Die Schwalbe

114 problem(s) found in 3674 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20220810 AND NOT K='Blocklenkung' AND K='Entfesselung'] [download as LaTeX]

1 - P1008623
Hauke Reddmann
10424 Die Schwalbe 178 08/1999
P1008623
(7+7) C+
#2
v
1. Ld3? Tc5!

1. Th3! droht 2. Th4#
1. ... De7 2. Df5#
1. ... De6 2. Dg5#
1. ... Df6 2. De4#
1. ... Dg6 2. De5#

Die Mattchancen aus dem Plural des Drohspiels virtuell wiederholen sich step by step im Singular reell. Beides zusammen: ein feiner Circum-Fleck des Hamburger Thema-Spezialisten (FH). Direkte Entfesselung der wD erweist sich als zu grob, doch nach dezentem Vorgehen wird diese doch (indirekt) entfesselt, wonach die Drohmatts der Verführung einzeln doch verwirklicht werden. Gut konstruiert und originell (MOe). Good change of play: Fleck theme in the try with separation of mates, and reappearance of these after of the wQ unpinned in the solution (EP). Überraschender und schwieriger Schlüssel (EG).
play all play one stop play next play all
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comment
Keywords: Sacrifice key, Unpinning (vierfach), Fleck Theme
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/1b1p4/2rq4/3Q3p/5k2/2N2NR1/3K2R1/1B4n1
Input: Gerd Wilts, 2003-06-30
Last update: Dieter Berlin, 2024-04-02 more...
2 - P1018016
Brian Harley
Kenneth S. Howard
The Observer 1925
P1018016
(9+10) C+
#2
1. Dxf4! droht 2. Se3#
play all play one stop play next play all
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comment
Keywords: Brian Stephenson Collection (2849), Capture key, Unpinning (Schlüssel)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 2BNqr2/4r1n1/6p1/Rb1kn1Q1/2R2pp1/BP6/6N1/5K2
Reprints: Mate in two moves 1931
AJEC (Belgischer Fernschachbund) 05/1938
136 FIDE Album 1914-1944/I 1971
L The Problemist 25-3, p. 99, 05/2015
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-12-03 more...
3 - P1021500
Otto B. Wurzburg
American Chess Bulletin 1946
Lob
P1021500
(5+3) C+
#3
1. Le1! c5,c6 2. La5+ Kc8 3. La6# 2. ... Ke8 3. Lg6#
1. ... e5,e6 2. Lh4+ Kc8 3. La6# 2. ... Ke8 3. Lg6#
1. ... Kc8 2. La6+ Kd8 3. Sf6#
1. ... Ke8 2. Lg6+ Kd8 3. Sb6#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (6354), Zugzwang-Goal, discovered checkmate, Unpinning (sB)
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 3k4/2pNp3/8/3R4/7B/3B4/8/2K5
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-03-31 more...
4 - P1021946
E. B. Greenshields
41 Canadian Chess Problems , p. 43, 1890
P1021946
(10+2)
#3
1. De7! Kxg4 2. f4
1. ... Kxe4 2. Dd6
1. ... Ke5 2. Lf3
1. ... Sd8,Sf8 2. Ld2+
play all play one stop play next play all
Henrik Juel: duals like 1... Sc5 2.g3,Ld2+ (2024-03-03)
comment
Keywords: Brian Stephenson Collection (6801), Minimal (b), Flight giving sacrifice key, Unpinning (Schlüssel)
Genre: 3#
FEN: 8/8/N3n3/8/1Q2BkP1/1P6/5PP1/4BR1K
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-03 more...
5 - P1022548
Otto B. Wurzburg
Philadelphia Telephone 1892
P1022548
(11+8) C+
#2
1. Lc8? Ld7!
1. Lg4? Lc6!
1. Dg4? Lg6!

1. Lh3! droht 2. Te6#
1. ... Sb6 2. Te4#
1. ... Sc5 2. Td5#
1. ... Ld7 2. Sg6#
1. ... Lf7 2. Sc6#

1. ... Lc6 2. Dh5#
1. ... Txe7+ fxe7#
1. ... Lxd4+ cxd4#
play all play one stop play next play all
A.Buchanan: What a beautiful problem to solve over lunch! (2022-09-15)
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comment
Keywords: Brian Stephenson Collection (7404), Option key, Unpinning (vierfach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 4b2B/K3N2r/R3BP1p/1N2k3/n2R1p2/2PPb3/3p4/3Q4
Reprints: 818 Wiener Hausfrauen-Zeitung 36, p. 312, 02/09/1894
Wurzburg Artistry 1974
533 Beispiele zur Ideengeschichte des Schachproblems , p. 117, 1982
5 Versunkene Schätze , p. 15, 1998
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-04-20 more...
6 - P1023679
Sandor Hertmann
499 Allgemeine Zeitung Chemnitz 10/10/1926
1. Preis
Zweizügerturnier 1925-26
B) Gewöhnliche Zweizüger
I. Allgemeine Konkurrenz
P1023679
(8+12) C+
#2
1. S4c5! droht 2. Dd3#
1. ... Se7 2. Sg7#
1. ... Se3 2. Sd4#
1. ... Sc7 2. Lh7#
play all play one stop play next play all
Motto: 'Doppeltes Schor-Thema'

Problemnummer war verdruckt (493)
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comment
Keywords: Brian Stephenson Collection (8543), Unpinning (schwarz), selfpinning (w), Schor
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: q3r1B1/r7/1p1BNp2/1Q1n1k2/1p2Np2/2p2P2/p3K1R1/6b1
Reprints: 159 FIDE Album 1914-1944/I , p. 41, 1971
Von Ajec bis Zappas , p. 373, 2012
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-23 more...
7 - P1023698
Kenneth S. Howard
Empire Review 01/1926
P1023698
(9+8) C+
#2
1. Dg6? Le4!

1. Df6! droht 2. e6#
1. ... Sd3 2. e3#
1. ... Sc6 2. Df2#
1. ... Le6 2. Df4#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (8562), Pawn mate, Blocknutzung, Line closing, Unpinning
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 4R3/B1R5/1r1Q3K/b2bP3/1npk3p/1nN5/4P3/3N4
Reprints: 84 The American Two-move Chess Problem , p. 53, 1965
Systematic Terminology 1984
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-01-28 more...
8 - P1023962
Cyril S. Kipping
Falkirk Herald 25/01/1928
P1023962
(9+11) C+
#2
1. c7! droht 2. c8=D#,c8=L#
1. ... Tc5,Tb4 2. Sd6#
1. ... Dxc2+ 2. Dxc2#
1. ... De4 2. Dg4#
1. ... Dd4+ 2. Sxd4#
1. ... Dc4 2. Se3#
1. ... Txd5+ 2. Dxd5#
1. ... Tb3 2. Se3#
1. ... Se7,Sf6 2. Sh6#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (8828), Valve, Unpinning, Block, Deckungsverlust
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 6n1/5N2/1pP3p1/pr1P1kB1/q4P2/b1p4P/1pN3Q1/1n1K4
Reprints: 85 Valves and Bi-Valves , p. 97, 1930
112 Dom Rodzinny (Torun) 24/04/1932
23 Glos Poranny 08/05/1932
Input: Brian Stephenson, 2004-08-12
Last update: Rainer Staudte, 2023-06-02 more...
9 - P1023965
Alberto Mari
Grantham Journal 1928
2. Platz
P1023965
(12+5) C+
#2
1. Sc2! (Zugzwang)
1. ... Dxh3,Dxh5,Dg4,Dg3 2. De3#
1. ... Dxe4 2. Dg3#
1. ... Dxf2 2. Dg4#
1. ... Df4 2. Dg2#
1. ... Dxg5+ 2. Sxg5#
1. ... Kxe4 2. Sd6#
1. ... Kxf2 2. Tf1#
1. ... hxg5 2. Sxg5#
1. ... Se7,Sf6 2. De3#
play all play one stop play next play all
Nachdruck in 'Die Muskete (Wien)' hat fälschlich zusätzlichen sSh2 (dann aber unlösbar)
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comment
Keywords: Brian Stephenson Collection (8831), Zugzwang-Goal, Black correction, Unpinning, indirekte Entfesselung, Block
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 3K1Rn1/5N2/4p2p/4P1QP/2B1P2q/4Nk1P/5P2/6R1
Reprints: 7 Die Muskete (Wien) 21/08/1930
151 The Two-move Chess Problem: Trad. & Dev. , p. 85, 1966
Input: Brian Stephenson, 2004-08-12
Last update: Rainer Staudte, 2023-06-02 more...
10 - P1023979
Laszlo Schor
Magyar Sakkelet 1928
1. Preis
P1023979
(7+8) C+
#2
1. Kg5! droht 2. Sg3#
1. ... Dd5 2. De1#
1. ... Da5 2. Dd3#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (8845), Deckungsverlust, Change of Pins, Unpinning
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/6p1/3p2K1/5N2/8/1n2Qp2/p2q1B1R/Rb3kN1
Reprints: 34 FIDE Album 1914-1944/I , p. 20, 1971
14 Schach ohne Partner [Grasemann] , p. 25, 1977
Systematic Terminology 1984
274 Encyclopedia of Chess Problems , p. 81, 2012
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-02-20 more...
11 - P1025429
Kurt Bacmeister
1314 Landeszeitung für die Lüneburger Heide 20/02/1993
P1025429
(9+11) C+
#2
1. Sb4! droht 2. Sc6#
1. ... Sef4 2. Lxc5#
1. ... Sgf4 2. Le5#
1. ... Lxh4 2. De3#
1. ... Txh4 2. Da1#
1. ... Dg4 2. Dxf2#

1. ... cxb4 2. Td5#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (10307), Sacrifice key, Unpinning, pin-mate
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 3r4/2pN4/N2Bn1n1/1Rp5/2Pkb2R/1K1p4/3P1bq1/4Q2r
Reprints: 7 Problemschach-Jahrbuch 1993 D , p. 10, 1993
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-05-20 more...
12 - P1025438
Stephen Rothwell
1308 Lüneburger Landeszeitung 09/01/1993
P1025438
(6+8) C+
#2
1. Td4? c5!

1. Dg1! droht 2. Dg5#
1. ... Txg1 2. Lb8#
1. ... exd3 2. Dd4#
1. ... Kxf4 2. Dg3#

1. ... e3 2. Dxe3#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (10316), Sacrifice key, Sacrifice of white pieces (D, T, S), Unpinning, Line opening
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: b7/B3p1Kp/2p3pN/4k3/4pN2/3RQ3/8/1r6
Reprints: 2 Problemschach-Jahrbuch 1993 D , p. 10, 1993
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-05-12 more...
13 - P1027404
Hermann Rübesamen
240 Süddeutsche Schachblätter 9 01/05/1908
P1027404
(10+6)
#2*
* 1. ... Kxd6 2. Le7# 1. ... De5+ 2. Dxe5#

1. De7! Da2+ 2. Td2#
1. ... Dc4+ 2. Td3#
1. ... Dd1+,Dd2+,Dd3+ 2. Txd1#
1. ... De5+ 2. Le4#
1. ... Dh5+ 2. Lf3#
1. ... Dg2+,Df3+,De4+ 2. Lxg2#
play all play one stop play next play all
Henrik Juel: double threat and duals after 1... Dxc6,Dxd6 (2022-10-09)
comment
Keywords: Brian Stephenson Collection (12288), Unpinning, Provoked check (zehnfach), Cross check (vierfach), Battery mates, Changed mates
Genre: 2#
FEN: 2RB2b1/3P4/2BRp2r/1Pkq2Q1/8/N1P5/4K2p/8
Reprints: 42 Versunkene Schätze , p. 27, 1998
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-09 more...
14 - P1028332
Friedrich Chlubna
Schweizerische Arbeiter-Schachzeitung 1966
1. Preis
P1028332
(7+8)
#2
1. Ld5? droht 2. De4# 1. ... Dg6 2. Le6# 1. ... Lc3!
1. Sd5? droht 2. De3# 1. ... Dh6 2. Sf6# 1. ... Da3 2. Sb4# 1. ... Dxe5!

