Die Schwalbe

90 problem(s) found in 3805 milliseconds (displaying 90 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT K='Miniatur' AND K='Eckmatt'] [download as LaTeX]

1 - P0577550
Johann J. Chaschtschanski
14447 Schach , p. 79, 03/2000
P0577550
(3+9)
h#7
b) sTc2 nach h6
a) 1. Txg2 Kxg2 2. Ld4 Kh1 3. Le5 fxe5 4. Kf4 e6 5. Kg5 e7 6. Kh4 e8=D 7. Kh3 Dxh5#
b) 1. gxf3ep gxf3 2. Ke5 Kg2 3. Le4 fxe4 4. Kf6 exf5 5. Kg7 f6 6. Kh8 f7 7. Th7 f8=D#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-11-24)
comment
Keywords: Switchback (K in a), Entblockung, Promotion (D), Promotion in the mating move (D in b), Twin, En passant as key, Selfblock (in b), Corner mate (in b), Model mate (in b)
Genre: h#, Retro
FEN: 8/8/8/5p1p/4kPp1/3bb1p1/2r3Pp/7K
Input: hpr, 2000-10-27
Last update: Gunter Jordan, 2020-11-25 more...
2 - P1014577
Jewgeni F. Tischtschenko
Magadanski Komsomolez 03/06/1990
P1014577
(2+3)
a) S#2
b) #2
a) 1. Dc1+ Db1 2. Db2+ Dxb2#
b) 1. Dd4+ Db2+ 2. Dxb2#
1. ... Kb1 2. Dd1#
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1039
SCHRECKE: a)+b): C+, popeye 4.87 (2023-06-22)
comment
Keywords: Minimal (D), Twin, Cross check (in b), Aristocrat, Stipulation change, Corner mate (in b)
FEN: 8/1q6/2b5/2Q5/8/K7/8/k7
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Gunter Jordan, 2023-06-22 more...
3 - P1045245
Claus Grupen
D1114 Problem Observer 11/1993
P1045245
(6+2) C+
#3
1. Tb1! (Z) Kg7 2. Db7+ Kh8 3. Db2#
2. ... Kf6 3. Tb6#
2. ... Kf8,Kh6 3. h8=D,h8=T#
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BS Problemid: 30253
Authors: Grupen, Claus
Sources:
Years: 1993
Mattdual
HBae: Vorgänger P1046173 (Ado Kraemer) (2023-03-24)
comment
Keywords: Brian Stephenson Collection (30253), Minimal (b), Square vacation, white Bristol, Corner mate, Flight-giving key
Genre: 3#
Computer test: Gustav 4.1 a
FEN: 7k/1R5P/8/8/5P2/8/2B4p/K6Q
Input: Brian Stephenson, 2004-08-12
Last update: Gunter Jordan, 2023-03-24 more...
4 - P1053533
Ödön Nagy
Good Companions 1922
1. Preis
P1053533
(8+9) C+
#3
1. Sc3! b6 2. Sa4 f5 Da1# 2. ... Sg6 3. Da8#
1. ... f5 2. Se4 f4 3. Da1#
1. ... Sg6 2. Dxh7+ Sh4 3. Db1#
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more ...
comment
Keywords: Brian Stephenson Collection (38576), Zugzwang-Goal, Line opening, corner to corner (zweifach), Corner mate (zweifach), Edge to edge
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 5n1Q/1p2p2b/4Pp2/1P4p1/6p1/p3B1P1/K2R4/3N3k
Reprints: 1757 Deutsche Schachblätter 5, p. 117, 05/1975
143 Rätselvolle Schachaufgaben , p. 81, 1980
LXVII Ungarische Schachproblem Anthologie , p. 81, 1983
71 Razem 13 03/1985
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-08-03 more...
5 - P1054020
Hans Vetter
? 1918
1. Preis
Adolf Anderssen-Gedenkturnier 1918/19
P1054020
(4+12) C+
#4
1. Db7? Ld4! 1. Thxh2? Lxh2 2. Db7 Le5!
1. Df7! Te6 2. Thxh2 Lxh2 3. Db7 Le5 4. Dxh1#
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Henrik Juel: C+ Popeye 4.61, except for some mate duals (2022-07-15)
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comment
Keywords: Brian Stephenson Collection (39066), Rook sacrifice, Corner mate, Grimshaw (Römer), Line closure
Genre: n#
Computer test: HJ: Popeye 4.61
FEN: 1n6/7Q/3p2pK/5bpR/6p1/3p4/3R3p/k3r1bn
Reprints: 359 Arbeiter-Schachzeitung (Chemnitz) 1, p. 12, 01/1920
378 Das schwarze Schnittpunktgefüge [Klinke] , p. 176, 1924
987 FIDE Album 1914-1944/II , p. 184, 1972
848 Beispiele zur Ideengeschichte des Schachproblems , p. 179, 1982
Schach , p. 87, 07/1996
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-07-16 more...
6 - P1072448
Reinhardt Fiebig
StrateGems 2006
P1072448
(2+15)
h#14
1. Se1 Kxg1 2. f6 Kh1 3. f5 Kg1 4. f4 Kh1 5. f3 Kg1 6. f2+ Kh1 7. f1=S Kg1 8. Sg3 hxg3 9. Sg2+ Kh2 10. Sf4 gxf4 11. e1=T f5 12. Tg1 f6 13. Tg7 f7 14. Th7 f8=D#
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Duplicate Diagram: P1194014

SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-10-12)
comment
Keywords: Minimal (B), under-promotion (ts), Promotion (D), konsekutive Umwandlungen 3 (stD), Antiphönix, Corner mate, Model mate, Excelsior white, Excelsior black
Genre: h#
FEN: 7k/5p2/8/8/8/3ppn1p/1pppp2P/brrq2nK
Input: hpr, 2007-04-09
Last update: Gunter Jordan, 2021-10-11 more...
7 - P1090925
Jacques Rotenberg
128 Phénix 10/1988
1. ehrende Erwähnung
P1090925
(6+2) C+
s#8*
* 1. ... Lb7 2. Dc6 Lxc6#
1. Sb8! Lb7 2. Sd7 Lc6 3. Sf8 Lb7 4. Dc6 Kb8 5. Se6 Ka8 6. Sc7+ Kb8 7. Sa6+ Ka8 8. Ta1 Lxc6#
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Frank Müller: läßt sich mit wDf3 und sLe4 um zwei Züge erweitern
Hier liegt Keine Vorgängerschaft vor, denn es wird ein interessanter 6-zügiger Rundlauf des wS gezeigt!
paul: Anticipated by P1186964 (Schildberg) (2022-09-14)
Jacques Rotenberg: not at all anticipated !!
the solution is completely different (2022-12-04)
Jacques Rotenberg: the P1186964 itself is anticipated! (2022-12-04)
Jacques Rotenberg: about P1186964 see P1186601 (2022-12-04)
Iwan Soroka: @paul. P1186964 is kein Vorgänger zu P1090925. Was genau ist anticipated? (2022-12-04)
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comment
Keywords: Minimal (l), Corner mate, Model mate, Switchback (Skl), Tempo Loss, Round Trip (S-6)
Genre: s#
Computer test: I. Soroka: Gustav 3.2 d
FEN: k7/8/N1b5/3Q4/8/8/7P/1R4BK
Input: Frank Müller, 2009-09-09
Last update: Gunter Jordan, 2022-12-05 more...
8 - P1098372
Jorma Pitkänen
The Problemist 01/2001
Neujahrsgruß
P1098372
(4+9)
s#14
1. a8=D+ Sf3 2. Dxf3+ Kg1 3. Lh2+ Kxh2 4. Kb4 Kg1 5. Kxc3 Kh2 6. Kd4 Kg1 7. Ke5 Kh2 8. Kf6 Kg1 9. Kg7 Kh2 10. Kh8 Kg1 11. Se2+ Kh2 12. Dg3+ Kh1 13. Sf4 c1=D,c1=~ 14. Dg2+ Txg2#
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Moldenhauer: Computerprüfung: C+ Gustav 4.1d 4 Tage 6 Std. 38 Min.
Gustav hat nur im 13. Zug Se2-f4 c2-c1D. Warum nicht c2-c1T? (2022-12-15)
Olaf Jenkner: Weil es schöner aussieht.
Man sieht alle Varianten, wenn "Züge nicht zusammenfassen" aktiviert ist. (2022-12-16)
Moldenhauer: Danke!! Ein Gutes Neues auch von mir!! (2022-12-16)
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comment
Keywords: Königswanderung, Schlüssel = Eckzug, Promotion key, Promotion (D), discovered checkmate, Corner mate, Batteriematt diagonal
Genre: s#
FEN: 1B6/P7/8/8/8/Kpp5/prp5/bbN3nk
Reprints: 12) idee & form 154, p. 5215, 04/2022
Input: Frank Müller, 2010-01-22
Last update: Olaf Jenkner, 2022-12-16 more...
9 - P1102620
Camillo Gamnitzer
580 Variantim 02/1997
Israel Ringturnier 1996/97
Lob
P1102620
(10+10) C+
s#6
1. La8! droht 2. Sc3+ c6 3. Dg2+ hxg2#
1. ... c5 2. bxc4 droht 3. Sd4+ cxd4 4. Dd1+ Dxd1#
2. ... Sxc2 3. Dd3+ Se3 4. Sxf2+ Kxf2 5. Dxe3+ Kf1 6. Lg2+ hxg2#
2. ... Db4 3. Sd4+ cxd4 4. f8=D,T+ Dxf8 5. Sc3+ Dxa8 6. Dg2+ hxg2#
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Anton Baumann: es muss heissen:
2. ... Db4 3.Sd4+ cxd4 4.f8=D,T+ Dxf8 5.Sc3+ Dxa8 6.Dg2+ hxg2# (2022-11-14)
Henrik Juel: C+ Popeye 4.61, except for the promotion dual 4.f8=DT+ (2022-11-20)
comment
Keywords: Schlüssel = Eckzug, Corner mate
Genre: s#
FEN: 8/2p2P2/8/pp1B4/q1p1N1p1/nP3kPp/2NP1p1P/5Q1K
Input: Frank Müller, 2010-04-05
Last update: Marcin Banaszek, 2022-11-27 more...
10 - P1165005
Otto Dehler
356 Mitteldeutsche Zeitung 20/10/1934
P1165005
(3+2)
#5
1. Sb3! Kg1 2. Sd2 Kh1 3. Se4 Kg1 4. Sf3+ Kf1 5. Sd2#
4. ... Kh1 5. Sf2#
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A12SS4 m
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-08-06)
comment
Keywords: Minimal (b), Corner mate, Ideal mate (Gnaden-)
Genre: n#
FEN: 8/8/8/8/8/6K1/4p3/2N1N2k
Input: Zuncke/Bruder, 2010-09-12
Last update: Gunter Jordan, 2024-02-29 more...
11 - P1176610
Gunter Jordan
347 harmonie 09/1997
3. Lob
PR Manfred Seidel
P1176610
(9+5) C+
s#5
1. La2 a6 2. Sd5 axb5 3. Tf1 b4 4. Tf6 b3 5. Lb1 b2#
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more ...
comment
Keywords: Corner mate, Pawn mate, Interchange (zyklisch LST)
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/p5B1/5N1P/pP1B4/p7/k2pP3/3P4/KR6
Input: Frank Müller, 2010-09-16
Last update: Arnold Beine, 2021-04-04 more...
12 - P1197230
Friedrich Hariuc
The Problemist 07/1980
Minimalturnier
4. ehrende Erwähnung
P1197230
(2+12)
#41
1. Se4 Sd3 2. Ka2 Sb4+,Sc1+ 3. Kb2 Sd3+ 4. Ka3 e6 5. Ka2 Sb4+,Sc1+ 6. Kb2 Sd3+ 7. Ka3 e5 8. Ka2 Sb4+,Sc1+ 9. Kb2 a3+ 10. Kxa3 Sd3 11. Ka2 Sb4+,Sc1+ 12. Kb2 Sd3+ 13. Ka3 a4 14. Ka2 Sb4+,Sc1+ 15. Kb2 Sd3+ 16. Ka3 a5 17. Ka2 Sb4+,Sc1+ 18. Kb2 Sd3+ 19. Ka3 a6 20. Ka2 Sb4+,Sc1+ 21. Kb2 a3+ 22. Kxa3 Sd3 23. Ka2 Sb4+,Sc1+ 24. Kb2 Sd3 25. Ka3 a4 26. Ka2 Sb4+,Sc1+ 27. Kb2 Sd3+ 28. Ka3 a5 29. Ka2 Sb4+,Sc1+ 30. Kb2 a3+ 31. Kxa3 Sd3 32. Ka2 Sb4+,Sc1+ 33. Kb2 Sd3+ 34. Ka3 a4 35. Ka2 Sb4+,Sc1+ 36. Kb2 a3+ 37. Kxa3 Sd3 38. Ka2 Sb4+,Sc1+ 39. Kb2 Sd3+ 40. Ka3 ... 41. Sf2,Sg3#
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Anton Baumann: C+ Gustav 4.1d (2021-08-19)
comment
Keywords: Minimal (S), Round Trip (K-3), Switchback (s), Corner mate, Model mate, Smothered mate
Genre: n#
FEN: 8/p3p3/p7/p5N1/p2p4/K7/6pp/2n2nrk
Input: Frank Müller, 2011-06-10
Last update: Gunter Jordan, 2021-09-11 more...
13 - P1238251
Reinhardt Fiebig
1215 Springaren , p. 104, 06/2009
P1238251
(5+5)
h#7
1. Sc6 a3 2. Sd4 a4 3. Sxe2 a5 4. Sd4 La6+ 5. Ka8 Lc8 6. Sc6 a6 7. Sb8 Lb7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-10-26)
comment
Keywords: Rücknahme Schlüsselzug, Rückkehr nach Umwandlung (s), Corner mate, Model mate, Entblockung
Genre: h#
FEN: 1n6/pk6/8/8/8/4p1p1/P3P1P1/5B1K
Input: Felber, Volker, 2012-05-07
Last update: Gunter Jordan, 2021-10-26 more...
14 - P1247486
Peter Heyl
459 Gaudium 100 03/2010
P1247486
(9+8)
s#6
Degradierung
1. Sc5! droht 2. Sd3 ... 3. Sb2[=wB]+ cxb2#
1. ... bxc5 2. f8=S Lb6 3. Sd7! La7[=sB],La5 4. Sxc5 ... 5. Sd3 ... 6. Sb2[=wB]+ cxb2#
3. Sg6? La7[=sB] 4.Sf4 a5 5. Sd3 patt
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SCHRECKE: C+, popeye 4.87 (2023-03-06)
comment
Keywords: Relegation Chess, Phoenix, under-promotion (S), Corner mate, Pawn mate
Genre: Fairies
FEN: 8/2p2P2/1pp1P3/b3P3/PpP1N3/kPp5/p1P5/K7
Input: Gunter Jordan, 2012-08-21
Last update: Gunter Jordan, 2023-03-04 more...
15 - P1257014
Achim Schöneberg
3708 Problemkiste (98) 04/1995
P1257014
(6+3)
ser-h#4
b) sLf4->sTf4
a) 1. Lxb8 2. Le5 3. Lxb2 4. Lh8 Dxh8#
b) 1. Txe4 2. Txb4 3. Th4 4. Th1 Dxh1#
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Jeweils 2-mal Beseitigung weißer Masse und Opfer
auf dem Mattfeld (Autor).
SCHRECKE: C+, Gustav 4.2c, Brute Force (2023-04-14)
comment
Keywords: Seriesmover, Forsberg Twins, Capture key, corner to corner (D), Corner mate, Model mate, Line opening
Genre: Fairies
Computer test: %C+ lt.Autor
FEN: QR6/8/K7/8/1P2Bb2/8/pP6/k7
Input: Erich Bartel, 2012-12-21
Last update: Gunter Jordan, 2023-04-14 more...
16 - P1281455
Sebastien Luce
10656 feenschach 197 01-02/2013
P1281455
(8+2) C+
s#12
1. Gf8! Kb1 2. Gf6 Kc1 3. Gf5 Kd1 4. Gf4 Ke1 5. Gg6 Kd1,Kf1 6. Gf3+ Ke1 7. Gc1 Kf1 8. Ga3 Ke1 9. Gg3 Kf1 10. Gg2 Ke1 11. Ge3+ Kf1 12. Gd1 hxg2#
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more ...
comment
Keywords: Minimal (b), Pawn mate, Selfblock, Corner mate, Model mate
Pieces: du = Grasshopper (G)
Genre: Fairies
FEN: 8/5*2Q2/8/8/8/7p/1*2Q*2Q*2Q*2Q*2Q1*2Q/k6K
Input: Frank Müller, 2013-12-23
Last update: Gunter Jordan, 2021-03-02 more...
17 - P1282500
Nicolay V. Rezvov
9791 Ideal-Mate Review (73) -1-03/1999
Lob Informalturnier
Richter: Eugene Albert
P1282500
(2+4)
h=6
1. h1=L d4 2. Lc6 d5 3. e1=T dxc6 4. Te8 c7 5. Tb8 cxb8=T 6. Lb2+ Txb2=
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Anton Baumann: C+ Gustav 4.1d (2020-12-11)
comment
Keywords: Excelsior, under-promotion key (L-4), Minimal (B), under-promotion (ttl), konsekutive Umwandlungen 3 (ltt), Ideal stalemate, Antiphönix (3-fach), Corner mate (-patt)
Genre: Fairies
FEN: 8/8/8/8/8/2K5/3Pp2p/k1b5
Input: Erich Bartel, 2014-01-23
Last update: Gunter Jordan, 2022-02-18 more...
18 - P1289308
Steven B. Dowd
SoH1422 Springaren (131) 03/2014
2. Preis
PR Ingemar Lind
P1289308
(8+2) C+
s#7*
2 Lösungen
* 1. ... Dxa6#
1. Se3+ Kxb4 2. S1c2+ Kc5 3. Tc3+ Dc4 4. Te8 Dxc3 5. Db5+ Kd6 6. Sf5+ Kc7 7. Da5+ Dxa5#
1. Te3 Kd5 2. Lb3+ Dc4 3. Db5+ Kd6 4. Td8+ Kc7 5. Db8+ Kc6 6. La4+ Db5 7. Ka7 Dxa4#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-10)
comment
Keywords: Fata Morgana, Corner mate
Genre: s#
FEN: KR6/8/Q7/1q6/BPk5/3R4/2N5/4N3
Reprints: 108 feenschach 237, p. 275, 09-10/2019
Input: Frank Müller, 2014-10-17
Last update: Gunter Jordan, 2021-06-20 more...
19 - P1315401
Sergii I. Tkachenko
11649 Schach-Echo , p. 347, 09/1991
P1315401
(7+8)
h#15
1. Lf2 a3 2. Le1 Kg1 3. Ld2 Kh1 4. Lc1 Kg1 5. Lxa3 Kh1 6. Lc5 Kg1 7. a3 Kh1 8. a2 Kg1 9. a1=S Kh1 10. Sb3 cxb3 11. c2 b4 12. c1=T bxc5 13. Tb1 c6 14. Tb7 c7 15. Ta7 c8=D#
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Schachecke in SE ab 01/1992 eingestellt. Lösung bis 12/1991 nicht veröffentlicht.
Henrik Juel: solution
1.Lf2 a3 2.Le1 Kg1 3.Ld2 Kh1 4.Lc1 Kg1 5.Lxa3 Kh1 6.Lc5 Kg1 7.a3 Kh1 8.a2 Kg1 9.a1=S Kh1 10.Sb3 cxb3 11.c2 b4 12.c1=T bxc5 13.Tb1 c6 14.Tb7 c7 15.Ta7 c8=D#
Three promotions (2016-01-13)
SCHRECKE: Ab 6. Zug dualistisch, z.B.: 6. Lb4 Kg1 7. a3 Kh1 8. a2 Kg1 9. a1=S Kh1 10. Sb3 cxb3 11. Ld6 b4 12. c2 b5 13. c1=S b6 14. Sxe2 Lxe2 15. Lb8 Lf3# (2023-07-24)
comment
Keywords: Promotion in the mating move, konsekutive Umwandlungen 3 (stD), Switchback (K), Entblockung, Selfblock, Corner mate, Excelsior white, Antiphönix
Genre: h#
FEN: k7/8/p7/8/p2p4/2pPp1p1/P1P1P1P1/5BbK
Input: Felber, Volker, 2016-01-13
Last update: Gunter Jordan, 2023-07-23 more...
20 - P1317816
Peter Hoffmann
16412 Die Schwalbe 274, p. 201, 08/2015
nach Gerhard Pfeiffer & Reinhard Fiebig
spezielle ehrende Erwähnung
Abt. h#-Mehrzüger
PR Boris Schorochow
P1317816
(2+14) C+
h#8
0.1.1...
1. ... Kb2 2. Db3+ axb3 3. f1=D b4 4. Df4 bxc5 5. Dd6 cxd6 6. g1=D d7 7. Dg6 d8=S 8. Dh7 Sf7#
play all play one stop play next play all
Rolf Wiehagen: Siehe P0500863, Gerhard Pfeiffer 1985, mit 10 schwarzen Bauern, und P1087039, Reinhardt Fiebig 2005, mit 9 schwarzen Bauern.
Spezielle ehrende Erwähnung von Preisrichter Boris Shorokhov, der in seinem Preisbericht schreibt:
"Für drei Umwandlungen schwarzer Bauern in Damen werden neun Züge benötigt. Bisher gelang dies nur mit zu vielen schwarzen Bauern, d.h. in illegaler Stellung. Der Autor dieser Aufgabe vermeidet solche Positionen, aber die erste Umwandlung in eine Dame ist retroanalytisch begründet, offensichtlich war 1. d1=D+ der letzte schwarze Zug. Natürlich ist das nicht dasselbe, aber nach meiner Meinung verdient die Findigkeit des Autors eine spezielle Auszeichnung." (2021-04-22)
James Malcom: This problem is mentioned on berlinthema.de on 159 of this document: http://www.berlinthema.de/AUSWAHL_PH.pdf (2022-01-31)
A.Buchanan: It would be cool if our keyword system distinguished cleanly between retro & forward promotions. However we have too much clutter in the current vocabulary to extend in this way right now, imho. (2022-01-31)
comment
Keywords: Minimal (B), Oudot Theme, konsekutive Umwandlungen 4 (dddS), Excelsior white, under-promotion (S), Promotion (d), Model mate, Selfblock, Smothered mate, Corner mate, Phoenix, Antiphönix
Genre: h#, Retro
FEN: 6nk/6n1/8/2b2p2/p2p3p/8/P1K1ppp1/r2qr3
Input: Felber, Volker, 2016-02-29
Last update: Gunter Jordan, 2022-02-02 more...
21 - P1349130
Gunter Jordan
3992 Best Problems 86 04/2018
P1349130
(6+4) C+
s#3
AMU
wDR=Equihopper
1. Td2? (Z) d5? 2. Td3 d4 3. E4g2 hxg2#, aber 1. ... d6!
1. Td4! (Z) d6 2. Te3 d5 3. E8g2 hxg2#
1. ... d5 2. Td3 d4 3. E4g2 hxg2#
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more ...
comment
Keywords: Pawn mate, Corner mate, Model mate, Pawn step variations
Pieces: dr = Equihopper (E)
Genre: Fairies
Computer test: Popeye Windows-64Bit v4.75 (1024 MB)
FEN: *1Q3R3/3p4/3R4/8/*1Q7/7p/5p1P/5k1K
Input: Gunter Jordan, 2018-04-12
Last update: James Malcom, 2020-09-28 more...
22 - P1374286
Valery Barsukov
14463 Springaren 152 12/2019
P1374286
(4+5) C+ cooked
h#6
0.2.1...
1) 1. ... e4 2. c3 e5 3. c2 e6 4. c1=D,T exd7 5. Dc8,Tc8 dxc8=D 6. a2 Dc1#
2) 1. ... g4 2. Kb2 g5 3. Kc3 g6 4. Kd4 g7 5. Kxd5 g8=D 6. Kc6 Dxc4#
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Cook: Umwandlungsdual (in 1)
Olaf Jenkner: Warum steht hier C+ ? Die Aufgabe ist doch eindeutig inkorrekt. (2020-04-13)
Gunter Jordan: Hm. Berechtigter Einwand. Das C+ stand in der Originalquelle am Diagramm. (2021-01-26)
comment
Keywords: Corner mate (in 1), Excelsior white, Kindergarten Problem, Model mate, Phoenix (Anti-), Promotions to queens
Genre: h#
Computer test: Gustav 4.0 i
FEN: 8/K2p4/3p4/3P4/2p5/p7/4P1P1/k7
Input: Gunter Jordan, 2020-04-07
Last update: Alfred Pfeiffer, 2020-04-07 more...
23 - P1380560
Mirko Degenkolbe
Steven B. Dowd

