79 - P1385197
Michael McDowell
British Chess Magazine 2012-2013
2. Preis

(8+9)
h#4

1. Lb1 Lf1 2. Lxe4 Ld3 3. Ld5 Lg6 4. Le4 Lh5#
play all

Reziproker Klasinc.

Henrik Juel: C+ Popeye 4.61 (2021-01-09)
comment

Keywords: Klasinc theme (L-l, l-L), Model mate, Switchback (Ll), Selfblock
Genre: h#
FEN: 5K2/8/2p1p3/2p1P3/2P1P3/1p1BPk2/b2P1rpP/6r1
Reprints: feenschach 227, p. 223-228, 11-12/2017
Input: Gunter Jordan, 2021-01-09
Last update: Gunter Jordan, 2021-01-09 more...

80 - P1385209
Aleksandr Semenenko

Internationaler Schachkompositionstag 04.01.2021, Abteilung h#n
Spezialpreis
PR Anatoli Karamanitz

(2+10)
h#7
0.1.1...

1. ... Lxg4+ 2. Ke4 Lc8 3. Tg5 Kc2 4. Df4 Kc3 5. Ld7 Kc4 6. Kf5+ Kd5 7. f6 Lxd7#
play all

Henrik Juel: C+ Popeye 4.61 (2021-01-09)
comment

Keywords: Discovered check, bi-coloured Bristol, Remote selfblock, Klasinc theme (k-L, k-d, k-t, k-l), Line opening, Maslar theme, Minimal (L), Switchback (k), Checking key, Capture key, Selfblock
Genre: h#
FEN: 8/5p2/5qp1/2r2k1B/6p1/p6b/8/1Kn3n1
Input: Gunter Jordan, 2021-01-09
Last update: Gunter Jordan, 2021-01-09 more...

81 - P1385210
Viktoras Paliulionis

Internationaler Schachkompositionstag 04.01.2021, Abteilung h#n
5. ehrende Erwähnung
PR Anatoli Karamanitz

(2+6)
h#7

1. Sd7 Lc6 2. Tb4 La8 3. Db7 Kg7 4. Sb6+ Kf6 5. Kc5 Ke5 6. Kb5 Kd6 7. Da6 Lc6#
play all

Henrik Juel: C+ Popeye 4.61 (2021-01-09)
comment

Keywords: Discovered check, Aristocrat, bi-coloured Bristol, Remote selfblock, Ideal mate, Klasinc theme (s-t), Koshakin Theme, Minimal (L), Switchback (s), Rücknahme Schlüsselzug, Check Protection, Selfblock, Voraussperre
Genre: h#
FEN: 7K/1r6/1n6/r7/B1bk4/8/6q1/8
Input: Gunter Jordan, 2021-01-09
Last update: Gunter Jordan, 2021-01-09 more...

82 - P1385315
Fadil Abdurahmanovic
Bernd Ellinghoven
11179 feenschach 213 05-06/2015
3. Preis
Informalturnier 2015
PR Jakob Leck

(3+15)
h#6
0.1.1...

1. ... Lg7 2. Te6 Lxh6 3. Lh8 Lg7 4. Lf5 La1 5. Lc3 dxc3 6. Ke5 c4#
play all

SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-08-14)
comment

Keywords: discovered checkmate, Anti-Bristol, bi-coloured Bristol, Battery creation, Batteriematt diagonal, corner to corner (L-l), Remote selfblock, Indian, Klasinc theme (L-l), Line opening, Model mate, Interchange (L-l), Switchback (L), Selfblock
Genre: h#
FEN: 7B/8/3n1rpr/3k2p1/4pn2/p2p1ppb/3P1p2/b6K
Reprints: 3-3 feenschach 215, p. 254, 09-10/2015
feenschach 239, p. 334, 01-03/2020
Input: Gunter Jordan, 2021-01-12
Last update: Gunter Jordan, 2022-08-14 more...

