Die Schwalbe

94 problem(s) found in 3799 milliseconds (displaying 94 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT S='Schachmatnaja Komposizija' AND K='asymmetrische Lösung'] [download as LaTeX]

1 - P0004269
Herbert Hultberg
7969 Tidskrift för Schack 03/1938
P0004269
(3+6) C+
#3
Längstzüger
1. exf6ep d5,g5 2. Db7 g5,d5 3. Dg7#
play all play one stop play next play all
Henrik Juel: The longest among the possible last moves is f7-f5, so 1.exf6ep d5 2.f7 g5 3.f8Q!?, but 3... Kh7!, so something is wrong. (2003-11-11)
HBae: Habe korrigiert. Es fehlte der wKa1 und die wDb2. (2019-10-11)
Henrik Juel: C+ by Popeye 4.61 (assuming that the condition was in effect also in last move)
Pd7 and Pg4 can be removed without affecting correctness or symmetry (2019-10-11)
Bernd Schwarzkopf: Pd7 and Pg4 are necessary. Without them last move could have been: 1.Pg6xXf5. (2021-02-06)
Mario Richter: Interestingly, the Editors of 'TfS' too thought that Pd7 and Pg4 can be omitted (s. 'TfS' 06/1938, p.124: "Går det inte lika bra utan bönderna på d7 och g4? (BL). Jo, det går visst lika bra. Men förf. har väl haft någon mening med dem också (Red.)."

I think, pawn d7 serves to prevent retractions like R: 1.Pg6xXf5, but pawn d4 is only there to complete the symmetry (i.e. Pd7 is necessary, Pg4 is not). (2021-02-06)
A.Buchanan: Doesn’t bPg4 stop 2.Dg2 as a dual? (2021-02-07)
comment
Keywords: Maximummer, En passant as key, Asymmetrical solution, Symmetrical position
Genre: Retro, 3#, Fairies
FEN: 7k/3p2p1/4p3/4Pp2/6p1/8/1Q6/K7
Reprints: (II) Problem 65-68 01/1960
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-06-03 more...
2 - P0502631
John Niemann
2748 The Fairy Chess Review 06/1937
P0502631
(5+3)
-1s dann h#1
R: 1. ... Ke4xSd4, dann Kf4 Sge6#
play all play one stop play next play all
Adrian Storisteanu: BQc3 not needed (5+2) for soundness!? (2021-05-07)
comment
Keywords: Symmetrical position, Asymmetrical solution
Genre: h#
FEN: 7K/6N1/1P3N2/4p3/3k4/2q5/5P2/8
Reprints: H25 ASymmetrie 2013
Input: hpr, 1996-07-23
Last update: Alfred Pfeiffer, 2013-07-17 more...
3 - P0515072
Thomas R. Dawson
4056 Stratford Express 18/09/1937
P0515072
(4+5) cooked
h#2
1. d4 Sh6 2. Tg5 Ta6#
play all play one stop play next play all
Cook: NL:
1. d4 Kg8 2. Tf5 Ta6#
Adrian Storisteanu: Possible fix (a bit rough, but the wK is still employed):
Kg7 Ra1 Se6 Sf5 / Ke5 Rb4 Rd2 Sh8 pc4 pd3 (4+6)
1.c3 Sg5 2.Rf4 Ra5#. (2019-10-12)
A.Buchanan: Pushing wS to f8 & h6 seems to fix the cook. Maybe that's where they were meant to be all along: hard to imagine old TRD making such an error. WinChloe hasn't got this one, so can't confirm. (2019-10-14)
Adrian Storisteanu: Nice workaround, Andrew! Dawson had his share of cooks... (2019-10-14)
Yuri Bilokin: possibly wNf7-f5, bRe2-f2, -bPe4 7K/8/5kN1/1r1p1N2/8/8/5r2/R7 (4+4) (2022-12-16)
comment
Keywords: Symmetrical position, Asymmetrical solution, Superseded by (P1389169)
Genre: h#
FEN: 7K/5N2/5kN1/1r1p4/4p3/8/4r3/R7
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: A.Buchanan, 2021-05-02 more...
4 - P1000246
Andrej N. Kornilow
Alexander Kislyak

10666 Die Schwalbe 181 02/2000
P1000246
(15+15) C+
BP in 30,5
1. h4 a5 2. h5 a4 3. h6 a3 4. hxg7 axb2 5. Th6 Ta3 6. Tc6 Tf3 7. a4 h5 8. a5 h4 9. a6 h3 10. a7 h2 11. a8=D h1=D 12. Da5 Dh4 13. De5 Dd4 14. Ta5 Th4 15. Sa3 Sh6 16. g8=D b1=D 17. Dgg3 Dbb6 18. Dh2 Da7 19. g4 b5 20. g5 b4 21. g6 b3 22. g7 b2 23. g8=D b1=D 24. Dgg2 Dbb7 25. Lb2 Lg7 26. Da1 Kf8 27. Kd1 Kg8 28. Kc1 Kh7 29. Kb1 Dh8 30. Ka2 Lf8 31. Lc1
play all play one stop play next play all
Reto: This is a case where strategy analysis in Stelvio is in a certain sense optimal: Only 1 strategy remains after analysis, namely the one that belongs to the solution. (2023-04-25)
more ...
comment
Keywords: Unique Proof Game, Symmetrical position, Non-standard material (DDdd), Phoenix, Prenix, Ceriani-Frolkin Theme, Asymmetrical solution, Promotion (DDDddd)
Genre: Retro
Computer test: Computerprüfung: C+ Stelvio 1.11 1 Sekunde. Keine Lösung: BP 29.5, BP 30.0.
FEN: 1nb2b1q/qqpppp1k/2R4n/R3Q3/3q3r/N4r2/K1PPPPQQ/Q1B2BN1
Input: Gerd Wilts, 2000-08-01
Last update: A.Buchanan, 2023-04-26 more...
5 - P1013743
Rudolf Queck
Hans Gruber

4687 feenschach 76 08/11/1985
In memoriam Albert H. Kniest
P1013743
(1+2)
=6*
Zwei Lösungen
Längstzüger
Gitterschach
6x6-Brett
sDU=Grashüpfer
* = Diagrammstellung (Nullsatz)
1) 1. Se3! Ge4 2. Sc2 Gb1 3. Sb4 Gb5 4. Sd5 Ge5 5. Se3 Ge2 6. Sd1=
2) 1. Sc3! Kf2 2. Sb5 Ga6 3. Sd6 Ge6 4. Sf5! Kf3 5. Se3 Ge2 6. Sd1=
play all play one stop play next play all
RQ-Buch: "In der Ausgangsstellung steht Schwarz schon patt. Die erste Lösung läuft konventionell ab mit Rundläufen von Springer und Grashüpfer; in der zweiten Lösung wird wohl sehr überraschend der schwarze König vom einzig denkbaren Pattfeld mit einem kürzestmöglichen Längstzug fortgezwungen - eine Löserhürde!"
SCHRECKE: C+, popeye 4.87 (2021-12-17)
comment
Keywords: Grid Chess, Maximummer, no 8x8 board, Thema Null, Aristocrat, Oneliner, Symmetrical position, Asymmetrical solution
Pieces: du = Grasshopper (G)
Genre: Fairies
FEN: qqqqqqqq/qqqqqqqq/6qq/6qq/6qq/5kqq/4*2q1qq/3N2qq
Reprints: (27) RQu -- 36 Gitterschachaufgaben von Rudolf Queck , p. 35, 1989
Input: Hans Gruber, 2004-05-01
Last update: Alfred Pfeiffer, 2018-11-20 more...
6 - P1017983
Jan Hartong
The Observer 06/1920
3. ehrende Erwähnung
P1017983
(11+3) C+
#2
1. ... Kd6 2. Lg3#
1. ... Kf6 2. Lc3#
1. ... Kf4 2. Sd3#
1. ... Kd4 2. Sf3#
1. La5! Kd6 2. e5#
1. La5! Kf6 2. Lc3#
1. La5! Kf4 2. Lc7#
1. La5! Kd4 2. Sf3#
play all play one stop play next play all
BS Problemid: 2816
Authors: Hartong, Jan
Sources:
Years: 1920
Zugwechsel
A.Buchanan: Star-flights, symmetry breaking, changed mates and for once no en passant! (2022-07-15)
more ...
comment
Keywords: Brian Stephenson Collection (2816), Symmetrical position, Symbol problem (Weihnachtsbaum), Asymmetrical solution
Genre: 2#
Computer test: C+, popeye 4.87
FEN: 4K3/4P3/8/2pPkPp1/2P1P1P1/8/1N2R2N/4B3
Reprints: 87 Kurioses Schach 1975
A11 ASymmetrie 2013
1554 Augsburger Allgemeine 08/12/2018
1108 Scobs lignea 08/12/2018
Input: Brian Stephenson, 2004-08-12
Last update: A.Buchanan, 2022-07-15 more...
7 - P1038093
Manfred Zucker
8304 Schach , p. 326, 07/1977
Problemturnier des DSV der DDR 1977
1. Preis Mehrzüger-Abteilung
Richter: Volker Zipf
P1038093
(4+5)
#4
1. Tbb7! Sd2+ 2. Kg3 Sc4 3. Kxh3 Sa5,S~ 4. Sb6#
1. Tdb7? Sg5+ 2. Kf2 Se6 3. Kxf1 c4!
play all play one stop play next play all
(MZ436)
.
Sally: Schach, Juli 1977. Nationales Problemturnier der DDR,1977,
1. Pr. FIDE - Album 1977 - 1979, Nr, 387.
1. Tdb7? - Sg5+, 2. Kf2 - Se6, 3.Kxf1 - Bc4!
1. Tbb7! -Sd2+, 2. Kg3 - Sc4, 3. Kxh3 - S--, 4. Sb6#.
Diagonal - symmetrische Stellung !
S. 38 Ausgewählte S. Aufgaben (Zucker).
S. 156 Problem S. ( Siehndel).
S. 130 Schwalbe Jun1 2007.
S. 118 S. ohne Partner (Grasemann)
S. 47 S. Report April 1988. (2010-08-21)
Henrik Juel: damaged by duals
1... Sh2+ 2.Kg3,Ke4
1... Sg5+ 2.Kf2,Ke2 (2021-03-12)
comment
Keywords: Brian Stephenson Collection (23043), Symmetrical position, Asymmetrical solution
Genre: n#
FEN: k7/3R4/3p4/1RpN4/8/5K1n/8/5n2
Reprints: 118 Schach ohne Partner für Könner 1982
213 Problemschach [Siehndel] 1984
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2021-03-12 more...
8 - P1038718
Leonard Nicolaas de Jong
624 Good Companions 10/1915
P1038718
(8+5) C+
#2
1. Dd8? Sd6!

1. Db8! Sxa3 2. Lxa3#
1. ... Sb2 2. Kxb2#
1. ... Sd2 2. Kxd2#
1. ... Sxe3 2. Lxe3#
1. ... Sd6 2. Da7#
1. ... Sb6 2. Df8#
play all play one stop play next play all
more ...
comment
Keywords: Brian Stephenson Collection (23669), Symmetrical position, Asymmetrical solution, Zugzwang-Goal, discovered checkmate
Genre: 2#
Computer test: SCHECKE: popeye 4.87
FEN: 8/2Q5/2p5/p1k1p3/P1n1P3/P1K1P3/2R5/2B5
Reprints: 23D The Good Companion Two-Mover 1922
L70 Darnall Magazine 19 14/07/1987
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2024-03-07 more...
9 - P1038755
Thomas R. Dawson
Eskilstuna-Kuriren 1916
P1038755
(7+5)
#2
1. Te1! droht 2. Dc3#
1. ... e3 2. Dc6#
1. ... exf3 2. Te6#
1. ... gxf3 2. Tg6#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.85 (2021-05-16)
comment
Keywords: Brian Stephenson Collection (23707), Symmetrical position, Asymmetrical solution
Genre: 2#
FEN: 5K2/5B2/5k2/5p2/4pPp1/4RQR1/5P2/5r2
Reprints: 50 Bote von der Ybbs 24/10/1930
Input: Brian Stephenson, 2004-08-12
Last update: Mario Richter, 2021-05-16 more...
10 - P1065317
Robert Rupp
Themes-64 1956
P1065317
(9+7)
#3