Orbit 2007
Tivadar Kardos gewidmet (und nach)
nach Tivadar Kardos
P1380560
(2+9) C+
h#10v
1. Lg1 Kxg1 2. e2 Kh1 3. e1=S Kg1 4. Sf3 gxf3 5. e3 f4 6. e2 fxe5 7. e1=S e6 8. Sd3 e7 9. Sc5 e8=S 10. Sb7 Sc7#
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Der Versuch 1.Le1? …Kg1 2.e2?? Kh1 3.e1S?? scheitert an schwarzer Seklbstbehinderung.
SCHRECKE: Kardos: P0500795 (2020-10-16)
comment
Keywords: Minimal (B), Sacrifice key, under-promotion (ssS), konsekutive Umwandlungen 3, Smothered mate, Antiphönix, Phoenix, Corner mate, Stalemate dissolution
Genre: h#
Computer test: Gustav 4.0c
FEN: kn6/n7/p7/4p3/4p3/4p1p1/5bP1/7K
Input: Felber, Volker, 2020-10-03
Last update: Felber, Volker, 2021-10-30 more...
24 - P1380656
Charles Q. de France
50 The Omaha Daily Bee 20/11/1898
P1380656
(3+2) C+
#5
1. Kf3! Kh2 2. Kf2 droht 3. Lf4+ Kh1 4. Le4#
3. ... Kh3 4. Lf5#
2. ... Kh3 3. Lf5+ Kh2 4. Lf4+ Kh1 5. Le4#
play all play one stop play next play all
'Omaha Daily Bee' zum Autor: "C. Q. De France, Lincoln"
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-05)
comment
Keywords: Flight taking, Minimal (b), Corner mate
Genre: n#
Computer test: SCHRECKE (2020-10-05): C+, Gustav 4.1d, Brute Force
FEN: 8/7B/7B/8/5K1p/7k/8/8
Input: Rainer Staudte, 2020-10-05
Last update: Mario Richter, 2020-10-06 more...
25 - P1381149
Jacques Rotenberg
Tehtäväniekka 2018
3. Preis
Syväniemi-50 JT
P1381149
(3+11) C+
h#5
0.3.1...
1) 1. ... Te1 2. Sgf2 Te7 3. Kg1 Txc7 4. Tg2 Te7 5. Lxh2 Te1#
2) 1. ... Tc3 2. Kh1 Txh3 3. Se3 Tf3 4. Tg1 h4 5. Sg2 Th3#
3) 1. ... Tc4 2. Shf2 Txg4+ 3. Kh3 Tf4 4. Tg2 Txf5 5. Sg4 Th5#
play all play one stop play next play all
Jacques Rotenberg: .
a lighter version was published soon after the judgement : p.91, Tehtäväniekka (juin 19)

