50 problem(s) found in 3939 milliseconds (displaying 50 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT S='Phenix' AND K='Bivalve'] [download as LaTeX]
1. Lf5-h3 (dr.Te1#) Diese Drohung kann durch jeden Zug der schwarzen Türme pariert werden, weil dadurch die Schrägen a8-h1 und a6-f1 frei werden. Auf 1. ... Tb5-c5 folgt 2. Tc4# (Bivalve), ebenso auf 1. ... Tc6-b6 2. Td4-b4# (Bivalve) 1. ... Txe6 2. Tf5# Andere T-Züge werden mit 2. Dd5 oder Dd6# erledigt. 1. ... Se7 2. Dh8#
1. Lh3! droht 2. Te1#
1. ... Tcb6 2. Tb4#
1. ... Tbc5 2. Tc4#
1. ... Txe6 2. Tf5#
1. Lh3! droht 2. Te1#
1. ... Tcb6 2. Tb4#
1. ... Tbc5 2. Tc4#
1. ... Txe6 2. Tf5#
Keywords: Brian Stephenson Collection (3180), Bivalve (zweifach), Block
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: qn1Q2n1/b7/b1r1P2p/pr2kB1p/3R4/8/1B6/5RK1
Reprints: 95 Valves and Bi-Valves , p. 107, 1930
329 Arbeiter-Zeitung (Wien) 03/08/1931
10 Glos Poranny 06/12/1931
Input: Brian Stephenson, 2004-08-12
Last update: Rainer Staudte, 2023-06-02 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: qn1Q2n1/b7/b1r1P2p/pr2kB1p/3R4/8/1B6/5RK1
Reprints: 95 Valves and Bi-Valves , p. 107, 1930
329 Arbeiter-Zeitung (Wien) 03/08/1931
10 Glos Poranny 06/12/1931
Input: Brian Stephenson, 2004-08-12
Last update: Rainer Staudte, 2023-06-02 more...
1. Sg4! Dd5 2. Dh6+
1. ... Ld5 2. Da2
1. ... Df3 2. Lxf3+
1. ... Dxg2 2. Dxg2+
Verführung: 1. Dh6? Le6! 2. Sd5 (g8) Sf5!
Lösung: 1. Sf6-g4 (dr.Sxe5) Dd5 (öffnet die Turmreihe, versperrt aber den Lb3) 2. Dh6+ Se6 3. Dxe6# 1. ... Ld5 (entfesselt die sD) 2. Da2 ~ 3. Da8 oder Sxe5# 1. ... Dxg2 (Df3) 2. Dxg2 (Lxf3)+ ~ 3. Se5 (Ld5)#
1. ... Ld5 2. Da2
1. ... Df3 2. Lxf3+
1. ... Dxg2 2. Dxg2+
Verführung: 1. Dh6? Le6! 2. Sd5 (g8) Sf5!
Lösung: 1. Sf6-g4 (dr.Sxe5) Dd5 (öffnet die Turmreihe, versperrt aber den Lb3) 2. Dh6+ Se6 3. Dxe6# 1. ... Ld5 (entfesselt die sD) 2. Da2 ~ 3. Da8 oder Sxe5# 1. ... Dxg2 (Df3) 2. Dxg2 (Lxf3)+ ~ 3. Se5 (Ld5)#
AZW: Georg Hume bevorzugte das Selbstmatt und bei direkten Problemen moderne Vorwürfe. Im obigen Bi-Valve-Problem wird ungewohnterweise eine gefesselte schwarze Figur zum Träger des Ideenspiels.
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Keywords: Brian Stephenson Collection (5760), Bivalve
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1K1R4/6n1/1pk2N2/1p2p3/1P1pq3/1b6/3Q2Bp/n3r2r
Reprints: 57 Valves and Bi-Valves , p. 69, 1930
392 Arbeiter-Zeitung (Wien) 22/01/1933
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-24 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1K1R4/6n1/1pk2N2/1p2p3/1P1pq3/1b6/3Q2Bp/n3r2r
Reprints: 57 Valves and Bi-Valves , p. 69, 1930
392 Arbeiter-Zeitung (Wien) 22/01/1933
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-24 more...
3 - P1020942
Israil D. Katzenellenbogen
Zadachi i etyudy 1930
Alain C. White gewidmet
Valve/Bi Valve-Turnier 1930
Drei- und Vierzüger
(14+7) C+
#3
Israil D. Katzenellenbogen
Zadachi i etyudy 1930
Alain C. White gewidmet
Valve/Bi Valve-Turnier 1930
Drei- und Vierzüger
(14+7) C+
#3
1. Sf7! droht 2. Sd2+ Kxd4 3. Td3#
1. ... Sd8 2. Th8 ... 3. Dh7#
1. ... Sa5 2. Ta1 ... 3. Db1#
1. ... Sd6 2. Sd2+ Kxd4+ 3. c6#
1. ... Sxc5 2. Sh6
1. ... Da5,Da2 2. Sh6
1. ... Sd8 2. Th8 ... 3. Dh7#
1. ... Sa5 2. Ta1 ... 3. Db1#
1. ... Sd6 2. Sd2+ Kxd4+ 3. c6#
1. ... Sxc5 2. Sh6
1. ... Da5,Da2 2. Sh6
Henrik Juel: C+ Popeye 4.61, except for the double mate threat 1... Da5,Da2 2.Sh6 thr. 3.Ld5,Lf5# (2022-07-23)
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Keywords: Brian Stephenson Collection (5792), Bivalve (dreifach), Räumung and Bahnung (TD,zweifach)
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: q6N/1n2b3/1B2B3/2P1P1p1/2PPkp2/1p3N1R/4PPK1/6RQ
Reprints: 125 Valves and Bi-Valves , p. 171, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-23 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: q6N/1n2b3/1B2B3/2P1P1p1/2PPkp2/1p3N1R/4PPK1/6RQ
Reprints: 125 Valves and Bi-Valves , p. 171, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-23 more...
1. Th6! droht 2. Sg6#
1. ... f5 2. Tb6
1. ... e3 2. Lc2
"Zadachi i Etyudy" Valve-Turnier 1930,
Valve- und Bi-valve Probleme in 3 oder 4 Zügen.
1. ... f5 2. Tb6
1. ... e3 2. Lc2
"Zadachi i Etyudy" Valve-Turnier 1930,
Valve- und Bi-valve Probleme in 3 oder 4 Zügen.
Keywords: Brian Stephenson Collection (5793), Valve, Bivalve
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 5N2/b6B/r4pR1/4p3/4pkPK/2N4R/qr6/1b4B1
Reprints: 126 Valves and Bi-Valves , p. 172, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-25 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 5N2/b6B/r4pR1/4p3/4pkPK/2N4R/qr6/1b4B1
Reprints: 126 Valves and Bi-Valves , p. 172, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-25 more...
1. Tc7! droht 2. T6g7 ... 3. Tcf7#
1. ... e3 2. bxc3 ... 3. Lxc5#
1. ... g3 2. Tc6 ... 3. Tcxf6#
BS Problemid: 6092
Authors: Martin, Godefroy
Sources:
Years: 1939
1. ... e3 2. bxc3 ... 3. Lxc5#
1. ... g3 2. Tc6 ... 3. Tcxf6#
BS Problemid: 6092
Authors: Martin, Godefroy
Sources:
Years: 1939
Keywords: Brian Stephenson Collection (6092), Bivalve
Genre: 3#
FEN: 3K1k2/7R/5pR1/2n2p2/3ppPp1/Bpr2b2/1P3b2/8
Input: Brian Stephenson, 2004-08-12
Last update: Nightrider, 2024-02-02 more...
Genre: 3#
FEN: 3K1k2/7R/5pR1/2n2p2/3ppPp1/Bpr2b2/1P3b2/8
Input: Brian Stephenson, 2004-08-12
Last update: Nightrider, 2024-02-02 more...
