Die Schwalbe

169 problem(s) found in 6447 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT G='3#' AND K='Unterverwandlung im Schlüsselzug'] [download as LaTeX]

1 - P0508848
Jean-Pierre Boyer
Memorial J. Oudot 1975-1976
2. Preis
P0508848
(2+13) C+
h#7
1. b1=T Kxg6 2. Tb3 axb3 3. g1=L b4 4. Lc5 bxc5 5. h1=D c6 6. Df1 c7 7. Da6 c8=S#
play all play one stop play next play all
t/Allumwandlung, u/61131, u/Stls, t/Excelsior
Erich Bartel: Duplikat siehe P0500774 (2008-04-08)
Anton Baumann: P0500774 hat einen zusätzlichen sB auf d5, welcher tatsächlich nicht erforderlich ist. Welche Stellung wurde ausgezeichnet?
C+ Gustav 4.1d (2021-02-15)
comment
Keywords: Allumwandlung, Excelsior white (auto key), under-promotion key, konsekutive Umwandlungen 4 (tldS), Minimal (B), Selfblock, Model mate, under-promotion in mating move
Genre: h#
FEN: bn6/kn5K/5br1/p7/p7/p1p5/Pp4pp/8
Reprints: feenschach 40, p. 217, 11-12/1977
Input: Erich Bartel, 1997-05-23
Last update: James Malcom, 2021-02-15 more...
2 - P0559614
Johann J. Chaschtschanski
6688v Schach 08/1971
P0559614
(2+6) cooked
h#7
1. e1=S Kd8 2. Sd3 cxd3 3. h1=T d4 4. Th7 d5 5. Se6+ dxe6 6. Sf7+
exf7 7. Kh8 f8=D#

NL:
1. e1=S Kd8 2. Sd3 cxd3 3. Shg6 d4 4. Se7 d5 5. Kh8 d6 6. h1=T dxe7 7. Th7 exf8=D#
play all play one stop play next play all
Yuri Bilokin: correction bNf8-d2 4K2n/6k1/8/8/8/2p5/2Pnp2p/8 (2+6) h#7
1.e1=S Kd8 2.Sd3 cxd3 3.Se4 dxe4 4.h1=R e5 5.Rh7 e6 6.Sf7+ exf7 7.Kh8 f8=Q# (MM) (2022-07-18)
comment
Keywords: Promotion, Excelsior white, Minimal (B), under-promotion key, konsekutive Umwandlungen 3 (stD), Promotion in the mating move, Promotion (D), under-promotion (ts)
Genre: h#
FEN: 4Kn1n/6k1/8/8/8/2p5/2P1p2p/8
Input: Hans-Jürgen Schäfer, 1999-01-01
Last update: Gunter Jordan, 2022-07-18 more...
3 - P0571490
Imre Toth
Magyar Sakkelet 10/1958
Thematurnier des Budapester Schachverbandes, 1958
3. Preis
P0571490
(6+2) C+
h#2
3.1...
1) 1. e1=S Te5 2. Sxd3 Sc6#
2) 1. e1=T Te5 2. Te3 Td5#
3) 1. e1=L La5 2. Lc3 Lb6#
play all play one stop play next play all
Weiß setzt immer mit einer solchen Figur matt, die sich Schwarz eben ausgewählt hat!
more ...
comment
Keywords: Minimal (b), under-promotion key (1) sS 2) sT 3) sL)
Genre: h#
Computer test: (Popeye C-Version 3.47 (1024 KB))
FEN: 8/4N3/7K/8/1B1k4/1P1PR3/4p3/8
Reprints: 537 Ungarische Schachprobleme mit wenigen Steinen [Bakcsi] , p. 155, 1985
Input: Franz Pachl, 1999-04-01
Last update: Dieter Berlin, 2023-08-13 more...
4 - P0577273
Unto Heinonen
3901 feenschach 66 08/1983
3. Preis
P0577273
(2+9) C+
ser-h#17
1. f1=L 2. g1=T 3. Tg3 4. Te3 5. g3 6. g2 7. g1=D 8. Dg4 9. Lg2 10. Ld5 11. Ke4 12. Df5 13. g4 14. g3 15. g2 16. g1=S 17. Sf3 Sc5#
play all play one stop play next play all
paul: With bPd3 to c4, the checkmate looks better. (2022-03-30)
A.Buchanan: I guess the smothered mate is thematic, at the cost of the more common model mate (2022-03-31)
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comment
Keywords: Allumwandlung, black, Seriesmover, under-promotion key (l), Smothered mate, Model mate, Check Protection, Minimal (S)
Genre: Fairies
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/N7/4pkp1/3p1pp1/3p4/5pp1/2K5
Reprints: Suomen Tehtäväniekat 01/11/1994
Phénix 32 08/1995
072 Kegelschach [Ebert u. Wolfenter] 1997
Rochade Europa , p. 59, 05/1998
846 Minimalkunst im Schach 2006
Input: Felber, Volker, 2000-01-06
Last update: Gunter Jordan, 2022-03-31 more...
5 - P1015630
Valery Surkov
7603 feenschach 01-05/1999
P1015630
(5+2) C+
s#4
1. c8=S+ Kf6 2. h8=L+ Kg6 3. f8=S+ Kh6 4. Lg7+ Dxg7#
play all play one stop play next play all
2311
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-03-31)
comment
Keywords: Minimal (d), Miniature, Checking key, under-promotion key, under-promotion B/S, under-promotion (LSS), konsekutive Umwandlungen 3 (SLS), Antiphönix
Genre: s#
FEN: 6K1/q1P1kP1P/8/3Q4/8/8/8/8
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Gunter Jordan, 2022-03-31 more...
6 - P1016660
Andrey Dikusarov
1112 Variantim 10/2003
P1016660
(3+4) C+
s#4
1. h8=L f5 2. Ld4 f4 3. Lf2 f3 4. Ke1 Kxc2#
play all play one stop play next play all
more ...
comment
Keywords: Miniature, under-promotion key (L)
Genre: s#
Computer test: Gustav 4.2a, Brute Force
FEN: 8/7P/5p2/8/8/8/p1RK4/rk6
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Alfred Pfeiffer, 2022-01-31 more...
7 - P1017733
Nenad Petrovic
Die Schwalbe 1930
P1017733
(15+10)
#2
1. hxg8=S
play all play one stop play next play all
BS Problemid: 2564
Authors: Petrovic, Nenad
Sources: FIDE Album (1914-1944) (I) 1971
Years: 1930
Henrik Juel: many duals (2021-09-24)
comment
Keywords: Brian Stephenson Collection (2564), Albino, Pickaninny, under-promotion key
Genre: 2#
FEN: n5r1/1B2pp1P/2KP1P1B/2p2b1R/1bP1k3/n1PNP1rR/1N4P1/7Q
Reprints: Die Schwalbe 48, p. 162, 12/1977
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2021-09-24 more...
8 - P1035310
Eric Manfred Hassberg
The Christian Science Monitor 1948
1. Preis
P1035310
(10+10) C+
#2
1. f8=S? droht 2. Te6# 1. ... Dg8!

1. Sf6! droht 2. Dd5#
1. ... Sxd8,Sa5+ 2. Sd7#
1. ... Sd6 2. De7#
1. ... S7c5 2. Dc7#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (20240), under-promotion key (S, Verführung), Line closing
Genre: 2#
Computer test: Juel: Popeye 4.61 + SCHRECKE
FEN: B2QN2B/Kn3Prq/bR4p1/1p2k3/Rb4P1/1n2Pp2/8/8
Reprints: 363 FIDE Album 1945-1955 , p. 77, 1964
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-02-08 more...
9 - P1037522
Aleksandr V. Galitsky
125 Shakhmatnoe obozrenie 7 01/1892
P1037522
(7+4) C+
#4
1. e8=D? Ka2!

1. e8=L! Ka2 2. Lf7+ Kxb1 3. Lc4 Kc1,Kc2 4. La2#
1. ... Kb4 2. Tc4+ Kb3 3. Lf7 Ka2 4. Tc1#
1. ... Kxa4 2. Tc4++ Kb3 3. Sd2+ Ka3,Ka2 4. Ta4#
play all play one stop play next play all
im Orignaldiagramm kein wBb6, bei den Lösungen ('SO' Heft 13-14, 07-08/1892, S. 282) heißt es, daß der Autor diesen hinzugefügt hat, um das Kurzmatt in der Variante 1. e8=L Kxa4 2. Tb6# zu verhindern.
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comment
Keywords: Brian Stephenson Collection (22470), under-promotion key (wL), Battery creation (zweifach), Knight sacrifice, Battery mates (zweifach)
Genre: n#
Computer test: SCHRECKE: Gustav 4.2b
FEN: 8/4P3/1PR5/p7/P7/1k1P4/1p2K3/bN6
Reprints: 231 Versunkene Schätze , p. 101, 1998
777 Aleksandr Galitzky – Schachmatny Heine vol. 1, p. 420, 2010
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-02 more...
10 - P1037745
Dawid Przepiorka
Schweizerische Schachzeitung 1917
P1037745
(7+6)
#4
1. f8=L! Sf5 2. Lf2
1. ... Se4 2. Lb4
1. ... Sf7 2. Lf6
1. ... Se8 2. Ld8
play all play one stop play next play all
Henrik Juel: trial 1.f8=L Se8 2.Sd5,Sa8,Ld8 (2024-02-15)
more ...
comment
Keywords: Brian Stephenson Collection (22694), under-promotion key (L), Grab (sS)
Genre: n#
FEN: 8/5P2/1N1n4/8/2P4B/8/Pp1p4/krbQ3K
Reprints: 1167 FIDE Album 1914-1944/II , p. 214, 1972
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-02-15 more...
11 - P1043943
Henry Wald Bettmann
More White Rooks 1911
P1043943
(6+2)
#4
1. c8=T! Sxc8 2. bxc8=T Kd7 3. f8=T Kd6 4. Tfd8#
1. ... Sd5+ 2. cxd5 Kxd5 3. b8=D ... 4. De5#
play all play one stop play next play all
Henrik Juel: many duals after 1... Sc6 2.f8=D+ Kd7 (2022-08-31)
comment
Keywords: Brian Stephenson Collection (28939), Minimal, under-promotion key (wT), under-promotion (wT dreifach), Rook sacrifice, Promotion (wD)
Genre: n#
FEN: 8/1PP1nP2/3k1K2/8/2P5/8/4P3/8
Reprints: I. Die Schwalbe 4, p. 90, 04/1970
275 Versunkene Schätze , p. 120, 1998
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-09-25 more...
12 - P1043976
Theodor Siers
Heinrich Wittwer

British Chess Federation 1935-1936
Lob
P1043976
(7+4) C+
#4
1. a8=S! Sc5+ 2. Ka7 droht 3. Tb1#
2. ... Sb7 3. Sc7 Sd6,S~ 4. Tb1#
2. ... Sb3 3. Tb4 Sd2,Sc1 4. Th4#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (28972), Siegfried Theme, under-promotion key (S)
Genre: n#
Computer test: Popeye 4.61
FEN: 1R6/Pn6/K6p/7P/8/4NNp1/6P1/7k
Reprints: 28a Deutsche Schachblätter 3, p. 96, 15/03/1937
V. Die Schwalbe 133, p. 436, 01/1939
36 Schach-Express , p. 45, 01/05/1947
931 FIDE Album 1914-1944/II , p. 174, 1972
31 Schach ohne Partner [Grasemann] , p. 38, 1977
Schach-Report , p. 59, 07/1991
258 Rösselsprünge – Schachkompositionen und Schachaufsätze 2002
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-02-20 more...
13 - P1046125
Alois Johandl
8877 Schach-Echo 8, p. 126, 04/1976
Informalturnier
1. Preis
P1046125
(6+11) C+
#5
1. d8=S droht 2. Sc6#
1. ... Txd8 2. exd8=S Sxc8 3. bxc8=S+ Ka8 4. Sxb6+ Ka7 5. c8=S#
play all play one stop play next play all
Endgültiger Preisbericht von PR Dieter Müller, 06/1978, Heft 11, Seite 180
more ...
comment
Keywords: Brian Stephenson Collection (31137), konsekutive Umwandlungen 4 (SSSS), under-promotion key (S), under-promotion in mating move (S)
Genre: n#
Computer test: SCHRECKE: Gustav 4.1d
FEN: 1bB3r1/kPPPP1p1/pp1n2K1/1p6/8/2pr2p1/8/8
Reprints: 8877 Schach-Echo 1, p. 19, 01/1978
80 Schachexpress (DBSB) 06/2013
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-01-14 more...
14 - P1054317
Manfred Zucker
1021 Freie Presse (Chemnitz) 19/12/1969
Weihnachts- und Neujahrsgruß
2. ehrende Erwähnung
P1054317
(4+7) C+
#4
1. Kc3? e1=D+!
1. Kd3? e1=S+ 2. Kc3 b5 3. Da8+ Sc6!
1. g8=D? Sc6!