83 - P1385593
Erich Bartel
Scobs lignea 21/01/2021

(2+1)
#6
wTR=Erlkönig
wLU=Wurzel-25-Springer

1. W2c7-g4! Kc8-b8 2. EKc6-b6 Kb8-a8 3. W2g4-c7 Ka8-b8 4. W2c7-h7 Kb8-a8 5. W2h7-e3 Ka8-b8 6. EKb6-b7#
play all

Henrik Juel: C+ Popeye 4.61 also (2021-01-21)
comment

Keywords: Oneliner (c6c8), Rex solus (s), Aristocrat, Switchback (k)
Pieces:

= Fiveleaper (W2),

= Erlking (EK)
Genre: Fairies
Computer test: Popeye FreeBSD-9.1-RELEASE-amd64-64Bit v4.59
FEN: 2k5/2*2B5/2*1R5/8/8/8/8/8
Input: Erich Bartel, 2021-01-21
Last update: Gunter Jordan, 2021-01-21 more...

84 - P1385832
Kurt Keller
4585 idee & form 149, p. 5047, 01/2021
Weihnachts- und Neujahrsgruss

(10+2)
#5
b) -wBd4
c) ferner -wBb5

a) 1. d6? cxd6 2. b6 d5 3. Lb7 Kb5 4. Kc7 Kc4 5. La6#
4. ... Ka4! 5. Lc6+ Ka3

1. b6! cxb6 2. Kc7 b5 3. Ld7 Kxd5 4. Lf5 Kc4 5. Le6#

b) 1. b6? cxb6!
1. d6! cxd6 2. b6 d5 3. b7 d4 4. b8=D droht 5. Db5#
5. ... dxc3 5. Df4#

c) 1. b5? Kc5!
1. d6! cxd6 2. Kb7 d5 3. La4 d4 4. Lb3+ Kb5 5. a4#
play all

Nr. 4585, K. Keller [Ulm, Germany]: a) 1.d6? c:d6! 1.b6! c:b6 2.Kc7 b5 3.Ld7 K:d5 4.Lf5 Kc4 5.Le6⧧ b) 1.b6? c:b6! 1.d6! c:d6 2.b6 d5 3.b7 d4 4.b8D (5.Db5⧧) d:c3 5.Df4⧧ c) 1.b5? Kc5! 1.d6! c:d6 2.Kb7 d5 3.La4 d4 4.Lb3+ Kb5 5.a4⧧
(Andreas Nievergelt (Winterthur, Switzerland): informalturnier. Lösungen zu Heft i&f 149, in: idee & form 150, p. 5084, April 2021)

Comments:

Author – Kurt Keller (Ulm, Germany)
Yet Another Chess Problem Database (...)

more ...
comment

Keywords: Symbol problem (Christmas tree), Stalemate dissolution, Sacrifice key, Sacrifice of white pieces, Active sacrifice, Switchback (k), Option key, Promotion, Pawn mate (c), Symmetrical position, Asymmetrical solution, Twin (triplet), Minimal
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 2K5/2p5/2B5/1P1P4/1PkP4/2P5/P3P3/2R5
Input: Kurt Keller, 2021-01-27
Last update: Kurt Keller, 2021-04-28 more...

85 - P1385911
Fadil Abdurahmanovic
Bernd Ellinghoven
feenschach 2013
In memoriam Milan Velimirovic
6. ehrende Erwähnung

(4+4)
hs#6
0.1.1...

1. ... Lh3 2. Tf5 Sf6 3. Ke5 Kc5 4. Ke6+ Kd4 5. Kd6 Tg6 6. Td5+ Sxd5#
play all

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-01-28)
comment

Keywords: Discovered check, Battery creation, Batteriematt horizontal, Indian (2 x), Switchback (T)
Genre: Fairies
FEN: 2b5/7n/1k1K4/3R4/8/3P4/3P4/6r1
Reprints: 7 Die Schwalbe 288A, p. lxxxii, 12/2017
Input: Gunter Jordan, 2021-01-27
Last update: Gunter Jordan, 2021-01-27 more...

86 - P1386591
Manfred Ernst
Valery Barsukov
2033v Gaudium 228 15/07/2020

(7+4)
s#6
Längstzüger

1) 1. Se4! Lh8 2. Ta5+ Kxb4 3. Th5 La1 4. Sc3+ Kxc3 5. Th2 Lb2 6. Tc2+ dxc2#
2) 1. Kxa1! d2 2. Td4 d1=S,d1~ 3. Txd1 Kxb4 4. Sd3+ Kc3 5. Tf4 Kc2 6. Sb2 axb2#
play all

Dies ist die optimierte Fassung, welche den vorherigen Einspänner ersetzt. Veröffentlicht in G 240, 30.04.21. Der Ko-Autor VB kam neu hinzu.