Weiss : Kb7 Ta1 Bh2
Schwarz : Kg2 Tg6 Lb8 Sg4h3 Bc7d7c6f5

FEN : 1b6/1Kpp4/2p3r1/5p2/6n1/7n/6kP/R7 (2022-06-08)
comment
Keywords: Corner mate (in 2), Line opening, Model mate, Switchback, Selfblock
Genre: h#
FEN: 1b6/2p5/K1p3r1/1ppp1p2/6n1/7n/6kP/2R5
Reprints: A5556 Phénix 305, p. 11938, 03/2020
Input: Gunter Jordan, 2020-10-19
Last update: Gunter Jordan, 2020-10-19 more...
26 - P1381323
Bernd Schwarzkopf
G36/12 feenschach 2017
Lob
PR Klaus Wenda
P1381323
(2+1) C+
#8
Haaner Schach
b) wSe3->h3
c) wSe3->h2
a) 1. Sc4 Ka2 2. Kc3 Kb1 3. Kd3 Kc1 4. Ke4 Kd1 5. Kf3 Ke1 6. Kg2 Ke2 7. Sa5 Kd2 8. Sb3#
b) 1. Sf4 Ka2 2. Sd5 Ka3 3. Kc3 Ka4 4. Kc4 Ka5 5. Kc5 Ka6 6. Kc6 Ka7 7. Kc7 Ka8 8. Sb6#
c) 1. Kb3 Kb1 2. Sg4 Kc1 3. Kc3 Kd1 4. Kd3 Ke1 5. Ke3 Kf1 6. Kf3 Kg1 7. Kg3 Kh1 8. Sf2#
play all play one stop play next play all
more ...
comment
Keywords: corner to corner (in b+c), Corner mate (in b+c), Haaner Chess, Minimal (S), Rex solus (s), Aristocrat
Genre: Fairies
Computer test: Popeye 4.61
FEN: 8/8/8/8/8/4N3/2K5/k7
Reprints: feenschach 236, p. 176, 07-08/2019
Input: Gunter Jordan, 2020-10-27
Last update: Alfred Pfeiffer, 2020-10-28 more...
27 - P1381558
Milomir Babic
8091 Phénix 279-280 11-12/2017
P1381558
(11+7)
s#11
1. Tb1+! Sxb1 2. Da3+ Sxa3 3. 0-0+ Sb1 4. a8=T+ La7 5. d5+ e5 6. dxe6ep+ Tg7+ 7. Kh1 e2 8. Te1 h5 9. b8=D h4 10. Db7 h3 11. Dg2 hxg2#
play all play one stop play next play all
Henrik Juel: Damaged by the dual 7... h5 8.b8=D,Te1 (2020-11-05)
paul: See P1373761 as a correction (2021-05-08)
comment
Keywords: Checking key, Castling, under-promotion (T), Promotion (D), En passant, Pawn mate, Corner mate, Pinning, pin-mate
Genre: s#
FEN: 7B/PPr1p3/7p/2b5/1NNP4/n2Qp3/1R5P/k3K2R
Input: Marcin Banaszek, 2020-11-05
Last update: Gunter Jordan, 2020-11-05 more...
28 - P1382214
Valery Liskovets
H4302 The Problemist 27-7, p. 275, 01/2020
P1382214
(10+9) C+
h#5
0.1.1...
1. ... e6 2. Lf8 exf7 3. Lc5 f8=D 4. Lb6 c5 5. Lb1 Dxf6#
play all play one stop play next play all
VL: A hideaway maneuver (bB).
Tempo-try: 1... exf6/c5? 2.Lf8 c5/exf6 3.Le7 fxe7 4.Lb1 e8=D 5.?? De5# (2020-12-04)
comment
Keywords: Promotion (D), Verstecken (l), Corner mate, Model mate
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 8/p1p2pb1/p1P2p1p/P2BPP1P/1PP1P3/8/b7/k4K2
Input: Felber, Volker, 2020-11-21
Last update: Gunter Jordan, 2020-11-21 more...
29 - P1382267
Alberto Armeni
C173 SuperProblem (Website) 05/2018
P1382267
(4+1) C+
#4
1. Sd2! Ke1 2. Kc2 Ke2 3. Lc4+ Ke1 4. Sf3#
1. ... Kc1 2. Lb3 Kb2 3. Lc5 Kc1 4. La3#
3. ... Ka1 4. Ld4#
play all play one stop play next play all
more ...
comment
Keywords: Aristocrat, Rex solus (s), Model mate (Gnaden-), Corner mate
Genre: n#
Computer test: Popeye 4.61
FEN: 6B1/8/8/8/2N5/3K4/8/3k2B1
Input: Rainer Staudte, 2020-11-21
Last update: Gunter Jordan, 2020-12-10 more...
30 - P1384854
Fadil Abdurahmanovic
Problem Paradise 10-12/2017
P1384854
(2+9) C+
h#5
1. Lf7 Le5 2. 0-0 Lxg7 3. Te8 Lh6 4. Kh8 Lf4 5. Lg8 Le5#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-01-02)
comment
Keywords: Corner mate, Klasinc theme (l-k/t), Line opening, Minimal (L), interchange in mating position (k-t), Castling, Switchback (Ll), Round Trip (L-4)
Genre: h#
Computer test: C+ Popeye 4.61
FEN: 3qk1br/r3p1pp/4p3/8/8/8/7B/1K6
Reprints: D Probleemblad 2/80, p. 34, 04-06/2022
Input: Gunter Jordan, 2021-01-01
Last update: Gunter Jordan, 2022-07-01 more...
31 - P1385631
Christer Jonsson
Kivanc Cefle


2. Lob
Gennady Kozura 64 JT 2019
P1385631
(3+6)
h#6
2.1...
1) 1. Kxh2 a3 2. Kg3 a4 3. Kf4 a5 4. Ke5 a6 5. Kd6 a7 6. Kc7 axb8=D#
2) 1. Lxh2 a4 2. g5 axb5 3. g4 bxc6 4. g3 cxd7 5. g2 d8=D 6. g1=L Dd5#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-01-22)
comment
Keywords: Corner mate (in 2), Excelsior black (in 2), Excelsior white, Königswanderung (in 1), konsekutive Umwandlungen 2 (Dl in 2), Model mate (in 2), Selfblock (in 2), Tempo Loss (in 1), Promotion in the mating move (in 1), Promotions to queens, under-promotion (l in 2)
Genre: h#
FEN: Kb6/3p2p1/2p5/1p6/8/8/P6Q/7k
Reprints: L Springaren 154, p. 57, 06/2020
Input: Gunter Jordan, 2021-01-22
Last update: Gunter Jordan, 2021-01-22 more...
32 - P1385834
Daniele Gatti
1473 Sinfonie Scacchistiche 142 10-12/2020
P1385834
(12+8) C+
s#11
1. b2-b3+! Ka4-b5 2. c3-c4+ Kb5-c6 3. d4-d5+ Kc6xd7 4. e5-e6+ Kd7-e8 5. f6-f7+ Ke8-f8 6. Ld8xa5+ Kf8-g7 7. Df4xe3 Kg7-f6 8. De3-g1 Kf6-e5 9. Dg1-f1 Ke5-d4 10. Df1-e2 Kd4-c3 11. De2-b2+ a3xb2#
play all play one stop play next play all
more ...
comment
Keywords: Checking key, Corner mate, Pawn mate
Genre: s#
Computer test: Popeye 4.61 with 'opt non 0 1' found no flaws
FEN: R2B4/3Rp3/3p1P2/b1p1P3/kp1P1Q2/p1P1p3/PP6/KB6
Input: Marcin Banaszek, 2021-01-27
Last update: Alfred Pfeiffer, 2021-01-27 more...
33 - 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...
34 - P1386489
Aurel M. Karpati
Adrian Storisteanu
Yuri Bilokin
Hans-Jürgen Manthey
Viktoras Paliulionis
Andrew Buchanan