BS Problemid: 50409
Authors: Rupp, R
Sources:
Years: 1956
SCHRECKE: 1.Kf1! (Zugzwang)
1. ... Ld7,Lc8 2.Ld3 (3.T:e4#) L:f5 3.Sf3#
1. ... Lf7,Lg8 2.Lf3 (3.T:e4#) L:d5 3.Sd3#
1. ... Sb~/Sh~ 2.Lc4/Lg4 (2021-03-03)
comment
Keywords: Brian Stephenson Collection (50409), Symmetrical position, Asymmetrical solution
Genre: 3#
FEN: 8/8/1n1pbp1n/3PkP2/1N2p2N/2P1R1P1/4B3/4K3
Reprints: B43 ASymmetrie 2013
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2021-03-02 more...
11 - P1082681
Jorma Pitkänen
6609 Problemkiste 02/2006
P1082681
(3+4)
s=5
Längstzüger
1. b5 La5 2. b6 Lxd2 3. b7 Lh6 4. b8=D+ Kd4 5. De5+ Kxe5 =
play all play one stop play next play all
Anton Baumann: C+ Alybadix (2022-02-04)
comment
Keywords: Asymmetrical solution, Maximummer
Genre: Fairies
FEN: 7K/8/5n2/4k3/1P6/2b5/1p1P4/8
Input: HBae, 2009-02-06
Last update: HBae, 2009-02-12 more...
12 - P1101705
Franz Ebner
450 Gaudium 100 03/2010
P1101705
(4+3)
#6
1. Th7! droht 2. Th3#
1. ... Ke3 2. Td7 droht 3. Td3#
2. ... f3 3. Td3+ Kf4 4. Td4+ Kg3 5. Sh1+ Kh3,Kh2 6. Th4#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 also (2022-11-20)
comment
Keywords: Asymmetrical solution, Oneliner, Miniature, Symmetrical position, Model mate
Genre: n#
Computer test: Gustav 3.1s Brute Force
FEN: 8/5R2/5B2/5r2/5p2/5k2/5N2/5K2
Input: Frank Müller, 2010-03-27
Last update: Gunter Jordan, 2022-11-20 more...
13 - P1102915
Erich Bartel
772 Diagramme und Figuren 10/02/1965
P1102915
(1+3)
r=2*
Längstzüger
* 1. ... g1=D=
1. Kg3 Ta4,Te8 2. Kh3,Kf3 g1=D=
play all play one stop play next play all
Anton Baumann: C+ Alybadix (2023-02-28)
more ...
comment
Keywords: Maximummer, Rex solus (w), Symmetrical constellation, Asymmetrical solution
Genre: Fairies
FEN: 8/8/8/5k2/4r3/7K/6p1/8
Reprints: 835 Diagramme und Figuren 01/03/1965
242 Das Patt im Wenigsteiner 1978
Input: Erich Bartel, 2010-04-09
Last update: Erich Bartel, 2018-01-03 more...
14 - P1106441
Manfred Zucker
31 Levelezesi Sakkhirado 10/1980
P1106441
(2+2) C+
h#3*
* 1. ... Kc3 2. Ka6 Kc4 3. Ka5 Ta3#
1. Ka7 Kc3 2. Ka6 Kc4 3. Ka5 Ta3#
play all play one stop play next play all
(MZ515)

"Fernschach-Nachrichen"
.
Felber, Volker: steingetreuer Nachläufer unter P0573457 mit der Bedingung "Duplex" (2021-03-18)
comment
Keywords: Aristocrat, Minimal, Miniature, Symmetrical position, Asymmetrical solution, Oneliner
Genre: h#
Computer test: Popeye Windows-32Bit v4.51 (100000 KB)
FEN: 8/1k6/1r6/8/8/1R6/1K6/8
Reprints: A Feladvany 1980
1852 Ideal-Mate Encyclopedia Vol.1 1999
Input: hpr, 2010-05-30
Last update: Felber, Volker, 2021-03-18 more...
15 - P1124575
Bernhard Walter
Hilmar Ebert

11 Rochade Europa , p. 44, 03/1995
Garri Kasparow gewidmet
P1124575
(3+1)
#13
1. Kc3 Kc1 2. Lg3 Kd1 3. Kd3 Kc1 4. Le5 Kd1 5. Lc3 Kc1 6. Sa3 Kd1 7. Sc4 Kc1 8. Ld2+ Kb1 9. Kc3 Ka2 10. Kc2 Ka1 11. Kb3 Kb1 12. Sa3+ Ka1 13. Lc3#
play all play one stop play next play all
LsS ASb13
Anton Baumann: C+ Gustav 4.1d (2020-12-05)
comment
Keywords: Miniature Collection (0070348), Rex solus (s), Aristocrat, Symmetrical position, Asymmetrical solution
Genre: n#
FEN: 1B6/8/8/1N6/1K6/8/8/1k6
Reprints: C87 ASymmetrie 2013
Input: Felber, Volker, 2010-09-11
Last update: Alfred Pfeiffer, 2013-06-20 more...
16 - P1126540
Otto Ibenfeldt
Magasinet for alle 1944
P1126540
(4+1)
#3
1. La4 Kxa4 2. Kc5 Ka5 3. Ta8#
1. ... Kc4 2. Td8 Kb4 3. Td4#
play all play one stop play next play all
LO-K-T ASb3 m
SCHRECKE: C+, popeye 4.87 (2023-07-17)
comment
Keywords: Miniature Collection (0291414), Symmetrical position, Asymmetrical solution, Oneliner, Rex solus (s), Flight giving sacrifice key
Genre: 3#
FEN: 1R6/8/1K6/1B6/1k6/8/1P6/8
Reprints: B33 ASymmetrie 2013
Input: Felber, Volker, 2010-09-11
Last update: Gunter Jordan, 2023-07-17 more...
17 - P1127437
Nikolay S. Zinovyev
11132 Ideal-Mate Review 79 07/2000
ehrende Erwähnung
PR Eugene Albert
P1127437
(4+2)
#8
1. Se3 exf3 2. Tf2 Kg1 3. Sg4 Kh1 4. Kc6 Kg1 5. Kd5 Kh1 6. Ke4 Kg1 7. Kxf3 Kh1 8. Tf1#
play all play one stop play next play all
T12d IM AS-B8
Henrik Juel: C+ Popeye 4.61 (2024-02-29)
comment
Keywords: Miniature Collection (0328461), Minimal (b), Miniature, Flight taking, Oneliner, Symmetrical position, Asymmetrical solution, Ideal mate, Corner mate
Genre: n#
FEN: 8/1K6/8/3N4/4p3/5P2/6R1/7k
Input: Zuncke/Bruder, 2010-09-11
Last update: Gunter Jordan, 2024-02-29 more...
18 - P1130189
C. Appel
1221 Ideal-Mate Review 15 05/1985
P1130189
(5+1)
#4
1. Le3 Kb4 2. Kb2 Ka5 3. Lb5 Kb4 4. Sec6#
play all play one stop play next play all
S3b ASc4 IM
SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-09-05)
comment
Keywords: Miniature Collection (0328000), Rex solus (s), Symmetrical position, Asymmetrical solution
Genre: n#
FEN: 8/N3N3/2B5/8/2k5/8/2K5/2B5
Reprints: C74 ASymmetrie 2013
Input: Zuncke/Bruder, 2010-09-11
Last update: Alfred Pfeiffer, 2013-06-20 more...
19 - P1131127
Bengt Rudolf Giöbel
147 Svenska Dagbladet 28/10/1923
P1131127
(3+3)
#2
1. Dh3! (Zugzwang)
1. ... Sd1,Sb2~ 2. Dd3#
1. ... f1=D,f1=T,f1=L 2. De3#
1. ... f1=S 2. Dg2#
play all play one stop play next play all
B7b2DD0 AS-2
SCHRECKE: C+, popeye 4.85 (2021-05-16)
Teppo Mänttä: Reprints. Fröberg/Hultberg: "Svenska Miniatyrer i urval" (Uppsala/Copenhagen) 1978 and
Giöbel: "Problem och profiler" (Uppsala) 1984. (2021-09-18)
comment
Keywords: Miniature Collection (0011687), Oneliner, Symmetrical position, Asymmetrical solution, Miniature
Genre: 2#
FEN: 8/8/8/8/8/8/1nKBkpQ1/8
Reprints: 17 Bote von der Ybbs 07/02/1930
75 Kurioses Schach 1975
A12 ASymmetrie 2013
Input: Felber, Volker, 2010-09-11
Last update: Mario Richter, 2021-05-16 more...
20 - P1139236
Gunter Jordan
69 Die Schwalbe 238, p. 193, 08/2009
Klaus-Peter-Zuncke-Gedenkturnier
3. Preis
PR Martin Minski
P1139236
(4+3)
#4
2.1...
1. Ld5-f7+!
1. Ld5-c6+!
play all play one stop play next play all
Gunter Jordan: Preisrichter Martin Minski: "„Gedenkkreuz“ mit thematischer Doppelsetzung in Zweispännerform und das als Miniatur! Die thematische Verführung 1.Le6+? Ke4 2.Tf7 Kf3 3.Ld5+ Kg4 4.Tg7+ Kh~ scheitert daran, dass der sK auf der rechten Seite zu viel Platz besitzt. Deshalb besser: 1.Lc6+! Kc4 2.Tb7 (droht 3.Txb5 nebst 4.Tb4#) Kb3 3.Ld5+ Ka4 4.Ta7# mit Mustermatt. Die zweite asymmetrische Lösung lautet: 1.Lf7+ Ke4 2.Ke2 b4 3.Lh5 (droht 4.Lf3#) f4 4.Lg6#. Dieser Läufertanz ist auf der linken Seite aus Platzgründen nicht möglich: 1.Lb7? Kc4 2.Kc2 f4 3.L?." (2012-03-17)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-01)
comment
Keywords: Miniature Collection (0356029), Symmetrical position, Asymmetrical solution, Miniature, Checking key, Symbol problem (Kreuz)
Genre: n#
FEN: 8/3R4/8/1p1B1p2/3k4/3N4/3K4/8
Reprints: C108 ASymmetrie 2013
Input: Felber, Volker, 2010-09-11
Last update: Gunter Jordan, 2023-01-10 more...
21 - P1141367
Frank Fiedler
Schwalbe-Tagung 1996
P1141367
(4+1)
#4
1. Sc5+ Kc6 2. Kc4 Kb6 3. Lb8 Ka5,Kc6 4. Lc7,Td6#
1. ... Ke8,Kd8,Kc8 2. Tf5 ... 3. Tf8#
play all play one stop play next play all
ASd4 A10TL1
SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-06-02)
comment
Keywords: Miniature Collection (0075796), Symmetrical position, Asymmetrical solution, Rex solus (s), Aristocrat, Oneliner
Genre: n#
FEN: 8/3k4/3B4/3R4/3K4/3N4/8/8
Input: Felber, Volker, 2010-09-11
Last update: Alfred Pfeiffer, 2014-03-26 more...
22 - P1144237
Mrs. W. J. Baird
492 The Chess Amateur 04/1924
P1144237
(5+1)
#3
1. Sf2 Kf4 2. Tc3 Kf5 3. Tf3#
play all play one stop play next play all
T12T AS/3

Sally (2018-12-27): Asymmetrie : der zur (hier: schrägen) Symmetrieachse analoge Zug des [Sh7] (das wäre 1. [Si5]) ist wegen Brettüberschreitung nicht möglich.

in der Miniature Collection auch gespiegelt (wKd2-sKf4 als (0049342)
SCHRECKE: C+, popeye 4.85 (2021-05-16)
comment
Keywords: Miniature Collection (0329456), Symmetrical position, Asymmetrical solution, Rex solus (s), Aristocrat, Miniature
Genre: 3#
FEN: 2R5/3K3N/4R3/5k2/8/3N4/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Mario Richter, 2021-05-16 more...
23 - P1146491
Jan Knöppel
Springaren 08/1950
P1146491
(6+1)
#3
1. 0-0 Kxe7 2. Sb7 Ke8 3. Tbe1#
play all play one stop play next play all
E2-b3 ASd3
SCHRECKE: C+, popeye 4.87 (2021-12-28)
comment
Keywords: Miniature Collection (0051782), Rex solus (s), Symmetrical position, Asymmetrical solution, Castling, Castling key
Genre: 3#
FEN: 3NkN2/4P3/8/8/8/8/8/1R2K2R
Reprints: B38 ASymmetrie 2013
Input: Felber, Volker, 2010-09-11
Last update: Gunter Jordan, 2021-12-28 more...
24 - P1149063
Leonard Nicolaas de Jong
4487 Tijdschrift van den NSB 04/1926
P1149063
(3+2)
#2
1. Lc7!
play all play one stop play next play all
F4LS ASd2
vf: 180°, Sergei Radtschenko, 20.07.1993, Temp-64;
a1<>a8, Gerhard Latzel, 01.09.1931, Deutsche Schachblätter;
a1<>h1, Tibor Schöneberger, 10.1925, Magyar Sakkvilag
Henrik Juel: some duals (2024-03-08)
comment
Keywords: Miniature Collection (0292408), Asymmetrical solution, Aristocrat, Minimal (b), Miniature
Genre: 2#
FEN: 8/8/8/4B3/4n3/4K3/4B3/4k3
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2024-03-07 more...
25 - P1152027
August Jensen
246 Springaren 36 03/1989
P1152027
(6+1)
#3
1. Sa4 Ka1 2. Sc2+ Ka2 3. Tb2#
play all play one stop play next play all
T22S AS/3 m
SCHRECKE: C+, popeye 4.87 (2022-12-08)
comment
Keywords: Miniature Collection (0324724), Symmetrical position, Asymmetrical solution
Genre: 3#
FEN: 8/8/4K3/1PN5/3N4/1R1P4/k7/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-12-08 more...
26 - P1152130
Manfred Zucker
10511 Die Schwalbe 274, p. 55, 06/1956
P1152130
(4+3) C+
#4
1. Tc1 Lc7 2. Tg1 Lg3 3. Tg2 Lb8,L~ 4. Tg8#
play all play one stop play next play all

Duplicate Diagram: P1258715

(MZ1254)

vf: Franck Larose, 04.1987, Europe Echecs = P1258715
.
Stefan Felber: Steingetreuer Vorläufer von W. Pauly (PDB 1149266) (2015-11-30)
Henrik Juel: C+ Popeye 4.61 (2021-02-22)
Henrik Juel: The symmetric try fails by board asymmetry:
1.Tg1 Lg7 2.Tc1 Lc3 3.Tc2 La5! 4.Tc8+ Ld8 (2021-02-22)
comment
Keywords: Miniature Collection (0292510), Oneliner, Symmetrical position, Asymmetrical solution, Miniature
Genre: n#
FEN: 4k3/4B3/4K3/4b3/8/4p3/4P3/4R3
Input: Felber, Volker, 2010-09-12
Last update: Felber, Volker, 2021-05-02 more...
27 - P1152324
Klaus-Peter Zuncke
3066 Land og Folk 02/09/1978
P1152324
(3+2) C+
#3
1. Tf7? La5!