Henrik Juel: 2 solutions is missing in the stipulation (2022-06-11)
Henrik Juel: C+ Popeye 4.61 (2022-06-11)
comment

Keywords: Batterietransformation (in 1), Maximummer, Switchback (Tl), corner to corner (l in 1), Discovered check, Pawn mate, Model mate, Schlüssel = Eckzug (in 2), Capture key (in 2)
Genre: Fairies
Computer test: Popeye Windows-64Bit v4.79 (4096 KB)
FEN: 8/8/8/5R2/kP3RP1/p2p4/P4N2/bK6
Input: Gunter Jordan, 2021-02-18
Last update: Gunter Jordan, 2022-06-11 more...

87 - P1387316
Viktor S. Zheglov
Chorno-bili stezhyny 4/53, p. 36, 10-12/2016
1. ehrende Erwähnung
JT Waleri Stankewitsch-85
Abt. Miniaturen
PR Alexandr Semenenko

(2+4)
h#12

1. Kd8 Kb8 2. c5 Ka8 3. c4 Kb8 4. c3 Lc5 5. Dc8+ Ka7 6. c2 Kb6 7. c1=S Kb5 8. Sd3 Kc4 9. Se5+ Kd5 10. Sd7 Ke6 11. Le5 Kf7 12. Lc7 Le7#
S+ opeye 4. 61
play all

Henrik Juel: C+ Popeye 4.61 (2021-03-11)
comment

Keywords: Ideal mate, Miniature, Minimal (L), Switchback (K), Selfblock, under-promotion (s), Liniensperrung, Check Protection
Genre: h#
FEN: K1k5/B7/q1p5/8/3b4/8/8/8
Input: Gunter Jordan, 2021-03-11
Last update: Gunter Jordan, 2021-03-11 more...

88 - P1387414
Norbert Geissler
B mpk-Blätter 135 03/2021

(3+6)
h#4
0.1.1...

1. ... Lh7-g8 2. Lf7 Lg8-h7 3. Le6 Lh7-g8 4. Kxf5 Lg8-h7#
play all

Gestreckter weiß-weißer Meeraner, Themafigur: wL

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-14)
comment

Keywords: Gestreckter Meeraner, Meerane-Thema, Model mate, Switchback (L), Rücknahme Schlüsselzug, Selfblock
Genre: h#
FEN: 8/7B/5p2/4pP1b/4kqpK/8/8/8
Input: Gunter Jordan, 2021-03-14
Last update: Gunter Jordan, 2021-03-14 more...

89 - P1387471
Viktor S. Zheglov
Yuri Paramonov
Chorno-bili stezhyny 4/53, p. 37, 10-12/2016
4. ehrende Erwähnung
JT Waleri Stankewitsch-85
Abt. Miniaturen
PR Alexandr Semenenko

(2+4)
h#13
0.1.1...

1. ... Le3 2. Ke6 Lb6 3. Kd5 Kd7 4. Kc4 Kc6 5. Kc3 Kc5 6. Kb2+ Kb4 7. Ka1 Kb3 8. c5 Kxc2 9. c4 Lc5 10. c3 Kb3 11. c2 La3 12. c1=S+ Kc2 13. Sa2 Lb2#
play all

Henrik Juel: C+ Popeye 4.61 (2021-03-16)
Henrik Juel: Popeye was fooled into searching for a mate in the NE corner, so he spent more than 8 minutes (2021-03-16)
comment

Keywords: Corner mate, Excelsior black, Miniature, Minimal (L), Model mate, Selfblock, under-promotion (s), Liniensperrung, Check Protection, Line opening, Switchback (K)
Genre: h#
FEN: 3K4/2p2k2/q6B/8/8/8/2r5/8
Input: Gunter Jordan, 2021-03-16
Last update: Gunter Jordan, 2021-03-16 more...