6 - P1023672
Erich Brunner
502 Allgemeine Zeitung Chemnitz 10/10/1926
4. Preis
Zweizügerturnier 1925-26
B) Gewöhnliche Zweizüger
I. Allgemeine Konkurrenz
(5+9) C+
#2
Erich Brunner
502 Allgemeine Zeitung Chemnitz 10/10/1926
4. Preis
Zweizügerturnier 1925-26
B) Gewöhnliche Zweizüger
I. Allgemeine Konkurrenz
(5+9) C+
#2
1. Dd2! droht 2. Dh2#
1. ... c6,Sb6,Sf6,Sg6,Lf6,Ta2,Ta4 2. Dh6#
1. ... Tb2,c5,Sc5,Se5,Le5,Tb4 2. Dg5#
1. ... c6,Sb6,Sf6,Sg6,Lf6,Ta2,Ta4 2. Dh6#
1. ... Tb2,c5,Sc5,Se5,Le5,Tb4 2. Dg5#
Keywords: Brian Stephenson Collection (8536), Bivalve (sB + sS)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 1qb2n2/2pnN3/r7/1r5k/8/5P2/8/b1B1Q2K
Reprints: 98 Valves and Bi-Valves , p. 110, 1930
2 Erich Brunner - Ein Künstler und Deuter des Schachproblems , p. 16, 1958
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-23 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 1qb2n2/2pnN3/r7/1r5k/8/5P2/8/b1B1Q2K
Reprints: 98 Valves and Bi-Valves , p. 110, 1930
2 Erich Brunner - Ein Künstler und Deuter des Schachproblems , p. 16, 1958
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-23 more...
1. Sgf6! droht 2. Tg8#
1. ... Sh3 2. Thxh7#
1. ... Se4 2. Dxh7#
1. ... Sf7 2. Tgxh7#
1. ... Sh3 2. Thxh7#
1. ... Se4 2. Dxh7#
1. ... Sf7 2. Tgxh7#
Keywords: Brian Stephenson Collection (8578), Bivalve (dreifach)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 4NBNk/r5Rp/4p3/5Qn1/p6R/K4p2/8/1b4rq
Reprints: 96 Valves and Bi-Valves , p. 108, 1930
78 FIDE Album 1914-1944/I , p. 28, 1971
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-11 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 4NBNk/r5Rp/4p3/5Qn1/p6R/K4p2/8/1b4rq
Reprints: 96 Valves and Bi-Valves , p. 108, 1930
78 FIDE Album 1914-1944/I , p. 28, 1971
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-11 more...
8 - P1023848
Gijsbertus Jordan
2 Chess Pie 1927
Britisch Chess Federation
Turnier 1927
Nachlass Max Meyer
Ehrende Erwähnung
(7+11) C+
#2
Gijsbertus Jordan
2 Chess Pie 1927
Britisch Chess Federation
Turnier 1927
Nachlass Max Meyer
Ehrende Erwähnung
(7+11) C+
#2
1. Lc5! droht 2. De7#
1. ... Sb2,Sc3 2. Ld4#
1. ... Sf2 2. Le7#
1. ... Se3 2. Dxa1#
1. ... Sb2,Sc3 2. Ld4#
1. ... Sf2 2. Le7#
1. ... Se3 2. Dxa1#
Keywords: Brian Stephenson Collection (8712), pin-mate, Fesselungsspiel, Valve, Bivalve
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 5N2/1r1p2p1/Rb3kP1/5p2/5P1p/6r1/5Bp1/q2nQ1K1
Reprints: 88 Valves and Bi-Valves , p. 100, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-12 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 5N2/1r1p2p1/Rb3kP1/5p2/5P1p/6r1/5Bp1/q2nQ1K1
Reprints: 88 Valves and Bi-Valves , p. 100, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-12-12 more...
1. Tc5! Sc6 2. Df4#
1. ... Se6 2. De5#
1. ... Sf5 2. Tg4#
1. ... Se2,Sc2 2. Sxf2#
1. ... Sb3 2. Dc6#
1. ... Se6 2. De5#
1. ... Sf5 2. Tg4#
1. ... Se2,Sc2 2. Sxf2#
1. ... Sb3 2. Dc6#
Keywords: Brian Stephenson Collection (8734), Bivalve (sS, doppelt), Unpinning, Line closing
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2b5/5p1B/1K1Q2rN/1p4B1/p1Rnk3/2Pp1pR1/q4b2/7N
Reprints: 97 Valves and Bi-Valves , p. 109, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-24 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2b5/5p1B/1K1Q2rN/1p4B1/p1Rnk3/2Pp1pR1/q4b2/7N
Reprints: 97 Valves and Bi-Valves , p. 109, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-24 more...
10 - P1023923
Simon S. Lewman
Leonid A. Isaev
560 The Chess Amateur 07/1928
1. Preis
C.A. Valve-Turnier 1928
Bestes Springer-Valve Problem
(8+11) C+
#2
Simon S. Lewman
Leonid A. Isaev
560 The Chess Amateur 07/1928
1. Preis
C.A. Valve-Turnier 1928
Bestes Springer-Valve Problem
(8+11) C+
#2
1. Sg5! droht 2. Se6#
1. ... Se3 2. Sf3#
1. ... Sc3 2. Td3#
1. ... Sb4 2. Sb5#
1. ... Se7 2. Lc5#
1. ... Sc7 2. Dc5#
1. ... Sf4 2. De4#
1. ... Se3 2. Sf3#
1. ... Sc3 2. Td3#
1. ... Sb4 2. Sb5#
1. ... Se7 2. Lc5#
1. ... Sc7 2. Dc5#
1. ... Sf4 2. De4#
Keywords: Brian Stephenson Collection (8788), Valve (S/dreifach), Bivalve, Line closing, Theme B2
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2r1Rb2/5NpK/1nQB1pB1/3np2p/3k3r/Nq4R1/8/8
Reprints: 104 Valves and Bi-Valves , p. 117, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2r1Rb2/5NpK/1nQB1pB1/3np2p/3k3r/Nq4R1/8/8
Reprints: 104 Valves and Bi-Valves , p. 117, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
11 - P1023924
Cyril S. Kipping
557 The Chess Amateur 06/1928
1. Preis
C.A. Valve-Turnier 1928
Bestes Bi-Valve Problem
(11+8) C+
#2
Cyril S. Kipping
557 The Chess Amateur 06/1928
1. Preis
C.A. Valve-Turnier 1928
Bestes Bi-Valve Problem
(11+8) C+
#2
1. Tg4! droht 2. f4#
1. ... Sf2 2. d4#
1. ... Sf2 2. d4#
Keywords: Brian Stephenson Collection (8789), Pawn mate (Drohung+Lösung), Bivalve
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/1q6/3pp1Bp/1N2k2N/2P1nR1P/b4P2/1r1P2K1/Q3B3
Reprints: 119 Valves and Bi-Valves , p. 132, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/1q6/3pp1Bp/1N2k2N/2P1nR1P/b4P2/1r1P2K1/Q3B3
Reprints: 119 Valves and Bi-Valves , p. 132, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
12 - P1023927
Gustaaf Josephus Nietvelt
547 The Chess Amateur 06/1928
2. Preis
C.A. Valve-Turnier 1928
Zweitbestes Bi-Valve Problem
(8+8) C+
#2
Gustaaf Josephus Nietvelt
547 The Chess Amateur 06/1928
2. Preis
C.A. Valve-Turnier 1928
Zweitbestes Bi-Valve Problem
(8+8) C+
#2
1. Td8! droht 2. Dd7#
1. ... e5 2. Se6#
1. ... e6 2. Se8#
1. ... e5 2. Se6#
1. ... e6 2. Se8#
13 - P1023928
Gabriel Leon-Martin
The Chess Amateur 1928
3. Originality Prize