1. g8=S! Sxg8 2. Kd3 e1=S+ 3. Kc3 b5 4. Da8#
play all play one stop play next play all
(MZ176)
more ...
comment
Keywords: Brian Stephenson Collection (39364), under-promotion key (S), Sacrifice key, under-promotion (sS), Line opening
Genre: n#
Computer test: SCHRECKE: Gustav 4.1d
FEN: 8/1p2n1P1/4p3/3kp1p1/Q3N3/8/2K1p3/8
Reprints: XV. Die Schwalbe 22, p. 79, 08/1973
71 Ausgewählte Schachaufgaben [Zucker] , p. 42, 1989
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-10-01 more...
15 - P1055103
Lazar Zalkind
Zadachi i etyudy 1929
P1055103
(7+5) C+
#4
1. c8=T! Ta4 2. Td8 Td4 3. Txd4
1. ... Ta6 2. Tf8 Tf6 3. Txf6
1. ... Txa7 2. Tg8 Tg7 3. Txg7
1. ... Taxb5 2. Te8 Te5 3. Txe5
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (40153), under-promotion key (T), Stalemate avoidance, pin-mate, double-check mate
Genre: n#
Computer test: SCHRECKE: Gustav 4.2g
FEN: 7B/P1P5/8/rP6/8/p7/prB4P/k6K
Reprints: 1262 FIDE Album 1914-1944/II , p. 233, 1972
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-21 more...
16 - P1055227
Michael Schneider
13327 Schweizerische Schachzeitung 02/1990
2. Preis
P1055227
(9+11) C+
#2
1. f8=S! droht 2. Sc6#
1. ... Td3,Sg4 2. Sg6#
1. ... Tg4 2. Sf3#
1. ... Sd3 2. Sd7#
1. ... d5 2. cxb8=D,L#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (40278), under-promotion key (S), Promotion in the mating move (D,L)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 1b6/rQP1pP1B/p2p3n/2n1kp1N/3N3R/6r1/1p6/1K1R4
Reprints: KunstschaCH 2001
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-11-05 more...
17 - P1093621
Anatoli N. Kejv
2773 Schach-Aktiv 04/2003
P1093621
(8+4) C+
s#6
1. b8=L! Kh3+ 2. Df3+ Kh4 3. Dg2 Kh5 4. g8=S Kh4 5. f8=L Kh5 6. Le7 Lxg2#
1. ... Kg1+ 2. Df3 Lg2 3. g8=T Kh1 4. f8=L Kg1 5. Lfd6 Kh1 6. Lh2 Lxf3#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-11-03)
comment
Keywords: konsekutive Umwandlungen 3 (LSL,LTL), Exchange of Promotions, under-promotion key (T)
Genre: s#
FEN: K7/PP3PPp/1p5P/1P6/5Q2/8/6k1/7b
Input: Frank Müller, 2009-11-08
Last update: Marcin Banaszek, 2020-11-07 more...
18 - P1110402
George P. Sphicas
7423 Die Schwalbe 130 08/1991
5.Preis Inf.T., Richter: M. Rittirsch
P1110402
(8+9)
ser-h=26
1. bxc1=T 2. Th1 3. c1=L 4. c2 5. d1=S 6. Lxe3 7. Lg1 8. e3 9. e2 10. e1=L 11. Lh4 12. Sf2 13. c1=T 14. Tc3 15. Th3 16. c3 17. c2 18. c1=T 19. Tcc3 20. Tcg3 21. e4 22. e3 23. e2 24. e1=D 25. Dxe6 26. Dd5 Lxd5=
play all play one stop play next play all
AUW+3, probably the first time in sh= (Autor).
Erich Bartel: ND 1) G27 Fide-Album 1989-1991
2) StrateGems (5) I-III 1999
3) A2180 Phenix (75) VI 1999 (2012-06-18)
more ...
comment
Keywords: Allumwandlung, Seriesmover, konsekutive Umwandlungen 7 (tlsltsd), under-promotion key
Genre: Fairies
FEN: 1B4B1/8/4P3/4p1pK/2p1p1P1/2p1P3/Rppp3k/2N5
Reprints: G27 FIDE Album 1989-1991 1997
Input: HBae, 2010-07-13
Last update: Gunter Jordan, 2023-11-27 more...
19 - P1113393
Nikos Siotis
169v Rochade 07/1983
P1113393
(7+6) C+
s#2
Korrektur in Europa-Rochade 03/1984, Seite 23
1. b8=L droht 2. Db7+ Lxb7#
1. b8=L Te4 2. Dc4+ Txc4#
1. b8=L Tf3 2. Dd3+ Txd3#
1. b8=L c6 2. Db5+ cxb5#
1. b8=L Sc6 2. Da5+ Sxa5#
1. b8=L Sxd5 2. Sxc7+ Sxc7#
play all play one stop play next play all
more ...
comment
Keywords: dentist theme, under-promotion key (L)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: K1N1N3/1Pppn3/k7/3Q4/PP6/4r3/8/7b
Input: Frank Müller, 2010-08-22
Last update: Dieter Berlin, 2023-11-23 more...
20 - P1118362
Ernst Schulz
4004 Die Schwalbe 99, p. 458, 03/1936
P1118362
(5+2) C+
#2
1. d8=S! Kb6,Ka6 2. bxa8=S#
1. ... Kb8 2. Sc6#
1. ... Lxb7 2. Dxb7#
play all play one stop play next play all
Im Hauptspiel zwei aufeinanderfolgende Umwandlungen in Springer!
BUS2S
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comment
Keywords: Miniature Collection (0002592), Minimal, Miniature, under-promotion key (S), under-promotion in mating move (S), Zugzwang-Goal, konsekutive Umwandlungen 2 (SS)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: b1B5/kP1PQ3/8/8/K7/8/8/8
Reprints: 156 Schachminiaturen Zweizüger , p. 43, 1965
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2024-04-02 more...
21 - P1118595
Wladimir S. Grebeschkow
213 Sa ogneupory 22/10/1988
P1118595
(4+2) C+
#4
1. h8=L! Ka8 2. Kxa6 Kb8 3. Le5+ Ka8 4. b7#
1. ... Kb8 2. Kxa6 Ka8 3. b7+ Kb8 4. Le5#
play all play one stop play next play all
MA-LB BUL4D
more ...
comment
Keywords: Miniature Collection (0343206), Minimal (b), Miniature, under-promotion key (L), Stalemate avoidance, Pawn mate
Genre: n#
Computer test: SCHRECKE: Gustav 4.2e
FEN: 8/Nk5P/pP6/K7/8/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-12-23 more...
22 - P1120809
Nikolay S. Zinovyev
15437 Ideal-Mate Review 102 07/2006
P1120809
(4+3) C+
#7
1. b8=S+! Dxb8+ 2. Kxb8 Kb6 3. d5 Ka6 4. d6 Kb6 5. d7 Kc6 6. d8=T Kb6 7. Td6#
play all play one stop play next play all
BUT22 IM BUS7
more ...
comment
Keywords: Miniature Collection (0329374), Miniature, Checking key, under-promotion key (S), under-promotion (wT), Stalemate avoidance
Genre: n#
Computer test: A. Baumann: Gustav 4.2a
FEN: K7/1P6/kq6/1p6/1P1P4/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-11-25 more...
23 - P1121512
Thomas R. Dawson
1011 The Chess Amateur 11/1920
P1121512
(5+2) C+
#2*
* 1. ... Kxe8 2. b8=D#

1. b8=S! Kxe8 2. Dg8#
play all play one stop play next play all
BUS20_ ZB2DS m
more ...
comment
Keywords: Miniature Collection (0005846), Minimal, Miniature, Exchange of Promotions, under-promotion key, Promotion in the mating move (D im Satz)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: K3Nk2/PP2p3/4Q3/8/8/8/8/8
Reprints: 3 Arbeiter-Schachzeitung (Chemnitz) 8, p. 233, 08/1928
23 Schachminiaturen Zweizüger , p. 16, 1965
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-01-12 more...
24 - P1123583
Nikolay S. Zinovyev
10694 Ideal-Mate Review 78 04/2000
P1123583
(5+2)
#4
1. a8=L Ka6 2. Ka3 Kb5 3. Lb7 Kc4 4. Sd6#
play all play one stop play next play all
SX3L IM BUL4
SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-12-06)
comment
Keywords: Miniature Collection (0328371), under-promotion key, under-promotion (L), Miniature, Minimal (b), Schlüssel = Eckzug, Ideal mate, Switchback (k)
Genre: n#
FEN: 2N5/P7/1B6/1k6/8/1K1p4/3P4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2023-12-06 more...
25 - P1125433
Pavel Kamenik
Severocesky denik 05/05/1990
P1125433
(4+1)
#2
1. a8=L+? Kc8,Kb8
2. e8=D#
1. ... Kxa8!