90 - P1387491
Ronny Schreiber
10637 Schach 04/1985
Ehrende Erwähnung
Förderungsturnier des DSV, 1984

(6+9)
#7

1. Sxd5+ Ke4 2. Sf6+ Kf4 3. La7 Sc4 4. Sd5+ Ke4 5. S1c3+ Sxc3 6. Lf3+ Kd3 7. Sb4#
play all

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-17)
comment

Keywords: Remote selfblock (ss), Capture key, Preplan, Checking key, Switchback (Sk), Block guiding
Genre: n#
FEN: 1B6/8/5NKp/n2pp3/5k2/6pp/n2pB1P1/3N4
Input: Rainer Staudte, 2021-03-17
Last update: Gunter Jordan, 2021-03-17 more...

91 - P1388104
Viktoras Paliulionis
9031 Seven Chess Notes 179 12/2020
2. Preis
Abt. h#>3
PR Alexander Semenenko

(2+5)
h#6

1. Ld5 Kg3 2. Tb5 Lb8 3. Ta7 Kf4 4. Kb6 Ke5 5. Da6 Kd6 6. Lb7 Lc7#
play all

Henrik Juel: C+ Popeye 4.61 (2021-04-03)
comment

Keywords: Aristocrat, Ideal mate, Klasinc theme (l-d, l-t, l-t), Line opening, Liniensperrung, Miniature, Minimal (L), Switchback (l), Check Protection, Selfblock
Genre: h#
FEN: 1rq5/1bB2r2/k7/8/8/8/7K/8
Reprints: Seven Chess Notes 184, p. 8, 05/2021
Input: Gunter Jordan, 2021-04-03
Last update: Gunter Jordan, 2021-12-13 more...

92 - P1388213
Otto Nerong
2191 Deutsche Schachzeitung 9, p. 312, 09/1966

(2+11)
#6

1. Sd5! Ka3 2. Sc7 Ka2 3. Sxb5 a3 4. Sc7 b5 5. Sd5 b6 6. Sxb4#
play all

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-04-06)
comment

Keywords: Minimal (S), Smothered mate, Block, Switchback (Sk)
Genre: n#
FEN: 8/1p6/1p6/1p6/pp3N2/1p6/krp5/bbK5
Input: Dieter Berlin, 2021-04-06
Last update: Gunter Jordan, 2021-04-06 more...

93 - P1389733
Jeff Coakley
5 Retro Championnat de France RIFACE 2020

(14+14)
KBP in 6,0

1. d3 Sh6 2. Lxh6 e5 3. e3 Lc5 4. Se2 Lxe3 5. Sc1 Lxc1 6. Lxc1 0-0
play all

Moldenhauer: Computerprüfung: C+ Jacobi v0.7.6 beta1 in 7 Min. PG demolition mode (2022-08-07)
comment

Keywords: Unique Proof Game, Castling, Switchback (L)
Genre: Retro
FEN: rnbq1rk1/pppp1ppp/8/4p3/8/3P4/PPP2PPP/RNBQKB1R
Reprints: R5 Phénix 312, p. 12149, 11/2020
Input: A.Buchanan, 2021-05-17
Last update: Gunter Jordan, 2021-05-18 more...

94 - P1390603
Sergey Smotrov
18398 Die Schwalbe 306-1 12/2020
1. Lob
PR Dieter Werner

(4+6)
s#20

1. Df5+! Ke3 2. Te4+ Kd3 3. Tb4+ Ke3 4. Df2+ Kd3 5. Df3+ Kc2 6. Sd4+ Kc1 7. De3+ Td2 8. Se2+ Kc2 9. De4+ Td3 10. Dc4+ Tc3 11. Da2+ Kd3 12. Td4+ Ke3 13. De6+ Kf3 14. Dg4+ Ke3 15. Dxg5+ Kf3 16. Tf4+ Ke3 17. Tg4+ Kd3,Kf3 18. Df5+ Ke3 19. Df2+ Kd3 20. Sc1+ Txc1#
play all