C.A. Valve-Turnier 1928
(11+12)
#2
Gabriel Leon-Martin
The Chess Amateur 1928
3. Originality Prize
C.A. Valve-Turnier 1928
(11+12)
#2
1. Tg5! droht 2. h8=D#
1. ... Sf3 2. Td5#
1. ... Sf1 2. Tb3#
1. ... Sb6 2. Sxb5#
1. ... Lb4 2. Sb3#
1. ... Lb6 2. Sxb5#
1. ... Sf3 2. Td5#
1. ... Sf1 2. Tb3#
1. ... Sb6 2. Sxb5#
1. ... Lb4 2. Sb3#
1. ... Lb6 2. Sxb5#
Keywords: Brian Stephenson Collection (8793), Valve (Lös. 1-4), Bivalve (Lös. 5)
Genre: 2#
FEN: 1rn5/p1N1pKRP/3pP3/1rb5/3k1Pp1/p1RP4/3N1P1n/B6q
Reprints: 103 Valves and Bi-Valves , p. 116, 1930
Problemschach [Sidler] , p. 105, 1968
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
Genre: 2#
FEN: 1rn5/p1N1pKRP/3pP3/1rb5/3k1Pp1/p1RP4/3N1P1n/B6q
Reprints: 103 Valves and Bi-Valves , p. 116, 1930
Problemschach [Sidler] , p. 105, 1968
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
14 - P1023929
Comins Mansfield
568 The Chess Amateur 07/1928
3. Preis
C.A. Valve-Turnier 1928
Drittbestes Springer-Valve Problem
(9+9) C+
#2
Comins Mansfield
568 The Chess Amateur 07/1928
3. Preis
C.A. Valve-Turnier 1928
Drittbestes Springer-Valve Problem
(9+9) C+
#2
1. Sd1! droht 2. Sdc3#
1. ... Sd7 2. Tc8#
1. ... Sg4 2. Th3#
1. ... Se8 2. Tc7#
1. ... Sh5 2. Tg3#
1. ... Ke4 2. Txe3#
1. ... Sd7 2. Tc8#
1. ... Sg4 2. Th3#
1. ... Se8 2. Tc7#
1. ... Sh5 2. Tg3#
1. ... Ke4 2. Txe3#
Keywords: Brian Stephenson Collection (8794), Valve, Bivalve, Battery mates (vierfach), Line closing (vierfach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: Q5r1/6qr/p1R1pn2/1P1k1p2/5B2/4pR2/K3NN2/7B
Reprints: 106 Valves and Bi-Valves , p. 119, 1930
Complete Mansfield 1996
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: Q5r1/6qr/p1R1pn2/1P1k1p2/5B2/4pR2/K3NN2/7B
Reprints: 106 Valves and Bi-Valves , p. 119, 1930
Complete Mansfield 1996
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
15 - P1023933
Cyril S. Kipping
579 The Chess Amateur 08/1928
Ehrende Erwähnung
C.A. Valve-Turnier 1928
Kombination Valve/Bi-Valve
(10+7) C+
#2
Cyril S. Kipping
579 The Chess Amateur 08/1928
Ehrende Erwähnung
C.A. Valve-Turnier 1928
Kombination Valve/Bi-Valve
(10+7) C+
#2
1. Sg5! droht 2. g7#
1. ... Sb1,Sd1 2. Lg2#
1. ... Sa2,Sa4 2. Ta8#
1. ... Sb5 2. b8=D#
1. ... Sd5 2. d8=D#
1. ... Se4 2. Th4#
1. ... Se2 2. Lf1#
Brian Stephenson gibt 'Comins Mansfield' als Autor an, bitte prüfen! (db)
1. ... Sb1,Sd1 2. Lg2#
1. ... Sa2,Sa4 2. Ta8#
1. ... Sb5 2. b8=D#
1. ... Sd5 2. d8=D#
1. ... Se4 2. Th4#
1. ... Se2 2. Lf1#
Brian Stephenson gibt 'Comins Mansfield' als Autor an, bitte prüfen! (db)
Mario Richter: Interessant ist der Kommentar in der YACPDB (https://www.yacpdb.org/#92040), letzte Klarheit dürfte aber nur ein Blick ins Original schaffen ... (2022-07-24)
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Keywords: Brian Stephenson Collection (8799), Valve (zwei), Bivalve (vier), Knight's wheel (schwarz), Promotion in the mating move (wD, doppelt), Pawn mate (Drohung)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 7k/1P1PpK1N/6P1/R4P2/1r3R2/1pn4B/3r4/q6Q
Reprints: 124 Valves and Bi-Valves , p. 137, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-23 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 7k/1P1PpK1N/6P1/R4P2/1r3R2/1pn4B/3r4/q6Q
Reprints: 124 Valves and Bi-Valves , p. 137, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-23 more...
16 - P1023940
Jacob E. Funk
567 The Chess Amateur 07/1928
Preis
C.A. Valve Turnier 1928
Kombination Valve/Bi-Valve
(8+10) C+
#2
Jacob E. Funk
567 The Chess Amateur 07/1928
Preis
C.A. Valve Turnier 1928
Kombination Valve/Bi-Valve
(8+10) C+
#2
1. Tb3! droht 2. Lb4#
1. ... Sd6 2. Se6#
1. ... Sc7 2. Lxb6#
1. ... Sd4 2. Dd5#
1. ... Sc3 2. Dxc4#
1. ... Sd6 2. Se6#
1. ... Sc7 2. Lxb6#
1. ... Sd4 2. Dd5#
1. ... Sc3 2. Dxc4#
Keywords: Brian Stephenson Collection (8806), Valve, Bivalve, Line closure (vierfach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2Nb2K1/n7/1q3p2/Bnk5/P1p1QN2/p3R3/2rrB3/8
Reprints: 123 Valves and Bi-Valves , p. 136, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2Nb2K1/n7/1q3p2/Bnk5/P1p1QN2/p3R3/2rrB3/8
Reprints: 123 Valves and Bi-Valves , p. 136, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-22 more...
1. Sd4! droht 2. Dc8#
1. ... Lh7 2. Sh6#
1. ... d5 2. Se5#
BS Problemid: 8934
Authors: Lebedev, Alexei N
Sources:
Years: 1929
1. ... Lh7 2. Sh6#
1. ... d5 2. Se5#
BS Problemid: 8934
Authors: Lebedev, Alexei N
Sources:
Years: 1929
Keywords: Brian Stephenson Collection (8934), Valve, Bivalve
Genre: 2#
FEN: Q5br/p1p2NR1/r2pNBB1/1p6/1n3Pk1/pK3R2/8/6n1
Reprints: 86 Valves and Bi-Valves , p. 98, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-10-17 more...
Genre: 2#
FEN: Q5br/p1p2NR1/r2pNBB1/1p6/1n3Pk1/pK3R2/8/6n1
Reprints: 86 Valves and Bi-Valves , p. 98, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-10-17 more...
1. d4! droht 2. Sd5#
1. ... exd3ep 2. Lc4#
1. ... e3 2. Lc2#
1. ... Se3 2. Ld1#
1. ... exd3ep 2. Lc4#
1. ... e3 2. Lc2#
1. ... Se3 2. Ld1#
Keywords: Brian Stephenson Collection (9006), Bivalve (sB doppelt, sS), En passant, Unpinning (des wL, dreifach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: n1R5/p3Np1b/pkP5/p5R1/P3p2r/KB3q2/3P4/1Q3n1r
Reprints: 100 Valves and Bi-Valves , p. 112, 1930
575 FIDE Album 1914-1944/I , p. 111, 1971
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-23 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: n1R5/p3Np1b/pkP5/p5R1/P3p2r/KB3q2/3P4/1Q3n1r
Reprints: 100 Valves and Bi-Valves , p. 112, 1930
575 FIDE Album 1914-1944/I , p. 111, 1971
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-23 more...