1. e8=L! Kc8 2. a8=D#
1. ... Ka8 2. Lc6#
play all play one stop play next play all
BUL25 m
SCHRECKE: C+, popeye 4.87 (2023-03-12)
comment
Keywords: Miniature Collection (0314608), under-promotion key (L,L), Miniature
Genre: 2#
FEN: 8/Pk2P3/1B6/1K6/8/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2023-03-12 more...
26 - P1128044
Julius R. Neukomm
1 Schachkongress Teplitz-Schönau im Oktober 1922 , p. 433, 1923
P1128044
(6+1)
#2
1. e8=T
play all play one stop play next play all
BUT20_ ZB2xT MW
SCHRECKE: C+, popeye 4.87
1.e8T! K:d7 2.Lb5# (2022-04-18)
comment
Keywords: Miniature Collection (0009915), under-promotion key (T)
Genre: 2#
FEN: 1KN5/3NP3/2k5/5P2/2B5/8/8/8
Reprints: 1 Arbeiter-Schachzeitung (Chemnitz) 8, p. 233, 08/1928
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-04-18 more...
27 - P1130559
Michail K. Kormilzew
129 Kudesnik 29 10/11/1995
Lob
P1130559
(4+3) C+
#4
1. a8=L! gxh1=D 2. Lxh1 Ka1 3. Ld5 a2 4. Sb3#
play all play one stop play next play all
SX10 BUL4
more ...
comment
Keywords: Miniature Collection (0326827), Miniature, under-promotion key (L), Stalemate avoidance, Zugzwang-Goal, Theme B2
Genre: n#
Computer test: SCHRECKE: Gustav 4.2h
FEN: 8/P7/8/N7/8/p7/k1K3p1/7R
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2024-04-05 more...
28 - P1132587
Henri Gerard Marie Weenink
Tijdschrift van den NSB 06/1920
P1132587
(5+2) C+
#2
* 1. ... Kb6 2. c8=S#

1. c7-c8=L! Kb8 2. Sc6#
play all play one stop play next play all
BUL23_ BUS10_ FFS_ ZB2SL
vf: Wiktor Pilipenko, 19.04.1998, Temp-64;
a1<>h1, Ewald Ullrich, 1925, Dresdner Anzeiger
more ...
comment
Keywords: Miniature Collection (0012200), Holst promotion, Minimal, Miniature, Mutate, under-promotion key (wL), under-promotion in mating move (wS im Satz)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 3B4/kBP5/8/N1p5/2K5/8/8/8
Reprints: 201 Schachminiaturen Zweizüger , p. 52, 1965
Problemschach [Sidler] , p. 114, 1968
502 Einführung in die Welt des Schachproblems 1984
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-01-15 more...
29 - P1135041
Hugo Habermann
Die Brennessel 16/01/1934
P1135041
(4+1) C+
#2
1. c8=S! Kxd8 2. Tf8#
play all play one stop play next play all
BUS20 IM LOT
more ...
comment
Keywords: Miniature Collection (0309741), Miniature, Homebase, under-promotion key (S), Stalemate avoidance, Rex solus, Flight giving sacrifice key
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 3Bk3/2P5/2K5/8/8/8/8/5R2
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2024-01-26 more...
30 - P1139573
Jozsef Korponai
14 Sztalinvaros 19/07/1955
2. Preis
P1139573
(5+2)
#2
1. g8T! (Zugzwang) ... Sc7/Sf4 2. Tg4/Tc8, ... Sc5/Sd4 2. Sde5/Sfe5
play all play one stop play next play all
C4-24SS
vf: Sergei Tkatschenko, 04.1998, Tidskrift för Schack
a1=b1, Louis Tryssesoone, 03.1983, Probleemblad
SCHRECKE: C+, popeye 4.87 (2023-10-05)
comment
Keywords: Miniature Collection (0015513), under-promotion key (T), Stalemate avoidance, Minimal, Miniature
Genre: 2#
FEN: 8/1Q1N2P1/4n3/8/2k5/5N2/3K4/8
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2023-10-05 more...
31 - P1142917
William A. Shinkman
Otto B. Wurzburg

Akademische Monatshefte für Schach 1908
P1142917
(4+2) C+
#4
1. b8=T+! Sb6 2. Tb7 Ka6 3. Ta7+ Kb5 4. Ta5#
play all play one stop play next play all
BUT4
more ...
comment
Keywords: Miniature Collection (0076081), Minimal (b), Miniature, under-promotion key (T), Blocknutzung
Genre: n#
Computer test: SCHRECKE: Gustav 4.2e
FEN: 8/1P6/2NK4/1k1n4/8/1P6/8/8
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-12-16 more...
32 - P1144420
Hanspeter Suwe
1448 Kieler Nachrichten 26/07/1969
P1144420
(5+1) C+
#2
b) -wBg4
a) 1. g8=S Kd5 2. Sf6#;
b) 1. g8=D Kf5 2. De6#
play all play one stop play next play all
BUS22
more ...
comment
Keywords: Miniature Collection (0311263), Miniature, Rex solus, under-promotion key (wS), Promotion key (wD)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87 a)+b)
FEN: 8/3K2P1/8/8/4k1P1/2Q4N/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2022-11-08 more...
33 - P1147582
Emil Mächler
? 1985
D.H. Rizetti-Memorial 1985
3. Lob
P1147582
(5+1) C+
#2
1. e8=D? 1. e8=T? droht 2. De4# 1. ... Kc6! 1. e8=L? droht 2. Tb5# 1. ... Ke5!

1. e8=S! Kc6 2. De6# 1. ... Ke5 2. Tb5#
play all play one stop play next play all
H.Henneberger: Auch eine Art AUW, für eine zweizügige Miniatur bemerkenswert!
BUS20
more ...
comment
Keywords: Miniature Collection (0266087), Miniature, Rex solus, under-promotion key (wS)
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/4P3/8/3k4/6Q1/B7/1R6/4K3
Reprints: 74 Schweizer Schachkompositionen 1976-1986 , p. 31, 1989
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-11-03 more...
34 - P1148546
Louis M. Tryssesoone
8766 Probleemblad 03/1983
P1148546
(5+2)
#2
1. h8=T
play all play one stop play next play all
C4-24SS
vf: b1=a1, Joszef Korponai, 1956, Sztalinvarosi Hirlap;
b1=a1, Sergei Tkatschenko, 04.1998, Tidskrift för Schack
Henrik Juel: C+ Popeye 4.61 (2023-10-05)
comment
Keywords: Miniature Collection (0292375), anticipated (P1139573), under-promotion key (T), Stalemate avoidance
Genre: 2#
FEN: 8/2Q1N2P/5n2/8/3k4/6N1/4K3/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2023-10-05 more...
35 - P1150420
Dezsö Elekes
Teplitz-Schönauer Anzeiger 09/1923
P1150420
(5+2)
#2
1. d8=S e6 2. Tf7#
play all play one stop play next play all
ZB2DS ZDB_
Henrik Juel: C+ Popeye 4.61 (2023-12-03)
comment
Keywords: Miniature Collection (0308230), under-promotion key (S)
Genre: 2#
FEN: 5N2/3Pp2R/5k2/8/4KP2/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2023-12-02 more...
36 - P1153771
Claus Grupen
D1849 Problem Observer 01/2006
4. ehrende Erwähnung
P1153771
(3+1)
#5
1. f8=L! Kh8 2. Kf7 Kh7 3. Sf3 Kh8 4. Lg7+ Kh7 5. Sg5#
1. ... Kg8 2. Sf3 Kh7 3. Kf7 Kh8 4. Lg7+ Kh7 5. Sg5#
2. ... Kh8 3. Kf7 Kh7 4. Sg5+ Kh8 5. Lg7#
play all play one stop play next play all
Die Aufgabe existiert bereits (gespiegelt), siehe P1144775.
MA-LS IM BUL5
Henrik Juel: C+ Popeye 4.61 (2022-05-07)
comment
Keywords: Miniature Collection (0340703), anticipated, Rex solus (s), Miniature, under-promotion (L), under-promotion key, Corner mate, Reciprocal moves by White, Ideal mate, Flight taking
Genre: n#
FEN: 4K3/5P1k/8/8/7N/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2022-05-07 more...
37 - P1155995
Ado Kraemer
1475 Wiener Schach-Zeitung 07/1929
P1155995
(2+4)
#4
1. c8=T! g3+ 2. Kxg3 Sc5 3. Txc5 Kg1 4. Tc1#
play all play one stop play next play all
BUT4
udo.de: früher erschienen in Dortmunder GeneraL-Anzeiger, 14. Februar 1929, Aufgabe Nr. 11 (2024-03-21)
comment
Keywords: Miniature Collection (0331968), Minimal, under-promotion key (T), Miniature, Stalemate avoidance
Genre: n#
FEN: 8/2P5/8/8/n5p1/8/5K1p/7k
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2024-03-21 more...
38 - P1155997
Allan Theodor Werle
8918 Tidskrift för Schack 03/1945
P1155997
(2+2) C+
#4
1. e8=D? d1=S+ 2. Kg3 Se3! 3. Dxe3? patt
1. e8=T d1=S+ 2. Kg3 Se3 3. Txe3 Kg1 4. Te1#
play all play one stop play next play all
BUT4_ H39 m
vf: a1<>h1, Pierozak, 09.1985, Europe Echecs
Henrik Juel: C+ Popeye 4.61 (2021-08-14)
comment
Keywords: Miniature Collection (0080455), under-promotion (T,s), Minimal (B/b), under-promotion key, Kindergarten Problem, Miniature
Genre: n#
Computer test: Popeye 4.61
FEN: 8/4P3/8/8/8/8/3p1K2/7k
Reprints: Problemschach [Sidler] , p. 115, 1968
25 Schachmatnyje kwartety , p. 18, 1983
59 Schachmatni superminiatjuri 1988
Schach-Echo 9, p. 240, 05/1995
4a-1813 2345 Chess Problems 1997
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2022-04-23 more...
39 - P1160862
Hanspeter Suwe
1765 Kieler Nachrichten 26/08/1972
P1160862
(6+1) C+
#2
b) wKf7; c) wKf8
a) 1. g8=L;
b) 1. g8=S;
c) 1. g8=D
play all play one stop play next play all
BUL26 BUS20
more ...
comment
Keywords: Miniature Collection (0304474), Rex solus, Miniature, under-promotion key (wL, wS), Promotion key (wD), Flight-giving key
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 1B5R/1B1k2PP/5K2/8/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2022-11-08 more...
40 - P1162123
Lajos von Szasz
Ernö Szentgyörgyi

Magyar Sakkvilag 08/1926
P1162123
(4+1) cooked
#2
1. b8=L! droht 2. Db5#
1. ... Kd8 2. Dc7#
play all play one stop play next play all
Cook: 1. Db5+
ZB2xL
more ...
comment
Keywords: Miniature Collection (0308618), Miniature, Rex solus, under-promotion key (L), Stalemate avoidance
Genre: 2#
Computer test: SCHRECKE: NL
FEN: 8/1P1k1K2/5P2/2Q5/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2024-01-04 more...
41 - P1164219
Francis J. C. de Blasio
321 Sjakk-Nytt 11/1947
P1164219
(5+2) C+
#2
1. e8=L! Sd3,Sc4,Sc6,Sd7 2. Lh5#
1. ... Sf3,Sg4,Sg6,Sf7 2. Lb5#
play all play one stop play next play all
BUL24
more ...
comment
Keywords: Miniature Collection (0310252), Minimal (b), Miniature, under-promotion key (L), Stalemate avoidance, Zugzwang-Goal
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/4P3/8/B3n3/8/8/2B1kPK1/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Dieter Berlin, 2024-01-24 more...
42 - P1166867
Peter Gvozdjak
1486 Pravda (Bratislava) 21/10/1983
P1166867
(5+1)
#2
1. d8=L
play all play one stop play next play all

Duplicate Diagram: P1412749

BUL26
Henrik Juel: C+ Popeye 4.61 (2023-10-05)
comment
Keywords: Miniature Collection (0312736), anticipated (P1349543), Stalemate dissolution, under-promotion key (L)
Genre: 2#
FEN: R7/1P1P2k1/6P1/6K1/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2023-10-05 more...
43 - P1168159
Johannes Kohtz
Carl Kockelkorn

Zum Feierabend 1876
P1168159
(4+2) C+
#2
1. f8=L! Kxe8 2. Dc8#
play all play one stop play next play all
'DAZ'-Lösetip: "D- und T-Züge [führen] nicht zum Ziele. Ein K-Zug - es käme nur Kxg7 in Frage - würde an der Stellung nichts ändern; bleibt also nur 1. f7-f8. Aber was wird der Bauer? Eine D würde den Schwarzen patt setzen; T u. S. lassen den K nach d6 entweichen, also 1. f7-f8=L. Dadurch wird dem K das Feld d6 genommen und Te8 preisgegeben. ... Mit dem Bauern in die Dame zu gehen, ist nicht immer der stärkste Zug."
E7bD2 BUL20
vf: '64', 1975, von wem?