1. Sbd7! droht 2. Dd3#
1. ... Dg6 2. Sf6#
1. ... Da6 2. Sb6#
1. ... Da3 2. Sc5#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2023-02-28)
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comment
Keywords: Brian Stephenson Collection (13219), Unpinning (sD), discovered checkmate, Line closing (wS - sD)
Genre: 2#
FEN: 3R4/1pp2B1p/1N1q4/n3N3/3k4/8/4Q2n/b1RK4
Reprints: Problem-Palette II , p. 21,
1705 Beispiele zur Ideengeschichte des Schachproblems , p. 345, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-02-27 more...
15 - P1030723
William A. Shinkman
V. Hartford Times 28/09/1882
P1030723
(4+8) C+
#3
1. De2! f5 2. Txh4+ gxh4 3. Kf4# 2. ... Kxh4 3. Dh2#
1. ... fxe5 2. Txg5+ Lxg5 3. Kg3# 2. ... Kxg5 3. Dxe5#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (15624), half-battery, white, Unpinning (w), discovered checkmate, Blocknutzung, Epaulettenmatt, Echo
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 6n1/7p/5ppr/4P1pk/6Rb/5K2/7Q/8
Reprints: The Golden Argosy 1929
454 Beispiele zur Ideengeschichte des Schachproblems , p. 103, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-04-25 more...
16 - P1034845
Kenneth S. Howard
L'Alfiere di Re 11-12/1925
P1034845
(8+6) C+
#2
1. Sc3! droht 2. Se2#
1. ... Lc6 2. Dg1#
1. ... Le6 2. De4#
1. ... Sxc3 2. dxc3#
1. ... Sf4,Sg3 2. Df6#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (19770), pin-mate, Line closing, Unpinning
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 2R1R3/B7/rr4QK/1B1b3n/n2k4/8/3P4/3N4
Reprints: 82 The American Two-move Chess Problem , p. 53, 1965
30 FIDE Album 1914-1944/I , p. 20, 1971
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-01-28 more...
17 - P1038759
Arnoldo Ellerman
1127 Good Companions 12/1916
1. Preis
P1038759
(8+9) C+
#2
1. e7! droht 2. Se6#
1. ... Sg5 2. Dxf6#
1. ... Se5 2. Df2#
1. ... Le5 2. Dd3#
1. ... d5 2. Df4#
1. ... Ld5 2. Dxd5#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (23711), Unpinning (wD, fünffach), pin-mate (zweifach)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: b7/B1N5/q2pPb2/1pr2Q1K/3k4/pP3n2/8/1B1N4
Reprints: 96D The Good Companion Two-Mover 1922
790 Beispiele zur Ideengeschichte des Schachproblems , p. 166, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-03-19 more...
18 - P1039493
Henry Wald Bettmann
V Good Companions 04/1921
P1039493
(10+8) C+
#2*
* 1. ... c6 2. Txd6# 1. ... h4 2. Kg4# 1. ... Dxg5 2. Ke2#

1. De3! droht 2. c4#
1. ... Dxf6+ 2. Sxf6#
1. ... Df5+ 2. Txf5#
1. ... Df4+ 2. Kxf4#
1. ... Dxe3+ 2. Kxe3#
1. ... Dxg3+ 2. Kxg3#
1. ... De4+ 2. Dxe4#
1. ... Dxd4 2. Dxd4#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (24449), Unpinning (Schlüssel), Pawn mate (Drohung), Provoked check, discovered checkmate
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: n3N3/2p2p2/3p1R2/N2kq1Qp/3B4/2P2KP1/5P1p/7B
Reprints: The Good Companion Two-Mover 1922
Simple Two-move Themes 1924
Mate in two moves 1931
73 The American Two-move Chess Problem , p. 51, 1965
119 Spectacular Chess Problems , p. 50, 1965
132 U.S. Chess Problem Anthology 2004
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-02-13 more...
19 - P1047395
Petrus Albertus Koetsheid
Joseph Jean Louis Marie Opdenoordt
3666 Skakbladet 07/1933
3. Preis
P1047395
(8+13)
#3
1. Th3! droht 2. Kxd1
1. ... Lc3+ 2. Ke2
1. ... Le3+ 2. Kc2
1. ... Lxb2+ 2. Ke1
1. ... Lf2+ 2. Kc1
play all play one stop play next play all
Henrik Juel: trial after 1... Sf2,Sxb2 (2024-03-19)
comment
Keywords: Brian Stephenson Collection (32418), Unpinning (Schlüssel), Provoked check, double-check mate
Genre: 3#
FEN: 8/1n6/p1ppN3/Bbrrp3/ppkb3R/RN6/BP1K4/3n4
Reprints: 739 FIDE Album 1914-1944/II , p. 138, 1972
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-19 more...
20 - P1047988
Arnoldo Ellerman
American Chess Bulletin 1921
3. Preis
P1047988
(8+9) C+
#2
1. Dd7! droht 2. Da4#
1. ... Txd5 2. Te3#
1. ... Te5 2. T5d4#
1. ... Tg5 2. Sxf6#
1. ... Tf4 2. Sc3#
1. ... Tf3 2. T3d4#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (33013), Dalton-Thema, Unpinning (wD - sT), Liniensperrung, Blocknutzung (vierfach)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 2K1Nb2/7Q/3P1p2/3R1r1p/4k2q/3R3b/3PNpp1/8
Reprints: 868 Beispiele zur Ideengeschichte des Schachproblems , p. 182, 1982
Solving in Style [Nunn] 1985
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-04-01 more...
21 - P1048452
Antonio G. Corrias
? 1895
2. Platz
P1048452
(13+10) C+
#2
1. Tf3! Lxh7,Lf7 2. Lf7#
1. ... Le6 2. Tc5#
1. ... Sc1,Sc3 2. Sb4#
1. ... Sf2,Sh2 2. Dxg8#
1. ... Sxf6+ 2. Sxf6#
1. ... Sxe5 2. Sc7#
1. ... e1=D,L,S 2. Dxa2#
1. ... Tee3 2. Txe3#
1. ... Tef4 2. Txf4#
1. ... Txe5+ 2. Tf5#
1. ... d3 2. Txd3#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (33479), Zugzwang-Goal, Unpinning (Schlüssel), Blocknutzung, Theme B2, Line opening, discovered checkmate, pin-mate
Genre: 2#
Computer test: SCHRECKE popeye 4.89
FEN: 1B2B1b1/7N/N1R2P1p/1P1kP2K/p2pr1np/P2R3P/n3p1Q1/8
Reprints: White to Play 1913
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-07 more...
22 - P1055167
Konrad Kummer
? 1975
P1055167
(10+7) C+
#2
1. Sf6! droht 2. Da8#
1. ... Dd3+,d3+ 2. cxd3#
1. ... Dxc2+ 2. Txc2#
1. ... Dxg2+ 2. Lxg2#
1. ... De4+ 2. Sxe4#
1. ... Dg4+ 2. Sxg4#
1. ... Dh5+ 2. S6xh5#
1. ... Dxf6 2. Txf6#
1. ... De8+ 2. Sxe8#
1. ... Dg8 2. Sxg8#
play all play one stop play next play all
Als Quelle wird bei Henneberger (s.Ndr.) "Die Linth 1975" angegeben:
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comment
Keywords: Brian Stephenson Collection (40218), Unpinning (sD), Provoked check (sD, neunmal), Batterienutzung, mehrfache
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2Q5/2p4p/1pk3qR/1p6/1B1pNN2/8/2P1K1P1/2R2B2
Reprints: 32 Kunstschach in der Schweiz , p. 25, 1980
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-08-31 more...
23 - P1055224
Emil Mächler
Neue Zürcher Zeitung 1975
P1055224
(8+8) C+
#2
1. Df6! droht 2. Sf4#
1. ... Sde6 2. Df3#
1. ... Sge6 2. Dh8#
1. ... Ld6 2. Dg5#
1. ... Lxf6 2. Sxf6#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (40275), pin-mate (vierfach), Unpinning (wD, dreifach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 4B1N1/4b1n1/KQ4r1/1p5k/3n3P/7P/4p1N1/1bB5
Reprints: 35 Kunstschach in der Schweiz , p. 27, 1980
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-10-18 more...
24 - P1058070
Barry Peter Barnes
Europe Echecs 1960
1. Preis
P1058070
(12+7) C+
#2
1. Sc3? droht 2. Dg7# 1. ... Txb6 2. Sb5# 1. ... Txf2 2. Se2# 1. ... dxc5!