1. Dd7! droht 2. Dc6#
1. ... Sh4 2. h8=D,L#
1. ... Sf4 2. Df5#
1. ... Se3 2. Lxe5#
1. ... Sh4 2. h8=D,L#
1. ... Sf4 2. Df5#
1. ... Se3 2. Lxe5#
Keywords: Brian Stephenson Collection (10309), Bivalve (dreifach), Promotion in the mating move (D,L)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: n1Q1K1R1/2p1PN1P/5kB1/b3p3/1p4p1/2Bp2pq/6n1/4rr1b
Reprints: 8 Problemschach-Jahrbuch 1993 D , p. 12, 1993
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-05-13 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: n1Q1K1R1/2p1PN1P/5kB1/b3p3/1p4p1/2Bp2pq/6n1/4rr1b
Reprints: 8 Problemschach-Jahrbuch 1993 D , p. 12, 1993
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-05-13 more...
1. dxc3? Sa5! 1. d4? Sc5! 1. dxe3? Sd6!
1. d3! droht 2. Lf3#
1. ... Sa5 2. bxc3# 1. ... Sc5 2. Sd4# 1. ... Sd6 2. Sxf4#
1. d3! droht 2. Lf3#
1. ... Sa5 2. bxc3# 1. ... Sc5 2. Sd4# 1. ... Sd6 2. Sxf4#
Keywords: Brian Stephenson Collection (10330), Albino, Bivalve (dreifach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: bq1n4/rn1p4/1b6/1N6/1pp1BpK1/1Pp1p3/QP1PkpN1/3R1R2
Reprints: 28 Schach mit Partner , p. 65, 1999
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-01-07 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: bq1n4/rn1p4/1b6/1N6/1pp1BpK1/1Pp1p3/QP1PkpN1/3R1R2
Reprints: 28 Schach mit Partner , p. 65, 1999
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-01-07 more...
21 - P1027424
Frederick E. Gamage
Football-Field 1909
Ehrende Erwähnung
Informalturnier 1909
(9+11) C+
#2
Frederick E. Gamage
Football-Field 1909
Ehrende Erwähnung
Informalturnier 1909
(9+11) C+
#2
1. Tf3! Tc6+ 2. Tef4#
1. ... Td5+ 2. Te5#
1. ... Tb6+,Td4+ 2. Lf4#
1. ... Td5+ 2. Te5#
1. ... Tb6+,Td4+ 2. Lf4#
Keywords: Brian Stephenson Collection (12308), Bivalve (sT), Provoked check, Cross check (dreifach)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: bqQ5/b2p3B/p2rp3/8/2P1RR2/2NkB3/2p1N2K/rn6
Reprints: Simple Two-move Themes 1924
93 Valves and Bi-Valves , p. 105, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-24 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: bqQ5/b2p3B/p2rp3/8/2P1RR2/2NkB3/2p1N2K/rn6
Reprints: Simple Two-move Themes 1924
93 Valves and Bi-Valves , p. 105, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-24 more...
1. Lg2! droht 2. f4+ Kxf6 3. Lh4#
1. ... Kxf6 2. Lh4+ Ke5 3. f4#
1. ... d5 2. Lh4+ Kxh4 3. Sf3#
1. ... Lf3 2. Lh4+ Kxh4 3. Sxf3#
1. ... Kxf6 2. Lh4+ Ke5 3. f4#
1. ... d5 2. Lh4+ Kxh4 3. Sf3#
1. ... Lf3 2. Lh4+ Kxh4 3. Sxf3#
Keywords: Brian Stephenson Collection (15871), Bivalve, Pawn mate, Drag-in sacrifice
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: b6K/2b2p1P/3p1N1p/6kP/3N4/4PBB1/5P2/8
Reprints: 72 Valves and Bi-Valves , p. 84, 1930
114 Dom Rodzinny (Torun) 08/05/1932
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-14 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: b6K/2b2p1P/3p1N1p/6kP/3N4/4PBB1/5P2/8
Reprints: 72 Valves and Bi-Valves , p. 84, 1930
114 Dom Rodzinny (Torun) 08/05/1932
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-14 more...
1. Kd2! droht 2. Kc1
1. ... g6 2. Kc2
1. ... c3+ 2. bxc3
1. ... cxb3 2. Lxb3+
1. ... g6 2. Kc2
1. ... c3+ 2. bxc3
1. ... cxb3 2. Lxb3+
Keywords: Brian Stephenson Collection (16231), Bivalve
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: R4bb1/1p2p1p1/1Pp5/4B3/1pp5/1P6/BP6/k3K3
Reprints: 75 Valves and Bi-Valves , p. 87, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-16 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.89
FEN: R4bb1/1p2p1p1/1Pp5/4B3/1pp5/1P6/BP6/k3K3
Reprints: 75 Valves and Bi-Valves , p. 87, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-16 more...
1. Lc8! Lc4 2. Sg6 Td5 3. Tf4#
Die Läufer Bivalve 1. ... Lc4 verhindert die s. Verteidigung 2. ... Txc5
Cook: 1. Sg6 Txc5 2. Tf4+ Kd5 3. Td4#
Die Läufer Bivalve 1. ... Lc4 verhindert die s. Verteidigung 2. ... Txc5
Cook: 1. Sg6 Txc5 2. Tf4+ Kd5 3. Td4#
Keywords: Brian Stephenson Collection (16631), Bivalve
Genre: 3#
Computer test: SCHRECKE: 1 NL
FEN: 1K6/1p1B3n/1p6/1pP2R2/4k2N/3bPp2/1N3P2/2rr4
Reprints: 59 Valves and Bi-Valves 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-17 more...
Genre: 3#
Computer test: SCHRECKE: 1 NL
FEN: 1K6/1p1B3n/1p6/1pP2R2/4k2N/3bPp2/1N3P2/2rr4
Reprints: 59 Valves and Bi-Valves 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-17 more...
1. Kd1! droht 2. Lxd5+
1. ... Sd2+ 2. Sc1+
1. ... Ld2+ 2. Se1+
1. ... Sd2+ 2. Sc1+
1. ... Ld2+ 2. Se1+
Henrik Juel: C+ Popeye 4.61, except for mate duals in the threat after thr. 2.Lxd5+ Lxd5
1.Kd1 e2+ 2.Dxe2+ (2021-10-17)
comment
1.Kd1 e2+ 2.Dxe2+ (2021-10-17)
comment
Keywords: Brian Stephenson Collection (16746), Bivalve
Genre: 3#
FEN: 8/8/1BB1p3/p2qP2R/1Nb1k1n1/p1pNp1P1/2Q1KpP1/rn2br2
Reprints: 81 Valves and Bi-Valves , p. 93, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-10-17 more...
Genre: 3#
FEN: 8/8/1BB1p3/p2qP2R/1Nb1k1n1/p1pNp1P1/2Q1KpP1/rn2br2
Reprints: 81 Valves and Bi-Valves , p. 93, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-10-17 more...
1. c6! droht 2. b4+
1. ... Se5 2. Sc7
1. ... Ld6 2. Sd8
1. ... Se5 2. Sc7
1. ... Ld6 2. Sd8
Keywords: Brian Stephenson Collection (16844), Bivalve
Genre: 3#
FEN: 2K3b1/3N1p2/1R2Nrqp/k1P2p2/6nr/1P2p3/1P3p1b/8
Reprints: 61 Valves and Bi-Valves , p. 73, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-10-23 more...
Genre: 3#
FEN: 2K3b1/3N1p2/1R2Nrqp/k1P2p2/6nr/1P2p3/1P3p1b/8
Reprints: 61 Valves and Bi-Valves , p. 73, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-10-23 more...