in den 'Kölner Nachrichten (Sonntags-Blatt)' nachgedruckt mit der Autorangabe (Pseudonym?!) "Fritz K. in C."
more ...
comment
Keywords: Miniature Collection (0029525), under-promotion key (L), Stalemate avoidance, Sacrifice key (T), Miniature, Minimal
Genre: 2#
Computer test: popeye 4.87
FEN: 4R3/3k1Pp1/6K1/8/2Q5/8/8/8
Reprints: 4 Kölner Nachrichten (Sonntags-Blatt) 23/11/1879
74 Schachminiaturen - Neue Folge 1903
48 Deutsche Allgemeine Zeitung 25/06/1921
6 Arbeiter-Schachkalender , p. 85, 1926
70 Schachminiaturen Zweizüger , p. 25, 1965
Input: Felber, Volker, 2010-09-12
Last update: Mario Richter, 2023-03-27 more...
44 - P1173365
Hans-Christoph Krumm
Werner Speckmann

C Deutsche Schachzeitung , p. 158, 04/1977
P1173365
(2+2) C+
#8
1. f8=T! Kg7 2. Tf1,Tf6 Kh7 3. Tf7+ Kg8 4. Kg6 h5 5. Tf4 h4 6. Txh4 Kf8 7. Te4 Kg8 8. Te8#
play all play one stop play next play all
BUT8 T12T
more ...
comment
Keywords: Miniature Collection (0087151), Kindergarten Problem, Minimal, Miniature, under-promotion key (T), Stalemate avoidance
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/5P1k/7p/7K/8/8/8/8
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-11-23 more...
45 - P1186942
Alfred Olaf Karlström
5942 Die Schwalbe 12/1939
P1186942
(10+6) C+
s#2
1. a8=T! Ld7 2. Sf5 gxf5#
1. a8=T Lf7 2. Sd5 cxd5#
play all play one stop play next play all
more ...
comment
Keywords: indirekte Entfesselung, under-promotion key (T), Pawn mate (zweifach)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 4b3/P1R1N2k/2p3p1/2p1B1P1/2p1KP2/2P1PP2/8/8
Input: Frank Müller, 2011-02-08
Last update: Dieter Berlin, 2024-02-11 more...
46 - P1187595
Anatoly Stepochkin
167 The Ural's Problemist 07-09/1996
P1187595
(10+8) C+
s#2
1. h8=T! Te4 2. Scxd4+ Lxd4#
1. ... Tf4 2. Sfxd4+ Lxd4#
1. ... Tg4 2. Dh5 Lf2,Le3#
1. ... Th5 2. Txh5 Lf2,Le3#
1. ... Th6 2. Txh6 Lf2,Le3#
1. ... Th7 2. Txh7 Lf2,Le3#
1. ... Txh8 2. Txh8 Lf2,Le3#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (T)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 5R2/1Bp4P/2N3Q1/5N2/3p3r/3P1kPp/3P3p/5Kbr
Input: Frank Müller, 2011-02-19
Last update: Dieter Berlin, 2024-03-18 more...
47 - P1197534
Jorma Pitkänen
48 The Macedonian Problemist 05-08/2000
P1197534
(5+7) C+
s#5
1. c8=L d5 2. b8=S d4 3. Sc6 d3 4. Se5 d2 5. Sg6+ Lxg6#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2, under-promotion (LS), under-promotion key
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 3B4/1PP5/3p4/6rp/7k/8/p6P/rb5K
Input: Frank Müller, 2011-06-13
Last update: James Malcom, 2020-09-22 more...
48 - P1214289
Edward Boswell
2363 Springaren 01/1954
A Merry Christmas
P1214289
(11+6) C+
s#2
1. c8=L Lxf7 2. La6 Lxb4#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (L)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 1N3Kb1/k1P2PRp/2B4P/8/1Q6/b7/Rp3r2/1N4B1
Input: Frank Müller, 2011-10-11
Last update: Dieter Berlin, 2024-02-24 more...
49 - P1217172
Witali I. Pimenow
Sergey Pimenov

? 1930
Wettkampf Rostoff/Don-Moskau
P1217172
(6+3) C+
#2
1. f8=L! Kh8,Kg8 2. Dxg7#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-02-08)
comment
Keywords: Promotion, under-promotion key (L)
Genre: 2#
FEN: 4B3/3Q1Ppk/8/6P1/6Rp/7K/8/8
Input: Felber, Volker, 2011-11-08
Last update: James Malcom, 2021-02-09 more...
50 - P1217923
Heinrich Friedrich Ludwig Meyer
181 Brüderschaft 43, p. 197, 23/10/1886
P1217923
(7+5) C+
#2
1. e8=S! Kf5 2. Sxd6#
1. ... Kd5 2. Sxf6#
1. ... d5 2. Sd6#
1. ... f5 2. Sf6#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (S), Symmetrical position, Zugzwang-Goal, Symmetrical solution
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 8/4P3/3ppp2/1P2p2P/4k3/1P2B2P/4K3/8
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2024-03-11 more...
51 - P1228541
Wolfgang Pauly
4861 La Strategie 05/1922
P1228541
(7+5) C+
s#3*
* 1. ... Kh8 2. f8=S Sa5# u.ä.
1. f8=L Kh8 2. Le7 Kh7 3. Lxf6 Sa5# u.ä.
play all play one stop play next play all
SCHRECKE: vergleiche: P1228540 (2023-11-18)
more ...
comment
Keywords: Batteriematt diagonal, Exchange of Promotions, under-promotion key (L), under-promotion (wS, im Satz)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: b7/1n3P1k/5pR1/5P2/8/6B1/5p1P/5R1K
Reprints: 750 Wolfgang Pauly. Challenge of a Legacy 2001
Input: Frank Müller, 2011-12-28
Last update: Dieter Berlin, 2023-11-17 more...
52 - P1230054
Wilhelm Günther
6015 Die Schwalbe 12/1939
Dem Andenken Dr. Ed. Birgfelds gewidmet
Dr. Birgfeld-Gedächtnisturnier
P1230054
(7+10) C+
s#2
1. f8=S! droht 2. Sg6+ Dxg6#
1. ... Tc1,Ta3 2. Le5+ Dxe5#
1. ... Tb3 2. Df3+ Txf3#
1. ... Tc4 2. Dd4+ Txd4#
1. ... Lb1 2. De5+ Dxe5#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (S)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/2pP1P2/4K2n/1p1Q2q1/5krb/2r3p1/b2P2P1/B7
Input: Felber, Volker, 2012-01-13
Last update: Dieter Berlin, 2024-02-25 more...
53 - P1236271
Gerhard Maleika
3614 Freie Presse (Chemnitz) 16/06/1995
P1236271
(10+9) C+
#2
1. d8=S! droht 2. Sxe6#
1. ... Lf7,Lg8 2. Sf2#
1. ... Lc8,Ld7 2. Sd2#
1. ... Lxc4 2. Se6#
1. ... Lxg4 2. Se6#
1. ... Lf5 2. De3#
1. ... Sf3 2. Dxf3#
play all play one stop play next play all
more ...
comment
Keywords: Black correction, discovered checkmate, under-promotion key (S), discovered checkmate, pin-mate, Blocknutzung
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/3P4/3Pb1pK/1p2P2p/1RN2kNR/1p1Q3p/8/3Bb1n1
Reprints: 779 Problemschach-Jahrbuch 1995 D , p. 326, 1995
Input: Felber, Volker, 2012-04-08
Last update: Dieter Berlin, 2023-05-30 more...
54 - P1244386
N. P. Madsen
5272 Tidskrift för Schack 07-08/1913
P1244386
(11+7) C+
s#4
1. f8=L! gxh5 2. Lb6 Kxb6 3. Dc5+ Ka6 4. Dg1 Tb1,T~#
1. ... g5 2. Ld6 g4 3. e7 gxh3+ 4. Dxh3 Tb1,T~#
play all play one stop play next play all
more ...
comment
Keywords: Bauernschlag-Varianten, under-promotion key (wL), Batteriematt diagonal
Genre: s#
Computer test: SCHRECKE: Gustav 4.2a
FEN: b1Q5/1r3P1N/k3P1pR/p6P/P6p/6pP/6K1/5NB1
Reprints: 331 Versunkene Schätze , p. 141, 1998
Input: Frank Müller, 2012-07-09
Last update: Dieter Berlin, 2022-10-14 more...
55 - P1262992
Ralf Krätschmer
Der Tagesspiegel 19/05/1996
P1262992
(9+2)
#4
1. h8=D? Txc3+! 2. Dxc3=
1. h8=L! Txc3+ 2. Lxc3 Kxh3 3. b8=T Kh2 4. Th8#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-05-24)
comment
Keywords: under-promotion (T), Minimal, under-promotion key (L), Stalemate avoidance
Genre: n#
FEN: 8/1P5P/8/8/8/1rR4P/1P2PB1k/2K3R1
Input: Felber, Volker, 2013-02-22
Last update: Dieter Berlin, 2023-05-23 more...
56 - P1263873
Andor Rozsa
4826 Magyar Sakkelet 09/1984
1. Preis
P1263873
(7+12) C+
s#5
1. f8=S! droht 2. Sgf6+ Kh4 3. Sxg4+ Kh5 4. Sgf6+ Kh4 5. Dh3+ Txh3#
1. f8=S Lb2,La1 2. Sef6+ Kg5,Kh4 3. Sxg4+ Kh5 4. Df7+ Kxg4 5. Txg3+ fxg3#
1. f8=S Td3 2. Sef6+ Kg5,Kh4 3. Sd5+ Kh5 4. Dxe5+ Lxe5 5. Sxf4+ Lxf4#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (S)
Genre: s#
Computer test: A.Baumann: Gustav 4.2a
FEN: 3B2N1/5P2/4Q2p/4p2k/1p2Npp1/R1b3r1/5ppK/5br1
Input: Frank Müller, 2013-03-08
Last update: Dieter Berlin, 2024-01-13 more...
57 - P1267787
Michel Olausson
217 Problemkiste (80) 04/1992
P1267787
(7+6)
h=2
Duplex
w) 1. h1=T a8=T 2. Ta1 Txa1=
s) 1. ... Lg1 hxg1=L 2. a8=S Lc5=
play all play one stop play next play all
SCHRECKE: a)+b): C+, popeye 4.87 (2023-07-05)
comment
Keywords: under-promotion (Tt,Sl), konsekutive Umwandlungen 2 (tT,lS), under-promotion key (in w)
Genre: Fairies
FEN: 2b5/PkPp4/1P1p4/3K1p2/2P2P2/4B3/7p/8
Input: Erich Bartel, 2013-04-20
Last update: Gunter Jordan, 2023-07-04 more...
58 - P1268348
Theodor Steudel
F7 Problemkiste (93) 06/1994
P1268348
(2+4)
ser-h=4*
* 1. ... Df2=
1. g1=S 2. Se2 3. Sf4 4. Sg2 Df2=
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (2022-11-18)
comment
Keywords: Seriesmover, under-promotion (s), Minimal (D), Miniature, under-promotion key, pin-stalemate, Round Trip (b/s-4), Rückkehr nach Umwandlung
Genre: Fairies
FEN: 8/8/8/4K3/8/4Q2p/6pk/7b
Input: Erich Bartel, 2013-04-25
Last update: Gunter Jordan, 2022-11-19 more...
59 - P1270473
Saturnin Limbach
4138 Magyar Sakkelet 12/1977
Lob
P1270473
(9+2) C+
s#10
b) wBe7->d7
a) 1. e8=T Ka3 2. Db2+ Ka4 3. Tee4 Ka5 4. Db6+ Ka4 5. Tg1 Ka3 6. Db2+ Ka4 7. Tb1 Ka5 8. Db6+ Ka4 9. Db5+ Ka3 10. Sc2+ Sxc2#
b) 1. d8=D Ka3 2. Db2+ Ka4 3. Dh4 Ka5 4. Db6+ Ka4 5. Tg1 Ka3 6. Db2+ Ka4 7. Tb1 Ka5 8. Db6+ Ka4 9. Db5+ Ka3 10. Sc2+ Sxc2#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force (2020-10-19)
comment
Keywords: Exchange of Promotions, Twin, under-promotion key (in a), Promotion key (in b), Minimal (s), Selfblock
Genre: s#
FEN: 8/4P3/1QP5/2P2P1P/k2n2R1/4N3/8/K7
Reprints: 1896 Szachy 05/1980
Input: Frank Müller, 2013-05-20
Last update: Gunter Jordan, 2022-07-25 more...
60 - P1272942
Guy Sobrecases
10134 Thema Danicum 124 10/2006
P1272942
(3+6)
h#5
2.1...
1) 1. b4-b3 Kf5 2. b2 Kxf6 3. b1=L Kxf7 4. La2+ Kg6 5. Lg8 Ld4#
2) 1. e1=S Kf5 2. Sf3 Lh6 3. Sg5 Kxf6 4. Sh7+ Kxf7 5. b4-b3 Lg7#
play all play one stop play next play all
Meeraner, farbvertauschte Form (auf 2 Phasen verteilt), Themafigur: sB
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-08-01)
comment
Keywords: under-promotion key (in 2), under-promotion (s in 2), under-promotion (l in 1), Meerane-Thema
Genre: h#
FEN: 7k/5p2/5p2/8/1p3K2/3pB3/3Pp3/8
Input: Felber, Volker, 2013-06-23
Last update: Gunter Jordan, 2022-08-01 more...
61 - P1279804
Baruch Lender
2683 Mat (Belgrade) 11-12/1979
P1279804
(11+6) C+
s#3
1. c8=T! droht 2. Tb8 ... 3. Tb6+ axb6#
1. c8=T Sxc2 2. Sd4+ Sxd4 3. Tc6+ Sxc6#
1. c8=T Sxf3 2. Sd4+ Sxd4 3. Tc6+ Sxc6#
1. c8=T Sd3 2. Te2+ Se5 3. Lb6 axb6#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (T), Pawn mate
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 3R4/p1P3Q1/P3k3/K4p2/P4p2/1r3N2/B1N2R2/4n1B1
Input: Frank Müller, 2013-10-30
Last update: Dieter Berlin, 2024-03-03 more...
62 - P1280119
Gerald Ettl
6712 feenschach 11/1994
Lob
P1280119
(6+8)
s#14
1. a8=T+ Kb6 2. b8=D+ Kxc6 3. d8=S+ Kd7 4. c8=L+ Kxd8 5. La6+ Kd7 6. Lb5+ Ke6 7. De8+ Kf6 8. De7+ Kg6 9. Le8+ Kh6 10. Df6+ Kh7 11. Lg6+ Kh6 12. Lf7+ Kh7 13. Dg6+ Kh8 14. Dh6+ Lxh6#
play all play one stop play next play all
Henrik Juel: Popeye 4.61 with 'opt non 0 1 thr 0' found no flaws (2022-08-15)
comment
Keywords: Allumwandlung, Königslenkung, konsekutive Umwandlungen 4 (TDSL), under-promotion key, Checking key, Perpetual check, Antiphönix, Königswanderung, Edge to edge
Genre: s#
FEN: 5K2/PPPP4/k1Bp4/2pp1p2/8/4b3/8/r3r3
Input: Frank Müller, 2013-11-05
Last update: Gunter Jordan, 2022-08-15 more...
63 - P1282500
Nicolay V. Rezvov
9791 Ideal-Mate Review (73) -1-03/1999
Lob Informalturnier
Richter: Eugene Albert
P1282500
(2+4)
h=6
1. h1=L d4 2. Lc6 d5 3. e1=T dxc6 4. Te8 c7 5. Tb8 cxb8=T 6. Lb2+ Txb2=
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-12-11)
comment
Keywords: Excelsior, under-promotion key (L-4), Minimal (B), under-promotion (ttl), konsekutive Umwandlungen 3 (ltt), Ideal stalemate, Antiphönix (3-fach), Corner mate (-patt)
Genre: Fairies
FEN: 8/8/8/8/8/2K5/3Pp2p/k1b5
Input: Erich Bartel, 2014-01-23
Last update: Gunter Jordan, 2022-02-18 more...
64 - P1283305
Harald Grubert
Dieter Müller
Torsten Linss