1. Td4! droht 2. Dg7# 1. ... Txb6 2. Tb4# 1. ... Txf2 2. Td2#
play all play one stop play next play all
Breuer: Entfesselung in Verführung und Spiel mit gleicher Thematik (s-w Grimshaw), Mattwechsel.
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comment
Keywords: Brian Stephenson Collection (43129), Changed mates, Grimshaw (s-w), Unpinning
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 1K6/1Q5b/1P1pp3/2PPk3/R3N1RN/p7/1r3P1b/B4B2
Reprints: 163 FIDE Album 1959-1961 , p. 44, 1966
1542 Beispiele zur Ideengeschichte des Schachproblems , p. 310, 1982
Barnes about Chess Problems 2001
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-03-07 more...
25 - P1058831
Frantisek Matousek
? 1940
1. Preis
Kvicala-Memorial-Turnier
P1058831
(7+12)
#3
1. Dg3! droht 2. Sxh6+
1. ... Txb6 2. De3
1. ... Lxb6 2. Txe6
1. ... Sxb6 2. Se7+
play all play one stop play next play all
Henrik Juel: dual 1... Sg3 2.Lxe6,Tf6+ (2023-03-29)
comment
Keywords: Brian Stephenson Collection (43894), Unpinning (Schlüssel)
Genre: 3#
FEN: 2n3N1/2b2B2/1Np1p1Rp/2p2k2/1r3n2/1pPp4/2bK1Q2/8
Reprints: 347 FIDE Album 1914-1944/II , p. 73, 1972
1161 Beispiele zur Ideengeschichte des Schachproblems , p. 235, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-05-04 more...
26 - P1065830
Geoffrey Arthur Mott-Smith
Chess Review 04/1935
P1065830
(5+4) C+
#2
1. Te6! droht 2. Ta6#
1. ... Lf5 2. Lf8#
1. ... Lc2 2. Lc1#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (50923), Line closing, Unpinning (Schlüssel)
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 2K5/8/7B/1Q6/2p5/k2bR3/5r2/1B6
Reprints: 107 The American Two-move Chess Problem , p. 59, 1965
137 Spectacular Chess Problems , p. 56, 1965
2345 Chess Problems 1997
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-01-16 more...
27 - P1065992
Kenneth S. Howard
? 1928
Lob
P1065992
(7+9) C+
#2
1. Tc5! droht 2. T5xc3#
1. ... Dxc5+ 2. Dxc5#
1. ... Dd5+ 2. Txd5#
1. ... De5+ 2. Txe5#
1. ... Dc4 2. Txc4#
1. ... Sf4+ 2. Lxf4#
1. ... Sf2 2. Lf4#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (51086), Sacrifice key, Unpinning (Schlüssel), Provoked check, discovered checkmate
Genre: 2#
Computer test: Juel: C+ Popeye 4.61, Schrecke Notation
FEN: 1B6/Q5p1/5pNp/5R1K/3qp3/2p1kp1n/2R5/2N5
Reprints: ? 1928
Enjoyment of Chess Problems 1943
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-12-10 more...
28 - P1086067
Zivko Janevski
587 Probleemblad 05-06/1981
P1086067
(8+10) C+
s#2
1. Sxb7 Lxa7 2. Lc5+ Lxc4#
1. Sxb7 La5! 2. Txa6 Tg1,Th1#
1. Sxb7 Lxc7 2. La5+ Lxc4#
1. Sxb7 Lc5! 2. Txc5 Tg1,Th1#
1. Sxb7 Ld4 2. Sxd4 Tg1,Th1#
1. Sxb7 Le3 2. Sxe3 Tg1,Th1#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/RpR5/bb1N4/5N2/kBQ5/5ppp/1P3prr/5K2
Input: Frank Müller, 2009-06-12
Last update: Dieter Berlin, 2024-03-05 more...
29 - P1086069
Zivko Janevski
Mat (Belgrade) 11-12/1981
P1086069
(6+8) C+
s#2
1. Le5 Sc3 2. Sc2+ Txc2#
1. Le5 Sd4 2. Db1+ Txb1#
1. Le5 Sd6 2. Lxd6 Td2# (bel)
1. Le5 Sc7 2. Lxc7 Td2# (bel)
play all play one stop play next play all
more ...
comment
Keywords: Unpinning, Grab
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 7B/p7/P7/1n3Q2/1p6/bP6/rr2p3/k1K1N3
Input: Frank Müller, 2009-06-12
Last update: Dieter Berlin, 2023-12-02 more...
30 - P1086070
Zivko Janevski
Shakhmatna Misl 1981
P1086070
(9+8) C+
s#2
1. Lg7? fxe5 2. Txc3+ Sxc3# 1. ... f5 2. Dxe3+ Sxe3# 1. ... b4!

1. Tb4! fxe5 2. Lxe3+ Sxe3#
1. Tb4! f5 2. Dxc3+ Sxc3#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 3N4/8/1pN2pRB/1pknQ3/8/1Rp1p3/2PpB3/3K4
Input: Frank Müller, 2009-06-12
Last update: Dieter Berlin, 2024-02-21 more...
31 - P1118565
E. B. Greenshields
St. John Globe 1890
2. Preis
P1118565
(3+3) C+
#3
1. Dh2! droht 2. Db2+
1. ... Ka6,Kb6,Ka7 2. Dxc7
1. ... Kc5 2. Dd2
1. ... c5,c6 2. Db8+
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61, except for mate duals (2024-03-02)
more ...
comment
Keywords: Miniature Collection (0039826), Miniature, Unpinning (Schlüssel)
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/2p5/1k4nQ/8/K3B3/8/8/8
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2024-03-02 more...
32 - P1121156
Gerhard Paul Latzel
3919 Deutsche Schachzeitung , p. 352, 10/1978
Spezialpreis
für Miniaturen
P1121156
(5+2) C+
#3
1. Sa2! droht 2. Sc3#
1. ... Df8+ 2. Tb8+ Ka5 3. Sb4#
1. ... Df3+ 2. Tb7+ Ka5 3. Sc3#
1. ... Db4 2. Sxb4+ Kb3 3. Le6#
play all play one stop play next play all
G6TD
more ...
comment
Keywords: Miniature Collection (0041642), Aristocrat, Minimal (b), Miniature, Unpinning, Cross check, Batterienutzung, mehrfache, Battery mates
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: K7/3B4/8/1R6/kN6/q7/8/Q7
Reprints: II Die Schwalbe 65, p. 122, 10/1980
297 Perlen der Schachkomposition 1985
111 Schachminiaturen mit schwarzer Dame , p. 86, 1988
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-11-23 more...
33 - P1141552
D. Schoop
Tages-Anzeiger 1982
P1141552
(5+2) C+
#3
1. Tc3! Lxc3+ 2. Kxc3 Ka3 3. Ta5#
1. ... Lxc5+ 2. Kxc5 Ka5 3. Ta3#
1. ... La3 2. Ld1+ Kb4 3. T3c4#
1. ... La5 2. Lb5+ Kb4 3. Tb3#
play all play one stop play next play all
E735
more ...
comment
Keywords: Miniature Collection (0337838), Läuferstern, Aristocrat, Minimal (b), Miniature, Sacrifice key, Unpinning (Schlüssel), Blocknutzung, Echomatt, Provoked check
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/8/8/2R5/kbRK4/8/3NB3/8
Reprints: 193 Schweizer Schachkompositionen 1976-1986 , p. 71, 1989
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-10-30 more...
34 - P1161264
Arturs Keirans
25 Shakhmaty v SSSR 1936
1. Lob
P1161264
(5+2) C+
#2
1. Dc5! droht 2. Df8#
1. ... Txf5+ 2. Dxf5#
1. ... Td4 2. Sfe7#
1. ... Te4 2. Sd6#
play all play one stop play next play all
C8f
more ...
comment
Keywords: Miniature Collection (0025415), Aristocrat, Minimal, Miniature, Unpinning
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2k5/R7/2N2K2/5N2/5r2/8/5Q2/8
Reprints: 66 Schachminiaturen Zweizüger , p. 25, 1965
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-01-13 more...
35 - P1170011
Eugene B. Cook
35 Daily Globe 19/02/1870
P1170011
(4+3) C+
#3
1. Td2! droht 2. Tf2#
1. ... Sd3 2. Sg2 Se1 3. Tf2#
1. ... Sf3 2. Tc2 Sd2 3. Tc1# 2. ... Se1 3. Tf2#
1. ... Sc2 2. Txc2 Ke1 3. Tc1#
1. ... Sg2 2. Txg2 Ke1 3. Tg1#
play all play one stop play next play all
HX4
more ...
comment
Keywords: Miniature Collection (0321562), Miniature, Unpinning (Schlüssel), Echomatt, Blocknutzung
Genre: 3#
Computer test: SCHRECKE: popeye 4.89, Lösungsnotation
FEN: 8/8/8/8/4pN2/4B3/8/3Rnk1K
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2023-12-17 more...
36 - P1216354
Camillo Gamnitzer
5825 Thema Danicum 01/1994
P1216354
(14+11) C+
s#5
1. Lc1! droht 2. Sd2 ... 3. Sxh3+ Sxh3#
1. Lc1 Lc5 2. Sd2? Txe5+ 3. bxc5 Txe6/Txg5!
1. Lc1 Lc5 2. b5 droht 3. Sd2 2. ... La7 3. bxa6 Tb2 4. Sxb2 droht 5. Lxe3+ 4. ... d2 5. Sd3+ Txd3#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning, Switchback
Genre: s#
Computer test: A. Baumann: Gustav 4.2a
FEN: 1n6/br1P2R1/b2PQ3/4P1N1/1PN2kP1/P2prp1p/3BpK1P/4R1n1
Input: Frank Müller, 2011-10-31
Last update: Dieter Berlin, 2023-12-07 more...
37 - P1217664
Walter Nanz
5d Fata Morgana , p. 45, 1922
P1217664
(6+7) C+
s#2
1. Df2! droht 2. De2 Ta2# 2. ... Tb1#
1. ... Se1 2. Dxe1
1. ... Sg1 2. Dxg1
1. ... Sd2 2. Dxd2
1. ... Sxh2 2. Dxh2
1. ... Sd4 2. Dxd4
1. ... Sh4 2. Sxh4
1. ... Sxe5 2. Sxe5
1. ... Sg5 2. Df5
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (Schlüssel), Knight's wheel (s)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/8/6Np/4N2k/8/1p3n1p/1rp1Q2P/K1B5
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2023-11-25 more...
38 - P1217718
Julio Peris Pardo
3521 The Brisbane Courier 07/01/1933
Lob
P1217718
(11+10) C+
#2
1. Tb5! droht 2. Sg2#
1. ... Td5 2. De3#
1. ... Sed5 2. Df5#
1. ... Sfd5 2. De4#
1. ... d5 2. De5#
play all play one stop play next play all
more ...
comment
Keywords: theme A, Unpinning (s, vierfach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/2p1nbp1/2BpQn2/6Np/5k1N/1RBr3P/K2P3P/b5R1
Reprints: 1050 Beispiele zur Ideengeschichte des Schachproblems , p. 215, 1982
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2023-02-05 more...
39 - P1218384
Viktor Führer
Denken und Raten 1932
1. Preis
P1218384
(11+12) C+
#2
1. Sd5! droht 2. Sc3#
1. ... Lb2 2. Scb4#
1. ... Ld2 2. Sce3#
1. ... Kxd5 2. Da8#
1. ... exd5 2. De8#
1. ... Tf3 2. dxc5#
1. ... Dh3 2. Sxf6#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (zweifach), Dual avoidance (zweifach), Sacrifice key, Drag-in sacrifice, Knight sacrifice, Blocknutzung, Unpinning, Battery mates, pin-mate
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/5p2/3ppp1q/2p2p2/QN1Pkr2/1P6/K1N1r1PB/1BbRR1n1
Reprints: 383 Arbeiter-Zeitung (Wien) 19/12/1932
70 Problem-Palette , p. 27, 1970
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2022-08-14 more...
40 - P1219313
Imre Toth
IV Die Schwalbe 37, p. 2, 01/1931
P1219313
(10+9) C+
#2
1. Ta1! droht 2. Ta5#
1. ... Sd4 2. Sc7#
1. ... Se4 2. Sb6#
1. ... Sxd7 2. Dxd7#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (Schlüssel)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 5B2/3B2Q1/K3Nn1q/3k3r/2N2p2/1Pp2P2/3pn3/3RRb2
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2023-08-14 more...
41 - P1223900
Israel A. Schiffmann
Upsala Schacksällskap 1929
1. Preis
P1223900
(8+12) C+
#2
1. Tc1! droht 2. Sd1#
1. ... Te5 2. Lc5#
1. ... Le5 2. Ld6#
1. ... Se5 2. Le7#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (dreifach, sT), pin-mate (Drohung)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 1R6/5n1q/2p2Q2/5r1p/BBpr1bp1/2N1p3/pk2N1K1/4R3
Reprints: 985 Beispiele zur Ideengeschichte des Schachproblems , p. 203, 1982
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2023-03-27 more...
42 - P1232694
Hans Richard Lau
7225 Die Schwalbe 09-10/1947
P1232694
(9+9)
#2
1. Sxd7+ Kc6 2. Lb5#
1. ... Ke6 2. Sf8#
1. ... Dxa3 2. Tg6#
1. ... Lc5 2. Tb6#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2023-02-10)
comment
Keywords: Unpinning
Genre: 2#
FEN: 2K1b1N1/b2pPn2/P2k4/2Np2R1/2Br4/B6q/1R6/2r5
Input: Felber, Volker, 2012-02-19
Last update: Felber, Volker, 2012-02-19 more...
43 - P1233785
Fritz Hoffmann
12971 Schach 08/1993
Lob
P1233785
(7+10) C+
s#2
1. Le6? droht 2. Dxd4+ Lxd4#
1. Le6? Sxe3 2. Sd3+ Txd3# 1. ... Sxf4!