27 - P1032188
Harry D. Rosenkilde
5009 Tijdschrift van den NSB 05/1928
3. Preis
Informalturnier
(6+9) C+
#3
Harry D. Rosenkilde
5009 Tijdschrift van den NSB 05/1928
3. Preis
Informalturnier
(6+9) C+
#3
1. Sb6! droht 2. Sd7#
1. ... f5 2. De3+ Kf6 3. Txe6#
1. ... f6 2. Dg3+ Kf5 3. Lxe6#
1. ... f5 2. De3+ Kf6 3. Txe6#
1. ... f6 2. Dg3+ Kf5 3. Lxe6#
Keywords: Brian Stephenson Collection (17094), Bivalve (sB doppelt)
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 2N2KB1/5p1r/2R1p2r/1pp1k3/8/1nN4b/5Q2/8
Reprints: 67 Valves and Bi-Valves , p. 79, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-24 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 2N2KB1/5p1r/2R1p2r/1pp1k3/8/1nN4b/5Q2/8
Reprints: 67 Valves and Bi-Valves , p. 79, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-24 more...
1. Ta4! droht 2. Tca3
1. ... g3 2. Le4
1. ... f4 2. Lf5
1. ... g3 2. Le4
1. ... f4 2. Lf5
Keywords: Brian Stephenson Collection (17140), Bivalve
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/3Kp3/7p/5p1r/1Pp3pr/R1R2p2/b1B4b/k2N4
Reprints: Valves and Bi-Valves , p. 80, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-21 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/3Kp3/7p/5p1r/1Pp3pr/R1R2p2/b1B4b/k2N4
Reprints: Valves and Bi-Valves , p. 80, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-21 more...
29 - P1032240
Nenad Petrovic
Sahovski glasnik 06/1930
4./5. Preis geteilt
Ursic Gedenkturnier 1929
Jugoslavian Chess Federation
(13+10) C+
#3
Nenad Petrovic
Sahovski glasnik 06/1930
4./5. Preis geteilt
Ursic Gedenkturnier 1929
Jugoslavian Chess Federation
(13+10) C+
#3
1. Sf4! droht 2. Sd3
1. ... Lg4 2. Sd5
1. ... Lf3 2. Se6
1. ... Le2 2. Sxe2
1. ... Lh5 2. Sxh5
1. ... Lg4 2. Sd5
1. ... Lf3 2. Se6
1. ... Le2 2. Sxe2
1. ... Lh5 2. Sxh5
Keywords: Brian Stephenson Collection (17146), Bivalve, Goethart-Thema, black self-obstruction
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/nQ2R3/2q3PB/2p1n3/2P1k2N/p1P1P2P/r1rR2N1/bB1b2K1
Reprints: 60 Valves and Bi-Valves , p. 72, 1930
813 FIDE Album 1914-1944/II , p. 150, 1972
990 Beispiele zur Ideengeschichte des Schachproblems , p. 204, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-17 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/nQ2R3/2q3PB/2p1n3/2P1k2N/p1P1P2P/r1rR2N1/bB1b2K1
Reprints: 60 Valves and Bi-Valves , p. 72, 1930
813 FIDE Album 1914-1944/II , p. 150, 1972
990 Beispiele zur Ideengeschichte des Schachproblems , p. 204, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-17 more...
1. e4! droht 2. e5 Dxe5 3. Sc7+ 2. ... Lxe5 3. Sxc3+
1. ... d6 2. Tf7 T7xf7 3. Lf1+ 2. ... T8xf7 3. Sc7+
1. ... Tf2 2. Lxf2 Sxf2 3. Lf1+
1. ... Dd4 2. Lxd4
1. ... Tf3 2. Lxf3
1. ... d6 2. Tf7 T7xf7 3. Lf1+ 2. ... T8xf7 3. Sc7+
1. ... Tf2 2. Lxf2 Sxf2 3. Lf1+
1. ... Dd4 2. Lxd4
1. ... Tf3 2. Lxf3
Beispielaufgabe für ein Internationales Valve/Bi-valve-TT von 'Zadachi i etyudy'
Henrik Juel: late duals 1... Tf2 2.Lxf2 Dd4 3.Lf1+,Lxd4, 1... Tf3 2.Lxf3 Dd4 3.Le2+,Lxd4, and 1... Dd4 2.Lxd4 Tf3 3.Lf1+,Lxf3 (2022-05-13)
comment
Henrik Juel: late duals 1... Tf2 2.Lxf2 Dd4 3.Lf1+,Lxd4, 1... Tf3 2.Lxf3 Dd4 3.Le2+,Lxd4, and 1... Dd4 2.Lxd4 Tf3 3.Lf1+,Lxf3 (2022-05-13)
comment
Keywords: Brian Stephenson Collection (22758), Plachutta, Bivalve
Genre: n#
FEN: 1n3r1q/R2p3r/N7/pkPP4/N6p/1Kp5/2P1P1Bb/6Bn
Reprints: 66 Valves and Bi-Valves , p. 78, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Mario Richter, 2022-05-14 more...
Genre: n#
FEN: 1n3r1q/R2p3r/N7/pkPP4/N6p/1Kp5/2P1P1Bb/6Bn
Reprints: 66 Valves and Bi-Valves , p. 78, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Mario Richter, 2022-05-14 more...
1. Sd1! droht 2. Sb2#
1. ... Sc6 2. Dc5#
1. ... Sd7 2. Dxg8#
1. ... Sf7 2. Ld5#
1. ... Sg4 2. e5#
1. ... Sf3 2. Se3#
1. ... Sd3 2. cxb3#
1. ... Sc6 2. Dc5#
1. ... Sd7 2. Dxg8#
1. ... Sf7 2. Ld5#
1. ... Sg4 2. e5#
1. ... Sf3 2. Se3#
1. ... Sd3 2. cxb3#
Keywords: Brian Stephenson Collection (24596), Bivalve (sechsfach), discovered checkmate, Pawn mate, Line closing, Blocknutzung
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: B4Qbb/2q5/6p1/pN2n3/K1k1PR1r/Bp5r/2P2N2/8
Reprints: 884 Beispiele zur Ideengeschichte des Schachproblems , p. 185, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-03-31 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: B4Qbb/2q5/6p1/pN2n3/K1k1PR1r/Bp5r/2P2N2/8
Reprints: 884 Beispiele zur Ideengeschichte des Schachproblems , p. 185, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-03-31 more...
1. Sdf6! Lxf6 2. Dg6 Txg5 3. Sf8 e5 4. Db1#
2. ... Lg7 3. Dxg7
1. ... e5 2. Sf8 Le6+ 3. Sxe6
Als Quelle wird 'German Chess Assn. Tourney 1925' angegeben, wer kennt sich aus?
'Dt. Schachhefte' habe ich nur auf Verdacht eingesetzt! (db)
2. ... Lg7 3. Dxg7
1. ... e5 2. Sf8 Le6+ 3. Sxe6
Als Quelle wird 'German Chess Assn. Tourney 1925' angegeben, wer kennt sich aus?
'Dt. Schachhefte' habe ich nur auf Verdacht eingesetzt! (db)
Keywords: Brian Stephenson Collection (28967), Bivalve
Genre: n#
FEN: rk6/p2p1K1N/B1pPp3/3N2P1/p7/p2Qnp1b/1b4r1/5nq1
Reprints: 69 Valves and Bi-Valves , p. 81, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-18 more...
Genre: n#
FEN: rk6/p2p1K1N/B1pPp3/3N2P1/p7/p2Qnp1b/1b4r1/5nq1
Reprints: 69 Valves and Bi-Valves , p. 81, 1930
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-18 more...