10 harmonie 29 30/06/1990
P1283305
(4+3)
h#4
b) sBc2
a) 1. Dd5 Ke2 2. Kf4 Sd8 3. Lf5 Se6 4. Ke4 f3#
b) 1. c1=L d5 2. Lb2 Ke3 3. Lf6 Se7 4. Ke5 f4#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2a, Brute Force (2021-12-27)
comment
Keywords: Chameleon Echo, Ideal mate, under-promotion key (in b), Forsberg Twins, Miniature, Pawn mate, Pawn step variations, Remote selfblock (in a), Selfblock
Genre: h#
FEN: 8/8/2Nq4/5k2/3P4/5K2/2b2P2/8
Reprints: 26 Hilfsmattvierer , p. 11, 2000
Input: TLi, 2014-02-16
Last update: Gunter Jordan, 2021-12-27 more...
65 - P1301878
Ben-Zion Hendel
136 Al Hamishmar 08/05/1947
P1301878
(6+6) C+
s#3
1. d8=T! a3 2. Sf7 a2 3. La1 Ta6#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (T)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: K7/1pkP4/1rp2B2/1pP1N3/pP6/8/8/8
Input: Mario Richter, 2015-04-23
Last update: Dieter Berlin, 2023-11-20 more...
66 - P1302074
Ivan Soroka
3615 idee & form (126) 04/2015
P1302074
(5+2) C+
s#8
1. g8=T! Kh2 2. b4 Kh1 3. b5 Kh2 4. b6 Kh1 7. b7 Kh2 6. b8=L Kh1 7. Dc6+ Lg2 8. Df3 Lxf3#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (TL), Excelsior white (L), under-promotion key (T)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: K7/B5P1/7Q/8/8/7b/1P6/7k
Input: Frank Müller, 2015-04-26
Last update: Alfred Pfeiffer, 2020-10-15 more...
67 - P1304998
Gunter Jordan
13346 Springaren (136) 06/2015
P1304998
(7+4) C+
s#7
2 Lösungen
1) 1. c8=S+ Ke6 2. g8=D+ Tf7 3. Sd6 Kf6 4. Se4+ Ke6 5. Dxg6+ Tf6 6. Ke8 Txg6 7. Dg8+ Txg8#
2) 1. c8=T Ke6 2. Te5+ Kd6 3. Txg5 Ke6 4. d5+ Kd6 5. Df6+ Te6 6. g8=D Txf6 7. Df8+ Txf8#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-11-15)
comment
Keywords: Echo, Exchange of Promotions, under-promotion key, konsekutive Umwandlungen 2 (SD, TD), Checking key (in 1), Antiphönix, Promotion (D)
Genre: s#
FEN: 3K1Q2/2P1r1P1/3k2p1/2R3p1/3P2P1/8/8/8
Input: Frank Müller, 2015-07-03
Last update: Gunter Jordan, 2023-12-29 more...
68 - P1320837
George P. Sphicas
7451 Phénix (256) 12/2015
Lob
PR Thomas Maeder
P1320837
(7+5) C+
ser-s=11
1. f8=S 2. dxc8=D 3. Df5 4. c8=T 5. Tc6 6. b8=T 7. Lc8 8. Sd7 9. Kb7 10. a8=L 11. Dh7+ Txh7,Kxh7=
play all play one stop play next play all
paul: Gustav 4.2a solved this in about 22 minutes. (2023-05-28)
comment
Keywords: konsekutive Umwandlungen 5 (SDTTL), Allumwandlung, Seriesmover, under-promotion key, Antiphönix, pin-stalemate, blocking of a piece (Selbst-)
Genre: Fairies
Computer test: V. Kotesovec: Alybadix (6 h 52 m)
FEN: K1n4k/PPPP1Pr1/B7/q7/8/8/8/7b
Input: Frank Müller, 2016-06-01
Last update: Gunter Jordan, 2022-11-28 more...
69 - P1335197
Dieter Berlin
16874 Die Schwalbe 282, p. 681, 12/2016
P1335197
(14+11) C+
#2
1. dxe7? Txc2!
1. d7? Dc6!