1. Td7! droht 2. Te7+ Kd8 3. Tf8#
1. ... Lb4 2. Txb4 Kf8 3. Tb8#
1. ... Lh4 2. Txh4 Kf8 3. Th8#
play all play one stop play next play all
ASd3
Dieter Berlin: Der Nachdruck 'Sächsische Zeitung' bezieht sich auf das Heft 'Preisbericht Informalturnier 1982',
die Aufgabe findet man auf S. 32 im Anhang. (2022-10-28)
more ...
comment
Keywords: Miniature Collection (0338445), Aristocrat, Symmetrical position, Asymmetrical solution, Minimal, Miniature
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 4k3/8/4K3/8/3R1R2/8/8/4b3
Reprints: 6 Sächsische Zeitung , p. 32, 1982
C112A ASymmetrie 2013
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2022-10-29 more...
28 - P1154084
Klaus-Peter Zuncke
2358 Freie Presse (Chemnitz) 07/05/1982
2. Preis
P1154084
(4+3)
#7
1. Lc7 Kf6 2. Ld8+ Kg6 3. Tbg5+ Dxg5 4. Txg5+ Kh6 5. Kf7 e3 6. Tg4 Kh5 7. Th4#
play all play one stop play next play all
ASd7
Henrik Juel: late dual 2... Kg7 3.Tbg5+ Dxg5 4.Txg5+ Kh7 5.Kf7,Tg4 (2022-08-29)
comment
Keywords: Miniature Collection (0292553), Symmetrical position, Asymmetrical solution, Symbol problem (Kreuz)
Genre: n#
FEN: 4K3/8/4k3/1R2B2R/4p3/4q3/8/8
Reprints: C68 ASymmetrie 2013
Input: Felber, Volker, 2010-09-12
Last update: Gunter Jordan, 2022-08-29 more...
29 - P1157291
Werner Speckmann
Schach-Echo 1941
P1157291
(4+3) cooked
#2
a) Diagramm
b) nach Schlüsselzug von a)
a) 1. Kg4
b) 1. Kg5
play all play one stop play next play all
Cook: b) 1. Kh6
1. Kf6
B12S ASc2
vf: a1<>h1, Speckmann, 1943, Schach-Echo sowie a1<>a8, John A. White, 1879, Canadian Illustrated News (P1160494)

'Elementary Electronics': "This pyramid-shaped problem has a sort of pinwheel solution and was created by Dr. Werner Speckmann, Germany, a well-known composer and collector of two movers."
milan: alles nach links 1.Kb4 1.Kb5 +set play h#2 change kings 1.Kb4 Lb3 2.Ka3 Sec2# M.Frelih (2023-03-30)
comment
Keywords: Miniature Collection (0024111), anticipated (P1160494), Symmetrical position, Asymmetrical solution, Aristocrat, Miniature
Genre: 2#
FEN: 8/8/8/8/8/5K2/4nBn1/3N1k1N
Reprints: 25 Elementary Electronics 07-08/1970
79 Kurioses Schach 1975
A3A ASymmetrie 2013
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2023-03-11 more...
30 - P1158239
Frank W. Martindale
29 Detroit Free Press 13/01/1876
P1158239
(3+3)
#3
1. Le1 Kg5 2. Dh7 Ld8 3. Lh4#
1. ... Ke5 2. Dd7 Lh8 3. Lc3#
play all play one stop play next play all
L10 ASc3
Frank Müller: Im Original stehen die Steine in der c-Linie !! (2016-01-23)
SCHRECKE: C+, popeye 4.85 (2021-05-19)
comment
Keywords: Miniature Collection (0321725), Oneliner, Symmetrical position, Asymmetrical solution
Genre: 3#
FEN: 8/5Q2/5b2/5k2/5p2/5K2/5B2/8
Reprints: B4 ASymmetrie 2013
Input: Zuncke/Bruder, 2010-09-12
Last update: Alfred Pfeiffer, 2016-01-23 more...
31 - P1160231
August Jensen
252 Springaren 37 06/1989
P1160231
(3+1)
#2
1. Ke6? ... Kg8!;
1. Kg6? ... Ke8!;
1. Dc7! (Zugzwang) ... Ke8/Kg8 2. De7/Dg7
play all play one stop play next play all
A12DD4 ASc2 mm
SCHRECKE: C+, popeye 4.87 (2022-12-08)
comment
Keywords: Miniature Collection (0247216), Symmetrical position, Asymmetrical solution
Genre: 2#
FEN: 5k2/8/5P2/5K2/5Q2/8/8/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-12-08 more...
32 - P1162270
Moisey S. Rosenthal
694 Freie Presse (Chemnitz) 28/04/1967
P1162270
(3+3)
#2*
* 1. ... Se4 2. Dh3#
* 1. ... Sg4 2. Dd3#

1. De2? droht 2. De6#
1. ... Se4 2. Di2#???

1. Dg2! droht 2. Dg6#
1. ... f3 2. Dxf3#
1. ... Sg4 2. Dc2#
play all play one stop play next play all
ASc2
a1=a2, P. Wetzel, 1971, La Cle = P1163220
SCHRECKE: C+, popeye 4.87 (2023-03-09)
comment
Keywords: Miniature Collection (0025905), Symmetrical position, Asymmetrical solution, Oneliner
Genre: 2#
FEN: 8/5K2/5B2/5k2/5p2/5Q2/5n2/8
Reprints: A30 ASymmetrie 2013
Input: Felber, Volker, 2010-09-12
Last update: Felber, Volker, 2014-05-16 more...
33 - P1165393
Werner Speckmann
The Chess Review 1939
1. ehrende Erwähnung
5. Int. Miniaturenturnier
P1165393
(4+2) C+
#3
1. Th8! g6 2. Sh6 Kh5 3. Sf7#
1. ... Kg6 2. Se7+ Kg5 3. Tf5#
play all play one stop play next play all
ASb3 SA2
vf: Nguyen VoVan, 1991, La Hoja de Ajedrez;
diese Aufgabe geistert auch als M. Vyordmann herum. Das ist aber Speckmann, siehe DSZ 03.1965, S. 108
more ...
comment
Keywords: Miniature Collection (0059034), Symmetrical position, Asymmetrical solution, Minimal, Miniature, Indian
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 6N1/6p1/8/6k1/8/5RKR/8/8
Reprints: Deutsche Schachzeitung 3, p. 108, 03/1965
1142 Beispiele zur Ideengeschichte des Schachproblems , p. 232, 1982
B30 ASymmetrie 2013
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-05-05 more...
34 - P1167069
Herbert Hultberg
9313 Tidskrift för Schack 11/1947
P1167069
(3+2) C+
#3
1. Th6! gxh6+ 2. Kxh6 Kh8 3. Tf8#
1. ... g6 2. Txg6+ Kh8 3. Th1#
play all play one stop play next play all
E7d3 ASb3 mm
vf: Tuma, 01.02.1986, Pruboj;
Eligiusz Zimmer, 09.2000, Rochade Europa
more ...
comment
Keywords: Miniature Collection (0059680), Symmetrical position, Asymmetrical solution, Minimal, Miniature, Sacrifice key (T)
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 6k1/6p1/8/6K1/8/8/8/5R1R
Reprints: B26A ASymmetrie 2013
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-01-08 more...
35 - P1167540
August Jensen
297 Springaren 40 03/1990
P1167540
(3+4)
#3
1. Sh4
play all play one stop play next play all
ASb3 SfS m
Henrik Juel: C+ Popeye 4.61 (except for double mate threat) (2022-12-08)
Henrik Juel: 1.Sh4 thr. 2.Sh5 thr. 3.Sxh6,Se7# (2022-12-08)
comment
Keywords: Miniature Collection (0324736), Symmetrical position, Asymmetrical solution
Genre: 3#
FEN: 6k1/6P1/5pKp/8/8/8/6N1/6b1
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-12-08 more...
36 - P1181239
Thomas R. Dawson
The Chess Amateur 12/1923
Asymmetrie-Turnier 1924
1. Preis
P1181239
(15+10) C+
s#5
1. gxf6ep+ Kxe8 2. Dg6+ hxg6 3. cxd8=S ... 4. f7+ Ke7 5. Sxg6+ Sxg6#
play all play one stop play next play all
Schwarz hat zuletzt f7-f5 gezogen, da d7-d5 an der retrograden Einsperrung des Lc8 scheitert.
Henrik Juel: C+ Popeye 4.61 after analysis
Analysis
White is missing one man, so last move was not a pawn capture
White pawns captured all six missing black men, so last move was not d7-d5
Obviously last move was not made by Ke7 or Sd8f8, so last move was f7-f5 legitimizing the ep key (2020-11-02)
comment
Keywords: Asymmetrical solution, En passant as key, Symmetrical position, Promotion (S)
Genre: Retro, s#
Computer test: C+ Popeye 4.61 after analysis
FEN: 1NRnBnRN/1pP1k1Pp/4p3/2PpKpP1/2pPQPp1/8/2P3P1/8
Reprints: 87 Asymmetry 1927
199 Mat Plus Review 01-06/2010
H2 ASymmetrie 2013
Input: Frank Müller, 2010-11-25
Last update: A.Buchanan, 2020-11-03 more...
37 - P1188453
Jan A. Rusek
544 Schachmatt 03/09/1947
P1188453
(6+4) C+
s#5
1. Kh8! h6,f6 2. g8=L f6,h6 3. Txh6+ Kxh6 4. Txf6+ Lxf6+ 5. Dg7+ Lxg7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-11-13)
comment
Keywords: Asymmetrical solution, Symmetrical position
Genre: s#
FEN: 6K1/5pPp/6k1/5RbR/6Q1/6N1/8/8
Reprints: F21 ASymmetrie 2013
Input: Frank Müller, 2011-02-27
Last update: Marcin Banaszek, 2021-11-17 more...
38 - P1198917
Franz Ebner
482 Gaudium 102 08/2010
P1198917
(3+9)
#10
1. Lc5+! Sd4+ 2. Dxd4+ Ke2! 3. Dxe4+ Kf1 4. Dxd3+ Ke1 5. De3+ Kd1 6. Dxf3+ Ke1 7. Lxf2+ Kf1 8. Le3+ Ke1 9. Df2+ Kd1 10. Dxd2#
2. ... Kf4? 3. De5+ Kg4 4. Lxf2 nebst matt
play all play one stop play next play all
"Symmetrische Glocke mit asymmetrischer Lösung." [PH] Nach 1.Lg5+? Sf4+ 2.Dxf4+ Kd4 3.De5+ Kc4 4.Lxd2 Kb3! entkommt der sK. Als "reichlich Schachorgelei" empfand dies Eberhard Schulze. Ja, aber die Eindeutigkeit ist hier erstaunlich! (Lösungsbesprechung)
Anton Baumann: C+ Gustav 4.1d (2021-01-13)
comment
Keywords: Asymmetrical solution, Symbol problem, Symmetrical position, Checking key, Perpetual check
FEN: 8/4B3/4K3/4Q3/4p3/3pkp2/2ppnpp1/8
Input: Gunter Jordan, 2011-07-04
Last update: Gunter Jordan, 2021-07-14 more...
39 - P1204422
Anatoli G. Jepifanow
14639 Ideal-Mate Review 01-03/2005
P1204422
(3+1)
h#3
Vertikalzylinder
1. Ke6 Sd4+ 2. Kf7 Se6 3. Kg8 Sh6#
play all play one stop play next play all
paul: checked by Jacobi (2021-10-16)
more ...
comment
Keywords: Indian, Vertical Cylinder, Aristocrat, Miniature, Symmetrical position, Asymmetrical solution
Genre: Fairies
FEN: K7/1N6/2N5/3k4/8/8/8/8
Input: Hans Gruber, 2011-10-09
Last update: Alfred Pfeiffer, 2021-10-19 more...
40 - P1214335
Jan A. Rusek
1837 Springaren 02/1953
P1214335
(5+3) C+
s#4
1. Sd6! b5 2. Tc4 bxc4 3. Ta1 c3 4. Lc1 c2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-12-06)
comment
Keywords: Asymmetrical solution, Symmetrical position
Genre: s#
FEN: 8/1N6/1p6/8/1p6/1k6/RBR5/1K6
Input: Frank Müller, 2011-10-11
Last update: Marcin Banaszek, 2021-12-14 more...
41 - P1229697
Jan Hartong
Bulletin Ouvrier des Echecs 12/1948
2. Lob im Zwillingsturnier
P1229697
(4+3)
#2
a) Diagramm
b) alles eine Spalte nach rechts
a) 1. Dh4! droht 2. Dh8#
1. ... d6,d5 2. Da4#
1. ... f6,f5 2. Dh5#

b) 1. Da1! droht 2. Da8#
1. ... e6,e5 2. Da3#
1. ... g6,g5 2. Dh8#
play all play one stop play next play all