1. Kf6! droht 2. De7+ Td6#
1. Kf6! Sxe3 2. Se4+ Txe4#
1. Kf6! Kd6 2. Dxd4+ Lxd4#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning, Pinning, Changed continuation, Rukhlis theme
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: N7/5B1p/2p3p1/1pk1KpR1/1p1r1P2/4Q3/5Nn1/b7
Input: Frank Müller, 2012-03-04
Last update: Dieter Berlin, 2024-02-25 more...
44 - P1235919
Michael Oestreicher
3537 Freie Presse (Chemnitz) 19/08/1994
P1235919
(10+5) C+
#4
1. Sh3+? Kh1 2. Sgf2+ Kh2 3. Lf4?
1. Se4+? f2+ 2. Lxf2+ Kh1 3. Sg3?
1. Te5? Dxg5!

1. Tc1? droht 2. Sh3+ Kh1 3. Kf2#
1. ... Dc7!

1. Tb1! Db4 2. Se4+ f2+ 3. Lxf2+ Kh1 4. Sg3#
1. ... Dc5 2. Sh3+ Kh1 3. Sgf2+ Kh2 4. Lf4#
play all play one stop play next play all
more ...
comment
Keywords: Pinning, Unpinning
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/4q3/2R5/1R3PPP/6N1/3pBp2/3P1Np1/4K1k1
Reprints: 445 Problemschach-Jahrbuch 1994 D, p. 198, 1994
Input: Felber, Volker, 2012-04-05
Last update: Dieter Berlin, 2023-05-31 more...
45 - P1236519
Walter Supp
3656 Freie Presse (Chemnitz) 24/11/1995
P1236519
(10+13) C+
#2
1. Txe4! droht 2. Ld4#
1. ... Dxe4+ 2. Sxe4#
1. ... Sxa3 2. Ld2#
1. ... Sc6 2. Txc4#
1. ... Sf3 2. Se2#
1. ... axb3 2. Dxa5#
1. ... cxb3 2. Db2#
play all play one stop play next play all
more ...
comment
Keywords: Provoked check, Unpinning, Capture key, selfpinning, Sacrifice key, Deckungsverlust, Line closing, Line opening, Sacrifice of white pieces (DTS)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: Kb6/p1r5/B2P4/p3n2b/p1pRp3/QNk1B1N1/R1P2pq1/1n6
Reprints: 821 Problemschach-Jahrbuch 1995 D , p. 340, 1996
Input: Felber, Volker, 2012-04-10
Last update: Dieter Berlin, 2023-07-10 more...
46 - P1244327
Ernst Baumgarten
1468 Freie Presse (Chemnitz) 07/09/1973
P1244327
(9+9)
#2
1. Sxe5? Txe5!
1. Sf4? Ke3!
1. Sf2? Ld6!

1. Sb4! droht 2. e3#
1. ... Td6 2. Lxe5#
1. ... Ld6 2. Sc6#
1. ... Txb4 2. Txd5#
1. ... Sf5 2. Dd2#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2023-04-03)
comment
Keywords: Unpinning, Grimshaw
Genre: 2#
FEN: 1b1R3B/8/4r2n/1r1nq1QK/3kP1p1/p2N2N1/4P3/2R5
Input: Felber, Volker, 2012-07-10
Last update: Felber, Volker, 2014-06-29 more...
47 - P1251332
Vyacheslav Kopaev
106 Shakhmatnaya Poeziya 12/1991
1. Preis
P1251332
(9+14) C+
s#2
1. Df4? Tc5!

1. De4! droht 2. Dxb4+ Lxb4#
1. ... Lf1+,L~ 2. De5+ Txe5#
1. ... La4+ 2. S3b5+ Lxb5#
1. ... La6+ S7b5+ Lxb5#
1. ... Tc5 2. Dd3+ Lxd3#
play all play one stop play next play all
Auszeichnung in Schachmatnaja poesija.
Im Original steht in SPo die wD auf e6 und es gibt einen zusätzlichen wBb3.
Nightrider: Why is the original position not given here in the diagram?
I don't think that the author would be pleased to see his problem in a version with unprovided checks (1...Qxa7+, 1...Rxa3+, 1...b6+, 1...Sc4+), which he avoided carefully: He placed the wQ on e6 so that a battery check by the bBb5 could be answered by 2.Qe5+ and the black correction 1...Ba4+ could be answered successfully by 2.S3b5+ - thanks to the wP that he placed on b3 (so that wQe6 could not capture bRa2). It is obvious that the author took pains to avoid unprovided checks. (2022-10-13)
SCHRECKE: C+, popeye 4.87 (2022-10-13)
comment
Keywords: dentist theme, Echo, Unpinning, Black correction, Provoked check, Switchback
Genre: s#
FEN: q4b2/Npp3p1/2P3Bp/Kb3Q1r/1p5p/N1k1P3/rnPp4/B7
Reprints: 13610 Schach 06/1996
Input: Frank Müller, 2012-10-14
Last update: Marcin Banaszek, 2022-10-19 more...
48 - P1255701
Mario Parrinello
13387 Die Schwalbe 225 06/2007
P1255701
(8+5)
hs#3
2.1...
KöKo
1) 1. Td8xf8 Sc7-e8 2. Lc6-b7 Le4-c6 3. Tf8xe8+ Lc6xe8#
2) 1. Lc6xe4 Sc7-d5 2. Td8-b8 Tf8-d8 3. Le4xd5+ Td8xd5#
play all play one stop play next play all
Anton Baumann: C+ Alybadix (2022-11-17)
comment
Keywords: Köko, Capture key, Unpinning, selfpinning, Pelle move, bi-coloured Bristol, Exchange of roles (T-L, t-l)
Genre: Fairies
FEN: k2R1r2/2n1P3/P1B5/1N5K/3Pb2P/8/8/6r1
Input: Gerd Wilts, 2012-12-13
Last update: Gunter Jordan, 2022-11-17 more...
49 - P1260078
György Bakcsi
12804 Schach 11/1992
P1260078
(11+3) C+
s#2
1. Se4? Kf5!
1. Sf5? Kf6!

1. Sh1! Kf4 2. Ld4+ Lxf1#
1. Sh1 Kf6 2. Lg3+ Lxf1#
play all play one stop play next play all
Verführungen
more ...
comment
Keywords: Unpinning
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 2N3Q1/8/6P1/Rb2k2p/7P/6NK/5B1P/1B3R2
Input: Frank Müller, 2013-01-19
Last update: Dieter Berlin, 2023-12-11 more...
50 - P1262971
Ralf Krätschmer
Wochenpost 8 14/02/1994
P1262971
(5+8) C+
#7
1. Ke6! Ta6 2. Kf6 Tb6 3. Kg6 Ta6 4. Kh6 Tb6 5. Lg6 Ta6 6. Tf8 Se5,~ 7. T8xf2#
play all play one stop play next play all
Vertiefen Sie sich bitte in die Stellung: Nur ein Stein kommt nach Vorbereitung für den Mattstreich in Frage. Bei Schwarz hingegen kann nur ein Stein ziehen. Dies nutzt der "Fluchtschutz" (Autor) mit Entfesselungen im Gefolge.
more ...
comment
Keywords: Unpinning
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 2R5/8/1rnK4/8/3pB3/1p1n4/1pk2p2/1N3R2
Reprints: 671 Problemschach-Jahrbuch 1994 D , p. 318, 1995
Input: Felber, Volker, 2013-02-21
Last update: Dieter Berlin, 2023-07-24 more...
51 - P1266791
Matthias Schneider
100 idee & form , p. 603, 10/1989
P1266791
(10+11) C+
#2
1. Txe7! droht 2. Texe5#
1. ... Sed7 2. Tff4#
1. ... Se6 2. Txe5#
1. ... Lc7 2. Sd2#
1. ... Lc3 2. Sd6#
1. ... Dxf5+ 2. Dxf5#
1. ... Txc4+ 2. Dxc4#
1. ... Le2 2. Dxe2#
play all play one stop play next play all
Autorenangabe: M. Schneider, Hombrechtikon
more ...
comment
Keywords: Provoked check, Unpinning, Capture key, Line closing, pin-mate
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: B1K2n2/2R1p3/5PrN/b2pnR2/2N1k3/6pq/6P1/2rb1QB1
Input: Felber, Volker, 2013-04-10
Last update: Dieter Berlin, 2023-11-05 more...
52 - P1277190
Peter Heyl
12031 Die Schwalbe , p. 258, 10/2003
P1277190
(3+16)
h#5
1. Sd1 Se3 2. Lb7 Sd5 3. 0-0-0 Sxc7 4. d5 Sa8 5. Tc7 Sxb6#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-07-22)
comment
Keywords: Unpinning, Line opening, Remote selfblock, Liniensperrung, Check Protection, Castling, Selfblock, Model mate
Genre: h#
FEN: r1b1kb2/B1p3p1/1prp4/1np5/8/6pp/pn6/q4N1K
Input: Felber, Volker, 2013-09-03
Last update: Gunter Jordan, 2023-07-22 more...
53 - P1279833
Fritz Karge