PDB Website 15/02/2021
AK, correction AS, YB, HJM, VP & AB
P1386489
(7+4) C+
h#5
1. b2xa1=S Sc4 2. Sxb3 Se3 3. Sd4 Lc4 4. Sdf3 Lf1 5. Sg1 Lg2#
play all play one stop play next play all
corrects and simplifies P0552475
A.Buchanan: Please forgive me but I think “under-promotion” is only meaningful for directmates and studies. That’s why I had put in promotion as a keyword, not under-promotion. In helpmates, promotions need to be distinguished of course, and we can put in the officer type in the parameter slot. Under-promotion would still need such a parameter because it’s inexact itself: the worst of all worlds. Even for directmates and studies of course some people consider knight promotion not to be an under-promotion at all, but I wouldn’t go that far myself. There are far too many keywords covering promotion, and at some time we should clean them up, but in the mean time I am open to considering another opinion if it is explained to me. Thank you. (2021-02-15)
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comment
Keywords: Promotion (s), Schlüssel = Eckzug, Promotion key (s), Corner mate, Selfblock, Model mate, Entblockung
Genre: h#
Computer test: Popeye v4.85
FEN: 8/8/1N6/3P4/8/1Pp5/BpP4n/NK5k
Input: A.Buchanan, 2021-02-15
Last update: A.Buchanan, 2021-02-18 more...
35 - P1386948
Petre Stojoski
Chorno-bili stezhyny 4/53, p. 31, 10-12/2016
3. ehrende Erwähnung
JT Waleri Stankewitsch-85
PR Alexandr Semenenko
P1386948
(8+11) C+
h#5
1. Td1 Kg1 2. Txd2 Td1 3. Tf2 Txd3 4. Tff7 Lc3+ 5. Tfg7 Td8#
play all play one stop play next play all
Eine Art von Fesselungstransformation (reziprok): In der Diagrammstellung fesselt der sT den wL, in der Mattstellung der wL den sT!
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comment
Keywords: bi-coloured Bristol, Corner mate, Pinning, pin-mate, Change of Pins, Line opening, Model mate
Genre: h#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-03)
FEN: 7k/7r/8/2p5/p1P1p1p1/Pp1pP1Pp/1p1P4/Rr2BK2
Input: Gunter Jordan, 2021-03-03
Last update: Erich Bartel, 2021-03-03 more...
36 - P1386957
Oleksandr Spitsyn
Chorno-bili stezhyny 4/53, p. 32, 10-12/2016
4. ehrende Erwähnung
JT Waleri Stankewitsch-85
PR Alexandr Semenenko
P1386957
(2+8) C+
h#5
1. Tc3 bxc3 2. Dd4 cxd4 3. Se5+ dxe5 4. Tf6+ exf6 5. Lg8 fxg7#
play all play one stop play next play all
Yuri Bilokin: more economical bRf7-b4(-bPb4), bQd5-h4, bNc4-c6 7k/6b1/2n3K1/8/1r5q/1r6/bP6/8 (2+7) h#5
1.Rc3 bxc3 2.Rd4 cxd4 3.Se5+ dxe5 4.Qf6+ exf6 5.Bg8 fxg7# (IM)
Active sacrifice (black) × 4
Ideal mate (2022-12-01)
more ...
comment
Keywords: Corner mate, Line opening, Minimal (B), Model mate, Sacrifice of black pieces, Selfblock
Genre: h#
Computer test: C+, Gustav 4.1d, Brute Force
FEN: 7k/5rb1/6K1/3q4/1pn5/1r6/bP6/8
Input: Gunter Jordan, 2021-03-03
Last update: A.Buchanan, 2022-12-01 more...
37 - P1387016
Ingolf Mai
19317 Schach , p. 79, 11/2020
P1387016
(8+5) C+
s#11
1. Lh3! Kxh3 2. f5 Kh4 3. f4 Kh3 4. f6 Kh4 5. f7 Kh3 6. f8=L Kh4 7. Lc5 Kh3 8. Lxa7 Kh4 9. Lb8 Kh3 10. a7 Kh4 11. Dxg2 Lxg2#
play all play one stop play next play all
19.317 (Mai) 1.Lh3! (ZZ) K:h3 2.f5 Kh4 3.f4 Kh3 4.f6 Kh4 5.f7 Kh3 6.f8L Kh4 7.Lc5 Kh3 8.L:a7 Kh4 9.Lb8 Kh3 10.a7 Kh4 11.D:g2 L:g2 matt (4 P.). „Eine leichte Übung, trotzdem charmant“ (MM). „Das klassische Eckmatt wird hier löserfreundlich mit attraktivem Schlüssel nebst Phönix dargeboten. Das schwache schwarze Spiel ist ein kleiner Wermutstropfen“ (GJ).
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-06)
comment
Keywords: Corner mate, Phoenix, under-promotion (L), Selfblock, Model mate, Promotion
Genre: s#
FEN: K7/p7/P3B3/4P1R1/5P1k/5Pp1/6p1/6Qb
Input: Felber, Volker, 2021-03-05
Last update: James Malcom, 2021-03-06 more...
38 - P1387183
Zoltan Labai
Chorno-bili stezhyny 4/53, p. 33, 10-12/2016
2. Lob
JT Waleri Stankewitsch-85
PR Alexandr Semenenko
P1387183
(2+14)
h#7
1. Se8 h6 2. Sg7 hxg7 3. g2 g8=L 4. g1=L Lxf7 5. La7 Lxb3 6. d5 Lxa4 7. Lhb8 Lxc6 #
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-03-08)
Viktoras Paliulionis: Keyword Antiphönix is deprecated. (2021-03-09)
comment
Keywords: Antiphönix, Corner mate, konsekutive Umwandlungen 2 (Ll), Minimal (B), Model mate, Selfblock, Promotions to bishops, under-promotion (Ll)
Genre: h#
FEN: k7/5p1p/2pp1n2/7P/b7/pp4p1/rp5b/1Kn5
Input: Gunter Jordan, 2021-03-08
Last update: Gunter Jordan, 2021-03-08 more...
39 - P1387981
Bosko Miloseski
Q0336 StrateGems 90 04-06/2020
P1387981
(1+9) C+
h=7
1. Se3 Kd2 2. Dg8 Kd3 3. Lf7 Ke4 4. La2 Kxf4 5. Lb1 Kxe3 6. Da2 Kd2 7. b3
Kc1=
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 also (2021-03-30)
comment
Keywords: Switchback (Kd), black Bristol, Corner mate (-patt), Critical move, Rex solus, Selfblock
Genre: Fairies
FEN: 8/8/8/3n3b/1p3p2/p7/qrp5/k1K5
Input: Gunter Jordan, 2021-03-30
Last update: Gunter Jordan, 2021-03-30 more...
40 - P1388468
Michael Schreckenbach
Manfred Zucker

3087 diagrammes 04-06/1994
2. Lob
P1388468
(5+4) C+
s#7
1. Tg1+! Kf2 2. Sg2 g5 3. Te1 g4 4. Te2+ Kf3 5. Te3+ Kf2 6. Df3+ gxf3 7. Te1 fxg2#
play all play one stop play next play all
(MZ847)
more ...
comment
Keywords: Interchange (TS), Queen sacrifice, Checking key, Corner mate, Pawn mate, Model mate
Genre: s#
Computer test: Gustav 4.0c Gustav 4.1d, Brute Force
FEN: 8/8/6p1/8/2p5/2P3p1/6R1/3QNk1K
Input: Felber, Volker, 2021-04-12
Last update: James Malcom, 2021-04-12 more...
41 - P1388499
Manfred Zucker
320 harmonie 50, p. 33, 06/1997
1. Lob
P1388499
(3+5) C+
s#8
1. Td5! Ke1 2. Te4 Kf1 3. Kh1 g4 4. Tg5 g3 5. Txg3 g5 6. Th3 g4 7. Th2 g3 8. Tg2 fxg2#
play all play one stop play next play all
(MZ899)
more ...
comment
Keywords: Pawn mate, Corner mate
Genre: s#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-04-13)
FEN: 8/8/6p1/6p1/6R1/5p2/3R1p1K/5k2
Input: Felber, Volker, 2021-04-13
Last update: Felber, Volker, 2021-05-11 more...
42 - P1388854
Baldur Kozdon
18321 Die Schwalbe 305 10/2020
P1388854
(4+10) C+
#12
1. Lf5? g1=D!
1. Se2-g3+! Kg1 2. Lf5 droht 3. Se2+ Kh1 4. Le4 Lb6 5. Tf1+ Lg1 6. Sg3#
2. ... h4,Lb6 3. Se2+ Kh1 4. Le4 Lb6,h4 5. Tf1+ Lg1 6. Tf6 droht 7. Tg6 ... 8. Lxg2#
6. ... Sa6 7. Tg6 Sc7+ 8. Kb8 La7+ 9. Kc8 h3 10. Tf6 ... 11. Tf1+ Lg1 12. Se2-g3#
play all play one stop play next play all
Meeraner, Urform, Themafigur: wS
more ...
comment
Keywords: Checking key, Corner mate, Meerane-Thema, Smothered mate
Genre: n#
Computer test: Baumann: Gustav 4.2a
FEN: KnBn4/8/8/b3p2p/1pp5/5R2/4N1pp/7k
Input: Schwalbe, 2021-04-21
Last update: Dieter Berlin, 2023-04-28 more...
43 - P1388876
Ulrich Voigt
18346v Die Schwalbe 305 10/2020
4. Preis
Abt. h#3,5-n
PR Fadil Abdurahmanovic
P1388876
(2+8) C+
h#7
0.1.1...
1. ... La1 2. Db8 Kb2 3. La7 Kc3 4. Tb6 Kd4 5. Sd6 Ke5 6. Kh8 Kf6 7. Lg8 Kg6#
play all play one stop play next play all
Wurde ursprünglich als h#6 mit wLa1 veröffentlicht (1.Db8 usw.).
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comment
Keywords: Aristocrat, Minimal (L), Batteriematt diagonal, Battery creation, discovered checkmate, Corner mate, blocking of a piece, Liniensperrung, Check Protection, corner to corner (L), Schlüssel = Eckzug
Genre: h#
Computer test: H. Juel: popeye 4.61
FEN: r5kB/5n2/7r/3b4/1n6/8/5b1q/1K6
Input: Schwalbe, 2021-04-21
Last update: Olaf Jenkner, 2023-10-15 more...
44 - P1391849
Sergii I. Tkachenko
Leonid Lyubashevsky