1. Tcc3? Th7! 1. Tbc3? Tg8!
1. Kb2! droht 2. Td2+ Kc4 3. Tc3#
1. ... Tg8 2. Txc7 ... 3. Sb5#
1. ... Th7 2. Te3 ... 3. Se2#
Breuer: Zweimal Bivalve, vermiedene weiße Holzhausen-Verstellungen.
1. Kb2! droht 2. Td2+ Kc4 3. Tc3#
1. ... Tg8 2. Txc7 ... 3. Sb5#
1. ... Th7 2. Te3 ... 3. Se2#
Breuer: Zweimal Bivalve, vermiedene weiße Holzhausen-Verstellungen.
Keywords: Brian Stephenson Collection (33339), Bivalve (zweifach)
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 7q/Npn1ppr1/3p2p1/3P4/1P1kPB1n/PR4Np/2R3P1/K7
Reprints: 1689 Beispiele zur Ideengeschichte des Schachproblems , p. 341, 1982
The Art of Israeli Chess Composition 1983
As in all arts 1996
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-03-01 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 7q/Npn1ppr1/3p2p1/3P4/1P1kPB1n/PR4Np/2R3P1/K7
Reprints: 1689 Beispiele zur Ideengeschichte des Schachproblems , p. 341, 1982
The Art of Israeli Chess Composition 1983
As in all arts 1996
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-03-01 more...
1. Ka4? Lc6+! 1. Dd2+? Kb3! 1. Tg2+? Lxg2!
1. Kb4! d5+ 2. Ka4 Lc2+ 3. Dxc2# 2. ... Lb1 3. Dxb1# 2. ... Lg7 3. Db3#
1. Kb4! d5+ 2. Ka4 Lc2+ 3. Dxc2# 2. ... Lb1 3. Dxb1# 2. ... Lg7 3. Db3#
Keywords: Miniature Collection (0040099), Miniature, Beugung, Preplan, Bivalve
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 5b2/8/3p4/K7/4b3/8/k7/3Q2R1
Reprints: 170 Schachbrett - 1000 Schachaufgaben der LZ , p. 70, 1989
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2022-11-21 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 5b2/8/3p4/K7/4b3/8/k7/3Q2R1
Reprints: 170 Schachbrett - 1000 Schachaufgaben der LZ , p. 70, 1989
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2022-11-21 more...
1. Da4! droht 2. Sb7#
1. ... d5 2. Se6#
1. ... e6 2. Sxd6#
1. ... e5 2. Sd7#
1. ... Te6 2. Dd7#
1. ... d5 2. Se6#
1. ... e6 2. Sxd6#
1. ... e5 2. Sd7#
1. ... Te6 2. Dd7#
Keywords: Bivalve (vierfach)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: K1k1N3/4pr2/1P1p2r1/p1N2qB1/3Q4/3R3B/8/2R5
Reprints: 949 Beispiele zur Ideengeschichte des Schachproblems , p. 197, 1982
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2023-02-13 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: K1k1N3/4pr2/1P1p2r1/p1N2qB1/3Q4/3R3B/8/2R5
Reprints: 949 Beispiele zur Ideengeschichte des Schachproblems , p. 197, 1982
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2023-02-13 more...
* 1. ... Lf7 2. Tf6#
1. Td3! droht 2. Sd8#
1. ... Sa6 2. La2#
1. ... Lf7 2. Df5#
1. ... g4 2. Dc4#
1. ... Ta2+ 2. Lxa2#
1. Td3! droht 2. Sd8#
1. ... Sa6 2. La2#
1. ... Lf7 2. Df5#
1. ... g4 2. Dc4#
1. ... Ta2+ 2. Lxa2#
Keywords: Bivalve, Changed mates
Genre: 2#
Computer test: SCHRECKE: popeye 4.85
FEN: rn2br2/1N1p2B1/1ppPk1nN/4p1p1/4Q2q/5R2/1K2p3/1B6
Input: Felber, Volker, 2012-03-14
Last update: Dieter Berlin, 2023-05-28 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.85
FEN: rn2br2/1N1p2B1/1ppPk1nN/4p1p1/4Q2q/5R2/1K2p3/1B6
Input: Felber, Volker, 2012-03-14
Last update: Dieter Berlin, 2023-05-28 more...
1. Sxc6! droht 2. Sxe7,Txe5#
1. ... g4 2. Sd8 g5 3. Sc6 e4 4. Td1#
1. Sxc6! (droht 2. Sxe7,Txe5#)
1. ... g4 (1. Bi-Valve) 2. Sd8 (droht 3. Dd3,De6#) g5 (2. Bi-Valve)3. Sc6 (droht 4. Txe5,Sxe7#) e4 4. Td1#
1. ... g4 2. Sd8 g5 3. Sc6 e4 4. Td1#
1. Sxc6! (droht 2. Sxe7,Txe5#)
1. ... g4 (1. Bi-Valve) 2. Sd8 (droht 3. Dd3,De6#) g5 (2. Bi-Valve)3. Sc6 (droht 4. Txe5,Sxe7#) e4 4. Td1#
Keywords: Bivalve, Finnish Novotny
Genre: n#
FEN: nK6/4p2b/Q1p1p1pr/p1Pkp1pr/3N3b/1N3p1q/n4P2/4R3
Input: Felber, Volker, 2012-04-06
Last update: Felber, Volker, 2021-11-27 more...
Genre: n#
FEN: nK6/4p2b/Q1p1p1pr/p1Pkp1pr/3N3b/1N3p1q/n4P2/4R3
Input: Felber, Volker, 2012-04-06
Last update: Felber, Volker, 2021-11-27 more...
1. Td2! droht 2. La6#
1. ... Le5 2. Ld5#
1. ... Lf4 2. Df1#
1. ... Lg3 2. Tc3#
1. ... Le5 2. Ld5#
1. ... Lf4 2. Df1#
1. ... Lg3 2. Tc3#
Keywords: Bivalve
Genre: 2#
Computer test: C+ Popeye 4.61
FEN: 8/1Bp1p3/3br3/2pR1r2/K1k5/p3R2q/6Pp/3N3Q
Input: Felber, Volker, 2012-10-29
Last update: A.Buchanan, 2021-05-03 more...
Genre: 2#
Computer test: C+ Popeye 4.61
FEN: 8/1Bp1p3/3br3/2pR1r2/K1k5/p3R2q/6Pp/3N3Q
Input: Felber, Volker, 2012-10-29
Last update: A.Buchanan, 2021-05-03 more...
1. Lh1! droht 2. Td1 ... 3. Se1#
1. ... c6 2. Sg5+ Kxd4 3. Se6#
1. ... c5 2. Sh4+ Kxd4 3. Sxf5#
1. ... c6 2. Sg5+ Kxd4 3. Se6#
1. ... c5 2. Sh4+ Kxd4 3. Sxf5#
Keywords: Bivalve, Siers-Rössel, Line closing
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1b6/2p5/1r3p2/1r3p2/pPPPkP2/4pNKp/4P1B1/2R5
Input: Felber, Volker, 2013-04-24
Last update: Dieter Berlin, 2022-11-07 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1b6/2p5/1r3p2/1r3p2/pPPPkP2/4pNKp/4P1B1/2R5
Input: Felber, Volker, 2013-04-24
Last update: Dieter Berlin, 2022-11-07 more...
40 - P1268523
Gunter Jordan
12680v Springaren 127 03/2013
6. ehrende Erwähnung
PR Kjell Widlert
(10+10)
s#3
Gunter Jordan
12680v Springaren 127 03/2013
6. ehrende Erwähnung
PR Kjell Widlert
(10+10)
s#3
1. De8! droht 2. Taxc3+ Lxc3 3. Sxa5+ Txa5#
1. ... g5 2. Sb6+ (2.Se5#?) Dxb6 3. Db5+ Dxb5#
1. ... Ld5 2. Se5+ (2.Sb6#?) Txe5 3. Dc6+ Lxc6#
Dies ist die optimierte Fassung. Der wTa3 stand zuvor auf d3 und auf a3 stand ein zusäztlicher wB. Die Verbesserung erschien in Springaren 168, Seite 177.