3. Preis
1. Nationales Problemturnier der Hoesch AG, Dortmund 1941
P1279833
(8+6) C+
#2
1. Sf3? Lf4!
1. Sg2! droht 2. Sxe3#
1. ... Lc1 2. De1#
1. ... Lf4 2. Df3#
1. ... Lf2 2. Sd2#
1. ... Ld2,Lh6 2. e3#
play all play one stop play next play all
more ...
comment
Keywords: Black correction, Unpinning, pin-mate, Blocknutzung, Line closing
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 5R2/8/B5p1/5r2/4N2N/2Q1b3/p3P3/Rr3k1K
Reprints: A Rochade 211, p. 18, 13/02/1982
Input: Felber, Volker, 2013-10-31
Last update: Dieter Berlin, 2022-10-28 more...
54 - P1280391
Alexander Lehmkuhl
7047 Die Schwalbe 124 08/1990
Günter Glaß zum 65. Geburtstag gew.
P1280391
(10+7)
s#7
a4,f2,a1=Grashüpfer
1. Lb8! h5 2. Kf4 h6 3. Tg7 Gh8 4. Tg2 Ga8 5. Le5 Gh1 6. Tg4 hxg4 7. Gxg4+ Tf3#
play all play one stop play next play all
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2021-03-27)
Henrik Juel: ditto with 'non 2 1', so the problem may well be correct (2021-03-28)
Henrik Juel: Steen Christensen has tested this problem C+, both with Alybadix and his own Clib (2021-03-28)
Anton Baumann: Informalturnier 1990: Lob (2023-02-17)
comment
Keywords: Unpinning, Line opening, Round Trip, Block, Four corners (E11 g)
Pieces: du = Grasshopper (G)
Genre: Fairies
FEN: 8/7p/7p/5K2/*2Q6P/pr4B1/R1P1N*2QR1/*2q2knQ2
Input: Gunter Jordan, 2013-11-12
Last update: Rainer Staudte, 2021-03-27 more...
55 - P1283501
Feliciano Mendes de Moraes
Western Daily Mercury 18/12/1912
2. Preis
P1283501
(6+13) C+
#2
1. Dd7! droht 2. Dxb5#
1. ... e5 2. Sf7#
1. ... f4 2. Sf5#
1. ... Tf4 2. Se4#
1. ... Lxd6+ 2. Dxd6#
1. ... Se3 2. Td4#
1. ... c2 2. Ta3#
play all play one stop play next play all
AZW: Problemturniere für Zweizüger sind in England sehr beliebt. Heutige Aufgabe erhielt den zweiten Preis in dem soeben entschiedenen Turnier der Zeitschrift "Western Daily Mercury". Sie gefällt uns besser als der erste Preis (T.R.Dawson, P1036824)

Im Nachdruck in der AZW heißt es zum Autor: "Mendes de Moraes jun."
more ...
comment
Keywords: Unpinning (wS dreifach), Blocknutzung
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 1K4b1/B1Q5/3Np3/1p3p1r/R6p/2pk2b1/3p1rn1/3Bn3
Reprints: 37 Arbeiter-Zeitung (Wien) 15/06/1913
120 Arbeiter-Schachzeitung (Chemnitz) 7, p. 111, 07/1913
731 Beispiele zur Ideengeschichte des Schachproblems , p. 154, 1982
Input: Mario Richter, 2014-02-22
Last update: Dieter Berlin, 2023-04-09 more...
56 - P1287188
Michael Schreckenbach
4031 Sächsische Zeitung 17/05/2014
1. Lob
P1287188
(9+10) C+
#3*
* 1. ... Txb6+ 2. Kxb6 ... 3. Dc6#

1. Lf5! droht 2. Le6+ Ke4 3. Sc5#
1. ... Tc8 2. Td6+ exd6 3. Sdb6#
1. ... Lxf5 2. Se3+ fxe3 3. Dc4#
1. ... Txg2 2. fxe7 Tf8 3. Td6#
1. ... Txg2 2. fxe7 Txb6+ 3. Sdxb6#
1. ... Txg2 2. fxe7 Lxc4+ 3. Dxc4#
1. ... f3 2. gxf3 Lxf5 3. Se3#
1. ... f3 2. gxf3 Txb6+ 3. Sdxb6#
1. ... f3 2. gxf3 Lxc4+ 3. Dxc4#
play all play one stop play next play all
„Weglenkungen von schwarzem Turm bzw. schwarzem Läufer führen zur Entfesselung von Turm bzw. Springer. Diese Entfesselungen können für ansehnliche Matts genutzt werden. Gut gemacht.“ (J.Schottenhamel). Das Gegenschach im Satz ist harmlos 1...T:b6+ 2.K:b6 3.Dc6 matt. Die Lösung 1.Lf5! (droht 2.Le6+ Ke4 3.Sc5 matt) Tc8 2.Td6+ (A) ed6 3.Sdb6 matt, 1...L:f5 2.Se3+ (B) fe3 3.Dc4 matt, 1...T:g2 2.fe7 (3.Sf6) Tf8/T:b6+/L:c4+ 3.Td6 (A)/Sdb6/Dc4 matt; 1...f3 2.gf3 (3.Le6) L:f5/T:b6+/L:c4+ 3.Se3 (B)/Sdb6/D:c4 matt (3 Punkte) zeigt die Züge Td6/Se3 als Zweit- und Drittzüge nach entfesselnden Zügen von Schwarz.

Preisrichter: F. Richter
more ...
comment
Keywords: Unpinning
Genre: 3#
Computer test: SCHRECKE: popeye 4.83
FEN: 1r6/3Np3/1R3PB1/pK1kp3/Q1N2p2/2Pb2p1/2p3Pr/8
Input: Felber, Volker, 2014-08-23
Last update: Dieter Berlin, 2023-11-21 more...
57 - P1290391
Walter Böttcher
520 Allgemeine Zeitung Chemnitz 24/10/1926
P1290391
(10+7) C+
s#2
1. Lg1! Sf2 2. Sa4 Sc1#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 2Q5/k3bR2/8/2N5/1pNB4/1Kp3p1/n1P3P1/RB5n
Input: Felber, Volker, 2014-11-07
Last update: Dieter Berlin, 2024-02-28 more...
58 - P1376079
Eberhard Schulze
2336 Rochade Europa 01/11/2008
P1376079
(4+9) C+
h#3
2.1...
1) 1. Lg1-b6 Lh2-g1 2. Dc6-d7 Lg1xb6 3. La8-d5 Lb6-c5#
2) 1. Ta3-g3 Ta6-a3 2. Te5-e7 Ta3xg3 3. Sg5-e6 Tg3-d3#
play all play one stop play next play all
Eberhard Schulze: Hilfsmattpremiere (ES) (2023-05-06)
comment
Keywords: Umnov, Unpinning
Genre: h#
Computer test: Popeye 4.83
FEN: b7/2p5/R1qk4/1p2r1n1/1P6/r7/7B/3K2b1
Input: Marcin Banaszek, 2020-05-19
Last update: Eberhard Schulze, 2023-05-06 more...
59 - P1403640
Raúl Jordan
18907 Die Schwalbe 314 04/2022
P1403640
(10+15) C+
s#2
1. Dh6? Ld4 2. c4+ Lxc4#, aber 1. ... Lxc3!
1. Df3? Lxc3 2. Dd5+ Lxd5#, aber 1. ... Ld4!

1. Dh1! droht 2. Sxd6+ Lxd6#
1. ... Lxc3 2. Dd5+ Lxd5#
1. ... Ld4 2. Db1+ Lb3#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-02-13)
comment
Keywords: White correction (2. Grades, reziprok), Dual avoidance, Unpinning, half-battery, black, Option key
Genre: s#
FEN: 2NBR2n/1r1BKppn/Npqpb1p1/1k2b2Q/5p2/R1PP4/3pr3/8
Input: Gunter Jordan, 2022-08-13
Last update: Marcin Banaszek, 2023-02-16 more...
60 - P1403642
Horst Böttger
Bert Kölske
18917 Die Schwalbe 314 04/2022
P1403642
(3+11) C+
h#3
0.2.1...
1) 1. ... Tc2 2. Lb3 Le5 3. dxe5 Tc6#
2) 1. ... Th8 2. Sb5 Lf6 3. exf6 Te8#
play all play one stop play next play all
Yuri Bilokin: more economical b1=a1, then -bPd4, +bBc1, wRg2-h4 8/rnnpp3/2pk4/2p1p3/7R/8/B7/K1b5 (3+10) Use of the board: 100% (2022-08-16)
comment
Keywords: Unpinning, Line opening, Model mate, Exchange of roles (l-s b-b), Echo
Genre: h#
FEN: 8/1rnnpp2/3pk3/3p1p2/b3p3/8/1B5R/1K6
Input: Gunter Jordan, 2022-08-13
Last update: Gunter Jordan, 2023-04-15 more...
61 - P1404033
Gregory Lewis
5108 Die Schwalbe 93, p. 485, 1985
4. ehrende Erwähnung
Informalturnier Zweizüger
P1404033
(11+10) C+
#2
1. Sxf2? Tc4! 1. Se5? Lc4! 1. Sxf6? Lb4! 1. Sh6? Tb4!

1. Se3! droht 2. Sf3#
1. ... Tc4 2. Dxf2# 1. ... Lc4 2. Th5# 1. ... Tb4 2. h8=D# 1. ... Lb4 2. Lxf6#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (präventiv, vierfach), Promotion in the mating move (wD), Deckungsverlust
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 1r6/4b1BP/4ppK1/R2b4/R2Np1Nk/3p3P/Q1r2p1P/5B2
Reprints: 45 Schweizer Schachkompositionen 1976-1986 , p. 21, 1989
Input: Dieter Berlin, 2022-09-05
Last update: Dieter Berlin, 2023-11-03 more...
62 - P1404035
Gregory Lewis
Deutsche Schachblätter 1983-1984
3. Preis
Informalturnier Zweizüger
P1404035
(9+10) C+
#2
1. Ld7? c6! 1. Lf5? Te6! 1. Lxg4? Dc6!

1. Lc8! droht 2. Lg7#
1. ... c6 2. Txh7# 1. ... Te6 2. Sef5# 1. ... Dc6 2. Sxg4#
1. ... Txf6 2. Dxf6#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (präventiv, dreifach), Bishop sacrifice
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/1Rp2R1p/Q3BBrk/p2Pr1p1/q5p1/4N1N1/3p3K/8
Reprints: 50 Schweizer Schachkompositionen 1976-1986 , p. 23, 1989
Input: Dieter Berlin, 2022-09-05
Last update: Dieter Berlin, 2022-09-06 more...
63 - P1404206
Rolf Wiehagen
Christer Jonsson
Manfred Nieroba
2679V Problemskak 58, p. 12, 04-06/2022
P1404206
(3+14) C+
h#2
2.1...
1) 1. Da7+ Txa7 2. Sa6 Txh7#
2) 1. Db7+ Dxb7 2. Sc6 Dxh7#
play all play one stop play next play all
Matts auf dem gleichen Feld.