H2615 StrateGems 95 07-09/2021
P1391849
(2+7) C+
h#6
1. f2-f1=L Ld1xc2 2. Td2-d1+ Lc2xd1 3. c3-c2 Kc1-d2 4. c2-c1=L+ Kd2-e1 5. Lc1-f4 Ke1xf1 6. Lf4-h2 Ld1xf3#
play all play one stop play next play all
VL: Schnoebelen Theme (l) (2022-01-23)
comment
Keywords: Minimal (L), under-promotion key (l), under-promotion (l), Promotions to bishops, konsekutive Umwandlungen 2 (ll), Antiphönix, Selfblock, Corner mate
Genre: h#
Computer test: Gustav 4.1c
FEN: 8/8/8/8/8/2pp1p2/2pr1p2/2KB3k
Input: Marcin Banaszek, 2021-07-16
Last update: Alfred Pfeiffer, 2022-02-02 more...
45 - P1393861
Ernst Carl Schaaf
15116 Deutsches Wochenschach 23/03/1919
Anderssen-Gedenkturnier, 1918
P1393861
(4+4)
#3
1. Th6! gxh6 2. De5+
1. ... Sxh6 2. De8+
1. ... Sxe7 2. Txh7+
1. ... Sf6 2. Dg6
play all play one stop play next play all
Henrik Juel: duals 1... Sf6 2.Df7,Dg6,Df5
the other variations are correct (2021-09-20)
comment
Keywords: Corner mate
Genre: 3#
FEN: 6nk/4N1pp/6R1/7Q/8/7K/8/8
Reprints: 3 Die Schwalbe 61, p. 10, 02/1980
Input: Dieter Berlin, 2021-09-20
Last update: Gunter Jordan, 2023-04-10 more...
46 - P1394181
Mirko Degenkolbe
S0854 StrateGems 96, p. 177, 10-12/2021
P1394181
(5+4) C+
s#12
1. Le6! b3? 2. De3+ Kd1 3. Td2+ Kc1 4. Td3+ Kc2 5. De2+ Kc1 6. Db2+ Lxb2# Mustermatt

1. Le6! Zugzwang
1. ... Lb2+ 2. Txb2 b3 3. De3+ Kd1 4. Td2+ Kc1 5. Td5+ Kc2 6. Dd3+ Kc1 7. Df1+ Kc2 8. Lxf5+ Kc3 9. Dc1+ Kb4 10. Dc5+ Ka4 11. Dc4+ Ka3 12. Lb1 b2# Mustermatt
play all play one stop play next play all
Dem Matt auf b2 (Lb2# oder b2#) steht der „falsche Block“ auf a2 (wTa2) im Wege. Dieser muss also von dort verschwinden, was nur unter ständiger Beschäftigung des schwarzen Königs möglich ist. Nachdem der weiße Störenfried weit genug weg vom Geschehen ist, überlegt es sich der weiße Läufer anders und blockt final auf dem Feld b1, weil der schwarze König nach a3 gelenkt wurde.
Wenn Schwarz „falsch“ fortsetzt (1. … b3?), kommt es schon zu einem S# in sechs Zügen. Leider gibt es dann nur eine saubere Kurzvariante, wobei dieses Mal der schwarze Läufer ebenfalls auf b2 mattsetzt.
[C+]
(MD1719)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-10-03)
comment
Keywords: Model mate, Pawn mate, Corner mate
Genre: s#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-10-03)
FEN: 8/8/8/5p2/1p3P2/bB1Q4/R7/K1k5
Input: Felber, Volker, 2021-10-02
Last update: Marcin Banaszek, 2022-04-05 more...
47 - P1394730
Kurt Keller
2969 ChessStar 20/10/2021
Rasim-100MT
Judge: Ferhat Karmil

P1394730
(8+9) C+
#10
b) wSa6>a4
a) 1. La6? illegal!
1. Lc8! Ka8 2. Sb4 Ka7 3. Sc2 Ka8 4. Sxd4 La7 5. Se6 Lb8 6. Sf8 Ka7 7. Sxg6 Ka8 8. Lb7+ Ka7 9. Se7 g6 10. Sc8#
6. ... La7? 7. Lb7+ Kb8 8. Sd7#
5. ... Kb8 6. Ld7 Ka8 7. Sxc7+ Kb8 8. Sa6+ Ka8 9. c7 Lb8 10. cxb8=D#
9. ... Kb7 10. c8=D#
4. ... Ka7 5. Se6 ... (transposes into lines above)
2. ... La7? 3. Lb7+ Kb8 4. Sa6#

b) 1. Lc8?
1. La6! Ka8 2. Sb2 La7 3. Sc4 Lb8 4. Sd2 La7 5. Sf3 Lb8 6. Sh4 La7 7. Sxg6 Lb8 8. Lb7+ Ka7 9. Se7 g6 10. Sc8#
7. ... Kb8 8. Sf8 Ka8 9. Lb7+ Kb8 10. Sd7#
8. ... g6 9. Sd7+ Ka8 10. Lb7#
6. ... Ka7 7. Sxg6 ...
5. ... Kb8 6. Sh4 ...
4. ... Ka7 5. Sf3 ...
3. ... Kb8? 4. Se5 dxe5 5. fxe5 Ka8 6. Lb7+ Kb8 7. e6 f4 8. e7 f3 9. e8=D#
5. ... f4 6. e6 Ka8 7. Lb7+ ...
6. ... f3 7. e7 Ka8 8. Lb7+ ...
7. ... f2? 8. e8=D#
4. ... Ka8? 5. Lb7+ Kb8 6. Sd7#
2. ... Ka7 3. Sc4 ...
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Comments:
more ...
comment
Keywords: Twin, Model mate, Switchback, Pendulum, Selfblock, Annihilation, Springerwanderung, Stalemate dissolution, Flight-giving key, Stalemate avoidance, Corner mate
Genre: n#
Computer test: Gustav 4.1 d
FEN: 1b6/kBp3p1/NpPp2p1/1P1P1pP1/3p1P2/3K4/8/8
Input: Kurt Keller, 2021-10-20
Last update: Kurt Keller, 2022-04-03 more...
48 - P1395509
Pascale Piet
9143 Seven Chess Notes 181 02/2021
P1395509
(2+3) C+
h#5
1. g1=L b4 2. Lc5 bxc5 3. a2 c6 4. a1=T c7 5. Ta7 c8=D#
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more ...
comment
Keywords: Corner mate, Kindergarten Problem, Model mate, Promotion (ltD x3), Minimal (B), Ceriani-Frolkin Theme (l)
Genre: h#
FEN: k7/8/8/8/8/p5K1/1P4p1/8
Input: Gunter Jordan, 2021-11-07
Last update: James Malcom, 2021-11-07 more...
49 - P1396990
Anatoly Kirichenko
Aleksandr Pankratiev

1147 Pat a Mat 116 06/2021
P1396990
(2+5) C+
h#6*
0.1.1...
* 1. ... ... 2. Kd4 c4 3. Sd5+ cxd5 4. Kc4 d6 5. Kd5 d7 6. Kd6 d8=D#
1. ... c3 2. Ta6 cxb4 3. Kc6 bxc5 4. Kb7 c6+ 5. Ka8 c7 6. Ta7 c8=D#
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Jakob Leck: cf. P1397020 (2022-12-26)
comment
Keywords: Corner mate (in Los.), Excelsior white, Ideal mate (im *), Minimal (B), Model mate (in Lös.), Round Trip (k-3 im *), Selfblock (in Lös.), Promotion (D), Promotion in the mating move
Genre: h#
FEN: 8/8/2r1p3/2pk4/1n3K2/8/2P5/8
Input: Gunter Jordan, 2021-12-13
Last update: Gunter Jordan, 2021-12-13 more...
50 - P1397020
Anatoly Kirichenko
Aleksandr Pankratiev