Wenn der sTa2 auf c3 stünde, ginge 1.Sc1+ T:c1#. Um den sTa2 nach c3 hin zu bekommen, sind einige "Klimmzüge", natürlich mit Dauerschach, nötig. Schwierig und schön. (KHS) 1.Df5+ Ke3 2.Te4+ Kd3 3.Tb4+ Ke3 4.Df2+ Kd3 erstes Etappenziel: wTb4 statt wTg4, Grundlage dafür, den sTa2 kunstvoll nach c3 bugsieren zu können: 5.Df3+ Kc2 6.Sd4+ Kc1 7.De3+ Td2 8.Se2+ Kc2 9.De4+ Td3 10.Dc4+ Tc3. Und nun gleichermaßen kunstvoll zurück zur Ausgangsstellung: 11.Da2+ Kd3 12.Td4+ Ke3 13.De6+ Kf3 14.Dg4+ Ke3 15.D:g5+ Kf3 16.Tf4+ Ke3 17.Tg4+ K~ 18.Df5+ Ke3 19.Df2+ Kd3, und schließlich 20.Sc1+ T:c1#.
Ein elegantes Kabinettstückchen, mit 10 Steinen federleicht gebaut!

more ...
comment

Keywords: Checking key, Switchback, Perpetual check
Genre: s#
FEN: 7r/8/2p5/6p1/6Rp/3k4/r3NQ2/4K3
Input: Die Schwalbe, 2021-06-08
Last update: Gunter Jordan, 2023-11-01 more...

95 - P1392166
Valery Surkov
2133 Gaudium 237 28/02/2021

(5+6)
s#18

1. Dd5+? Dxd5#?
1. ... Lxd5!

1. Df2+! Ke4 2. De3+ Kf5 3. Dg5+ Ke4 4. Dg6+ Kd4 5. Dg1+ Ke4 6. Db1+ Kd4 7. Dxb4+ Lc4 8. Dc3+ Ke4 9. Dxc4+ Kf5 10. De6+ Ke4 11. Dg6+ Kd4 12. Dg1+ Ke4 13. Db1+ Kd4 14. Db2+ Ke4 15. Dc2+ Kd4 16. Dc3+ Ke4 17. Df3+ Kd4 18. Dd5+ Dxd5#
play all

Henrik Juel: Popeye 4.61 with 'opt thr 0 non 0 1' (2021-07-27)
comment

Keywords: Preplan, Round Trip (D), Staircase (D), Switchback (Dk), Perpetual check, Logical Problem, Checking key
Genre: s#
FEN: q5b1/7r/3K4/2P1N3/1p1k4/5Q1p/3B4/8
Input: Rainer Staudte, 2021-07-27
Last update: Gunter Jordan, 2021-09-13 more...

96 - P1392668
Wolfgang Eilers
Die Welt 08/1956

(7+6)
#3

1. Dh3! droht 2. Dh8+
1. ... Kxf7 2. De6+ Kxe6 3. e8=D#
1. ... Txe5 2. Sxe5 Sc5 3. Dh8#
play all

Henrik Juel: C+ Popeye 4.61 (except for the double mate threat 1... Txe5 2.Sxe5 thr. 3.Dd7,Dh8#) (2021-08-09)
comment

Keywords: Switchback
Genre: 3#
FEN: 4k3/Kn2PN2/b3QPp1/1pr1B3/4P3/8/8/8
Reprints: 913 Schach-Echo 17, p. 271, 05/09/1956
Input: Dieter Berlin, 2021-08-09
Last update: Rainer Staudte, 2021-08-09 more...

97 - P1392670
Ivan Soroka
2122v Gaudium 236 31/01/2021

(8+10)
s#18

1. Se6! droht 2. Sxd4+ Lxd4#
1. ... Kd5 2. Sg5+ Kc6 3. Se5+ Kc5 4. Lxa7+ Kd6 5. Sc4+ Kc6 6. Sxa5+ Kd6 7. Sc4+ Kc6 8. Se5+ Kd6 9. Lb8+ Kc5 10. Sd3+ Kc6 11. Sb4+ Kc5 12. Se6+ Kc4 13. Sg7+! Kc5 14. Sd3+ Kc6 15. Se5+ Kc5 16. Sd7+ Kc6 17. Sf5 ... 18. Sxd4+ Lxd4#
play all

Dies ist die Korrektur der defekten Erstfassung. Diese Korrektur wurde in Gaudium 244, S. 4, 30/06/2021 veröffentlicht.