Duplicate Diagram: P1148644, P1148644

a) vollständig vorweggenommen durch P1148644
SCHRECKE: a)+b): C+, popeye 4.87
Die FEN ist Stellung b) (2022-09-21)
comment
Keywords: Symmetrical position, anticipated (P1148644), Asymmetrical solution, Miniature
Genre: 2#
FEN: 5k2/4pPp1/8/8/8/5R2/5K2/5Q2
Reprints: FIDE Album 1945-1955 1964
71,72 Kurioses Schach 1975
2 El Ajedrez (revista técnica de ajedrez) 0 11/1979
A27 ASymmetrie 2013
Input: Mario Richter, 2012-01-07
Last update: Mario Richter, 2022-09-20 more...
42 - P1239714
Frank Fiedler
4621 Freie Presse (Chemnitz) 14/12/2007
Den Schachfreunden vom HSV Eintracht Seiffen und den das Schach sponsorenden Seiffener Handwerkskünstlern gewidmet.
P1239714
(5+2)
#5
1. Sa3! Kd2 2. Scxe2 Kd1 3. Kd3 Ke1 4. Sc2+ Kd1 5. Sf2#
2. ... Ke1 3. Ke3 Kd1 4. Sf2+ Ke1 5. Sc2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-06-09)
comment
Keywords: Obvious promotion, Symmetrical position, Symbol problem (Schwibbogen), Asymmetrical solution
Genre: n#
FEN: 8/8/8/8/4K3/2N3N1/4p3/1N2k2N
Input: Felber, Volker, 2012-05-26
Last update: Alfred Pfeiffer, 2017-08-02 more...
43 - P1240448
Jorma Pitkänen
Ilta-Sanomat 1997
Dem Match Kasparow-Deep Blue gewidmet
P1240448
(15+4) C+
s#4
1. Dh2 exf6 2. Tg6 hxg6 3. Dh3+ f5+ 4. Dxf5+ gxf5#
1. Dh2 exd6 2. Tc6 bxc6 3. Da2+ d5+ 4. Dxd5+ cxd5#
play all play one stop play next play all
Spätere Versionen siehe P1240450, P1240451, P1240452 und P1240453.
Walter Lindenthal: Illegal (letzer s Zug?) (2023-08-28)
SCHRECKE: Der sK kann zuletzt von d7 oder f7 gekommen sein. (2023-08-28)
Gerald Ettl: So nebenbei habe ich mich gefragt, was die Widmung mit dem s# zu tun hat. Wenn es wenigstens eine Studie gewesen waere haette ich die Widmung einigermassen verstanden. Aber so? (2023-08-29)
comment
Keywords: Asymmetrical solution, Symmetrical position, Obvious promotion
Genre: s#
Computer test: Popeye WINDOWS-32Bit-Version 3. 73 (2048 KB)
FEN: 4B3/1p2p2p/1P1PkP1P/4P3/3BKB2/3NPN2/4Q3/2R3R1
Reprints: A harmonie 108, p. 2011, 12/2011
F38 ASymmetrie 2013
Input: Frank Müller, 2012-06-02
Last update: Alfred Pfeiffer, 2013-06-28 more...
44 - P1240452
Jorma Pitkänen
Ilta-Sanomat 1997
Version Bernd Schwarzkopf 2012
P1240452
(15+4) C+
s#4
1. Sd6 exd6 2. Tc6 bxc6 3. Da2+ d5+ 4. Dxd5+ cxd5#
play all play one stop play next play all
Urversion siehe P1240448.
Walter Lindenthal: Illegal (letzer s Zug?) (2023-08-28)
SCHRECKE: Der sK kann zuletzt von d7 oder f7 gekommen sein. (2023-08-28)
comment
Keywords: Asymmetrical solution, Symmetrical position
Genre: s#
Computer test: Popeye WINDOWS-32Bit V4.37 (379720 KB)
FEN: 2N1B1N1/1p2p2p/1P2k2P/4P3/3PKP2/3PPP2/4Q3/2R3R1
Reprints: D harmonie 109, p. 211, 05/2012
Input: Frank Müller, 2012-06-02
Last update: Frank Müller, 2012-06-02 more...
45 - P1243966
Frank Richter
1107 The Ural's Problemist 10-12/2011
3. ehrende Erwähnung
P1243966
(11+3) C+
s#11
1. Sf4 exf4 2. gxf4 e5 3. f5 Kf4 4. Tg6 Ke3 5. Ta6 Kf4 6. Ta1 Ke3 7. Td1 Kf4 8. Tg4+ Ke3 9. f4 exf4 10. Lg2 f3 11. Lf1 f2#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (2022-01-19)
comment
Keywords: Asymmetrical solution, Stalemate dissolution, Symmetrical position
Genre: s#
FEN: 8/8/3RpR2/4p3/1P2B2P/2PPkPP1/4N3/4K3
Input: Frank Müller, 2012-07-05
Last update: Marcin Banaszek, 2022-01-27 more...
46 - P1256398
Arnold Beine
15063 Die Schwalbe 252 12/2011
Martin Minski und Michael Schlosser gewidmet
P1256398
(4+2)
h#14
b) alles ein Feld nach rechts (a1 = b1)
Doppellängstzüger; KöKo; Circe Rex incl.
a) 1. Nf3 Kf6 2. Nb5 g6 3. Nf7 Ke7 4. Nb5 Kd6 5. Nf3 Kd5 6. Nb5 Ke6 7. Nf7 gxf7[+sNf1] 8. Nxe3[+wBe2] Kf5 9. Nf1 e4 10. Nd5 Ke6 11. Ne7 Kd7 12. Nd5 Ke8 13. Nb4 f8=D 14. Nf6 Dd6#
b) 1. Ne3 Ke6 2. Nxd5[+wBd2] d4 3. Nf6 Kf7 4. Ng4 fxg4[+sNg1] 5. Ne5 gxf5[+sKe8] 6. Ng6 hxg6[+sNg1] 7. Ne5 Ke6 8. Nf7 gxf7[+sNf1] 9. Nd5 Kd7+ 10. Kf8 Ke8 11. Nf4 f6 12. Nd8 Kd7 13. Nc6 Ke8 14. Ng8 fxg8=D[+sNg1]#
play all play one stop play next play all
sSU ,= ,Nachtreiter
SCHRECKE: a)+b): C+, popeye 4.87 (2022-12-18)
comment
Keywords: Circe, Köko, Maximummer (Doppel-), Symmetrical position, Asymmetrical solution
Pieces: su = Nightrider (N)
Genre: Fairies
FEN: 8/4K3/8/2P1k1P1/8/4P3/8/4*2n3
Input: Gerd Wilts, 2012-12-13
Last update: Arnold Beine, 2022-12-18 more...
47 - P1268545
Herbert Hultberg
Springaren 12/1991
P1268545
(6+11) C+
s#3
1. b7? Sc7 2. b8=T Sa6!

1. h7! Sg7! 2. h8=T Sh5 3. Txh5 f3#
play all play one stop play next play all
more ...
comment
Keywords: Asymmetrical solution, Grab, Symmetrical position, under-promotion (wT), Pawn mate
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 4n3/8/1P1ppp1P/3prp2/3pkp2/4p3/4K3/3NRN2
Reprints: F34 ASymmetrie 2013
Input: Frank Müller, 2013-04-26
Last update: Dieter Berlin, 2024-02-26 more...
48 - P1271907
Torsten Linss
F50 ASymmetrie 2013
P1271907
(5+2) C+
s#10
1. Lb3+ Kc6 2. Dd5+ Kb6 3. Le3+ Ka6 4. Dc6+ Ka5 5. Dc5+ Ka6 6. Lc4+ Kb7 7. Da7+ Kc6 8. Td6+ Kxd6 9. De7+ Kc6+ 10. Dd7+ Dxd7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-12)
comment
Keywords: Aristocrat, Asymmetrical solution, Oneliner, Symmetrical position
Genre: s#
FEN: 3K4/8/3k4/3B4/3Q4/3R4/3B4/3q4
Input: Frank Müller, 2013-06-05
Last update: Marcin Banaszek, 2020-10-12 more...
49 - P1273567
Martin Minski
G35A ASymmetrie 2013
P1273567
(3+5)
h=3
1. Dh1! g8=T 2. Kg1 Tf8 3. g2 Txf2=
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2021-11-17)
comment
Keywords: Symmetrical position, Asymmetrical solution
Genre: Fairies
FEN: 8/6P1/6K1/8/6N1/6p1/5pkp/6q1
Input: Alfred Pfeiffer, 2013-06-29
Last update: Alfred Pfeiffer, 2014-11-07 more...
50 - P1291919
Walter Schlüter
Aachener Anzeiger 1928
Dr. Lasker zum 60. Geburtstag gewidmet
P1291919
(8+8) C+
s#4
1. Txe3+! dxe3 2. Lxc3 d4 3. Lh2 dxc3 4. Le5 e2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-12-24)
comment
Keywords: Symmetrical position, Asymmetrical solution
Genre: s#
FEN: 8/8/3N4/p2p2p1/P2p2P1/R1pkp1R1/3p4/B2K2B1
Reprints: 7c Allgemeine Zeitung Chemnitz 06/01/1929
1478 Allgemeine Zeitung Chemnitz 25/03/1934
Input: Felber, Volker, 2014-12-03
Last update: Marcin Banaszek, 2021-12-30 more...
51 - P1320829
Wolfgang Pauly

P1320829
(3+4) C+
h#3
b) sBe6 nach e4
a) 1. Kd3 Ld6 2. Kc2 Lg6+ 3. Kc1 La3#
b) 1. Kf3 Lg3 2. Kg4 Kf2 3. Kh3 Ld7#
play all play one stop play next play all
Quelle unbekannt (v), Komponiert 1932. Das Original war um 180 Grad gedreht und benötigte zwei zusätzliche sBB.
Felber, Volker: vergleiche P1001738 und P1001739 (2016-06-01)
Yuri Bilokin: Version: -bPe6 4B3/8/8/1p2B2p/8/4k3/8/4K3 (3+3) h#3 2.1... 1.Kd3 Bd6 2.Kc2 Bg6+ 3.Kc1 Ba3# (MM)
1.Kf3 Bg3 2.Kg4 Kf2 3.Kh3 Bd7# (MM)
Asymmetry, BK moves only × 2, Exchange of functions (wBe5/wBe8, Guard / Mate) (2021-11-16)
more ...
comment
Keywords: Model mate, Symmetrical position, Asymmetrical solution
Genre: h#
FEN: 4B3/8/4p3/1p2B2p/8/4k3/8/4K3
Reprints: E13 ASymmetrie , p. 305, 2013
32 idee & form 128, p. 4311, 10/2015
Input: Felber, Volker, 2016-06-01
Last update: Alfred Pfeiffer, 2016-06-02 more...
52 - P1326818
Anton Baumann
3830 idee & form 131, p. 4416, 07/2016
P1326818
(4+2)
s=13
1. Tg3+! Kh7 2. Df7+ Kh6 3. Th3+ Kg5 4. Dh5+ Kf4 5. Tf3+ Ke4 6. Df5+ Kxd4 7. Td3+ Kc4 8. Dd5+ Kb4 9. Td4+ Ka3 10. Db7 c2 11. Td3+ Ka4 12. Ta3+ Kxa3 13. Db3+ Kxb3=
play all play one stop play next play all
Anton Baumann: symmetrischer Versuch:
1.Tc7+? Kg8 2.Dg6+ Kf8 3.Tc8+ Ke7 4.De8+ Kd6 5.Tc6+ Kd5 6.De6+ Kxd4 7.Td6 Kc5 8.Td5+ Kb4(Kc4) 9.De4+ Ka3? 10.Ta5+ Kb3 11.Ta3+ Kxa3 12.Dc4 c2 13.Db3+ Kxb3=
aber 9. ... Kb3! 10.Tb5+ Ka3 11.Ta5+ Kb3 12.Ta3+ ist zu langsam
C+ Gustav 4.2a (2023-05-23)
comment
Keywords: Oneliner, Symmetrical position, Asymmetrical solution
Genre: Fairies
FEN: 7k/6R1/5Q2/8/3B4/2p5/8/K7
Input: Felber, Volker, 2016-10-22
Last update: Felber, Volker, 2016-10-22 more...
53 - P1339905
Teppo Mänttä
Suomen Tehtäväniekat 163 05/2005
in memoriam J. Hannelius
P1339905
(2+5) C+
s#8
Circe
Längstzüger
wDU,sDU=Grashüpfer
sSU=Nachtreiter
1. Kc7! Nh3 2. Gd7 Nb6 3. Kd6 Nh3+ 4. Kxc6[+sGc1] Nb6+ 5. Kxb6 Ge8 6. Ka7 Gc6 7. Kb8 Gc7 8. Gb7 Gd6#
play all play one stop play next play all
Teppo Mänttä: Rundlauf Kb8-c7-d6xc6xb6-a7-b8. Switchback Gb7-d7-b7. (2021-04-24)
comment
Keywords: Circe, Maximummer, Minimal (wG), Symmetrical position, Asymmetrical solution, Aristocrat
Pieces: du = Grasshopper (G), su = Nightrider (N)
Genre: Fairies
Computer test: Popeye Windows-32Bit v4.73
FEN: 1K6/1*2Q6/*2q*2n*2q5/1*2q6/8/8/8/1k6
Input: HBae, 2017-09-21
Last update: HBae, 2017-09-22 more...
54 - P1346361
Teppo Mänttä
B14 Problemkiste (159-160) 07/2005
P1346361
(1+1+8)
r#6
Circe
Längstzüger
nDL=Känguruh
1. KÄd1 KÄa4 2. KÄa5 KÄd1 3. KÄa1 KÄa6 4. KÄc4 KÄ6d3 5. KÄc5 KÄa6 6. KÄb4 Kxb4[+nKÄb8]#
play all play one stop play next play all
Arnold Beine: Unlösbar! ... 7.Ka1,Kb1,Kc1! (2018-02-01)
Alfred Pfeiffer: Vermutlich fehlt die Bedingung 'Köko'. (2018-02-01)
Arnold Beine: In der Originalquelle fehlt die Angabe "Köko", aber dann wäre die Aufgabe C+. (2018-02-01)
Teppo Mänttä: I confirm that is a KöKo problem. (Everything else would be crazy). (2021-04-25)
comment
Keywords: Skittles setup, Circe, Maximummer, Symmetrical position, Asymmetrical solution, Aristocrat
Pieces: dl = Kangaroo (KÄ)
Genre: Fairies
FEN: 8/8/8/1k6/8/-*3Q-*3Q-*3Q5/-*3QK-*3Q5/-*3Q-*3Q-*3Q5
Input: Erich Bartel, 2018-01-31
Last update: Alfred Pfeiffer, 2018-02-01 more...
55 - P1347556
Teppo Mänttä
10709 Springaren (99) 09/2005
P1347556
(2+4) C+
ser-h#15
Circe
sDU=Grashüpfer
sDL=Känguruh
1. Kh1-h2 2. Kh2-h3 3. Kh3-g4 4. Gg2-g5 5. Kg4-f3 6. KÄd5-g2 7. Kf3-g4 8. KÄg2-g6 9. Gc6-h6 10. KÄg6-g3 11. Kg4-h3 12. Gh6-h2 13. Kh3-g2 14. Kg2-h1 15. Gg5-g2 Se4xg3[+sKÄg1]#
play all play one stop play next play all
Teppo Mänttä: 4th HM in the informal tourney. The award was published in Springaren nr. 108, 03/2008. Judge Göran Forslund. (2021-04-24)
comment
Keywords: Seriesmover, Circe, Symmetrical position, Asymmetrical solution, Oneliner, Aristocrat
Pieces: du = Grasshopper (G), dl = Kangaroo (KÄ)
Genre: Fairies
Computer test: %Popeye FreeBSD-5.3-RELEASE-32Bit-Version 3.81
FEN: K7/8/2*2q5/3*3q4/4N3/8/6*2q1/7k
Input: Erich Bartel, 2018-03-05
Last update: Alfred Pfeiffer, 2018-03-05 more...
56 - P1358781
Baldur Kozdon
1444 Troll 22 05/11/2018
P1358781
(4+8)
#8
1. Sf5! f2 2. Dh1+ f3 3. Dh4+ Df4 4. Td8 Sc6 5. Sd6+ Ke3 6. Sc4+ Ke4 7. Dh7+ Df5+ 8. Dxf5#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (2022-01-11)
comment
Keywords: Symmetrical position, Asymmetrical solution
Genre: n#
FEN: 4R3/4N3/4K3/4n3/3pkp2/3pqp2/4b3/4Q3
Input: Felber, Volker, 2018-12-18
Last update: Felber, Volker, 2018-12-18 more...
57 - P1381534
Mirko Degenkolbe
7571 Kudesnik 223, p. 15, 15/03/2020
Memorial Miroslav Havel-140
P1381534
(4+1) C+
#4
b) alles 1 Feld nach links
a) 1. Ld4? Kd6!
1. Lf4! Zugzwang
1. ... Kf6 2. Lf5 Kg7 3. Lg5 Kh8 4. Lf6#