1. ... g5 2. Sb6+ (2.Se5#?) Dxb6 3. Db5+ Dxb5#
1. ... Ld5 2. Se5+ (2.Sb6#?) Txe5 3. Dc6+ Lxc6#
Dies ist die optimierte Fassung. Der wTa3 stand zuvor auf d3 und auf a3 stand ein zusäztlicher wB. Die Verbesserung erschien in Springaren 168, Seite 177.
41 - P1360528
Petre Stojoski
The Macedonian Problemist 57a 09-12/2018
Zoran Gavrilovski 50 JT Abt. H#>2
1. ehrende Erwähnung
PR Hans Gruber
(2+13) C+
h#5
Petre Stojoski
The Macedonian Problemist 57a 09-12/2018
Zoran Gavrilovski 50 JT Abt. H#>2
1. ehrende Erwähnung
PR Hans Gruber
(2+13) C+
h#5
1. Se5-c4+ Kb2-c1 2. Kd6-e7 La1xd4 3. Lh2-c7 Ld4-g7 4. Sc4-e5+ Kc1-b2 5. Ke7-d6 Lg7-f8#
Stefan Felber: Illegale Bauernstellung! (2019-02-02)
Viktoras Paliulionis: Possible correction: bBd7.
Also, the BQ can be replaced with a BR. (2020-10-08)
comment
Viktoras Paliulionis: Possible correction: bBd7.
Also, the BQ can be replaced with a BR. (2020-10-08)
comment
Keywords: Illegal position, Checking key, Minimal, Model mate, Klasinc theme (K-L, s-L, s-l, k-l), Switchback (Kks), Selfblock, Line closing, Line closing, Bivalve
Genre: h#
Computer test: Popeye 4.67
FEN: 8/3p4/2qkp3/3pn3/pp1p4/1p1r4/pK5b/B7
Input: Marcin Banaszek, 2019-02-02
Last update: Gunter Jordan, 2019-05-16 more...
Genre: h#
Computer test: Popeye 4.67
FEN: 8/3p4/2qkp3/3pn3/pp1p4/1p1r4/pK5b/B7
Input: Marcin Banaszek, 2019-02-02
Last update: Gunter Jordan, 2019-05-16 more...
* 1. ... bxc3 2. Dxa2#
1. Sxa4! droht 2. Dd4#
1. ... Sc5 2. Sb6#
1. ... Sc3 2. Sb2#
1. ... Sf6 2. Txc6#
1. ... Sg5 2. Sd2#
1. Sxa4 Le3 2. Sxe3#
1. ... Dg1 2. Le2#
1. Sxa4! droht 2. Dd4#
1. ... Sc5 2. Sb6#
1. ... Sc3 2. Sb2#
1. ... Sf6 2. Txc6#
1. ... Sg5 2. Sd2#
1. Sxa4 Le3 2. Sxe3#
1. ... Dg1 2. Le2#
Dieter Berlin: Über den Dual kann man lt. Lösungsbesprechung Febr.1981 geteilter Meinung sein: Ich zähle den Zug
1. ... Sd6 zu S~, und Dr. Dragone wies darauf hin, dass S~ so behandelt wird, als sei der S vom
Brett verschwunden (die Briten sagen dazu "random move"), und dann geht nur Ld:. Diese Frage ist bis heute nicht geklärt, denke ich. (2021-02-10)
more ...
comment
1. ... Sd6 zu S~, und Dr. Dragone wies darauf hin, dass S~ so behandelt wird, als sei der S vom
Brett verschwunden (die Briten sagen dazu "random move"), und dann geht nur Ld:. Diese Frage ist bis heute nicht geklärt, denke ich. (2021-02-10)
more ...
comment
Keywords: Black correction, Theme B2 (zweimal), Bivalve (zweimal)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 4r3/B1R3p1/2b3rb/K2p3R/ppk1n1q1/2N2B2/p1P5/Q4N2
Input: Dieter Berlin, 2021-02-10
Last update: Dieter Berlin, 2024-01-23 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 4r3/B1R3p1/2b3rb/K2p3R/ppk1n1q1/2N2B2/p1P5/Q4N2
Input: Dieter Berlin, 2021-02-10
Last update: Dieter Berlin, 2024-01-23 more...
1. Da3-a6! droht 2. Dxc6#
1. ... Te4-f4 2. Da6-a5 droht 3. Dxc7#
2. ... Tf4-e4 3. Sg2-f4 Lh2xf4 4. Da5-a6 Te4-e5 5. Lb1-e4! Lf3xe4 6. Da6-a5 Te5-d5 7. Lf6-e5! Dxe5,Lxe5 8. Da5-a6 Dd6,Td6 9. Ta8-d8+! Kd7xd8 10. Da6-a8+ Kd8-d7 11. Da8-c8#
1. ... Te4-f4 2. Da6-a5 droht 3. Dxc7#
2. ... Tf4-e4 3. Sg2-f4 Lh2xf4 4. Da5-a6 Te4-e5 5. Lb1-e4! Lf3xe4 6. Da6-a5 Te5-d5 7. Lf6-e5! Dxe5,Lxe5 8. Da5-a6 Dd6,Td6 9. Ta8-d8+! Kd7xd8 10. Da6-a8+ Kd8-d7 11. Da8-c8#
1. Kg2? Lc6+!
1. Kh2? Lxd6+!
1. Dh7 droht 2. Df5+ Kh5 3. Dh3#
1. ... Tb5 2. Kg2 ... 3. Dh3#
1. ... Tb4 2. Kh2 ... 3. Dh3#
1. Kh2? Lxd6+!
1. Dh7 droht 2. Df5+ Kh5 3. Dh3#
1. ... Tb5 2. Kg2 ... 3. Dh3#
1. ... Tb4 2. Kh2 ... 3. Dh3#
Keywords: Valve, Bivalve
Genre: 3#
Computer test: Henrik Juel: C+ Popeye 4.61 (2023-05-07)
FEN: 7Q/3nN3/3P4/6p1/b5k1/b3P3/1rp1P3/4B1K1
Input: Stefan Höning, 2021-10-04
Last update: Felber, Volker, 2023-07-01 more...
Genre: 3#
Computer test: Henrik Juel: C+ Popeye 4.61 (2023-05-07)
FEN: 7Q/3nN3/3P4/6p1/b5k1/b3P3/1rp1P3/4B1K1
Input: Stefan Höning, 2021-10-04
Last update: Felber, Volker, 2023-07-01 more...
1. Sf5? gxf5! 1. e5? fxe5! 1. Ke8? Da4+!
1. Kxf7! droht 2. Sb7+ ... 3. Le6#
1. ... Tc3 2. Sf5+
1. ... Td3 2. e5+
1. ... Ta3 2. Ke8
1. Kxf7! droht 2. Sb7+ ... 3. Le6#
1. ... Tc3 2. Sf5+
1. ... Td3 2. e5+
1. ... Ta3 2. Ke8
Henrik Juel: double threat, also 2.Le6
duals 1.Kxf7 De2 2.Ke8,Sb7+, 1... Tc2 2.e5,Sb7+ (2022-03-06)
comment
duals 1.Kxf7 De2 2.Ke8,Sb7+, 1... Tc2 2.e5,Sb7+ (2022-03-06)
comment
Keywords: half-pin, Liniensperrung, Line opening, Valve, Bivalve
Genre: 3#
FEN: 2R2K2/5pp1/p2k1ppR/2N5/1nBNPP2/1r2p3/q5r1/bb6
Reprints: 1870 Die Schwalbe 13, p. 187, 01/1969
1683 Beispiele zur Ideengeschichte des Schachproblems , p. 340, 1982
Input: Dieter Berlin, 2022-03-06
Last update: Dieter Berlin, 2023-04-28 more...