1. g8=S! droht 2. Sxe7#
1. ... c5 2. Sc3#
1. ... c6 2. Lc4#
1. ... cxb6 2. Sxb6#
1. ... cxd6 2. Sf6#
1. ... Sxf5 2. Dxf5#
1. ... Sxg8 2. fxg8=D,L#
play all play one stop play next play all
more ...
comment
Keywords: Pickaninny, under-promotion key, Theme B2 (dreifach), Black correction (sS)
Genre: 2#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: qb3B2/r1p1nPPK/1P1P3R/pB1k1P2/N4P2/4P3/2QNpn2/2rb4
Input: Felber, Volker, 2017-06-23
Last update: Dieter Berlin, 2022-06-07 more...
70 - P1358618
Jorma Pitkänen
11696 feenschach 227 11-12/2017
Version
P1358618
(9+5) C+
s#9
1. d8=S! g5 2. b5 g4 3. b7 Ka7 4. b8=T g3 5. Se6 fxe6 6. f7 e5 7. d5 e4 8. f8=D e3 9. Df2 exf2,gxf2#
play all play one stop play next play all
Version zu P1343954
Gunter Jordan: Lt. Hans Gruber erschien diese Aufgabe in feenschach 227 (2017), tatsächlich erschienen im März 2018. Somit ist feenschach die Erstquelle (sofern die Aufgabe nicht noch irgendwo drittveröffentlicht wurde). Ich habe hier die Erstquelle auf feenschach geändert. Die ursprüngliche 'Erstquelle' The Problemist habe ich als Reprint eingegeben. [GJ] (2020-10-30)
comment
Keywords: Kindergarten Problem, under-promotion (S,T), Promotion (D), under-promotion key (S), Multiple publication, Pawn mate, Antiphönix, Pinning, Flight taking
Genre: s#
Computer test: Gustav 4.0c
FEN: k7/2PP1p2/1P3Pp1/8/1P1P4/3p4/3Pp1P1/4K3
Reprints: S2678c The Problemist 26-9, p. 363, 05/2018
Input: Felber, Volker, 2018-12-11
Last update: Gunter Jordan, 2020-10-30 more...
71 - P1373043
Anton Baumann
19099 Schach , p. 79, 11/2019
P1373043
(7+5) C+
s#10
1. g8=L+! b3 2. Da1+ Lxa1 3. a8=D+ Kb2 4. Da4 g3 5. Lxb3 g4 6. Ld1 Kb1 7. Le2+ Kb2 8. Ke3 Kc3 9. Tb1! Lb2 10. Tc1+ Lxc1#
play all play one stop play next play all
19.099 (Baumann) Zuerst soll der sLäufer in die gegenüberliegende Ecke gelenkt und dort blockiert werden, damit Weiß seinen Mattkäfig bauen kann. Die Unterverwandlung im Schlüsselzug erfolgt, weil der Läufer im Mattbild als Block gebraucht wird. 1.g8L+! b3 2.Da1+ L:a1 3.a8D+ Kb2 4.Da4 g3 (Das Matt auf c1 wird verhindert durch den wBe4! Ohne diesen Bauern geht: 5.Te1 g4 6.Te2 Kb1 7.Lh7+! Kb2 8.Kd1+ Kc3 9.Tc2+ b:c2+ 10.Kc1 Lb2 matt. Also Mattfeld e3!?: 5.Lc4? g4 6.Lf1 Kb1 7.Le2+ Kb2 8.Ke3 Kc2!; jetzt stört die Masse des sBb3, aber das lässt sich beheben) 5.L:b3 g4 6.Ld1 Kb1 7.Le2+ Kb2 8.Ke3 Kc3 9.Tb1! Lb2 10.Tc1+ L:c1 matt (4 P.). „Unterverwandlung im Schlüssel, Läuferlenkung, Phönix, Beseitigung hinderlicher Masse“ (Autor). „Nach der effektvollen Opferlenkung des sL nach a1 funktioniert das weiße Spiel perfekt wie ein Schweizer Uhrwerk“ (KR). „Der Clou liegt im Schlüsselzug: Auf 1.g8D+? würde 5.D:b3 mit Schachgebot erfolgen. Der schwächere Zug erweist sich letzten Endes als der Stärkere“ (KHS).
Henrik Juel: Popeye 4.61 with 'opt nichtt 0 1' found no flaws (2020-03-01)
Anton Baumann: C+ Gustav 4.0i (26 h) (2021-01-12)
comment
Keywords: konsekutive Umwandlungen 2 (LD), corner to corner (l), under-promotion key (L), Phoenix (D)
Genre: s#
Computer test: Gustav 4.0i (26 h)
FEN: 7b/P5P1/8/6p1/1p2P1p1/8/k2K2P1/2Q4R
Input: Felber, Volker, 2020-03-01
Last update: James Malcom, 2021-01-12 more...
72 - P1373752
Valery Gorbunov
Problemist Ukrainy Website 03/2020
Spezialpreis
Mychajlo Myschko MT
Sektion S#7-10
P1373752
(10+4)
s#10
1. f8=L! Kb2 2. Lhg7+! Kc2 3. Sxh4 Kd2,Lb1 4. Sf3+ Kc2,La2 5. Kg8 Lb1 6. Th8 La2 7. Sf6 Kc3,Kb2,Lb1 8. Sh7+ Kc2,La2 9. Lxb3+ Lxb3+ 10. Dc4+ Lxc4#
9. ... Kxb3 10. Da4+ Kxa4#
1. ... Lb1 2. Lfg7+! h3 3. gxh3 La2 4. Sfe7 Lb1 5. Tf8 La2 6. Th8 Lb1 7. Sg8 La2 8. Ta1! Lb1 9. Lxb3+ Kxb3+ 10. Dd3+ Lxd3#
1. ... h3 2. Lfg7! hxg2 3. Th2! Lb1 4. Te1! La2 5. Df1! Lb1 6. Te8 La2 7. Th8,Sfe7 Lb1 8. Sfe7,Th8 La2 9. Sg8 Lb1 10. Dd1+ Kxd1#
play all play one stop play next play all
Anton Baumann: viele Duale:
1. ... Kb2 2.Lhg7+ Kc2 3.Sxh4 Lb1 4.Kg8 La2 5.Sf3 ...
1. ... Lb1 2.Lfg7 La2 3.Txh4,Sfe7 Lb1 4.Sfe7,Txh4 ...
1. ... h3 2.Lfg7 h2 3.Te1,Tf3 ... (2020-12-14)
comment
Keywords: under-promotion key (L)
Genre: s#
FEN: 8/5P1K/Q6B/3N1N2/B6p/1p6/b1k3P1/5R1R
Input: Marcin Banaszek, 2020-03-23
Last update: Alfred Pfeiffer, 2020-03-24 more...
73 - P1374103
James Malcom
MatPlus.net Forum 26/12/2019
“A Tripley For The Holidays”
P1374103
(7+12) C+
h#3
(-:
3.1
1) 1. Se7 Lxh4 2. 0-0 Lxf6 3. Tf7 Th8#

2) 1. La7 b6 2. 0-0-0 bxa7 3. Td7 a8=D#

3) 1. e1=T Lf1 2. 0-0-0-0-0-0! Lxd3 3. Kd5 Lc4#
play all play one stop play next play all
All three castlings in a helpmate on the same move. Compare to P1227518.

http://matplus.net/start.php?px=1609949816&app=forum&act=posts&fid=gen&tid=2409
A.Buchanan: WinChloe rokagogo only finds the intended solutions, no real P-M duals and no fake rokagogo duals:
1.Cé7 F×h4 2.Rg8(Tf8) F×f6 3.Tf7 Th8‡
1.é1=T Ff1 2.Ré6(Té7) F×d3 3.Rd5 Fç4‡
1.Fa7 b6 2.Rç8(Td8) b×a7 3.Td7 a8=D‡ (2021-01-06)
more ...
comment
Keywords: Joke, Staugaard castling, Castling, Promotion in the mating move (D), under-promotion key (T), Castling as mating move
Genre: h#, Fairies
Computer test: Henrik Juel: Solutions 1 and 2 are C+ by Popeye 4.61 C+ WinChloe Rokagogo: no real P-M duals and no fake Rokagogo duals
FEN: rb2k1nr/2p5/3p1p2/1P3p2/5P1p/1K1p1P1R/4pBB1/8
Input: James Malcom, 2020-04-02
Last update: A.Buchanan, 2024-01-18 more...
74 - P1376789
Jozsef Vandorffy
2284 Schach 5, p. 77, 03/1956
P1376789
(2+8)
h#7
1. f1=T Kg2 2. Tf4 gxf4 3. Lg6 f5 4. c2 fxg6 5. Lh8 g7 6. e1=L gxh8=D 7. Ld2 Da1#
play all play one stop play next play all
Cook: LB: ... ist recht unterhaltend, indessen lassen sich ab 3. Zug die schwarzen Züge verschiedentlich umstellen.
Yuri Bilokin: correction bBb2-a1, bBc2-a1, +bNb2, +bPh3 8/8/8/8/6p1/2p1p1Pp/1n2pp1K/bbk5 (2+10) h#7
1.Sd3 Kh1 2.Sf4 gxf4 3.Bg6 f5 4.c2 fxg6 5.Bh8 g7 6.e1=B gxh8=Q 7.Bd2 Qa1# (MM) (2022-08-04)
comment
Keywords: Minimal, under-promotion key (t), under-promotion (l), Promotion (D)
Genre: h#
FEN: 8/8/8/8/6p1/2p1p1P1/1bb1pp1K/2k5
Input: Felber, Volker, 2020-06-08
Last update: Felber, Volker, 2020-06-08 more...
75 - P1377044
Shlomo Seider
Bulgaria 1300 1983
2. Preis
Sektion Circe
P1377044
(7+10) cooked
ser-s#4
Circe
b) sBf4->f3
c) wBf7->h4
a) 1. f7-f8=L 2. Lf8-e7 3. Le7-h4 4. Ta7xa1[+sTh8]+ Th8xh4[+wLc1]#
b) 1. f7-f8=S 2. Sf8-g6 3. Sg6-h4 4. Th2xh1[+sDd8]+ Dd8xh4[+wSg1]#
c) 1. c3xd4[+sBd7] 2. d4xc5[+sBc7] 3. c5-c6 4. Dd3xb3[+sLc8]+ d7xc6[+wBc2]#? 5. Db3xd5[+sBd7]!
play all play one stop play next play all
Aufgestockt von der 1. ehr. Erw. in Shakhmatna Misl 06/1984
Cook: c) no solution: 4. Dd3xb3[+sLc8]+ d7xc6[+wBc2] 5. Db3xd5[+sBd7]!
Gerald Ettl: Verbesserungsvorschlag: wBd5 (Loesung wie oben) C+ (2023-11-03)
comment
Keywords: under-promotion key (L,S), no solution (in c), Circe
Genre: Fairies
FEN: 8/R4P2/8/2pp4/3ppp2/1bPQ2pK/3B3R/r2k3q
Input: Marcin Banaszek, 2020-06-16
Last update: Alfred Pfeiffer, 2020-06-16 more...
76 - P1380353
James Malcom
Guus Rol

www.chess.com 15/7/2020
P1380353
(11+11) C+
#4
1. d8=L!
1. ... Tb8 2. cxb8=L! d4 3. Le5 Lxf4+ 4. Lxf4#
1. ... Txd8 2. cxd8=S! d4 3. Se6 Lxf4+ 4. Sxf4#
1. ... Ta8 2. h8=D! Txd8 3. Txe3+ Kxe3 4. De5#
2. ... d4 3. Dxd4 ... 4. Dxe3#,Txe3#
1. ... Txc7 2. Lxc7 d4 3. Le5 Lxf4+ 4. Lxf4#
1. ... d4 2. Sc4 ... 3. Txd2+ Ke1 4. Lxf2#
play all play one stop play next play all
https://www.chess.com/forum/view/more-puzzles/a-challenging-mate-in-5-can-you-find-the-first-move?page=3
Henrik Juel: C+ Popeye 4.61 (except for a mate dual) (2020-09-27)
more ...
comment
Keywords: under-promotion key (L), Promotion (D), under-promotion (S)
Genre: n#
Computer test: Popeye 4.61
FEN: 2r1R3/2PP3P/1N5K/1P1p4/1p3P2/1B1pbp2/3pkrp1/3R1bB1
Input: James Malcom, 2020-09-27
Last update: A.Buchanan, 2020-10-13 more...
77 - P1380850
Anatoly Stepochkin
3478 Variantim 81 08/2020
1. Lob
Israel Ring Tourney 2019-2020
Section s#5-n
P1380850
(5+2) C+
s#9
1. d8=L! Kh5 2. Dh4+ Kg6 3. g8=D+ Kf5 4. Dhg3 Ke4 5. Lb6 Kf5 6. Kg7 Ke4 7. Kf8 Kf5 8. D8g4+ Kf6 9. Ld8+ Txd8#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (LD), Minimal (t), Miniature, under-promotion key (L)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 7K/3P2P1/6k1/8/5Q2/3r4/2B5/8
Input: Rainer Staudte, 2020-10-12
Last update: Marcin Banaszek, 2021-05-04 more...
78 - P1381267
James Malcom
(1) Mat Plus 21/10/2020
P1381267
(9+13)
#12
(-:
1. a8=sS! Sb6 2. cxb6 cxb6 3. c7 b5 4. c8=S b4 5. Sd6 exd6 6. e7 d5 7. e8=S d4 8. Sf6 gxf6 9. g7 f5 10. g8=S f4 11. Sh6 Sg5 12. Sg4#
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more ...
comment
Keywords: Joke, Joke promotion (s), konsekutive Umwandlungen 4 (sSSS), under-promotion key (s)
Genre: n#
FEN: 7R/P1p1p1p1/2P1P1P1/2P5/8/1B1P1ppn/4prqk/4Kbnr
Input: James Malcom, 2020-10-24
Last update: Alfred Pfeiffer, 2020-10-24 more...
79 - P1381410
Aleksandr Pankratiev
Gravure 2020
4. Lob
P1381410
(6+2) cooked
s#12
1. e8=L! Ka5 2. Te7 Ka6 3. Ld7 Ka5 4. Te8 Ka6 5. Dc8+ Ka5 6. Dc3+ Ka6 7. Dc4+ Ka5 8. Db4+ Ka6 9. Da4+ Kb7 10. Dc6+ Kb8 11. Se7 Lg1,~ 12. Db6+ Lxb6
11. ... Lb6+ 12. Dc7+ Lxc7#
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Cook: Viele NL in 9 Zügen:
1.Lg2 1.Lf3 1.Le4 1.Sc3 1.Tb8 1.e8=D 1.e8=L
zB:
1. e8=D(L) Ka5 2. Se7 Ka6 3. Lc6 Ka5 4. Ld7 Ka6 5. Tb4 Ka5 6. Ta4+ Kb6 7. Dd5 Lb8 8. Da5+ Kb7 9. Dc7+ Lxc7#
(Anton Baumann)
Anton Baumann: Viele NL in 9 Zügen: 1.Lg2 1.Lf3 1.Le4 1.Sc3 1.Tb8 1.e8=D 1.e8=L
zB: 1.e8D(L) Ka5 2.Se7 Ka6 3.Lc6 Ka5 4.Ld7 Ka6 5.Tb4 Ka5 6.Ta4+ Kb6 7.Dd5 Lb8 8.Da5+ Kb7 9.Dc7+ Lxc7#
- ist die Stellung korrekt? (2020-11-10)
Olaf Jenkner: Ja, aber die Lösung war nicht die Autorlösung. Um das Abtippen zu sparen, hatte ich eine Lösung mit Gustav ausgerechnet und angenommen, daß es die Autorlösung sei. (2020-11-10)
comment
Keywords: under-promotion key (L)
Genre: s#
FEN: Q2K4/bR2P3/k7/3N4/8/8/8/7B
Input: Olaf Jenkner, 2020-10-31
Last update: Olaf Jenkner, 2020-11-10 more...
80 - P1381630
Erik Richter
B Deutsche Schachzeitung , p. 422, 12/1975
P1381630
(4+4) C+
#2
1. f8=S! Scd5,Sa8,Sc6,Sb5,Sa6,Se6,Se8 2. Se6#
1. ... Sc6 2. Sxc6#
1. ... Sed5,Sf5,Seg6,Sg8,Sc8 2. Sc6#
1. ... Sf7,Shg6 2. Sexf7#
play all play one stop play next play all
more ...
comment
Keywords: Non-standard material, under-promotion key (S)
Genre: 2#
Computer test: popeye 4.85
FEN: 3k3n/2n1nP2/3N4/4N3/8/8/8/K7
Input: Rainer Staudte, 2020-11-08
Last update: Alfred Pfeiffer, 2020-11-09 more...
81 - P1381646
Milomir Babic
8358v Phénix 301-302 11-12/2019
1. ehrende Erwähnung
P1381646
(12+7) C+
s#9
1. c7-c8=T+! Kc6-d5 2. f7xe8=L b7-b6 3. h7-h8=D b6xc5 4. Dh8-f6 c5xd4 5. Le8-g6 d4-d3 6. Df6-g5 Kd5xd6 7. e7-e8=S Kd6-d5 8. Se8-f6+ Kd5-d6 9. Te1-e6+ d7xe6#
play all play one stop play next play all
Version zu: P1381602
PR Yves Tallec 04-05/2020
SCHRECKE: Das ist ein s#9!
C+, Gustav 4.1d, Brute Force
Umwandlungsläufer sLe8! (2020-11-09)
comment
Keywords: Checking key, under-promotion key, Model mate, Selfblock, Allumwandlung, Pawn mate, Obvious promotion, konsekutive Umwandlungen 4 (TLDS)
Genre: s#
Computer test: Gustav 4.1c
FEN: 4b3/1pPpPP1P/2kP4/1pP2K2/1prP4/1B6/3P4/B3R3
Input: Marcin Banaszek, 2020-11-09
Last update: James Malcom, 2020-11-09 more...
82 - P1381700
A. H. Bobbins
154 American Chess Magazine Vol. 1, p. 443, 12/1897
P1381700
(6+3)
=2 durch Schwarz