b) 1. Le4? Ke6!
1. Lc4! Zugzwang
1. ... Kc6 2. Lc5 Kb7 3. Lb5 Ka8 4. Lc6#
play all play one stop play next play all
[MD 1455]
Symmetrische Stellungen mit asymmetrischen Lösungen.
Farbwechsel-Echo-Mustermatts
Henrik Juel: The twin brings nothing new (2020-11-04)
A.Buchanan: Does the twin relate to the tourney theme maybe? (2020-11-05)
more ...
comment
Keywords: Aristocrat, Oneliner, Chameleon Echo, Symmetrical position, Asymmetrical solution, Rex solus (s), Model mate
Genre: n#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 4K3/4N3/4k3/8/4B3/4B3/8/8
Input: Felber, Volker, 2020-11-04
Last update: Felber, Volker, 2020-11-11 more...
58 - P1384836
Kurt Keller
StrateGems 93, p. 51, 01-03/2021
Happy Holidays
P1384836
(9+3) C+
#3 v
1. Kd6? Kxb5 2. Tb1+ Kc4 3. La6#
2. ... Ka4!
2. Ta1 Ka4 3. Ld7#
2. ... Kc4 3. La6#
2. ... c4!

1. Kb6! Kxd5 2. Lf5 c4 3. Td1#
2. ... Kc4 3. Le6#
play all play one stop play next play all
Happy Holidays
By Mike Prcic

As the holiday season approaches, we are reminded of the current COVID-19 pandemic. It has been a difficult time for many of us. I have been in touch with many composers. Many are suffering, especially the older ones. Some are not infected but still need medical care, which is not available, since the hospitals are swamped with COVID-19 patients. One of StrateGems’ editors lost his younger brother to COVID-19. A long-time subscriber from Italy informed me that his whole family was infected. He had the hardest time with the infection but survived and is now COVID-19 negative.
On a positive side (if there is such a thing), we all have ample time for composing (and in my case for playing online bridge). WCCT-11 should benefit from the pandemic. Nevertheless, I hope the vaccine arrives soon, is effective, and that we all can go back to our lives.
To brighten the holiday spirit, Kurt Keller has sent a composition that reminds us of the Christmas tree. Thank you, Kurt!

1.Kd6? Kxb5 2.Rb1+ Ka4! (Kc4? 3.Ba6#);
2.Ra1 c4! (2…Ka4/Kc4 3.Bd7/Ba6#)
1.Kb6! Kxd5 2.Bf5 zz c4/Kc4 3.Rd1/Be6#

(Mike Prcic (Westlake Village, CA): Happy Holidays, in: StrateGems, January 2021)
Comments:
  • Author – Kurt Keller (Ulm, Germany)
  • Yet Another Chess Problem Database (...)

more ...
comment
Keywords: Symbol problem (Christmas tree), Stalemate dissolution, Flight-giving key, Selfblock, Switchback (k,k), Line opening, Symmetrical position, Asymmetrical solution
Genre: 3#
Computer test: Henrik Juel: C+ Popeye 4.61 (2021-01-01)
FEN: 2B5/2B5/2K5/1PpP4/2k5/P1p1P3/2P5/2R5
Input: Kurt Keller, 2021-01-01
Last update: Kurt Keller, 2021-01-09 more...
59 - P1384868
Kurt Keller
2101 Gaudium 235, p. 1, 24/12/2020
Allen Gaudiumlesern zum Fest
P1384868
(10+1) C+
#4
1. Ld8! droht 2. a5 [A] droht 3. Le7#
2. ... Kd6 [a] 3. Lf6 [B] droht 4. c5#
3. ... Kc5 [b] 4. Le7#

1. ... Kd6 2. Lf6 [B] droht 3. c5#
2. ... Kc5 [b] 3. a5 [A] droht 4. Le7#
3. ... Kd6 [a] 4. c5#
play all play one stop play next play all
Den nun schon fast traditionellen Weihnachtsbaum stiftet diesmal unser Leser Kurt Keller aus Ulm. Die Löser mögen beachten, dass dieses Problem ebenfalls am Löseturnier teilnimmt!
(Gunter Jordan (Jena, Germany): Urdrucke, in: Gaudium, Ausgabe 235, 2020-12-24)

2101 (Keller) 1.Ld8! droht 2.a5 [A] (3.Le7#) Kd6 [a] 3.Lf6 [B] (4.c5#) Kc5 [b] 4.Le7#, 1. .. Kd6 2.Lf6 [B] (3.c5#) Kc5 [b] 3.a5 [A] (4.Le7#) Kd6 [a] 4.c5#. Ein Weihnachtsbaum mit thematischem Inhalt (reziproke Züge zwischen [unausführbarer] Drohung und Lösung bei Weiß und Schwarz), was bei Symbolproblemen eher selten ist. Deshalb ragt dieser Festtagsgruß aus der großen Masse heraus (der Autor beglückte im Vorjahr diverse Problemspalten mit Weihnachtsbäumen). „Ein hübscher Baum mit einer moderaten Lösung.“ [Bert Kölske] „☺“ [Berthold Leibe] „Netter Weihnachtsgruß.“ [Karl-Heinz Siehndel] „Ein etwas dürrer Weihnachtsbaum mit nur einer schwarzen Kugel wird im Zugzwang ‚ermattet‘!“ [Joachim Benn] „Eine schlichte Tanne.“ [Claus Grupen]
(Gunter Jordan (Jena, Germany): Lösungen aus Gaudium 235, in: Gaudium, Ausgabe 237, 2021-02-28)
Comments:
  • Author – Kurt Keller (Ulm, Germany)
  • Gaudium (original problem) (235)
  • Gaudium (solution text) (237)
  • Yet Another Chess Problem Database (...)

Henrik Juel: C+ Popeye 4.61 (2021-01-02)
comment
Keywords: Symbol problem (Christmas tree), Rex solus, Symmetrical position, Asymmetrical solution, Reversal 1 (AaBb-BbAa), Stalemate dissolution, Flight-giving key, Switchback (k)
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 2K5/2B5/8/1PkP4/P1P1P3/P3P3/8/2R5
Input: Kurt Keller, 2021-01-02
Last update: Kurt Keller, 2021-03-04 more...
60 - P1385091
Kurt Keller
Best Problems 97, p. 367, 01/2020
Happy New Year 2021
Šťastný nový rok 2021
С новым годом 2021
Bonne année 2021
P1385091
(6+4) C+
#3 v
1. Le6+? A Kb4 a 2. Sd3+ B Ka4 b 3. Lb3# C
1. ... Kd4!

1. La6+! D Kb4 a 2. Sd3+ B Ka4 b 3. Lb5# E
1. ... Kd4 2. Sb3+ Ke4 3. Ld3#
play all play one stop play next play all
Kurt Keller – (Germania) Christmas card
2B5/2B5/2K5/8/2k5/p1p1p3/P3P3/2N5
≠3 (6+4) C+
1.♗e6+?
1…♔b4 2.♘d3+ ♔a4 3.♗b3‡ but 1…♔d4!
1.♗a6+!
1…♔b4 2.♘d3+ ♔a4 3.♗b5‡
1…♔d4 2.♘b3+ ♔e4 3.♗d3‡
Checking key, 2 model mates.

[...] We thank our colleagues who have sent us greetings from various
countries.

(Antonio Garofalo (Bari, Italy): EDITORIALE, in: BEST PROBLEMS, 2021 - January [BP097.pdf])
Comments:
  • Author – Kurt Keller (Ulm, Germany)
  • Yet Another Chess Problem Database (...)

more ...
comment
Keywords: Symbol problem (Christmas tree), Checking key, Model mate, Changed mates, Symmetrical position, Asymmetrical solution, Selfblock, Remote selfblock, interchange in mating position (LS (4))
Genre: 3#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 2B5/2B5/2K5/8/2k5/p1p1p3/P3P3/2N5
Input: Kurt Keller, 2021-01-07
Last update: Kurt Keller, 2021-01-30 more...
61 - P1385832
Kurt Keller
4585 idee & form 149, p. 5047, 01/2021
Weihnachts- und Neujahrsgruss
P1385832
(10+2)
#5
b) -wBd4
c) ferner -wBb5
a) 1. d6? cxd6 2. b6 d5 3. Lb7 Kb5 4. Kc7 Kc4 5. La6#
4. ... Ka4! 5. Lc6+ Ka3

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

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

c) 1. b5? Kc5!
1. d6! cxd6 2. Kb7 d5 3. La4 d4 4. Lb3+ Kb5 5. a4#
play all play one stop play next play all
Nr. 4585, K. Keller [Ulm, Germany]: a) 1.d6? c:d6! 1.b6! c:b6 2.Kc7 b5 3.Ld7 K:d5 4.Lf5 Kc4 5.Le6⧧ b) 1.b6? c:b6! 1.d6! c:d6 2.b6 d5 3.b7 d4 4.b8D (5.Db5⧧) d:c3 5.Df4⧧ c) 1.b5? Kc5! 1.d6! c:d6 2.Kb7 d5 3.La4 d4 4.Lb3+ Kb5 5.a4⧧
(Andreas Nievergelt (Winterthur, Switzerland): informalturnier. Lösungen zu Heft i&f 149, in: idee & form 150, p. 5084, April 2021)
Comments:
  • Author – Kurt Keller (Ulm, Germany)
  • Yet Another Chess Problem Database (...)

more ...
comment
Keywords: Symbol problem (Christmas tree), Stalemate dissolution, Sacrifice key, Sacrifice of white pieces, Active sacrifice, Switchback (k), Option key, Promotion, Pawn mate (c), Symmetrical position, Asymmetrical solution, Twin (triplet), Minimal
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 2K5/2p5/2B5/1P1P4/1PkP4/2P5/P3P3/2R5
Input: Kurt Keller, 2021-01-27
Last update: Kurt Keller, 2021-04-28 more...
62 - P1386298
Erich Bartel
3292 Scobs lignea 07/02/2021
P1386298
(3+1) C+
#7
wSU=Nachtreiter
1. Kc6! Ka7 2. Nc5 Kb8 3. Ne4 Ka7 4. Nd7 Ka8 5. Kc7 Ka7 6. Ne5+ Ka8 7. Nd2#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 also
Asymmetry, but not very striking because of the proximity to the a-line
Still a very nice problem, which is solvable by hand (2021-02-07)
A.Buchanan: Nice to have an empty board for the nightriders to canter around in unblocked. That they are line pieces makes the uniqueness of the solution even more impressive. Someone must have already done tablebase for this endgame (2021-02-08)
comment
Keywords: Aristocrat, Oneliner (b5b8), Rex solus (s), Switchback (k), Corner mate, Ideal mate, Symmetrical position, Asymmetrical solution
Pieces: su = Nightrider (N)
Genre: Fairies
Computer test: Popeye FreeBSD-9.1-RELEASE-amd64-64Bit v4.59
FEN: 1k6/1*2N6/1*2N6/1K6/8/8/8/8
Reprints: 3293 Scobs lignea 07/02/2021
Input: Erich Bartel, 2021-02-07
Last update: James Malcom, 2021-02-08 more...
63 - P1386359
Kurt Keller
C11885 The Problemist 28-1, p. 15, 01/2021
New Year greetings
P1386359
(8+1) C+
#4