Vergleiche: P1404295
more ...
comment
Keywords: Checking key, Liniensperrung, Unpinning, pin-mate, Exchange of roles (D-T), Model mate, x pieces capture on one square, Pelle move, Critical move
Genre: h#
Computer test: C+ Popeye 4.61
FEN: Kn6/6qp/5p2/5pp1/R3Q1nk/5br1/rp2p3/6b1
Input: Gunter Jordan, 2022-09-09
Last update: A.Buchanan, 2022-09-16 more...
64 - P1405320
Imre Regös
Tijdschrift van den Nederlandsch-Indischen Schaakbond 1928
1. Preis
Turnier des Niederländisch-Ostindischen Schachbunds 1928
P1405320
(8+10) C+
#2
1. Dxc6! Sb7 2. Dxf6# 2. De6#?
1. ... Se4 2. De6# 2. Dxf6#?
play all play one stop play next play all
Schor-Thema mit zwei Simultan-Entfesselungsvarianten

Duplicate Diagram: P1024033

more ...
comment
Keywords: pin-mate, selfpinning (w), Unpinning (s), Schor
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: b2rr3/R2qk2N/2pn1p2/2Q2P1B/1N3p2/4nK2/4R3/8
Reprints: CXL Ungarische Schachproblem Anthologie , p. 106, 1983
Input: Dieter Berlin, 2022-10-23
Last update: Dieter Berlin, 2022-10-23 more...
65 - P1405330
Florian J. Kovacs
Magyar Sakkvilag 1949
1. Preis
P1405330
(7+7)
#6
1. Lc1! Te3 2. Tf7+ Ke5 3. Tf5+ Kd4 4. Td5+ Kc3 5. Td3+ Txd3 6. Se2#
1. ... Txc5 2. Tg6+ Ke5 3. Te6+ Kd4 4. Te4+ Kc3 5. Tc4+ Txc4 6. Sb5#
play all play one stop play next play all
Henrik Juel: dual 1... Tf3 2.Tg6,Tf7+ (2023-03-19)
comment
Keywords: Rook sacrifice, Blocknutzung, Unpinning (Schlüssel), Model mate, Echo
Genre: n#
FEN: 5K2/6R1/3N1k2/2P5/1p3N1p/1rr4P/1Bp5/6b1
Reprints: 1267 Beispiele zur Ideengeschichte des Schachproblems , p. 255, 1982
CLXXXIII Ungarische Schachproblem Anthologie , p. 122, 1983
Input: Dieter Berlin, 2022-10-23
Last update: Dieter Berlin, 2023-03-19 more...
66 - P1405335
Imre Olasz
Sydsvenska Dagbladet Snällposten 1923
P1405335
(8+8) C+
#2
1. Te8! droht 2. Dd5#
1. ... Le5 2. Dc6#
1. ... Se5 2. Dd4#
1. ... e5 2. Dd4#
play all play one stop play next play all
more ...
comment
Keywords: pin-mate, Unpinning (w + s, 2x simultan), Sperrwechsel (doppelt)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 3R2bq/6b1/4p1B1/K1Q2r2/1N2k1n1/2B2rP1/3P4/8
Reprints: LXIII Ungarische Schachproblem Anthologie , p. 80, 1983
Input: Dieter Berlin, 2022-10-24
Last update: Rainer Staudte, 2022-10-25 more...
67 - P1407433
Georg Fröhlich
? 1971
Preis
Nationales Problemturnier 1971
P1407433
(8+6) C+
#2
1. Te3? g4! 1. Tb3? Da2! 1. Td3? exd3! 1. Tf3? exf3!

1. Tc3! La7 2. Tc5#
1. ... Lg1 2. Te3#
1. ... e3 2. Txe3#
1. ... Lxc3 2. Dxc3#
1. ... g4 2. Lf4#
1. ... Da2 2. Db8#
1. ... Dxd5+ 2. Txd5#
play all play one stop play next play all
more ...
comment
Keywords: Sacrifice key (T), Mousetrap, Unpinning, discovered checkmate, pin-mate, Deckungsverlust
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: q2R4/4NK1n/8/3Pk1p1/3bp3/6RN/1Q6/2B5
Reprints: 30 Problemschach [Siehndel] , p. 97, 1985
Input: Dieter Berlin, 2023-01-25
Last update: Dieter Berlin, 2023-01-25 more...
68 - P1408618
Udo Degener
Mirko Degenkolbe
9376 Phénix 335 10/2022
P1408618
(9+7) C+
h#5
0.1.1...
Nullstellung
a) +wSe3
b) +wLc1
c) +wTa1
a) 1. ... Sf5 2. h5 e3 3. h4 Sxh4 4. Kg8 Sxg6 5. Th7 Lc4#
b) 1. ... e3 2. Th5 Lc4 3. Tf5 exf5 4. e4 fxg6 5. Lxb2 Lxb2#
c) 1. ... 0-0-0 2. Txf1 d4 3. Tf7 dxe5 4. Lf6 exf6 5. Th7 Td8#
play all play one stop play next play all
(MD1862)
more ...
comment
Keywords: Model mate, Castling (wl in c), Line opening (in a), Selfblock (in a+c), Model mate, Unpinning, Corner mate (in b+c), Line opening
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 7k/6b1/6pp/4p3/4P3/6p1/PPPPP1P1/4KB1r
Input: Felber, Volker, 2023-03-31
Last update: Gunter Jordan, 2023-04-02 more...
69 - P1408711
George P. Sphicas
8028 Phénix 2017
1. Preis
PR Tadashi Wakashima
P1408711
(6+8) cooked
ser-h=27
1. f1=T 2. Tf2 3. Tb2 4. f2 5. f1=S 6. Sd2 7. f3 8. f2 9. f1=L 10. Ld3 11. Lb1 12. Sc2 13. f4 14. f3 15. f2 16. f1=D 17. D1f4 18. Dxd6 19. Dc7 20. f5 21. f4 22. f3 23. f2 24. f1=L 25. Lc4 26. Lca2 27. b3 Dxc7=
play all play one stop play next play all
Cook: Paul Raican:
1. f1=T 2. Tf2 3. Tb2 4. f2 5. f1=S 6. Sd2 7. f3 8. f2 9. f1=D 10. Df4 11. Dxd6 12. f4 13. Dc7 14. f3 15. f2 16. f5 17. f1=L 18. Ld3 19. Lb1 20. Sc2 21. f4 22. f3 23. f2 24. f1=L 25. Lc4 26. Lca2 27. b3 Dxc7=
more ...
comment
Keywords: Allumwandlung, black, Unpinning, pin-stalemate, konsekutive Umwandlungen 5 (tsldl), Liniensperrung, Model stalemate, Check Protection, Selfblock, Promotion (d), Promotions to bishops, under-promotion (tlls), Seriesmover, Antiphönix
Genre: Fairies
FEN: 8/8/1P1P1pKB/5p1B/1p3p2/n4p2/5p1Q/2k5
Input: Gunter Jordan, 2023-04-05
Last update: Olaf Jenkner, 2024-02-25 more...
70 - P1408770
Marko Ylijoki
H4671 The Problemist 29-2, p. 63, 03/2023
P1408770
(3+12) C+
h#6
0.2.1...
1) 1. ... b8=D+ 2. Kg4+ Df4+ 3. Kh5 Dd2 4. Le3 fxe3 5. Kg4 Dd1 6. Kg3 Dg1#
2) 1. ... b8=T 2. b2+ Txb2 3. d2+ Kxc2 4. d1=S Kd3 5. Se3 Te2 6. Sf5 Te4#
play all play one stop play next play all
Yuri Bilokin: you can see 1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bf6 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Be7 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bd8 Qxf3#
1.Bf6 b8=Q+ 2.Kg4 Qxb3 3.h2 Qd5 4.Kh3 Qxf3# (2024-02-29)
comment
Keywords: Checking key (in 1), Promotion key (in 1), under-promotion key (in 2), under-promotion (ts in 2), konsekutive Umwandlungen 2 (ts in 2), bi-coloured Bristol (in 1), Cross check (in 1), Discovered check (in 1), selfpinning (in 1), Unpinning (in 1), Switchback (k in 1), Model mate (in 1), Exchange of Promotions
Genre: h#
FEN: 5n1n/1P6/8/6b1/5k1p/pppp1p1p/2p2P2/2K5
Input: Gunter Jordan, 2023-04-10
Last update: Felber, Volker, 2023-10-15 more...
71 - P1408897
Marko Ylijoki
H1852 Probleemblad 1/23 01-03/2023
Onerva gewidmet
P1408897
(3+15) C+
h#6
0.2.1...
1) 1. ... d8=T+ 2. Kc4+ Td3 3. Lg8 Txb3 4. Sc7 Txe3 5. Dc2+ Kxc2 6. Sd5 Te4#
2) 1. ... d8=L 2. Lf5 Lf6 3. Lh3 Lxb2 4. Kd2 Lf6 5. Ke1 Kc1 6. Lf1 Lh4#
play all play one stop play next play all
Yuri Bilokin: you can see h#3 1.c4 d8=Q+ 2.Rd5 Qxa5 3.c3 Qxd5# (2023-04-19)
comment
Keywords: under-promotion key (t,l), under-promotion (t,l), Checking key (in 1), Cross check (in 1), Discovered check (in 1), Königsbatterie (in 1), selfpinning (in 1), Unpinning (in 1), Line opening (in 1), Selfblock, Switchback (L in 2), Model mate (in 2)
Genre: h#
FEN: 8/3P3b/n7/rrp5/qp3p2/pp1kpP2/1p2p3/bK6
Input: Gunter Jordan, 2023-04-15
Last update: Gunter Jordan, 2023-07-25 more...
72 - P1409040
Frank Richter
TT-268 SuperProblem (Website) 08/04/2022
1. Preis
P1409040
(11+13)
s#2
1. e6! droht 2. Df5+ Dxf5#
1. ... b5 2. Dxc4+ bxc4#
1. ... c5 2. Dxd4+ cxd4#
1. ... cxd5 2. Lxc4+ dxc4#
1. ... f5 2. De4+ fxe4#
play all play one stop play next play all
Thema: Mindestens zwei schwarze Bauernbatterien setzen matt. Dieser Task mit vier Abspielen erhielt vom PR Sergej Borodawkin den Spitzenplatz.
SCHRECKE: C+, popeye 4.87 (2023-04-25)
comment
Keywords: Line opening, Line closing, selfpinning, Pelle move, Unpinning, Queen sacrifice (4-fach), Batteriematt horizontal, discovered checkmate
Genre: s#
FEN: 5R2/5rp1/ppp2pP1/q2QP2K/rppb3P/3k1P2/B1R4n/N5B1
Input: Frank Richter, 2023-04-25
Last update: Gunter Jordan, 2023-04-26 more...
73 - P1409344
Frank Richter
1353 Hlas ludu 24/11/1983
4. ehrende Erwähnung
P1409344
(11+9)
#2
1. Tc5? droht 2. Se2#, 1. ... Lg6!
1. ... Tg6 2. Txf5#
1. Lc5? droht 2. Se2#, 1. ... Tg6!
1. ... Lg6 2. Ld6#
1. Sb6? droht 2. Se2#, 1. ... Sc5!
1. Tg6! droht 2. Txf5,Ld6#
1. ... Txg6 2. Txf5#
1. ... Lxg6 2. Ld6#
1. ... Sc5 2. Se2#
1. ... Lxd2 2. Lxd2#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-05-06)
comment
Keywords: theme A, Grimshaw, Nowotny, Unpinning, white self-obstruction
Genre: 2#
FEN: 8/K2N1pRb/n6r/R4p2/1B1N1k1P/3Pb1p1/3Q2Pn/3B4
Input: Frank Richter, 2023-05-06
Last update: Frank Richter, 2023-05-06 more...
74 - P1409576
Eberhard Schulze
15048 Die Schwalbe 252, p. 354, 12/2011
P1409576
(6+12) C+
h#3
b) +sTd8
a) 1. Dxa8 bxa3 2. Sc5 a4 3. Db7 b5#
b) 1. Dxe6 gxf6 2. Sb5 fxe7 3. Dd6 exd8=S#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning, Twin, Capture key, under-promotion in mating move (in b), under-promotion (S in b)
Genre: h#
Computer test: Gustav 4.2
FEN: B5q1/1nppp3/1bknRp2/3p2P1/1P2p3/p7/1P6/5K2
Input: Eberhard Schulze, 2023-05-12
Last update: Felber, Volker, 2023-06-23 more...
75 - P1409665
Eberhard Schulze
Problem-Forum 01/06/2017
P1409665
(4+15) C+
h#3
Zwilling
a) Diagramm
b) sLf5->b5
a) 1. Sc5 Td3 2. Sh5 Td1 3. Sf6 Lxg3#
b) 1. Lf1 Lf2 2. Sf6 Txg3 3. Td6 Tg5#
play all play one stop play next play all
Schwarz entfesselt einen weißen Stein, damit dieser seinen weißen Kollegen ebenfalls entfesseln kann.
more ...
comment
Keywords: Unpinning
Genre: h#
Computer test: Gustav 4.2
FEN: 3r4/q2n4/1b6/3Pkb2/1p2pn2/1p2R1pp/p5p1/r3B1K1
Input: Eberhard Schulze, 2023-05-15
Last update: Felber, Volker, 2023-06-30 more...
76 - P1409871
Wolfgang Berg
Wochenpost 9 23/02/1995
P1409871
(8+11) C+
#2
1. Db6! droht 2. De6#
1. ... Sd4 2. Sg4# 2. Sc4?
1. ... Sg5 2. Sc4# 2. Sg4?