Black forces a draw in two moves
1. ... c1=wL!
2. Sb1 axb1=wL! Patt
2. Db1+ axb1=B! Patt
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James Malcom: I've added in the solution now. (2020-11-11)
comment
Keywords: Joke promotion, under-promotion key, konsekutive Umwandlungen 2 (LL, Lb), Dummy Pawn, Golden Age (Dummy Pawn)
Genre: Fairies
FEN: 8/P7/8/5B2/8/K1NQ4/pPp5/k7
Input: James Malcom, 2020-11-10
Last update: A.Buchanan, 2023-08-04 more...
83 - P1381850
Josef Cumpe
Deutsche Schachzeitung , p. 371, 12/1915
P1381850
(5+2)
#2
A nice range of tries, but a dual:
1. e8=T!
1. ... Kxc2 2. 0-0-0-0-0-0#
1. ... bxc2 2. Dd5,De4#
1. ... Kd4 2. De4#

1. De4+? Kxe4!
1. e8=D? Kxc2!
1. Tc4? Kxc4!
1. Tc3+? Kd4!
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'DSZ': "Diese Aufgabe regt den Gedanken an, daß die itaienische freie Rochade noch viel besser hätte ausgenützt werden können, als es (ehedem) tatsächlich der Fall war."

ähnelt stark der P1277302
A.Buchanan: @Henrik how should the dual here impact C+ status we assign? What's the general principle we curators should apply, to avoid us having to make subjective judgements? (2021-01-07)
A.Buchanan: My own simple-minded aesthetic says this is a major dual, because one mate achieves no individual expression elsewhere (2021-01-07)
Henrik Juel: The easiest principle is to say that C+ means completely correct: no cooks and no duals
I would permit short mates, because they occur as a result of suboptimal defense, and double threats, if they do not materialize as duals
But it seems fair also to permit minor duals, including promotion mate duals like TD og LD
So I would not label this problem C+ (2021-01-08)
A.Buchanan: Thank you Henrik, for your thoughtful response. A lot is bundled into one bit of information: the value of the C+? flag. I went back to the Codex to learn more. I think C+ should mean (1) it's been tested & (2) it is sound. Sound (which we don't have in PDB yet) for an antagonistic problem (i.e. d# or s#) means three things: (1) there is a solution (2) there's no cook & (3) there's a defence which forces the specified number of moves. Legality doesn't impact soundness, and for antagonistic problems, neither do duals.

The Codex says there is a lot of judgement involved in assessing the impact of duals in a d#. "C+?" is a result of computer analysis, and I don't think there should be any curator subjectivity in determining its value. I think the answer is to have "duals" as a new separate field so that your valuable analyses aren't lost in conversation, and people can understand the spectrum of quality. In the end, maybe people will be able to set up in their profile their personal preference for dual tolerance, but that's probably some way ahead. I think there are naturally core fields (like cooked?, legal?, tested?) and derived fields (like sound? C+?, HC+?) whose values depend on the core ones. I've sent some notes to Gerd along these lines to see what he thinks. Any thoughts yourself? (2021-01-08)
comment
Keywords: Staugaard castling, under-promotion key (T), Castling as mating move, Miniature, Joke, Minimal, Rokagogo
Genre: 2#, Fairies
Computer test: WinChloe rokagogo is sufficient to test soundness, although there is a dual
FEN: 8/4P3/8/8/8/1p1k4/1PR5/4K2Q
Input: Mario Richter, 2020-11-13
Last update: A.Buchanan, 2024-01-18 more...
84 - P1381916
James Malcom
PDB Website 14/11/2020
P1381916
(13+9)
s#11
(-:
1. h8=T+! Sh6 2. exd8=K! b3 3. a8=sS! b2 4. b8=sL! La7 5. e4 Lb8 6. e5 La7 7. e6 Lb8 8. e7 La7 9. e8=B! Lb8 10. Ta4 La7 11. Txa7 g4#
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A rather... complicated "joke."
A.Buchanan: If one allows promotion to sB (and there seems no reason to disallow it since promotion to pawn, king and foreign units are allowed) then the problem is cooked. There is no universally agreed notion of how a pawn can move if it starts on the first rank. Does it get a double hop, and if so on which rank? But the problem is unsound in any case. (2022-02-10)
James Malcom: That is if, yes. But I don't think this problem ought to be left as is: a demonstration of the levels of absurdity and tomfoolery old rules used to allow. Promotion to a piece of another color and dummies were loopholes, yes, but promotion to a black pawn was never included, not even implicitly. All pawns are pieces, but not all pieces are pawns. (2022-02-10)
more ...
comment
Keywords: Joke promotion (Ksl), Dummy Pawn, konsekutive Umwandlungen 5 (TKslB), under-promotion key (T), Excelsior white, Golden Age (Dummy Pawn), Illegal position (no wK), Joke
Genre: s#, Fairies
Computer test: Difficult to test at the moment because no engine allows both normal and adversarial promotion.
FEN: 2Rr2n1/PPpBP2P/1pP5/1N4pk/1p4Rb/6pP/4P1P1/1Q6
Input: James Malcom, 2020-11-14
Last update: A.Buchanan, 2023-12-11 more...
85 - P1382003
Jan Hartong

P1382003
(9+8) C+
#2
1. h8=S! droht 2. Sxf7#
1. ... Dxh8 2. Tc6#
1. ... Lxh8 2. De6#
1. ... Sgxh8 2. Le7#
1. ... Sfxh8 2. Txd8#
1. ... Txh8 2. Td7#
1. ... Dc6,Dh7 2. Txc6#,Tc6#
1. ... Dd5 2. Sb5#
1. ... Lxc3 2. De6#
1. ... Sxg5,Sh6 2. Txd8#
1. ... Td7,f8 2. Txd7#,Td7#
play all play one stop play next play all
Originalquelle laut 'NWT': "Turn. Breslau 1924"
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comment
Keywords: under-promotion key (S)
Genre: 2#
Computer test: Popeye 4.61
FEN: 2Rr4/2R2n1P/1P1k2n1/p1N1b1B1/5p2/K1N5/8/4Q2q
Reprints: Neues Wiener Tagblatt 06/02/1944
Input: Mario Richter, 2020-11-16
Last update: Alfred Pfeiffer, 2020-11-21 more...
86 - P1383111
Andriy Sergiyenko
134 Schach , p. 51, 09/2020
Corona Kompositionsturnier 2020
P1383111
(5+2) C+
#2
b) wTf3 statt wLf3
a) 1. c8=T! Ka6 2. Ta8#
b) 1. c8=L! Ka8 2. Ta3#
play all play one stop play next play all
more ...
comment
Keywords: Forsberg Twins, under-promotion key (T,L)
Genre: 2#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 8/k1P1n1R1/8/2K1B3/8/5B2/8/8
Input: Felber, Volker, 2020-12-18
Last update: Alfred Pfeiffer, 2020-12-19 more...
87 - P1383483
Ado Kraemer
611 Deutsche Schachzeitung 5, p. 120, 02/1955
P1383483
(4+6) C+
#6
Ohne den wS ginge Matt in 2 durch 1. b8=D, also muss der wS verschwinden.
1. d8=S Sd6 2. Sf7+ Sxf7 3. Se3 Sd6 4. Sf5+ Sxf5 5. b8=D
Hat eine starke persönliche Note und gehört zu meinen Lieblingen (Erich Zepler)
play all play one stop play next play all
[A.K./E.Z. #237]
more ...
comment
Keywords: under-promotion key (S), Employment steering, Opferminimal
Computer test: Gustav 4.1d, Brute Force
FEN: 8/1P1P3p/5K1k/5n1p/7p/8/4p3/5N2
Input: RJB, 2007-10-26
Last update: James Malcom, 2021-06-25 more...
88 - P1384783
Fadil Abdurahmanovic
Boris Shorokhov

Shakhmatnaya Kompozitsiya 138 2017
2. ehrende Erwähnung
P1384783
(5+12)
h#4
1. b1=S g5 2. Sxd2 0-0-0 3. Sb1 Td7 4. Le1 Lh3#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-31)
comment
Keywords: Unpinning, Klasinc theme (s-K/T), Line opening, Line opening, Line closing, Model mate, Castling, Switchback (s), under-promotion (s), under-promotion key
Genre: h#
FEN: 8/8/4k3/pp2p3/1pb1p1P1/2b2pp1/1p1P4/R3KBr1
Input: Gunter Jordan, 2020-12-31
Last update: Gunter Jordan, 2020-12-31 more...
89 - P1384840
Zoran Gavrilovski
S0827 StrateGems 93 01-03/2021
1. ehrende Erwähnung
P1384840
(10+14) C+
s#3
1. c7-c8=S! droht 2. Sc8-b6+ A Tc6xb6+ 3. Dd1-d5+ B La8xd5#
1. ... Txd6+,Tc5+ 2. Dd1-d5+ B Txd5 3. Tb3xc3+ C Kc4xc3#
1. ... Sg2xe3 2. Tb3xc3+ C Kc4xc3+ 3. Dd1-d4+ D Da4xd4#
1. ... b5-b4 2. Dd1-d4+ D Kc4-b5 3. Dd4-d3+ E Tc6-c4#
1. ... Sg2-f4 2. Dd1-d3+ E Sf4xd3 3. Sc8-b6+ A Tc6xb6#
play all play one stop play next play all
Judge Mike Prcic, 10-12/2022
more ...
comment
Keywords: under-promotion key (s), white move cycle
Genre: s#
Computer test: Popeye 4.83
FEN: b7/2Ppr3/2rPNpp1/pp6/q1k1K2n/PRp1P3/4P1nb/N2Q4
Input: Marcin Banaszek, 2021-01-01
Last update: Dieter Berlin, 2022-10-02 more...
90 - P1384869
Charles Dealtry Locock
No. 3. Knowledge Volume 21, p. 24, 01/01/1898
P1384869
(6+4)
Remis
1. e8=sS##! Remis!
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James Malcom: The 3rd and final one of the trio: https://www.google.com/books/edition/Knowledge/T59AAQAAMAAJ?hl (2021-01-02)
Henrik Juel: Why is this considered remis?
Even when we accept that White may promote to a black officer, the prohibition of putting your own king in check is in effect, so the move is illegal (2021-01-02)
James Malcom: Henrik, that's precisely why it's a joke; they can have numerous meanings. as well.