Only two #3s this time, and no excessively long moremovers. [...] Keller presents with New Year greetings a symmetrical Christmas tree – but the 2 variations are not symmetrical.
(Jim Grevatt (Headly, England): CHAMPIONSHIP ORIGINALS. THREE- and MOREMOVERS, in: THE PROBLEMIST, JANUARY 2021)
Comments:
  • Yet Another Chess Problem Database (...)
  • Meson Chess Problem Database (249089)

Rosalie Fay: 1. Ld2 zz Kf4 2. Sf1+ Kg4 3. Te4+ Kh5 4. Sg3#;
1. ... Kd4 2. Kd6 zz Ke4 3. Tf2 zz Kd4 4. Tf4#
C+ Popeye Windows-64Bit v4.69 (2023-12-31)
comment
Keywords: Symbol problem (Christmas tree), Option key, Rex solus, Switchback (k), Model mate, Battery creation, Battery play, Discovered check, Batterieabbau (Te2/Se3), Symmetrical position, Asymmetrical solution, Brian Stephenson Collection (249089)
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 8/8/4K3/3P1P2/4k3/4N3/2P1R1P1/4B3
Input: Kurt Keller, 2021-02-10
Last update: Kurt Keller, 2021-07-20 more...
64 - P1386945
Werner Keym
Augsburger Allgemeine 13/02/2021
P1386945
(6+1) C+
#2
1. ... Kxh7! 2. Le4+ Kg8 3. Sh6#
1. ... Kxf7! 2. Lf8 Ke6 3. Dd5#
2. ... Ke8 3. De7#
1. Sh6+? Kxh7 2. Le4#
play all play one stop play next play all
Schwarz hat keinen letzten Zug!
A.Buchanan: Werner opened my eyes to the delights of these “official jokes” sanctioned by Codex Article 15 through his book Eigenartige Schachprobleme. The animation does not handle them well, as the move numbering and the ordering has to be distorted as here (2021-03-04)
A.Buchanan: I expect that Werner will be delighted with this one, as it has very clean solutions and retro try, which is his aim. (2021-03-04)
more ...
comment
Keywords: Miniature, Symmetrical position, No legal last move for Black, Aristocrat, Rex solus (s), Asymmetrical solution
Genre: Retro, 2#
Computer test: Henrik Juel: C+ Popeye 4.61 (2021-03-03)
FEN: 6k1/5NBN/8/6Q1/8/8/6B1/6K1
Input: Gerd Wilts, 2021-03-03
Last update: Alfred Pfeiffer, 2021-07-30 more...
65 - P1387362
Manfred Zucker
Freie Presse (Chemnitz) 24/06/1977
P1387362
(1+1)
Wie viele verschiedene letzte Züge sind möglich?
29 Lösungen
play all play one stop play next play all
Gefragt war natürlich nach dem letzten Einzelzug. Nun kann zuletzt sowohl der weiße als auch der der schwarze König gezogen haben. Der weiße König kann von drei verschiedenen Feldern (a2,b1,b2) gekommen sein, und er kann auf a1 eine schwarze Dame, einen schwarzen Turm, einen schwarzen Läufer, einen schwarzen Springer oder nichts geschlagen haben, das sind 3x5=15 Möglichkeiten. Dasselbe trifft auf den schwarzen König zu, insgesamt ergeben sich so 30 Möglichkeiten für den letzten Zug - und doch ist diese Lösung nicht richtig! Die Stellung wKb2-sLa1 ist partiemöglich (letzte Züge: 1. ... a2-a2=L+! 2. Kxa1), die Stellung sKg2-wLh1 jedoch nicht, denn der weiße Läufer kann (bei schwarzer Königsstellung auf g2) auf keine Weise nach h1 gekommen sein! Diese partieunmögliche Stellung war also zu subtrahieren, das richtige Ergebnis mußte "29" lauten.

Duplicate Diagram: P1207607

Dazu schreibt die FP: "Wie viele verschiedene letzte Züge sind möglich? Noch ein kleiner Hinweis: Beachten Sie beim Zählen bitte auch, daß die Könige zuletzt geschlagen haben können.".

(MZ433)
.
Henrik Juel: solution
2x3x5 - 1 = 29
R: Kg2xLh1 is illegal (2021-03-12)
A.Buchanan: This preceded the DP rule by 20 years, so under “Golden Age” principle, that rule does not apply, although it would be sound either way. Under DP rule there would have been 2x2x3=12 possible last moves, as a rook or queen must have just been captured (2021-03-13)
A.Buchanan: Is an only kings position an aristocrat or a kindergarten? :) Is it a one liner? :) I think the answer should be no, no and no (2021-03-13)
comment
Keywords: Aristocrat, Miniature, only Kings, Golden Age, Last Move?, Symmetrical position, Asymmetrical solution
Genre: Retro, Mathematics
FEN: 8/8/8/8/8/8/8/K6k
Input: Felber, Volker, 2021-03-12
Last update: A.Buchanan, 2021-03-13 more...
66 - P1387846
Fred Lazard

P1387846
(6+8) C+
#3
1. Lh6! (Zugzwang)
1. ... c6 2. b6 e6 3. Lf8#
2. ... Scxd3,Sc5~ 3. Sb7#
2. ... Sexd3,Se5~ 3. Sf7#
play all play one stop play next play all
"La Croix de Lorraine" (Lothringerkreuz)
vgl. P1348722 mit der gleichen Symbolik
Henrik Juel: C+ Popeye 4.61
Asymmetry (2021-03-26)
comment
Keywords: Symbol problem (Lothringerkreuz), Asymmetrical solution
Genre: 3#
Computer test: Henrik Juel (2021-03-26): C+ Popeye 4.61
FEN: 3N4/2ppp3/3k4/1PnpnP2/3p4/3P4/3B4/3K4
Reprints: 13 Combat (Paris) 25/08/1946
Input: Mario Richter, 2021-03-26
Last update: Mario Richter, 2021-03-26 more...
67 - P1388399
Erich Bartel
3338 Scobs lignea 11/04/2021
P1388399
(2+1)
h#7
Platzwechselcirce
wTU=Wesir
1. Ke4xd5[+wWEe4] WEf5-g5 2. Kd5-e6 WEe4-e5+ 3. Ke6-f7 WEe5-e6 4. Kf7xe6[+wWEf7] WEf7-f8 5. Ke6-f6 WEg5-h5 6. Kf6-g7 WEh5-h6 7. Kg7-h8 WEf8-g8#,WEh6-h7# (Mattdual,Verschmerzbar?)
play all play one stop play next play all
Henrik Juel: The black king goes to h8, on his way helping the white wazirs reach f8 and h6
The mating move dual is very disturbing, I think (2021-04-11)
comment
Keywords: Circe (Platzwechsel), Symmetrical position, Asymmetrical solution, Aristocrat, Rex solus (s)
Pieces: tu = Wazir (WE)
Genre: Fairies
Computer test: %Popeye FreeBSD-9.1-RELEASE-amd64-64Bit v4.59
FEN: 8/8/8/3*2R1*2R2/4k3/8/8/8
Input: Erich Bartel, 2021-04-11
Last update: Alfred Pfeiffer, 2021-04-21 more...
68 - P1389045
John Frederick Keeble
Falkirk Herald 1914
P1389045
(8+7)
#2
1. g3! (Zugzwang)
1. ... Sc3+ 2. Sxc3#
1. ... Sa3 2. Sc3#
1. ... Sxg3+ 2. Sxg3#
play all play one stop play next play all
more ...
comment
Keywords: Symmetrical position, Asymmetrical solution
Genre: 2#
Computer test: SCHRECKE: C+, popeye 4.85 (2021-04-29
FEN: 8/8/8/4p3/2P1k1P1/4B3/2PpKpP1/1n1NbN1n
Reprints: 23 Panorama (Leiden) 06/05/1925
70 Asymmetry 1927
Input: Mario Richter, 2021-04-29
Last update: Erich Bartel, 2021-04-29 more...
69 - P1389169
Thomas R. Dawson
Andrew Buchanan

PDB Website 14/10/2019
TRD, correction AB
P1389169
(4+5) C+
h#2
1. d4 Sg6 2. Tg5 Ta6#
play all play one stop play next play all
See P0515072
Henrik Juel: C+ Popeye 4.61
1.d4 Sg6 2.Tg5 Ta6#
pawn asymmetry (2021-05-02)
A.Buchanan: Yes Henrik exactly - every symmetry has to be broken somehow to make the solution unique, and here the point is that the symmetry is just visual, broken by the pawn movement rules (2021-05-02)
comment
Keywords: Symmetrical position, Asymmetrical solution, Model mate
Genre: h#
Computer test: C+ Popeye 4.61
FEN: 5N1K/8/5k1N/1r1p4/4p3/8/4r3/R7
Input: A.Buchanan, 2021-05-02
Last update: A.Buchanan, 2021-05-08 more...
70 - P1389376
Stefan Felber
Augsburger Allgemeine 05/2021
P1389376
(3+4) C+
#6
1. Lg3 Kd4 2. Db4+ Kd3 3. Db1+ Kc3 4. Kd5 e6+ 5. Kc5 e5 6. Le1#
3. ... Kc4 4. Le1 Kd4 5. Df5 Kc4 6. Dd5#
4. ... Kc5 5. Db7 Kc4,Kd4 6. Dd5#
play all play one stop play next play all
Henrik Juel: Well hidden board asymmetry
1.Lc3? Kd3! and black king avoids being mated because of the a-file (2021-05-08)
more ...
comment
Keywords: Miniature, Symmetrical position, Oneliner, Asymmetrical solution
Genre: n#
Computer test: Popeye 4.61 Other variations lead to #5 and have some duals (Henrik Juel)
FEN: 8/4p3/4K3/4B3/4k3/4p3/4p3/4Q3
Input: Rainer Staudte, 2021-05-08
Last update: Alfred Pfeiffer, 2021-08-10 more...
71 - P1390326
Sigmund Herland
342 Deutsche Schachblätter 2, p. 32, 02/1952
P1390326
(9+8) C+
#4
1. h3! h6 2. Sxg6 c5 3. Sf8+
2. ... Kf5 3. Sh4+
1. ... b6 2. d5+ cxd5 3. Sa6

1. b3? h6!
play all play one stop play next play all
more ...
comment
Keywords: Symmetrical position, Asymmetrical solution
Genre: n#
Computer test: Popeye 4.61, except for some late double threats (
FEN: 4B3/1p2p2p/2p1k1p1/4B3/1N1P1P1N/4p3/1P2p2P/4K3
Input: Dieter Berlin, 2021-05-31
Last update: Alfred Pfeiffer, 2021-09-16 more...
72 - P1390558
Adrian Storisteanu
Discord Chess Problems & Studies Server 02/05/2021
2.-3. Platz
Discord Composition Tourney 1
P1390558
(4+6)
#1
b) Drehung 90° Uhrzeigersinn
c) Drehung 180°
d) Drehung 270°
a) 1. Sc5#
b) 1. Sf5#
c) 1. Sf6#
d) 1. Sc6#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-09-30)
more ...
comment
Keywords: Board Rotation, Symmetrical position, Asymmetrical solution
FEN: 8/3Np3/8/1N1pp3/1p1pk3/5R2/6K1/8
Input: A.Buchanan, 2021-06-08
Last update: Alfred Pfeiffer, 2021-09-30 more...
73 - P1390564
Adrian Storisteanu
Discord Chess Problems & Studies Server 02/05/2021
8. Platz
Discord Composition Tourney 1
P1390564
(2+6)
#1
Duplex
w) 1. Da1#
s) 1. ... Da8#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-09-30)
more ...
comment
Keywords: Symmetrical position, Asymmetrical solution (2), Minimal, Asymmetrical solution
FEN: 5q2/8/4nQn1/5p2/5p2/5K2/8/5k2
Input: A.Buchanan, 2021-06-08
Last update: Alfred Pfeiffer, 2021-09-30 more...
74 - P1390566
Geir Sune Tallaksen Østmoe
Discord Chess Problems & Studies Server 02/05/2021
10. Platz
Discord Composition Tourney 1
P1390566
(9+8)
#1
1. bxc6ep#
play all play one stop play next play all
Author: 1.fxe6 e.p.#? is illegal. Black’s last move can only have been …c7-c5 or …e7-e5. White’s pawns have made 8 captures, which means they captured all of Black’s missing pieces. This includes the dark-squared bishop, which must have moved from f8 in order to be captured by a White pawn. This means the pawn on e7 must have moved or been captured earlier, so Black’s last move can not have been …e7-e5. This leaves …c7-c5 as the only possible last move.
more ...
comment
Keywords: Symmetrical position, Asymmetrical solution, En passant
Genre: Retro
FEN: 2nrn3/p2k2p1/1P1P1P2/1PpKpP2/3P4/3P4/3P4/8
Input: A.Buchanan, 2021-06-08
Last update: Alfred Pfeiffer, 2021-09-30 more...
75 - P1391384
Rainer Staudte
1584 Troll 14 23/06/2021
P1391384
(4+2) C+
#4
b) alles drei Reihen höher
a) 1. Sd6! Ka5 2. Kc3 b2 3. Kc4 b1=D,T,L,S 4. Sb7#