4674 Best Problems 100 10/2021
P1397020
(2+4) C+
h#6
0.2.1...
1) 1. ... c3 2. Sd4+ cxd4 3. Kc4 d5 4. Kd4 d6 5. Kd5 d7 6. Kd6 d8=D#
2) 1. ... cxb3 2. Ta6 b4 3. Kc6 bxc5 4. Kb7 c6+ 5. Ka8 c7 6. Ta7 c8=D#
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Jakob Leck: cf. P1396990 (2022-12-26)
comment
Keywords: Corner mate (in 2), Excelsior white, Ideal mate (in 1), Klasinc theme (k-B in 1), Model mate (in 2), Round Trip (k-3 in 1), Capture key (in 2), Selfblock, Promotion (D), Promotion in the mating move
Genre: h#
FEN: 8/8/2r5/2pk1K2/8/1n6/2P5/8
Input: Gunter Jordan, 2021-12-14
Last update: Gunter Jordan, 2021-12-14 more...
51 - P1398028
Rolf Wiehagen
SuperProblem (Website) 20/12/2021
after Ed Hoes and Hans Uitenbroek
5. Platz TT-263
P1398028
(2+6) C+
h#7
0.1.1...
1. ... Kg3-g4 2. Sd4-f3 g2xf3 3. e5-e4 f3xe4 4. Lb3-d5 e4xd5 5. Dh6-c6 d5xc6 6. Ka7-a8 c6-c7 7. Ta2-a7 c7-c8=D#
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Vergleiche mit P1373236
Yuri Bilokin: you can see 1.Sf3 gxf3 2.e4 fxe4 3.Bd5 exd5 4.Qc6 dxc6 5.Ka8 c7 6.Ra7 c8=Q#
1.Sf3 gxf3 2.Be6 f4 3.Bc8 fxe5 4.Qd6 exd6 5.Ka8 d7 6.Ra7 dxc8=Q#
1.Sf3 gxf3 2.Qd6 f4 3.Be6 fxe5 4.Bc8 exd6 5.Ka8 d7 6.Ra7 dxc8=Q#
1.Sf3 gxf3 2.Qd6 f4 3.Be6 fxe5 4.Ka8 exd6 5.Bc8 d7 6.Ra7 dxc8=Q# (2023-08-15)
comment
Keywords: Minimal (B), Promotion in the mating move, Excelsior white, Promotion (D), Selfblock, Corner mate, Model mate
Genre: h#
Computer test: Gustav 4.1c
FEN: 8/k7/7q/4p3/3n4/1b4K1/r5P1/8
Input: Marcin Banaszek, 2022-01-07
Last update: Gunter Jordan, 2022-05-07 more...
52 - P1398383
Aleksandr Pankratiev
4718 Best Problems 101 01/2022
P1398383
(4+5) C+
h#7
1. f5 Lb1 2. f4 gxf4 3. d4 f5 4. d3 f6 5. d2 f7 6. d1=T f8=D 7. Txb1 Da3#
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Henrik Juel: stipulation should be h#7, not just h#, I expect (2022-01-14)
James Malcom: Fixed. (2022-01-14)
comment
Keywords: Corner mate, Entblockung, konsekutive Umwandlungen 2 (tD), Line opening, Model mate, Promotion (D), under-promotion (t)
Genre: h#
FEN: 8/5p2/8/1p1p4/6p1/1P4P1/B6K/k7
Input: Gunter Jordan, 2022-01-14
Last update: James Malcom, 2022-01-14 more...
53 - P1399437
Kivanc Cefle
2206 Gaudium 245 31/07/2021
P1399437
(2+3) C+
h#7
2.1...
Beamtenschach
1) 1. Le5 Ta1 2. Lb5 Te1 3. Lg3 Te5 4. Lf1 Te2+ 5. Kh1 Tf2 6. Lg2+ Tf3 7. Lh2 Tf1#
2) 1. Lc3 Td2+ 2. Kh1 Td4 3. Lc2 Td2 4. Le4 Td3 5. Ld4 Kb8! 6. Lg1 Te3 7. Lg2 Th3#
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Henrik Juel: Besides the tempo move, there is a pleasant echo model mate
The wonders of Functionary chess... (2022-02-25)
comment
Keywords: Aristocrat, Functionary Chess, Echo, Corner mate, Minimal (T), Model mate, Selfblock, Tempo Loss (in 2)
Genre: Fairies
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: K7/8/8/8/b7/8/7k/b2R4
Input: Gunter Jordan, 2022-02-25
Last update: Gunter Jordan, 2022-02-25 more...
54 - P1399802
Gunter Jordan
9146 Phénix 324 11/2021
P1399802
(3+2) C+
ser-!#7
1. b8=L 2. b7 3. Kb6 4. Ka7 5. Ka8 6. La7 7. b8=L!#
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Meeraner, Urform, Themafiguren wB/L & wB/L

Erstdarstellung der Meeraner-Urform im Serienzugeigenmatt.
Henrik Juel: Can be tested with Popeye 4.87 also (in 1.9 seconds) (2022-03-15)
comment
Keywords: discovered checkmate, Corner mate, Eigenmatt, konsekutive Umwandlungen 2 (LL), Meerane-Thema, Minimal (l), Model mate, Selfblock, Seriesmover, Symmetrical end position, Umnov, Promotions to bishops, under-promotion (L), under-promotion in mating move, under-promotion key
Genre: Fairies
Computer test: Gustav 4.1.a
FEN: 8/1P6/1Pb5/2K5/4k3/8/8/8
Input: Gunter Jordan, 2022-03-15
Last update: Gunter Jordan, 2022-03-15 more...
55 - P1401081
Reinhardt Fiebig
Rolf Wiehagen

H1773 Probleemblad 10-12/2021
P1401081
(3+6) C+
h#4vv
Versuch 1: 1. c1=S 0-0?? 2. Sb3 (Sd3?) Tc1 3. Sa5 (Sc5?) Txc7 4. Sb7 Tc8#
Versuch 2: 1. c1=S Kd2? 2. Sd3 (Sb3+?) Tc1 3. Sc5 Txc7?? 4. Sb7 Tc8#
Lösung: 1. c1=S (a1=S?) Kf2 (Kd2?) 2. Sb3 (Sd3+?) Tc1 3. Sa5 (Sc5?) Txc7 4. Sb7 Tc8#
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Der Versuch 1 ist wegen der Unzulässigkeit der Rochade nicht machbar.

Hierzu gibt es eine Version, siehe P1403979.
Henrik Juel: It may seem obvious, but still:
White may not castle, because he just moved king or rook (2022-05-02)
comment
Keywords: Corner mate, Castling position, under-promotion (s), under-promotion key, Selfblock, Model mate, Line opening, Homebase (w)
Genre: h#
FEN: k7/p1b1p3/8/8/8/8/p1p4P/4K2R
Input: Gunter Jordan, 2022-05-02
Last update: Gunter Jordan, 2022-08-31 more...
56 - P1401456
Claus Grupen
2132 Problem Observer 03/2011
2. ehrende Erwähnung
P1401456
(2+7)
#3
1. Dh1! (Z) f3 2. Dxh8 f2 3. Dxe5#
1. ... Lf6 2. Dc6 ... 3. Dc3#
2. ... e4 3. Dxf6#
1. ... Lg7 2. Db7 ... 3. Db2#
2. ... e4 3. Dxg7#
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Henrik Juel: C+ Popeye 4.61 also (2023-10-21)
comment
Keywords: corner to corner (D), Corner mate, Line opening, Changed mates, Model mate (Gnaden-), Schlüssel = Eckzug, Minimal (D)
Genre: 3#
Computer test: Gustav 4.1 a
FEN: 7b/8/8/4p3/5p2/8/p1p5/kbK3Q1
Input: Gunter Jordan, 2022-05-24
Last update: Gunter Jordan, 2023-10-21 more...
57 - P1401783
Claus Grupen
15 Schach in Schleswig-Holstein 03/2013
P1401783
(3+8)
#8
1. 0-0-0+! Kh2 2. Dg1+ Kh3 3. Td3+ Kh4 4. Td4+ Kh3 5. De3+ Kh2 6. Th4+ Kg2 7. Tg4+ Kf1 8. Tg1#
7. ... Kh1 8. Dg1#
7. ... Kh2 8. Dxh6#
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Matts auf dem gleichen Feld (g1).