Vergleiche auch P1385993.

Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2021-08-10)
Henrik Juel: The animation might work correctly, if 4. La7+ was changed to 4. Lxa7+ (2021-08-10)
comment

Keywords: discovered checkmate, Discovered check, Batteriematt horizontal, Switchback (Sk)
Genre: s#
FEN: 1B4B1/pR1N4/P1k5/p1N5/3p1p2/1p6/1P4pr/1K4bq
Input: Gunter Jordan, 2021-08-10
Last update: Gunter Jordan, 2022-01-07 more...

98 - P1392872
Hans Peter Rehm
Tribuna Sport 1969
3. ehrende Erwähnung

(7+5)
#9

1. La2! b3 2. cxb3 Kd5 3. b4+ Ke5 4. Lb1 Kd5 5. Ld3 Ke5 6. Lh7 Kd5 7. Lg8+ Ke5 8. Kf7 Kd5 9. Kf6#
play all

Als Quelle wird Tribuna Ludu angegeben.
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-08-16)
comment

Keywords: Herlin, Switchback, Indian, Round Trip (L-4), Battery creation, Batteriematt diagonal, Königsbatterie, discovered checkmate
Genre: n#
FEN: 6B1/2p1K3/2p5/2P1k1p1/1p4P1/4PP2/2P5/8
Reprints: Schach-Echo 19, p. 534, 10/1995
Input: Dieter Berlin, 2021-08-16
Last update: Gunter Jordan, 2021-08-17 more...

99 - P1392964
Valery Kirillov
Igor Yarmonov
C374 Problemist Ukrainy 69 07-09/2021
3.-4. Preis

(7+11)
#15

1. Ld7+? Sxd7!
1. Sb5? e1=D!
1. Lb7! Kb3 2. Lc6+ Kxc4 3. Lb5+ Kb3 4. Lxe2+ Ka4 5. Lb5+ Kb3 6. La6+ Ka4 7. Lb7 Kb3 8. Lc8+ Ka4 9. Sb5! Sxd5 10. Ld7! Kb3 11. Sd4+ Kc4 12. Lb5+ Kb4 13. Sc6+ Kb3 14. Lc4+ Kxc4 15. Se5#
14. ... Ka4 15. Lb3#
play all

Judge Yuri Gordian
Award 10/2021

Henrik Juel: Popeye 4.61 with 'opt thr 1' found no flaws (2021-08-20)
comment

Keywords: Logical Problem, Battery creation, Discovered check, Model mate, Switchback (Lk), Model mate
Genre: n#
FEN: 1RB2bb1/K1N5/5n2/p1pP3n/k1P5/8/pBp1p3/2r5
Input: Marcin Banaszek, 2021-08-20
Last update: Gunter Jordan, 2022-07-15 more...

100 - P1393042
Michael Oestreicher
3414 Deutsche Schachblätter 12, p. 63, 12/1987

(9+9)
#4

1. De6! droht 2. De3+ Lxe3 3. Se6+ Ke4 4. Sd6# 1. ... droht 2. Sa5 Kxc5 3. Dxc6+ Kd4 4. Dc3#,Db6#
1. ... Kxc5 2. Dd6+ Kd4 3. Dc5+ Kxc5 4. Se6#
play all

Henrik Juel: Dual 1.De6 Dc7 2.Df6+ De5 3.Dxe5,Se6+
Late multiple threats, 1...De7 2.Dxe7 thr. 3.Df6+,De5+,Dg7+,Sd2,Sa5,Kb4
There is only one threat after the key, so '1. ... droht 2. Sa5 Kxc5 3. Dxc6+ Kd4 4. Dc3#,Db6#' should be deleted (2021-08-23)
comment

Keywords: Model mate, Switchback, Antizielelement
Genre: n#
FEN: 8/6q1/P1pQ2p1/2Pp2Nb/K1Nk1Pp1/1p6/1P2B3/6b1
Input: Dieter Berlin, 2021-08-22
Last update: Dieter Berlin, 2021-08-22 more...

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