b) 1. Sa6! Ka8 2. Kc6 b5 3. Sc8 b4 4. Sb6#
play all play one stop play next play all
more ...
comment
Keywords: Symmetrical position, Asymmetrical solution, Allumwandlung, unechte schwarze, Miniature
Genre: n#
Computer test: Popeye 4.61
FEN: 8/8/8/1B6/NkN5/1p6/1K6/8
Input: Rainer Staudte, 2021-07-05
Last update: Alfred Pfeiffer, 2021-12-14 more...
76 - P1394836
Andrew Buchanan
ChessBase India 21/10/2021
after Georges Glaeser
P1394836
(15+15) C+
h#2.5 (who?) b) bK->d8
a) WTM 1. ... Sc3 Sc6 2. Sxd5 Sd8 3. Sxc7#
b) BTM 1. Sc6 2. Sc3 Sxd4 3. Sd1 Sxc2#
play all play one stop play next play all
See P0005272
more ...
comment
Keywords: Parity Argument, Symmetrical position (2), Asymmetrical solution (2), Whose move?
Genre: h#, Retro
Computer test: HC+ Popeye v4.87 & trivial retro-logic
FEN: r1b1kb1r/pppppppp/8/3nn3/3NN3/8/PPPPPPPP/R1B1KB1R
Reprints: Facebook 21/10/2021
Input: A.Buchanan, 2021-10-23
Last update: A.Buchanan, 2022-02-16 more...
77 - P1396623
Kurt Keller
13151 Probleemblad 4, p. 110, 10-12/2021
Vrolijke Kerstdagen en Gelukkig Nieuwjaar
Merry Christmas and Happy New Year
P1396623
(9+2) C+
#6 v...
1. c4! Kd4 2. Kd6 droht 3. Lb5 Ke4 4. c5 Kd4 5. Sc6+ A Ke4 6. Ld3# B
2. ... Kxc4 3. La4 Kd4 4. Lb5 Ke4 5. Ld3+ B Kd4 6. Sc6# A
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Bij de problemen
Aan de zeszet van Kurt Keller kunnen we zien dat de tijd hard gaat. Op het moment van verschijnen van Probleemblad zijn de kersdagen en 2022 nabij. Zijn motto boven het probleem nemen we graag over: “Vrolijke Kerstdagen en gelukkig Nieuwjaar”. Hopelijk vieren we de feesten met minder coronabeperkingen dan vorig jaar. Nuttige tijdsbesteding is natuurlijk om de 15 nieuwe problemen in een gezellige sfeer op te lossen.

From Kurt Keller’s sixmover, we can see that time is going fast. At the time of publication of Probleemblad, Christmas and 2022 are near. We like to adopt his motto above the problem: “Merry Christmas and Happy New Year”. Hopefully we will celebrate the festivities with less corona restrictions than last year. Of course you can use your time well by solving the 15 new problems in a cosy atmosphere.

(Henk Prins (Sliedrecht, the Netherlands): Originele Problemen en Oplossingen. Orthodox, in: PROBLEEMBLAD, oktober-december 2021)

13151 Keller 1.c4! ♚d4 2.♔d6 ♚xc4 3.♗a4 ♚d4 5.♗b5 ♚e4 5.♗d3+ ♚d4 6.♘c6#, 2... ♚e4 3.♗b5 ♚d4 4.c5 ♚e4 5.♗d3+ ♚d4 5.♘c6# of 3.c5 ♚d4 4.♗b5 ♚e4 5.♗d3+ ♚d4 6.♘c6#. En kerstboom met lampjes. Het juiste lampje moet aangestoken worden. Veel lampjes geven kortsluitin door pat. Het lampje aan de andere kant 1.g4? faalt op 1... ♚f4! De witte lamp aan de top zou naar veld i4 moeten, maar ja, dat is buiten de kerstboom.
(Henk Prins (Sliedrecht, the Netherlands): Originele Problemen en Oplossingen. Oplossingen orthodox 2021-4 (oktober-december), in: PROBLEEMBLAD, april-juni 2022)
Henrik Juel: 1.c4 Kd4 2.Kd6 Kxc4 3.La4 Kd4 4.Lb5 Ke4 5.Ld3 Kd4 6.Sc6#
dual 2... Ke4 3.Lb5,c5 (2021-12-05)
comment
Keywords: Symbol problem (Christmas tree), Stalemate dissolution, Flight-giving key, Sacrifice of white pieces (B), Passive sacrifice, Minimal, Symmetrical position, Asymmetrical solution
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 4B3/4N3/4K3/3P1P2/4k3/2P1p1P1/4P3/4B3
Input: Kurt Keller, 2021-12-05
Last update: Kurt Keller, 2022-06-23 more...
78 - P1397709
Rainer Staudte
Michael Schlosser

27 Unión Argentina de Problemistas de Ajedrez A1 27/12/2021
P1397709
(3+2)
Gewinn
b) Kc1->c3
a) 1. Sd7+? Kd6! 2. Sb6 Kc7!
2. Sf6 Ke7! Echo

1. Sa6+! Kb5 2. Sc7+ Ka4 3. Kb2! c5 4. Sd5 c4 5. Sc3+ gewinnt

3. Kc2? Ka3! mit der Drohung, die Remis-Ecke zu erreichen 4. Kb1 c5! 5. Sd5 c4! 6. Sc3 Kb3!
4. ... Kb3? verliert nach 5. Sde6! droht 6. Sc5
5. ... c5 6. Sd5! c4 7. Sd4+,Sc5+ Ka4 8. Sc3+!
1. ... Kb6 2. Sb4! Ka5 3. Sa2!

b) 1. Se6+? Kd6! 2. Sf4 c5! 3. Kc4 Kc7! Springerfang 4. Sa6+ Kb7
1. Sd7+? Kd6! mit Spingerverlust

1. Sa6+ Kb6 2. Sb4 Kc7 3. Sf7 c5 4. Sd5+ Kc6 5. Kc4

3. Se6+? Kd6! 4. Sf4 c5! 5. Sbd3 c4!
2. ... c5 3. Sd5+! Kb5 4. Kc2,Kb2 c4 5. Sc3+
1. ... Kb5 2. Sc7+! Kb6 2. Sb4? c5!
play all play one stop play next play all
more ...
comment
Keywords: Symmetrical position, Asymmetrical solution, Minimal, Miniature, Grab (S), Echo
Genre: Studies
FEN: 1N1N4/8/2p5/2k5/8/8/8/2K5
Input: Rainer Staudte, 2022-01-02
Last update: Rainer Staudte, 2022-06-20 more...
79 - P1398704
Edgar D. Holladay
1647 Ideal-Mate Review 19 01-03/1986
P1398704
(2+5)
h=6
1. c1=T a4 2. Th1 a5 3. Kf1 a6 4. Ke1 a7 5. Kd1 a8=D 6. Le1 Dxh1=
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2022-01-28)
comment
Keywords: Antiphönix, Asymmetrical solution, corner to corner (D), Excelsior white, Ideal stalemate, konsekutive Umwandlungen 2 (tD), Miniature, Minimal (B), Oneliner, Symmetrical position, Promotion (D), under-promotion (t), under-promotion key
Genre: Fairies
FEN: 8/8/8/8/8/8/PKpppbk1/8
Input: Gunter Jordan, 2022-01-28
Last update: Gunter Jordan, 2022-01-28 more...
80 - P1398705
George Stillingfleet Johnson
1648 Ideal-Mate Review 19 01-03/1986
P1398705
(4+2)
h=4
1. Lg2 Kd3 2. Lh3 Sg5 3. Le6 Sxe6 4. Kd5 Sd8=
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2022-01-28)
comment
Keywords: Asymmetrical solution, Ideal stalemate, Miniature, Minimal (l), Symmetrical position
Genre: Fairies
FEN: 8/8/2k5/4P3/3PK3/5N2/8/7b
Input: Gunter Jordan, 2022-01-28
Last update: Gunter Jordan, 2022-01-28 more...
81 - P1398986
Werner Keym
Stuttgarter Zeitung 2021
P1398986
(6+1) C+
#2
b) Drehung um 90°
a) 1. Sf7+! Kxg6 2. Ld3#
b) Mit Drehung recht:
nicht 1. Sb6+? Kxc7 2. Lf4#
sondern b) 1. ... Kxc7! Lf4+ 2. Kc8 Sb6#
play all play one stop play next play all
Absichtlich wird nicht angegeben, in welche Richtung gedreht werden soll. Wenn man die Stellung um 90° im Uhrzeigersinn dreht (wKf4), gibt es keine zweizügige Lösung. Wenn man sie um 90° gegen die Uhr dreht (wKc5), entsteht eine Stellung, in der Schwarz nicht zuletzt gezogen haben kann.
Der Bauer ist entscheidend.
It is intentionally not specified in which direction to rotate. If you turn the position 90° clockwise (wKf4), there is no two-move solution. If you turn it 90° counterclockwise (wKc5), you get a position where Black cannot have moved last.
The pawn is decisive.
A.Buchanan: There are literally hundreds of problems in PDB where "Drehung um 90 Grad" means clockwise. So reading the text here, one thinks: "Oh the stipulation is wrong - I'll correct it." The joke is so slight against the noise that it's not worth bothering with. Better to have "which way?" in the stipulation. (2022-02-10)
A.Buchanan: Also the fourth orientation unmentioned has no solution. Somehow would be nice to make reference to that "for symmetry". Maybe publish the board with unshaded squares in a diamond orientation, and ask the solver to find the two orientations that work. (2022-02-10)
more ...
comment
Keywords: Miniature, Symmetrical position, Rex solus (s), Asymmetrical solution, Twinning by board rotation
Genre: 2#
Computer test: a) C+ Popeye 4.61 b) HC+ Popeye 4.87 + trivial retro logic
FEN: 8/6N1/B3KBPk/6N1/8/8/8/8
Input: Alfred Pfeiffer, 2022-02-09
Last update: A.Buchanan, 2022-02-10 more...
82 - P1402843
Bogusz Piliczewski
1114 Pat a Mat 116 06/2021
Lob
P1402843
(5+3)
#2
1. Sf3-g1? droht 2. Tf2-e2# 2. Tf2-f3#
1. ... Lh3-f1 2. Tf2-f3#
1. ... Lh3-g2 2. Tf2-e2#
1. ... Lh3-g4!
1. Sf3-g5? droht 2. Tf4-f3# 2. Tf4-e4#
1. ... Lh3-f5 2. Tf4-f3#
1. ... Lh3-g4 2. Tf4-e4#
1. ... Lh3-g2!
1. Sf3-h4? Lh3-f1 2. Sh4-f5#
1. ... Lh3-g4 2. Sh4-g2#
1. ... Lh3-c8,L~ 2. Sh4-g2#
1. ... b3-b2!
1. Sf3-h2? Lh3-g2 2. Sh2-g4#
1. ... Lh3-f5 2. Sh2-f1#
1. ... Lh3-c8,L~ 2. Sh2-f1#
1. ... b3-b2!
1. Sf3-e5? droht 2. Se5-c4#
1. ... Lh3-f1 2. Se5-g4#
1. ... Lh3-f5 2. Se5-c4#
1. ... Lh3-e6!
1. Sf3-e1? Lh3-g4 2. Se1-g2#
1. ... Lh3-f5 2. Se1-g2#
1. ... Lh3-c8,L~ 2. Se1-g2#
1. ... Lh3-f1!
1. Sf3-d4? droht 2. Tf2-e2# 2. Tf2-f3#
1. ... Lh3-g4!