Genre: 3#
FEN: 2R2K2/5pp1/p2k1ppR/2N5/1nBNPP2/1r2p3/q5r1/bb6
Reprints: 1870 Die Schwalbe 13, p. 187, 01/1969
1683 Beispiele zur Ideengeschichte des Schachproblems , p. 340, 1982
Input: Dieter Berlin, 2022-03-06
Last update: Dieter Berlin, 2023-04-28 more...
46 - P1400088
Geoffrey Arthur Mott-Smith
To Alain White 1945
Alain C. White
zum 65. Geburtstag
(8+11) C+
#2
Geoffrey Arthur Mott-Smith
To Alain White 1945
Alain C. White
zum 65. Geburtstag
(8+11) C+
#2
1. Df2! droht 2. Df7#
1. ... Se3,S~? 2. Dxb2#
1. ... Sd4! 2. Le5#
1. ... cxd6 2. Dxa7#
1. ... c5! 2. Tg5#
1. ... Df6 2. Dxf6#
1. ... De5+ 2. Lxe5#
1. ... Se3,S~? 2. Dxb2#
1. ... Sd4! 2. Le5#
1. ... cxd6 2. Dxa7#
1. ... c5! 2. Tg5#
1. ... Df6 2. Dxf6#
1. ... De5+ 2. Lxe5#
1. Ld3! droht 2. De7+ Kxd5 3. Dxd6#
1. ... Tf3 2. Sd8! 2. Sa5? Txd3! 2. Se7? Txg5!
1. ... Te4 2. Sa5! 2. Sd8? Sf4! 2. Se7? Txg5!
1. ... Sc6 2. Sb6! 2. Sd8? Sxd8! 2. Sa5? Sxa5!
Cook: 1. De7+ Kxd5 2. Dxd6+ Kc4 3. Dc5#
1. ... Tf3 2. Sd8! 2. Sa5? Txd3! 2. Se7? Txg5!
1. ... Te4 2. Sa5! 2. Sd8? Sf4! 2. Se7? Txg5!
1. ... Sc6 2. Sb6! 2. Sd8? Sxd8! 2. Sa5? Sxa5!
Cook: 1. De7+ Kxd5 2. Dxd6+ Kc4 3. Dc5#
Gerald Ettl: sBb3 nach b4 und +sBa4, jedoch 1.-Sc6 2.Sb6 und Dd7 was im Original auch schon ging konnte ich nicht verbessern. (2023-02-25)
Gerald Ettl: Verbesserung wie oben und noch +sBa7.
Dann geht auf 1.-Sc6 2.Dd7 als einziger Zug und die Aufgabe ist vollkommen i.O. (2023-02-26)
more ...
comment
Gerald Ettl: Verbesserung wie oben und noch +sBa7.
Dann geht auf 1.-Sc6 2.Dd7 als einziger Zug und die Aufgabe ist vollkommen i.O. (2023-02-26)
more ...
comment
Keywords: Dual avoidance, Bivalve
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: Kn6/1N3Qp1/3p4/3NkpBn/3p1rr1/1p6/5p1q/1B5b
Reprints: 1785 Beispiele zur Ideengeschichte des Schachproblems , p. 362, 1982
Input: Dieter Berlin, 2023-02-24
Last update: Dieter Berlin, 2023-02-25 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: Kn6/1N3Qp1/3p4/3NkpBn/3p1rr1/1p6/5p1q/1B5b
Reprints: 1785 Beispiele zur Ideengeschichte des Schachproblems , p. 362, 1982
Input: Dieter Berlin, 2023-02-24
Last update: Dieter Berlin, 2023-02-25 more...
1. Sd7! Lg6 2. Dd8 ... 3. Sde5#
1. ... g2 2. Dxg2 ... 3. Sfe5#
1. ... a6 2. Dxe8 ... 3. Sb6#
1. ... h3 2. Dxg3 ... 3. Sd2#
1. ... g2 2. Dxg2 ... 3. Sfe5#
1. ... a6 2. Dxe8 ... 3. Sb6#
1. ... h3 2. Dxg3 ... 3. Sd2#
Keywords: Zugzwang-Goal, Bivalve (vierfach)
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 4bNQ1/pR2p3/4P3/2P2R1p/p1kP3p/b1P2Np1/P3K3/4B3
Reprints: 1634 Beispiele zur Ideengeschichte des Schachproblems , p. 330, 1982
Input: Dieter Berlin, 2023-03-03
Last update: Dieter Berlin, 2023-03-04 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 4bNQ1/pR2p3/4P3/2P2R1p/p1kP3p/b1P2Np1/P3K3/4B3
Reprints: 1634 Beispiele zur Ideengeschichte des Schachproblems , p. 330, 1982
Input: Dieter Berlin, 2023-03-03
Last update: Dieter Berlin, 2023-03-04 more...
* 1. ... Tf4 2. Dxf4# 1. ... Lg4 2. Dxg4#
1. Lc5? Txc5 2. Sxd4# 1. ... Lxc5 2. Te5# 1. ... Sf3 2. Df4# 1. ... Lg4 2. Dxg4# 1. ... Dh8!
1. Te2! droht 2. De4#
1. ... Tf4 2. Dh5# 1. ... Lg4 2. Df6# 1. ... b6 2. Sxd4# 1. ... b5 2. Te5#
1. Lc5? Txc5 2. Sxd4# 1. ... Lxc5 2. Te5# 1. ... Sf3 2. Df4# 1. ... Lg4 2. Dxg4# 1. ... Dh8!
1. Te2! droht 2. De4#
1. ... Tf4 2. Dh5# 1. ... Lg4 2. Df6# 1. ... b6 2. Sxd4# 1. ... b5 2. Te5#
Keywords: Changed mates, transferred mates, Bivalve
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: q7/bp1NB2B/4P1pp/r4k2/3pR2Q/pN5b/K2P2p1/4nr2
Reprints: 14 Schweizer Schachkompositionen 1976-1986 , p. 11, 1989
Input: Dieter Berlin, 2023-10-30
Last update: Dieter Berlin, 2023-10-31 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: q7/bp1NB2B/4P1pp/r4k2/3pR2Q/pN5b/K2P2p1/4nr2
Reprints: 14 Schweizer Schachkompositionen 1976-1986 , p. 11, 1989
Input: Dieter Berlin, 2023-10-30
Last update: Dieter Berlin, 2023-10-31 more...
a) 1. Sd5+ Kxd2 2. Dg6 Tc3 3. Kf6 Tf3#
b) 1. Se2+ Kc4 2. Th4 Lc3 3. Kg3 Le5#
b) 1. Se2+ Kc4 2. Th4 Lc3 3. Kg3 Le5#
Keywords: discovered checkmate, Battery creation, Battery mates, double-check mate, Exchange of roles (T-L), Liniensperrung, Model mate, Checking key, Check Protection, Selfblock, x pieces move to one square, Bivalve
Genre: h#
FEN: 8/2prp1q1/4pn2/5kp1/1P2p1p1/1RK3nr/1BPp1bp1/5b2
Input: Gunter Jordan, 2023-12-14
Last update: Gunter Jordan, 2023-12-14 more...
Genre: h#
FEN: 8/2prp1q1/4pn2/5kp1/1P2p1p1/1RK3nr/1BPp1bp1/5b2
Input: Gunter Jordan, 2023-12-14
Last update: Gunter Jordan, 2023-12-14 more...
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The problems of this query have been registered by the following contributors:
Brian Stephenson (33)Felber, Volker (6)
Frank Müller (1)
Marcin Banaszek (2)
Dieter Berlin (6)
Stefan Höning (1)
Gunter Jordan (1)
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comment