1. ... Ke4 2. Dd4#
play all play one stop play next play all
more ...
comment
Keywords: Dual avoidance, Unpinning, Flight-giving key, pin-mate (zweifach)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 8/r3p3/p4p2/3Pkb1R/1Q5n/2r1Nn2/K3N1Bq/B3b3
Reprints: 366 Problemschach-Jahrbuch 1995 D , p. 152, 1995
Input: Dieter Berlin, 2023-05-21
Last update: Rainer Staudte, 2023-05-22 more...
77 - P1410139
Herbert Ahues
788 Neue Osnabrücker Zeitung 21/05/1994
2. Preis
P1410139
(11+8) C+
#2*
* 1. ... Txe4 2. Sf7#

1. d3? droht 2. Sf7# 1. ... Sb6! 1. f3? droht 2. Sf7# 1. ... Tc6!

1. Dh1! droht 2. Sf7# 1. ... Sb6 2. f4# 1. ... Tc6 2. d4# 1. ... Sc6 2. Sxc4#
play all play one stop play next play all
H. Ahues: Erstmalige Darstellung einer w. Halbfesselung + Lewmann (Verführungen)
more ...
comment
Keywords: Levman defence (dreifach), half-pin white pieces, Pawn mate (zweifach), Unpinning (Schlüssel)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 5R2/3B4/R2N4/n2nkN2/2r1P3/pp2p1P1/1r1P1P1K/Q7
Reprints: 169 Problemschach-Jahrbuch 1994 D, p. 78, 1994
Input: Dieter Berlin, 2023-06-04
Last update: Dieter Berlin, 2023-06-04 more...
78 - P1410142
Herbert Ahues
Stern 12 17/03/1994
P1410142
(8+4) C+
#2
1. Te5! droht 2. Sb5#
1. ... Ta7+ 2. Sa5#
1. ... Tg3+ 2. Se3#

1. ... Tb7 2. Sb6#
1. ... La4 2. Sf5#
play all play one stop play next play all
more ...
comment
Keywords: Cross check (zweifach), Unpinning
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 7B/6r1/3N3b/R7/1RNk4/K7/1Pb1P3/8
Reprints: 212 Problemschach-Jahrbuch 1994 D, p. 102, 1994
Input: Dieter Berlin, 2023-06-04
Last update: Dieter Berlin, 2023-06-04 more...
79 - P1410169
Herbert Ahues
Stern 22 26/05/1994
P1410169
(12+7)
#2
1. Sc7! droht 2. Se6# 1. ... droht 2. Sf5#
1. ... Sce5 2. Sb5#
1. ... Sfe5 2. Sc2#

1. ... Txc7 2. Dd6#
1. ... exd3 2. Df4#
play all play one stop play next play all
Henrik Juel: double threat and some duals (2023-06-05)
comment
Keywords: Doppeldrohung, Unpinning (s, zweifach), Anti-Lewman (zweifach), pin-mate (zweifach)
Genre: 2#
FEN: 2R4B/3r1P2/2n2r2/R1PN4/1p1kp3/3PNnQ1/1K3P2/1B6
Reprints: 219 Problemschach-Jahrbuch 1994 D, p. 104, 1994
Input: Dieter Berlin, 2023-06-05
Last update: Dieter Berlin, 2023-06-05 more...
80 - P1410366
Wolfgang Berg
Stern 36 01/09/1994
P1410366
(8+7) C+
#2
1. d5? Lxd5 2. Lf6# 1. ... Txd5 2. Lxf3# 1. ... Lc8!

1. Tg4! droht 2. Th4#
1. ... Kxg4 2. Lf6#
1. ... Sxg5 2. Te4#
play all play one stop play next play all
more ...
comment
Keywords: Flight giving sacrifice key, Unpinning (-Schlüssel), pin-mate, discovered checkmate
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 7K/bb2N3/r5R1/1r2Q1Bk/3P4/5n1p/8/3B2R1
Reprints: 230 Problemschach-Jahrbuch 1994 D , p. 108, 1995
Input: Dieter Berlin, 2023-06-16
Last update: Rainer Staudte, 2023-06-18 more...
81 - P1410402
Hanspeter Suwe
3254 Kieler Nachrichten 27/08/1994
P1410402
(3+10) C+
#4
1. Dg8! d3 2. Kc5 e3 3. Sg3 c3 4. Db8#
1. ... e3 2. Sg3 d3 3. Kc5 c3 4. Db8#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/5p2/2K1pp2/3pkp2/2pppn2/6Q1/8/5N2
Reprints: 71 Problemschach-Jahrbuch 1994 D , p. 39, 1995
Input: Dieter Berlin, 2023-06-18
Last update: Dieter Berlin, 2023-06-18 more...
82 - P1410423
Herbert Ahues
Stern 46 07/11/1991
P1410423
(9+11) C+
#2
1. Kb6! droht 2. Txc5#
1. ... f3 2. Se7#
1. ... Sf3 2. Dg8#
1. ... Lf3 2. Da2#
1. ... Tf3 2. Txd4#

1. ... Se6 2. Dxe4#
play all play one stop play next play all
more ...
comment
Keywords: Line opening, Unpinning (sSe4, vierfach)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 8/1K6/2NN3b/pRpkPPn1/3pnp2/2pr4/4b1QB/3R4
Reprints: Problemschach-Jahrbuch 1994 D , p. 114, 1995
Input: Dieter Berlin, 2023-06-19
Last update: Dieter Berlin, 2023-06-19 more...
83 - P1410452
Herbert Ahues
Stern 46 05/11/1992
P1410452
(9+7) C+
#2
1. Le2! droht 2. Lf3#
1. ... Dxd4 2. Lg4#
1. ... Dxf4 2. Lc4#
1. ... Ld1 2. Ld3#

1. ... Tg3 2. Dxe7#
1. ... Dxe2 2. Txe2#
play all play one stop play next play all
more ...
comment
Keywords: pin-mate (vierfach), Unpinning (Schlüssel), Sacrifice of white pieces (S,S,L), Sacrifice key
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/1KB1p1r1/B4n2/8/pQ1NkN1R/2P1q3/2b5/4R3
Reprints: 226 Problemschach-Jahrbuch 1992 D , p. 104, 1993
Input: Dieter Berlin, 2023-06-20
Last update: Dieter Berlin, 2023-06-21 more...
84 - P1410734
Herbert Ahues
Der Tagesspiegel 25/07/1993
P1410734
(9+8) C+
#2
1. De2! droht 2. Sf6#
1. ... S2e3 2. Sxf5#
1. ... S5e3 2. Sxc2#
1. ... Txe4 2. fxe4#
1. ... Dd8 2. Lc6#
1. ... Tf8 2. Le6#
play all play one stop play next play all
more ...
comment
Keywords: discovered checkmate, Unpinning, Pawn mate, Deckungsverlust
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 4r2B/2qB4/Q2p4/R1bk1n2/1p1NN3/5P2/2nR1K2/8
Reprints: 115 Problemschach-Jahrbuch 1993 D , p. 58, 1994
Input: Dieter Berlin, 2023-07-04
Last update: Dieter Berlin, 2023-07-05 more...
85 - P1410831
Herbert Ahues
Hannoversche Allgemeine Zeitung 15/04/1995
P1410831
(9+8) C+
#2
1. Sd4? droht 2. e4# 1. ... Te5 2. Db7# 1. ... Te6 2. Dxe6# 1. ... Sd2!

1. Ld4! droht 2. e4# 1. ... Te5 2. Dxe5# 1. ... Te6 2. Db7# 1. ... Sd2 2. Txc5#
play all play one stop play next play all
more ...
comment
Keywords: Bikos theme, Unpinning, Pawn mate (Drohung), Blocknutzung
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/4Q3/R2P3r/pRbk3r/7p/Nn2P3/1BN3p1/6K1
Reprints: 663 Problemschach-Jahrbuch 1995 D , p. 266, 1996
Input: Dieter Berlin, 2023-07-09
Last update: Dieter Berlin, 2023-07-09 more...
86 - P1410937
Herbert Ahues
1256 Landeszeitung für die Lüneburger Heide 11/01/1992
P1410937
(5+6)
#2
1. Kc7! droht 2. Dd6#
1. ... Dc1+ 2. Sc4#
1. ... Df6 2. Sc6#
1. ... Df7 2. Sg6#
play all play one stop play next play all
SCHRECKE: 1. ... Df7 2. Sg6,Sxf7# (Mattdual) (2023-07-16)
comment
Keywords: Provoked check, Cross check, Unpinning (dreifach)
Genre: 2#
FEN: 1K3b2/3pk3/1Q5p/4N2B/4Rq2/3p4/8/8
Reprints: 2 Problemschach-Jahrbuch 1992 D , p. 10, 1993
Input: Dieter Berlin, 2023-07-15
Last update: Dieter Berlin, 2023-07-15 more...
87 - P1410947
Herbert Ahues
Der Tagesspiegel 28/06/1992
P1410947
(9+10) C+
#2
1. Df7! droht 2. g3#
1. ... Txf7 2. T5xe4#
1. ... Tc4 2. Txf5#
1. ... Td4 2. dxe3#
1. ... Ld4 2. Sd3#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (vierfach), Sacrifice key, Line closing, double-check mate (zweifach), Pawn mate
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 1B1r4/1qr4b/1b6/4Rnp1/R3nkN1/1Q2p2K/3P2P1/4N3
Reprints: 109 Problemschach-Jahrbuch 1992 D , p. 58, 1993
Input: Dieter Berlin, 2023-07-16
Last update: Dieter Berlin, 2023-07-16 more...
88 - P1411154
Enzo Minerva
SS109 The Hopper Magazine I04 13/07/2023
P1411154
(2+2) C+
h#2
2.1...
Sentinelles
1. Kg4[+sBg5] Df2[+wBd2] 2. Kh3[+sBg4] Dg3[+wBf2]#
1. Kh5[+sBg5] Dg2[+wBd2] 2. Kh4[+sBh5] Dh3[+wBg2]#
play all play one stop play next play all
more ...
comment
Keywords: Aristocrat, Minimal (D/l), Unpinning, Sentinels, Miniature
Genre: h#, Fairies
Computer test: popeye 4.87
FEN: 8/8/8/6k1/8/4b3/3Q4/2K5
Input: Miguel Ambrona, 2023-07-25
Last update: A.Buchanan, 2023-07-27 more...
89 - P1411355
Boris Shorokhov
Valery Semenenko