1. Sf3-d2! droht 2. Sd2-c4# 2. Tf4-f3# 2. Tf4-e4#
1. ... Lh3-g2 2. Sd2-c4#
1. ... Lh3-f1,Le6 2. Tf4-e4# 2. Tf4-f3# 2. Sd2xf1#
1. ... Lh3-f5 2. Tf4-f3# 2. Sd2-f1# 2. Sd2-c4#
1. ... Lh3-g4 2. Sd2-f1# 2. Sd2-c4# 2. Tf4-e4#
1. ... b3-b2 2. Sd2-c4# 2. Tf4-f3# 2. Tf4-e4#
play all play one stop play next play all
Henrik Juel: many duals (2022-07-20)
comment
Keywords: Symmetrical position, Asymmetrical solution
Genre: 2#
FEN: 8/8/8/8/5R2/1pK1kNBb/5R2/8
Input: Marcin Banaszek, 2022-07-20
Last update: Marcin Banaszek, 2022-08-04 more...
83 - P1402955
Kurt Keller
3675 ChessStar 23/07/2022
P1402955
(2+5) C+
h#5
1. a4 bxa4+ 2. Kc4 a5 3. Kb5 a6 4. Ka5 a7 5. b5 a8=D,T#
play all play one stop play next play all
Comments:
SCHRECKE: Umwandlungsdual (a8T#) im Hilfsmatt ist nicht jedermanns Sache - meine auch nicht! (2022-07-23)
Henrik Juel: so the problem is not C+... (2022-07-23)
Kurt Keller: see keyword "tolerated dual promotion":
"Sometimes, the mating move is a promotion, and both D/T would mate. Similarly, sometimes D/L would both work. This is a tolerated dual under Article 13 of the Codex, because if it were not allowed, too many matrices would be invalid."
Article 13 (https://www.wfcc.ch/1999-2012/codex/):
"(2) Help-play compositions are unsound also if they are dualized, except that in the final move a promotion into different pieces having partially the same power (for example queen/rook or queen/bishop) may be tolerated [16]."
Therefore, the problem is sound (C+). (2022-07-23)
comment
Keywords: Symbol problem (cross), Kindergarten Problem, Minimal (B), Miniature, Symmetrical position, Asymmetrical solution, Sacrifice key, Sacrifice of black pieces (active), Active sacrifice, White correction (for Black), Selfblock, Switchback (k), Promotion in the mating move, Tolerated dual promotion (D/T)
Genre: h#
Computer test: Gustav 4.1 d
FEN: 8/1K6/1p6/pkp5/1p6/1P6/8/8
Input: Kurt Keller, 2022-07-23
Last update: Kurt Keller, 2022-10-28 more...
84 - P1406712
Kurt Keller
12857 feenschach 250, p. 1023, 10-12/2022
Frohe Ostern
P1406712
(3+5) C+
h=4
b) an der mittleren Horizontale gespiegelt (Kc1/Kc3)
a) 1. b5 Kd8 2. bxc4 Ke7 3. Kd5 Kf6 4. c6 Kf5=
b) 1. Kb4 Le4 2. Ka3 Lxd3 3. Ka2 Lxc4 4. Ka1 Lxb3=
play all play one stop play next play all
Comments:
  • Author – Kurt Keller (Ulm, Germany)
  • Für den Ostergruß wurde das Problem offensichtlich zu früh gebracht. Das Problem selbst ist jedoch für die Weihnachtszeit geeignet, da die beiden Kreuze auch als Weihnachtsbaum oder Kerze betrachtet werden können. (The problem was obviously brought up too early for the Easter greeting. However, the problem itself is suitable for the Christmas season because the two crosses can also be considered a Christmas tree or candle.) Vergleiche (Compare) P1388082
  • Source: Urdruckteil_250.pdf on http://www.feenschach.de

Henrik Juel: solutions
a) 1.b6-b5 Kc8-d8 2.b5*c4 Kd8-e7 3.Kc6-d5 Ke7-f6 4.c7-c6 Kf6-f5 =
b) 1.Kc3-b4 Bc6-e4 2.Kb4-a3 Be4*d3 3.Ka3-a2 Bd3*c4 4.Ka2-a1 Bc4*b3 = (2022-12-14)
comment
Keywords: Symbol problem (Doppelkreuz), Twin, Asymmetrical solution, Selfblock, Passive sacrifice, Annihilation, Remote selfblock, Sacrifice of white pieces, Sacrifice of black pieces, Active sacrifice (L), Symbol problem (Kerze), Symbol problem (Weihnachtsbaum)
Genre: Fairies
Computer test: Gustav 4.1 d
FEN: 2K5/2p5/1pkp4/2p5/2P5/2B5/8/8
Input: Kurt Keller, 2022-12-14
Last update: Kurt Keller, 2023-01-06 more...
85 - P1406812
Stefan Felber
1763 Augsburger Allgemeine 10/12/2022
P1406812
(5+7)
#3
b) wLe4->e6:4#
c) wLe4->e8:5#
a) 1. Lxd3+! Kxd3 2. Da3 Kc2 3. Db3#
2. ... Ke2 3. Da6#
2. ... Kc4 3. Th4#

b) 1. Lh3! d1=D 2. Lf1 Kd2 3. Db4 Kc2 4. Db2#
1. ... d1=S 2. Lf1 Kd2 3. Da3 Sb2 4. Dxb2#
1. ... d1=L 2. Lf1 Kd2 3. Da3, 3. Db4, 3. Dc5, 3. Dc7

c) 1. La4! f1=S 2. Ld1 Kf2 3. Dh4 Kg2 4. Dh3 Kf2 5. Txf1#, 5. Dxf3#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61, except for mate duals (2022-12-24)
comment
Keywords: Symmetrical position, Capture key (in a), Checking key (in a), Asymmetrical solution, Symbol problem (Weihnachtsbaum)
Genre: 3#
FEN: 8/4Q3/8/4K3/4B3/3ppp2/3pkp2/1R2b2R
Input: Felber, Volker, 2022-12-24
Last update: Gunter Jordan, 2022-12-24 more...
86 - P1407446
Andrew Buchanan
Discord Chess Problems & Studies Server 25/01/2023
to Siegfried Hornecker
P1407446
(9+9)
A=>A in exactly 2.0 moves
16 solutions
Joost de Heer: In the diagram position, all castling rights are present. Each solution leads to a position with different castling rights remaining.

There are 4 different repetitions for white:
* 1. Rb1 2. Ra1 (Only white kingside castling still allowed)
* 1. Rh2 2. Rh1 (Only white queenside castling still allowed)
* 1. Kd2 2. Ke1 (No white castling allowed)
* 1. Sb6 2. Sc8 (All white castling allowed)

Similarly for black: 1. Rb8 2. Ra8 / 1. Rh7 2. Rh8 / 1. Kd7 2. Ke8 / 1. Sb3 2. Sc1

Each combination of these four results in a position with different castling rights, so 4*4=16 solutions.
There's one solution that breaks this pattern: all white castling allowed, no black castling allowed. Following the above scheme would result in the solution 1. Sb6 Kd7 2. Sc8 Ke8, but the first black move is not allowed, so this solution is slightly different: 1. Sd6 Kd7 2. Sc8 Ke8 (2023-02-07)
comment
Keywords: A to B, Symmetrical position, Asymmetrical solution
Genre: Retro
FEN: r1N1k1Nr/p3Pp2/7p/8/8/7P/P3pP2/R1n1K1nR
Input: A.Buchanan, 2023-01-27
Last update: A.Buchanan, 2023-01-27 more...
87 - P1410856
Claus Grupen
3774 Kieler Nachrichten 04/12/2004
P1410856
(4+7)
#6
1. Df4+! e5+ 2. Sxe5 c5+! 3. Kd3 c4+ 4. Kd4 fxe5+! 5. Dxe5+ Kc6 6. Dxd5#
3. ... d4 4. Dxf6+ Kd5 5. Sc4 ... 6. Sxb6,Dd6#
3. ... f5 4. Dh6+ Kxe5 5. Lc7+ d6 6. Dxd6,Lxd6# (Mattdual)
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61, except for mate duals (2023-07-10)
comment
Keywords: Asymmetrical solution, Cross check, Provoked check, Checking key, Symbol problem (Kreuz), Symmetrical position
Genre: n#
FEN: 3B4/3p4/1ppkpp2/3p4/3K4/3N4/3Q4/8
Input: Gunter Jordan, 2023-07-10
Last update: Gunter Jordan, 2023-07-10 more...
88 - P1410943
Claus Grupen
3827 Kieler Nachrichten 10/12/2005
P1410943
(4+7) C+
#4
1. Da1! fxg2! 2. Da5+ Kd4 3. Dd2+ Ke5 4. Tc5+ Kf6 5. Dg5#
play all play one stop play next play all
sBb3 = Wiesel
Stefan Felber: Forderung korrigieren! (2023-07-16)
comment
Keywords: Asymmetrical solution, Flight taking, Schlüssel = Eckzug, Symbol problem (Kreuz), Symmetrical position
Genre: n#
Computer test: Gustav 4.1 a
FEN: 8/1K3p2/2R1p3/3k4/2p1p3/1p3p2/6B1/7Q
Input: Gunter Jordan, 2023-07-16
Last update: Gunter Jordan, 2023-07-16 more...
89 - P1413558
Vadim V. Zhylko
Magadanskaja Prawda 1994
P1413558
(3+3)
#6
1. Te8! Kd1,Kd2 2. Tbd8+ Kc1 3. Te1+ Kb2 4. Tb8+ Ka2 5. Tc1 Ka3 6. Ta1#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-11-17)
comment
Keywords: Symmetrical position, Asymmetrical solution, Switchback (Tk), Model mate, Miniature
Genre: n#
FEN: 1R1R4/2K5/8/8/8/2p5/2p5/2k5
Input: Rainer Staudte, 2023-11-17
Last update: Gunter Jordan, 2023-11-17 more...
90 - P1413877
Frank Fiedler
1711 Troll 26 06/12/2023
P1413877
(4+1)
#5
1. Sed4! Kc1 2. Kc3 Kd1 3. Le4 Kc1 4. Sb3 Kb1 5. Sb4#
4. ... Kd1 5. Lf3#
2. ... Kb1 3. Sb3 Ka2 4. Sd2#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-12-02)
comment
Keywords: Echomatt, Symmetrical position, Asymmetrical solution, Aristocrat, Miniature, Rex solus (s)
Genre: n#
FEN: 8/8/8/3B4/8/3K4/2N1N3/3k4
Input: Rainer Staudte, 2023-12-02
Last update: Gunter Jordan, 2023-12-03 more...
91 - P1414065
Anton Baumann
5017 idee & form 159, p. 5391, 07/2023
P1414065
(6+2)
s#11
1. g8=D! Ke4 2. Dg4+ Kd5 3. Dc4+ Kd6 4. Ta6+ Kd7 5. Da4+ Tb5 6. Dg4+ Tf5 7. Ta8 Ke6 8. Tf8 Kd7,Ke6~ 9. Td8+ Ke6 10. Tc6+ Kf7 11. Dh5+ Txh5#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-12-15)
comment
Keywords: Minimal (t), Oneliner, Symmetrical position, Promotion (D), Promotion key, Asymmetrical solution, Corner mate, Model mate, Queen sacrifice, Antiphönix
Genre: s#
FEN: 7K/6P1/5B2/4r3/3k4/2R5/1P6/R7
Input: Felber, Volker, 2023-12-14
Last update: Gunter Jordan, 2023-12-14 more...
92 - P1414391
Johannes Steinmüller
864 Sinfonie Scacchistiche 01-03/2024
P1414391
(3+2)
Gewinn
1. c8=D? Ke5+! 2. Ke8 Dd5 3. Dc3+ Kd6! 4. Df6+ Kc7! 5. Df4+ Kc8 6. Kf8 Dc5! 7. Kf7 Dh5+! 8. Kf8
6. Dg4+ Kc7! 5. Kf8 Dc5!
3. Kf8 Df3+! oder
2. ... Kf6 3. Dc6+,Da6+ Kg7!

1. e8=D! Kc5+ 2. Kc8! Dd5 3. De3+! Kd6 4. Db6+ Ke7 5. Db4+ Ke8 6. Kb8 De5 7. Kb7 Dd5+ 8. Kb6 De6+ 9. Ka7! Kd7 10. Db7! Da2+ 11. Kb8! Dh2 12. Dd5+ gewinnt, zum Beispiel Ke7 13. Dd4 Dg3 14. Dc5+ Ke8 15. Kb7 Dg7 16. Db5+ Kf8 17. Dd5 Db2+ 18. Kc6 Ke7 19. Dc5+ Kf7 20. c8=D

2. ... Dc3 3. Dg8
2. ... Kb6 3. De6+ Ka7 4. Db3,Dc4 Dg2 5. Da4+ Kb6 6. Dd4+ Kc6 7. Kb8 Dh2 8. Dc3+ Kb5 9. Db3+ Ka5 10. Db7 Ka4 11. Ka8
6. ... Ka6 7. Kd7 Dh3+ 8. Kd8 Kb7 9. Db4+
4. ... Ka6 5. Db7+ Ka5 6. Kb8 Df4 7. Ka8
play all play one stop play next play all
Anton Baumann: 15.Ka7 führt etwas schneller zur 2.Dame:
15.Ka7 Dg7 16.Db5+ Kf8 17.Db8+ Kf7 18.c8=D +_ (2024-01-09)
comment
Keywords: Symmetrical position, Asymmetrical solution, Minimal (d), Miniature, Promotion key, Promotion (D), Discovered check
Genre: Studies
FEN: 8/2PKP3/8/3k4/8/8/3q4/8
Input: Rainer Staudte, 2024-01-08
Last update: Rainer Staudte, 2024-01-12 more...
93 - P1414600
Frank Fiedler
2521 Gaudium 286, p. 4, 06/2023
P1414600
(2+1)
=3
2.1...
h1=Imitator
1) 1. Kb6[Ig1]! Kb8[Ih1] 2. g3[Ih2] Ka8[Ig2] 3. Kc5[Ih1]=
2) 1. g4[Ih3]! Ka7[Ih2] 2. Kc5[Ih1] Ka8[Ih2] 3. Kc4[Ih1]=
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 also (2024-01-21)
comment
Keywords: Asymmetrical solution, Pawn step variations, Minimal (B), Oneliner, Rex solus (s), Symmetrical position, Corner mate (-patt), Kindergarten Problem, Miniature, Aristocrat, Aristocrat
Pieces: i = Imitator (I)
Genre: Fairies
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: k7/8/2K5/8/8/8/6P1/8
Input: Gunter Jordan, 2024-01-21
Last update: Gunter Jordan, 2024-01-21 more...
94 - P1415031

10823 Seven Chess Notes 216 01/2024
M. Christmas
P1415031
(6+1)
#3
1. a5! Kb5 2. Db6+ Ka4 3. Db4#
2. ... Kc4 3. Db4#
1. ... Kc5 2. Kb3 Kb5 3. Db6#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2024-02-13)
comment
Keywords: Miniature, Rex solus (s), Symbol problem (weihnachtsbaum), Asymmetrical solution, Symmetrical position
Genre: 3#
FEN: 8/2Q5/2P5/8/P1k1P3/2P5/2K5/8
Input: Rainer Staudte, 2024-02-13
Last update: Gunter Jordan, 2024-02-13 more...
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