Die Schwalbe

38 problem(s) found in 2075 milliseconds (displaying 38 problem(s)). [COMMENTDATE>=20220810 AND NOT S='Akademische Monatshefte für Schach' AND K='asymmetrische Lösung'] [download as LaTeX]

1 - P0004325
Charles Edward Kemp
London Evening News 1943
P0004325
(7+9) cooked
Schwarz nimmt 1 Zug zurück, dann h#1
R: 1. g5xSf4, dann 1. Le5 Sd5#
play all play one stop play next play all
Cook: R: 1. e7xSd6, dann 1. Le5 Se4#
Henrik Juel: Diagram error? -1... g5xSf4, 0... Le5 1.Sd5#. But the symmetrical solution -1... e7xSd6 etc. seems legal too. (2004-03-22)
A.Buchanan: Yes bBf8 would have died at home but bPc could capture twice to promote on c1 or e1 (2023-03-31)
A.Buchanan: Odd. The diagram is thematically symmetric, so not just missing a unit. WinChloe has the same diagram. I wondering if we are missing something from the stipulation. Does anyone have access to an archive for this? It's also odd that it was reprinted: surely there would be a comment there? I suppose it can be rendered sound by placing wTTSS somewhere symmetric. Then Black runs out of pawn captures if sLd4 is promoted. In any case, wPh7xg8=S is affordable. (2023-04-01)
Mario Richter: The reprint in 'Problem' says: "Ne e7xSd6 radi nepravilne postave" ("Not e7xSd6 because of illegal Position.") The diagram in 'Problem' is the same as here in the PDB.
How about adding black pawns on b7 and g2? (2023-04-01)
A.Buchanan: Hi Mario. I considered adding sBb5e2. That gives 10 needed captures by Black and 6 by White, including sLf8. So the try fails for *two* reasons. sBb7g2 fails even more badly. I thought that also adding wTTSS although more uneconomical in pieces defeats the try for only one reason. Also I liked the trick h7xg8=S. And it must make it harder to find the solution. Does Rawbats do simple retractors? Can you try wTa0h1 wSa7g1 as a risky initial bid, and then back off until there are no cooks? (2023-04-01)
Mario Richter: Hi Andrew, I was well aware that with adding sBb5e2 or sBb7g2 the try fails for two reasons (for [subjective] optical reasons I preferred sBb7g2 to sBb5e2]). The reason I suggested the addition of 2 black pawns was the following consideration: I cannot believe that such an experienced Retro Composer like C.E. Kemp could make such a big mistake. It's much more likely that the printer made an error by omitting two pieces.
On the other hand, if we want to correct the problem including a unique reason for the try to fail, your suggestion of adding wTa8h1+wSa7g1 (FEN=R7/N4pp1/1P1pnkp1/5n2/3b1p2/1PP5/1PP2P2/K5NR) works - rawbats gives exactly R: 1. ... Bg5xSf4, dann 1. Ld4-e5 Sf4-d5# (and says about R: Be7xSd6 - "Illegal: Mehr schwarze Bauern-Schlaege notwendig als weisse Steine fehlen") (2023-04-01)
A.Buchanan: Hi Mario, thanks for this, I agree with everything you say. It's curious that the reprint in Problem did not pick up the error. Any overlooked black units are more likely to have been lurking on dark squares, maybe sBb4d2. This forces the try to only fail for 1 reason, albeit rather banal. Does this work. Or the +wTTSS mentioned forces the solver to do a little more counting, and there is a lot more solving space to search for the h#1. Rawbats' conversational skills seem to have improved: have you integrated it with ChatGPT maybe? (2023-04-02)
comment
Keywords: Help retractor, Symmetrical position, Asymmetrical solution
Genre: Retro
FEN: 8/5pp1/1P1pnkp1/5n2/3b1p2/1PP5/1PP2P2/K7
Reprints: (24) Problem 83-86 09/1962
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-04-02 more...
2 - 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...
3 - 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...
4 - 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...
5 - 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...
6 - 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...
7 - 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...
8 - 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...
9 - 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...
10 - 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...
11 - 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...
12 - 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...
13 - 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...
14 - 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...
15 - 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...
16 - 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...
17 - 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...
18 - 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...
19 - 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...
20 - 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...
21 - 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...
22 - 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...
23 - 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...
24 - 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...
25 - 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...
26 - 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...
27 - 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...
28 - 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...
29 - 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...
30 - 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...
31 - 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...
32 - 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...
33 - 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...
34 - 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...
35 - 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...
36 - 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...
37 - 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...
38 - 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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The problems of this query have been registered by the following contributors:

Gerd Wilts (3)
Hans-Jürgen Schäfer (1)
Frank Müller (4)
Erich Bartel (1)
Felber, Volker (14)
Zuncke/Bruder (4)
Mario Richter (1)
Kurt Keller (2)
A.Buchanan (1)
Gunter Jordan (3)
Rainer Staudte (4)