1. Preis, Abdelaziz-Onkoud-45 JT 2019
P1411355
(11+5) C+
h#4
1. Dc4 Sbd4 2. Dxe6 Sxe6 3. Lf1 Scd4 4. Lh3 Sf5#
1. Lc4 Scd4 2. Lxe6 Sxe6 3. Df1 Sbd4 4. Dh3 Sf5#
play all play one stop play next play all
Schlüssel auf das gleiche Feld.
more ...
comment
Keywords: x pieces move to one square, Unpinning, Model mate, Tschumakow Theme, Selfblock, changed blocks, Exchange of roles (S-S d-l)
Genre: h#
Computer test: C+ Popeye 4.61
FEN: 8/4p3/2p1P3/1qP1P3/4P1Pk/1N1bP3/2NP4/1K1B4
Input: TLi, 2023-07-28
Last update: A.Buchanan, 2023-07-28 more...
90 - P1411620
Lörinc Bata
Magyar Sakkelet 1953
P1411620
(6+7) C+
#8
1. Ta1! d4 2. La2 d5 3. Lb1 Le3 4. Lc2+ Lg1 5. Ld1 Le3 6. Le2+ Lg1 7. Lf1 Le3 8. Lg2#
play all play one stop play next play all
more ...
comment
Keywords: double-check mate, Zig Zag Path (L), Schlüssel = Eckzug, Discovered check, Unpinning, Corner mate
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/8/3pB3/3p4/p4p2/P2P1P1K/7p/4R1bk
Reprints: 190 Ungarische Schachproblem Anthologie , p. 176, 1983
Input: Dieter Berlin, 2023-08-05
Last update: Gunter Jordan, 2023-08-06 more...
91 - P1411650
Laszlo Talaber
? 1970
Turnier des Budapester Schachverbandes, 1970
1. Preis
P1411650
(7+14) C+
s#2
1. De6! droht 2. De5+
1. ... Sb4 2. Dxf5+
1. ... Sb6 2. Dxe3+
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (w. Figuren)
Genre: s#
Computer test: SCHRECKE: popeye 4.87
FEN: b5Q1/b7/3p1N2/p1Rn1p2/r1NK1k1P/r2pp1n1/p5P1/2q5
Reprints: 208 Ungarische Schachproblem Anthologie , p. 181, 1983
Input: Dieter Berlin, 2023-08-07
Last update: Dieter Berlin, 2023-08-07 more...
92 - P1411722
Jozsef Nemeth
Tolna Megyei Nepujsag 1961-1962
1. Preis
P1411722
(7+5) C+
#2
1. Le6? Txc4! 1. Sxc7? Lxc7! 1. Sg7? Txc4!

1. Sf6! droht 2. Le8#
1. ... dxc5+ 2. Sd5#
1. ... Te4 2. Ld5#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning (Schlüssel), Cross check
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 1b1KN3/2p2B2/2kp3R/1RP5/2Pr4/8/8/8
Reprints: 550 Ungarische Schachproblem Anthologie , p. 329, 1983
Input: Dieter Berlin, 2023-08-13
Last update: Dieter Berlin, 2023-08-13 more...
93 - P1411870
Heinrich Rübesamen
V. Münchner Neueste Nachrichten 18/07/1909
P1411870
(8+13)
#4
1. Dh5! Txh5 2. c3 Df5 3. Tbxf4+ Dxc5 4. Ta4#
play all play one stop play next play all
Henrik Juel: some duals like 1... Txc5 2.Dxc5 Dc7 3.Tb3,Ta4,Tbxf4+,c3,c4 (2023-08-20)
comment
Keywords: Preplan, Sacrifice key, Sacrifice of white pieces (D, L), Unpinning, Focus
Genre: n#
FEN: 7Q/pp3qp1/3rp3/2Br4/1R3p1R/k7/p1Pp4/N1bN1Kn1
Reprints: 84 Brennpunktprobleme , p. 108, 1926
Input: Dieter Berlin, 2023-08-20
Last update: Dieter Berlin, 2023-08-20 more...
94 - P1412710
Gunter Jordan
5041 Sachmatija 01/23 01-03/2023
P1412710
(11+12)
#2
1. Ld7? droht 2. Lxe6#
1. ... Te3 2. Td4#
1. ... Lxd7 2. bxc4#
1. ... Sg5 2. Sf6#
1. ... Dxf4+ 2. Sxf4#, aber 1. ... g5!

1. Lf7! droht 2. Lxe6#
1. ... Te3 2. Td4#
1. ... g5 2. Tf5#
1. ... Ld7 2. bxc4#
1. ... Sg5 2. Sf6#

1. ... Dxf4+ 2. Sxf4#
1. ... Lc6 2. bxc4#
1. ... Ld6 2. Txd6#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 also (2023-10-04)
comment
Keywords: Unpinning, White correction, Pinning, pin-mate
Genre: 2#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 4Bb2/1p5n/1R2p1pq/1bPk4/1Pp2RN1/1PBr1P2/2p1N3/2Kn4
Input: Gunter Jordan, 2023-10-04
Last update: Gunter Jordan, 2023-10-04 more...
95 - P1412741
Nils Gustav Gerhard van Dijk
Probleemblad 1973
Informalturnier 1973
2. Preis
P1412741
(10+14)
#3
1. Tc4! droht 2. Sed3+
1. ... Lc2 2. Sxe2+ ... 3. Sxc3#
1. ... Txe1 2. Sxg2+ ... 3. Sxe3#
1. ... Td8 2. Sxg6+ ... 3. Se7#
1. ... De8 2. Sxe6+ ... 3. Sxc7#
play all play one stop play next play all
Henrik Juel: duals after 1... Dd7 (2023-10-05)
comment
Keywords: Siers-Rössel, Unpinning (vierfach)
Genre: 3#
FEN: 2q3r1/2p2Q2/n1R1pPp1/1P2k3/5NK1/1Pb1p3/3np1pB/1B1bN1r1
Reprints: 1734 Deutsche Schachblätter 3, p. 72, 03/1975
Input: Dieter Berlin, 2023-10-05
Last update: Dieter Berlin, 2023-10-05 more...
96 - P1413169
Valery Surkov
ru_chess_art 24/10/2023
P1413169
(4+3)
s#5*
* 1. ... Kc2 2. Sc4! Kb3 3. Sa3! Kxa3 4. Dc1+ Kb3 5. Db2+ cxb2#
1. Sd5! Kc2 2. Sf4! Kb3 3. Se2! Kc2,Ka3 4. Dc1+ Kb3 5. Db2+ cxb2#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-10-25)
comment
Keywords: Miniature, Pawn mate, Corner mate, Switchback (k), Model mate, Queen sacrifice, Unpinning
Genre: s#
FEN: 8/8/1N6/8/3R4/1kp1Q3/p7/K7
Input: Rainer Staudte, 2023-10-25
Last update: Gunter Jordan, 2023-10-25 more...
97 - P1413332
Emil Mächler
Basler Zeitung 1984
P1413332
(10+6) C+
#2
1. Da5! droht 2. Lxd4#
1. ... Da1 2. La3#
1. ... Dc3 2. Lb4#
1. ... Df2 2. Lxf2# 1. ... Dg1+ 2. Lxg1#
1. ... Dxc4 2. Lxc4#
1. ... Ke5 2. Ld6#
play all play one stop play next play all
more ...
comment
Keywords: Battery creation, Unpinning (der sD), discovered checkmate, double-check mate, Line closing (wL)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 3NN2b/8/8/2Bk4/2Rq4/1P3Pp1/3QB1K1/1b1rR3
Reprints: 71 Schweizer Schachkompositionen 1976-1986 , p. 29, 1989
Input: Dieter Berlin, 2023-11-03
Last update: Dieter Berlin, 2023-11-03 more...
98 - P1413432
?
24 heures (Lausanne) 1982
E. Bernard in mem.
P1413432
(11+10) C+
#2*
* 1. ... Sc5 2. Dc3# 1. ... Se5 2. Le3#

1. e4? droht 2. c5# 1. ... Txe4 2. Sf3# 2. Se6+? 1. ... Lxe4 2. Se6# 2. Sf3+? 1. ... Se5!

1. Sc3! droht 2. c5# 1. ... Sc5 2. Sf3# 2. Se6+? 1. ... Se5 2. Se6# 2. Sf3+?
1. ... Sxb6 2. Dxb6#
1. ... Lf7 2. Txd3#
play all play one stop play next play all
Als Autor wird im Ndr. (1989) genannt: B. Buffoni .
more ...
comment
Keywords: Selfblock (zweifach, Satz), Changed mates, transferred mates, Unpinning (Lösung)
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 1b6/3n4/pP1p2b1/K2N2Nr/RQPk1B2/1p1p4/1P2P3/3Rr3
Reprints: 19 Schweizer Schachkompositionen 1976-1986 , p. 13, 1989
Input: Dieter Berlin, 2023-11-09
Last update: Dieter Berlin, 2023-11-09 more...
99 - P1413433
Jacques Cramatte
Geneve-Home Informations 1982
P1413433
(12+8) C+
#2*
* 1. ... Te4 2. Tf5#

1. Ld4? droht 2. Sxd3# 1. ... droht 2. Sxe6# 1. ... Te3!

1. Le4! droht 2. Tf5#
1. ... Sd4 2. Sxd3# 1. ... Se3 2. Sxe6#
1. ... Txe4 2. Tf6# 1. ... Lxe4 2. Se2#
play all play one stop play next play all
more ...
comment
Keywords: Sacrifice key, Nowotny, transferred mates, Unpinning (diagonal)
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 7B/K1pr4/2P1r1BR/2N4R/5k2/2Nb2pP/2nP1bP1/5Q2
Reprints: 20 Schweizer Schachkompositionen 1976-1986 , p. 13, 1989
Input: Dieter Berlin, 2023-11-09
Last update: Dieter Berlin, 2023-11-09 more...
100 - P1413437
Emil Mächler
4371 Die Schwalbe 82, p. 111, 1983
P1413437
(7+5) C+
#2
1. Dc5? Dxe2!

1. Db3! droht 2. Dd5#
1. ... Dh3+ 2. Se6#
1. ... Db5+ 2. Sxb5#
1. ... Dxd4+ 2. Dd5#
1. ... Dxe2 2. Sxe2#
1. ... Dxd2 2. Df3#
1. ... Dxb3 2. Sxb3#
1. ... Dc4 2. De3#
1. ... Sf5 2. De6#
play all play one stop play next play all
In der Schwalbe 1983 verdruckt mit sLg7 statt sS.
more ...
comment
Keywords: Unpinning (Schlüssel), Provoked check, Black correction (sD), discovered checkmate, Sacrifice key, Cross check, pin-mate
Computer test: SCHRECKE: popeye 4.89
FEN: 8/1p1K2n1/8/6R1/1R1Nk3/3q4/2QBPn2/8
Reprints: 70 Schweizer Schachkompositionen 1976-1986 , p. 29, 1989
Input: Dieter Berlin, 2023-11-09
Last update: Dieter Berlin, 2023-11-11 more...
next 14 problems
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