The solution, on page 47, says this about it: "Both sides being mated simultaneously, the game seems a fair draw."

Compare to the later P1380947. (2021-01-02)
comment
Keywords: Joke, Joke promotion, under-promotion key
Genre: Studies
FEN: 2r5/2PkPR2/5K1p/1P2P3/8/8/8/1q6
Input: James Malcom, 2021-01-02
Last update: James Malcom, 2021-01-02 more...
91 - P1384929
John Augustus Miles
Sussex Chess Magazine 28/02/1883
P1384929
(10+4)
White to move, s#2
Black to move, Remis
a) 1. gxh8=sS! Sf7 2. Se5+ Sxe5#

b) 1. ... Dc8+ 2. Sf5 Dxf5+ 3. Kg3 Dxh3+ 4. Kf2 Df1+ 5. Kg3 Dh3+ Remis
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Originalforderung:
This Problem's thus enunciated;
And in the statement is no flaw:
White, with first move, can get checkmated;
Black, moving first, can only draw.

Das 'Sussex Chess Magazine' merkt dazu an: "There is a touch of brimstone about this. Strict disciplinarians had better not try it, if they value their peace of mind."
Und da keine Lösungen eingingen, wurde in der Ausgabe vom 14.03.1883 ergänzt: "... we will hint that, in the first part, White takes advantage of the lax wording of the law of promotion by claiming a black piece, and thus 'qui perd gagne'. The second part is plain sailing ..."
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comment
Keywords: Joke, Joke promotion, under-promotion (s), under-promotion key (s)
Genre: 2#
FEN: 7q/6Pp/6kP/8/4rRKR/5NNP/2B5/7Q
Input: James Malcom, 2021-01-03
Last update: James Malcom, 2021-07-17 more...
92 - P1385575
Daniele Gatti
1356 Sinfonie Scacchistiche 141 07-09/2020
P1385575
(13+7) C+
s#9
1. a7-a8=S+! Kb6xc6 2. b7-b8=S+ Kc6xd6 3. c7-c8=S+ Kd6-e6 4. d7-d8=S+ Ke6-f6 5. e7-e8=S+ Kf6-g6 6. f7-f8=S+ Kg6-h6 7. g7-g8=S+ Tg3xg8 8. h7xg8=S+ Dg2xg8 9. Ta3-h3+ Sg1xh3#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (S), konsekutive Umwandlungen 8 (SSSSSSSS), Promotions to Knights
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/PPPPPPPP/1kNN4/R7/n7/R5r1/6qp/K5nr
Input: Marcin Banaszek, 2021-01-20
Last update: Alfred Pfeiffer, 2021-01-20 more...
93 - P1386333
Dieter Berlin
16123 Die Schwalbe 270, p. 683, 12/2014
P1386333
(12+13) C+
#2
1. f8=S! droht 2. Le4#
1. ... Sc4 2. Sc3#
1. ... Sc6 2. Sb6#
1. ... Sd7 2. Txd6#
1. ... Sef7 2. Le6#
1. ... Seg6 2. Sxf6#
1. ... Sg4 2. Sxf4#
play all play one stop play next play all
Dreiviertel schwarzes Springerrad
more ...
comment
Keywords: Promotion, under-promotion key (S), Knight's wheel (sSe5)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 3r2bn/5P2/R2p1p1r/2BknBPN/NP3p1q/b2p1p2/1P6/1KQ1R3
Input: Dieter Berlin, 2021-02-08
Last update: Dieter Berlin, 2024-01-21 more...
94 - P1386619
Pascale Piet
8870 Seven Chess Notes 176 09/2020
P1386619
(2+5) C+
h#5
1. d1=S Txh8 2. Se3 Tb8 3. Sf5 Txb3 4. Kh8 Tf3 5. Sg7 Tf8#
play all play one stop play next play all
Auf h7 genügt ein sB! C+
Henrik Juel: missing stipulation, probably just h#5 (2021-02-19)
comment
Keywords: Corner mate, Kniest Theme, Miniature, Minimal (T), Model mate, Round Trip (T-5), Selfblock, under-promotion (S), under-promotion key
Genre: h#
Computer test: Gustav 4.0 i
FEN: 5R1b/6kr/8/8/8/1b6/3p4/K7
Input: Gunter Jordan, 2021-02-18
Last update: Mario Richter, 2021-02-20 more...
95 - P1386911
Manfred Zucker
6626 Schach , p. 189, 06/1971
In memoriam Kurt Galke (8.7.1891-28.3.1971)
P1386911
(3+3) C+
s#8
Längstzüger
1. h8=T+! Kb7 2. Dc7+ Ka6 3. Dc8+ Sb7 4. Th3 Kb6 5. Db8 a5 6. Ta3 Kc5 7. De5+ Kb6 8. Dc5+ Sxc5#
play all play one stop play next play all
Ein reizender Sechssteiner mit T-Unterverwandlung, Damenopfer und Idealmatt
(MZ239)
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2021-03-01)
Henrik Juel: Actually C+ Popeye 4.61 (1 hour) (2021-03-01)
comment
Keywords: Miniature, Maximummer, Queen sacrifice, Ideal mate, under-promotion key (T), Schlüssel = Eckzug, Checking key
Genre: Fairies
FEN: k7/p6P/8/n7/K7/8/7Q/8
Input: Felber, Volker, 2021-03-01
Last update: Marcin Banaszek, 2021-03-07 more...
96 - P1386990
Jan Rusinek
2350 Problemista 112-123 11-12/1971
1. Preis
Informalturnier 1971-1972
P1386990
(3+4) cooked
Remis
1. d8=T! Lc3+ 2. Td2 Kf3 3. Sa2 La5 4. Sb4 Lxb4 patt
4. ... Ke3 5. Te2+ Lxe2 patt
3. ... Sd3+ 4. Kd1 La4+ 5. Tc2 La5 6. Sc3 Lxc3 patt
play all play one stop play next play all
PR Grzegorz Grzeban 05-09/1973
Cook: Unlösbar
Siehe Version: P1399953
Anton Baumann: unlösbar!
... 4.Sb4 Sd3+!! 5.Kd1 Lxb4 -+. Nach Nalimov gewinnen die 3 Leichtfiguren gegen den Turm in 37 Zügen!
Wie der Autor selber festgestellt hat (vergl. yacpdb ID 285201) gewinnt S auch mit 2. ...Lc4! 3.Sc2 Kf3 4.Sd4+ Ke3 5.Sc2 Kf4 6.Kxf2 Lxd2 -+. Nach Nalimov braucht S so noch 20 Züge. (2022-03-04)
comment
Keywords: Miniature, Stalemate defense, under-promotion key (T)
Genre: Studies
FEN: 7b/3P4/8/1b6/1N6/8/5nk1/4K3
Reprints: 1287 Problemista 140-144 05-09/1973
2565 EG 44 05/1976
763 FIDE Album 1971-1973 1978
Input: Marcin Banaszek, 2021-03-05
Last update: Marcin Banaszek, 2022-03-31 more...
97 - P1387490
Ivan Romanenko

P1387490
(4+3) C+
#3
1. f8=T Ka3 2. Tf2 a4 3. Txg3#
2. ... Ka4 3. Ta2#
play all play one stop play next play all
zum Autor s. Anmerkung zu P1391824
SCHRECKE: C+, popeye 4.85 (2021-03-17)
comment
Keywords: under-promotion key (T), Block, Miniature
Computer test: SCHRECKE (2021-03-17): C+, popeye 4.85
FEN: 8/5P2/8/p7/k1K5/6pR/6P1/8
Reprints: 6 Salzburger Volkszeitung 20/08/1949
392 Chess Life and Review 01/1971
Input: Rainer Staudte, 2021-03-17
Last update: Mario Richter, 2021-07-16 more...
98 - P1388252
Hugo Knuppert
Lars Larsen

2230 Deutsche Schachzeitung 1, p. 47, 01/1967
1. Lob
P1388252
(12+9) C+
#2
1. f8=S! Te5 2. Dc4#
1. ... Te4 2. Td3#
1. ... Te3 2. fxe3#
play all play one stop play next play all
more ...
comment
Keywords: Black correction, under-promotion key (S), Blocknutzung, Line closing, pin-mate, Pawn mate
Genre: 2#
Computer test: SCHRECKE: C+, popeye 4.85 (2021-04-08)
FEN: 1K4nB/2Q1NP1b/1p2rr2/6p1/1P1k1bR1/1P5R/2P1nP2/7B
Input: Dieter Berlin, 2021-04-08
Last update: Dieter Berlin, 2023-03-12 more...
99 - P1388375
Horacio L. Musante
1643 V Deutsche Schachzeitung 11, p. 392, 11/1962
1. Preis
P1388375
(9+9) C+
#2
1. c8=D? Ld6 2. Dxa8#
1. ... Dxd3 2. Dd7#
1. ... Db8!

1. c8=S! Ld6 2. Sb6#
1. ... Dxd3 2. Se7#
play all play one stop play next play all
Verbesserung: zusätzlich wTc2
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comment
Keywords: Changed mates (Halbfesselung), under-promotion key (S)
Genre: 2#
Computer test: SCHRECKE: C+, popeye 4.85 (2021-04-10)
FEN: b4N2/2P3n1/P7/Rqbk4/1r1p1Q2/1n1N4/2RpP2K/8
Input: Dieter Berlin, 2021-04-10
Last update: Alfred Pfeiffer, 2021-04-20 more...
100 - P1388395
A. Berk
5 Leidsche Courant 24/12/1910
P1388395
(7+4) C+
#2
1. c8=S! droht 2. Sb6#,Sd6#
1. ... b4 2. Sd6#
1. ... Lh1,Ld5~ 2. Sb6#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion key (S), Symbol problem (Kreuz), Promotion key
Genre: 2#
Computer test: C+ Popeye 4.61
FEN: 8/2P5/2P5/PppbP3/2k5/2P5/2Q5/2K5
Input: Mario Richter, 2021-04-10
Last update: James Malcom, 2021-04-22 more...
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