Die sDa8, der sTh8, der sTa7 und der sBh7 sind entbehrlich. Es entsteht eine Miniatur ohne Umwandlungsfiguren.
Henrik Juel: C+ Popeye 4.61 (2022-06-12)
Henrik Juel: sBh7 cannot be removed, but sBh7 can, I think (2022-06-12)
comment
Keywords: Perpetual check, Corner mate, Non-standard material, Castling key, Switchback (k), Checking key, x pieces move to one square, Model mate (Gnaden-)
Genre: n#
FEN: q6r/rr4Qp/7p/8/8/8/q7/R3K2k
Input: Gunter Jordan, 2022-06-12
Last update: Gunter Jordan, 2022-06-12 more...
58 - P1402406
Dirk Borst
Nunspeet 2022
1. Platz
PR Koen Versmissen
P1402406
(2+14) C+
h#6
2.1...
1) 1. Ta3 bxa3 2. 2. Lb5 a4 3. Dc6 axb5+ 4. Kb7 bxc6+ 5. Ka8 cxd7 6. Sc8 dxc8=D#
2) 1. Sd5 Kg2 2. Ta3 Kf1 3. Kb5 Ke2 4. Sc3+ Ke3 5. Kb4 Kd4 6. Db5 bxc3#
play all play one stop play next play all
Yuri Bilokin: more economical bBf6-g3(-bPg3) 8/pqpp4/kn6/p3n3/b6p/1p4bK/1P6/r7 (2+13) (2022-07-03)
comment
Keywords: Corner mate, Entblockung, Excelsior white (in 1), Minimal (B), Promotion (D in 1), Promotion in the mating move
Genre: h#
FEN: 8/pqpp4/kn3b2/p3n3/b6p/1p4pK/1P6/r7
Reprints: Probleemblad 2/22, p. 36, 04-06/2022
Input: Gunter Jordan, 2022-07-01
Last update: Gunter Jordan, 2022-07-01 more...
59 - P1402541
Kabe Moen
H2689 StrateGems SG99 07-09/2022
P1402541
(5+4) C+
h#2
2.1...
1) 1. Le4xc2 Td6-g6 2. Lc2-f5 Ta2-h2#
2) 1. Tb5xa5 Td6-d7 2. Ta5-d5 Ta2-a8#
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Yuri Bilokin: more economical wRa2-a3, wPc2-f3, -bPg4 7k/8/3R4/P1r5/4b3/R4P2/8/6K1 (5+3) h#2 2.1…
1.Bxf3 Rg6 2.Bd5 Rh3# (MM)
1.Rxa5 Rd7 2.Rd5 Ra8# (MM)
Analogy (good)
Grimshaw (black)
Play on the same square (B2, 2) (2022-07-08)
Kabe Moen: Thank you for the comment and version of my problem. Your version is very nice and more economical. However, the point of my problem was not to show a regular Grimshaw, but to show a distant Grimshaw. The distant Grimshaw happens when a Rook and Bishop mutually interfere with each other on two different squares (d5 and f5 in this case). The section editor also mentions this in his comments on the originals. (2022-07-13)
comment
Keywords: Capture key, Line opening, Model mate, Corner mate, Line closing
Genre: h#
Computer test: Popeye 4.83
FEN: 7k/8/3R4/Pr6/4b1p1/8/R1P5/5K2
Input: Marcin Banaszek, 2022-07-08
Last update: Gunter Jordan, 2022-07-08 more...
60 - P1402598
Aleksandr Pankratiev
9737 Seven Chess Notes 92 01/2022
P1402598
(2+2) C+
h#5
0.1.1...
1. ... Ka3 2. Sc3 Kb4 3. Kb2 Sa3 4. Ka1 Kb3 5. Sb1 Sc2#
play all play one stop play next play all
Yuri Bilokin: more meaningful bNd1-a1 P0542863 (2022-07-10)
comment
Keywords: Aristocrat, Corner mate, Ideal mate, Minimal (S/s), Selfblock
Genre: h#
FEN: 8/8/8/8/8/8/K1k5/1N1n4
Input: Gunter Jordan, 2022-07-10
Last update: Gunter Jordan, 2022-07-10 more...
61 - P1402698
Oleksandr S. Smogorzhevsky
Ceskoslovensky Sach 1960
P1402698
(7+10) cooked
#17
1. Lh2! La6! 2. Lg4 Lb7 3. Kg5 La6 4. Lg3 Lb7 5. Lf5 La6 6. Kf6 Lb7 7. Lf4 La6 8. Le6 Lb7 9. Ke7 La6 10. Le5! Lb7 11. Ld7 La6 12. Kd8 Lb5 13. axb5 cxb5 14. Ld6 b4 15. axb4 cxb4 16. Lxb4 Th1,T~ 17. Sxc2#
10. Ld6? Lc8 11. Lxc8 Te1!
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Cook: Dualistisch: 11.Lh3,Lg4,Lf5,Ke8 La6 12.Ld7 Lb7 13.Kd8 La6 14.Kc7 Lb5 15.a:b5 c:b5 16.L:b5 Th1 17.S:c2# sowie auch 12.Ke8 Lb7 13.Kd8 La6 14.Kc7 ezc.
msterkowiec: Unfortunately, this nice composition seems yet more dualistisch: 1. Bg3 Bc8 2. Be1 Bb7 3. Kg5 Ba6 4. Bg3 Bb7 5. Bf5 Ba6 6. Kf6 Bc8 7. Bf4 Bb7 8. Be6 Ba6 9. Ke7 Bc8 10. Be5 Bb7 11. Bd7 Ba6 12. Kd8 Bb5 13. ab5 cb5 14. Bd6 b4 15. a:b4 cb4 16. B:b4 Rce1 17. N:c2x This is the dual that my computer test reports, however there seem to be many ways to get rid of this dual (at least in the first move), for example:
a) #18 8/Bb6/2p5/2p5/P1p4K/P1P1N2B/ppp5/krr5 1. Bb8 Bc8 2. Bh2 Bb7 3. Bg4 Ba6 4. Kg5 Bc8 5. Bg3 Bb7 6. Bf5 Ba6 7. Kf6 Bc8 8. Bf4 Bb7 9. Be6 Ba6 10. Ke7 Bc8 11. Be5 etc.
b) #18 1B6/1b6/2p5/2pN4/P1p4K/P1P4B/ppp5/krr5 1. Ne3 Bc8 2. Bh2 Bb7 3. Bg4 Ba6 4. Kg5 Bc8 5. Bg3 Bb7 6. Bf5 Ba6 7. Kf6 Bc8 8. Bf4 Bb7 9. Be6 Ba6 10. Ke7 Bc8 11. Be5 etc. (2022-07-18)
comment
Keywords: Corner mate, Smothered mate, Check Protection, Systematic movement
Genre: n#
FEN: 1B6/1b6/2p5/2p5/P1p4K/P1P1N2B/ppp5/krr5
Reprints: FIDE Album 1959-1961
3 Problemist Ukrainy 69, p. 4, 07-09/2021
Input: Gunter Jordan, 2022-07-14
Last update: Frank Richter, 2022-07-15 more...
62 - P1402740
Friedrich Martin Palitzsch
Deutsche Schachzeitung 1922
P1402740
(5+11) cooked
#3
1. Dh1! Lf3 2. Dh6 ... 3. Dxg5#
1. ... Sf3 2. Da1 ... 3. Da8#
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Cook: 1. Kf8
Henrik Juel: cook 1.Kf8 thr. 2.S~,Dg3 (2022-07-17)
comment
Keywords: Intersection Theme, corner to corner, Corner mate, Line opening
Genre: 3#
Computer test: H. Juel
FEN: 3k4/2N3Kp/1p1BB1p1/5ppb/3p4/7Q/2pp4/4n3
Reprints: 191 Das schwarze Schnittpunktgefüge [Klinke] , p. 99, 1924
Input: Dieter Berlin, 2022-07-17
Last update: Dieter Berlin, 2022-07-17 more...
63 - P1403108
Mykola R. Vasyuchko
Mykola V. Cherniavskyi

18799 Die Schwalbe 312-1, p. 327, 12/2021
P1403108
(2+8)
h#6
b) sKa8->b8
a) 1. Lb3 cxb3 2. Lg1 b4 3. h1=T b5 4. Th2 bxc6 5. Ta2 c7 6. Ta7 c8=D#
b) 1. Dd3 cxd3 2. Ld1 d4 3. c2 d5 4. c1=T d6 5. Tb1 d7 6. Tb7 d8=D#
play all play one stop play next play all
18799 (Mykola Wasjutschko & Mykola Tschernjawskij). a) 1.Lb3 c:b3 2.Lg1 b4 3.h1=T b5 4.Th2 b:c6 5.Ta2 c7 6.Ta7 c8=D#(MM), b) 1.Dd3 c:d3 2.Ld1 d4 3.c2 d5 4.c1=T d6 5.Tb1 d7 6.Tb7 d8=D#(MM). „Zwei Exzelsiore, schwarzer Schachschutz, Turmunterverwandlungen und Selbstblocks. Auch die Echomatts sind verbindende Elemente dieses vorzüglichen Zwillings.“ (GJ) So richtig als Echo würde ich die Matts wegen der verschiedenen Blockzahlen nicht ansehen, aber sei es drum. KHS sieht „Mustermatts, Exzelsiormärsche, schwarze Opfer, schwarze Turmverwandlungen. Die umgewandelten schwarzen Türme blocken je ein Fluchtfeld. Alles ist so ähnlich schon dagewesen (in meiner dunklen Erinnerung). MRit wird sicher wieder genügend Vorgänger herausfischen.“ Auch HJä vertraut ihm: „Exzelsiormärsche und -matts des weißen Bauern und schwarze Umwandlungen für je einen notwendigen Turmblock in sparsamer Konstruktion; dass sich bei diesem populären Thema wohl einige Vergleichsstücke zitieren lassen werden, wird MRit vermutlich noch belegen“. Der äußert sich allerdings nicht dazu, sondern schreibt lediglich: „Wandert der Bauer links herum, wird der weiße König auf der rechten Seite gegen die Umwandlung des Blockturms abgeschirmt und umgekehrt. Dabei beeindrucktmich besonders die unscheinbare Zwillingsbildung“.
Henrik Juel: C+ Popeye 4.61 also (2022-07-27)
comment
Keywords: Minimal (B), Excelsior white, Promotion in the mating move, under-promotion (t), Promotion (D), konsekutive Umwandlungen 2 (tD), Corner mate (in a), Model mate, Selfblock, Echo, Check Protection, Line closing
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: k7/b7/2p5/3q4/b6p/2p5/2P4p/4K3
Input: Felber, Volker, 2022-07-27
Last update: Gunter Jordan, 2022-07-27 more...
64 - P1404477
Baldur Kozdon
18837 Die Schwalbe 313, p. 447, 02/2022
P1404477
(4+11) C+
#10
1. Te7+! Kb8 2. La8 h1=D 3. Lxh1 h2 4. La8 h1=D 5. Lxh1 Lb1 6. La8 Le4 7. Lxe4 ... 8. La8 ... 9. Sc6+ Kc8 10. Lb7#
9. ... Kxa8 10. Ta7#
play all play one stop play next play all
18837 (Baldur Kozdon). 1.Te7+! Kb8 2.La8 [3.Sc6+ K:a8/Kc8 4.Ta7/L:b7#] h1D. Da ist sie, die schwarze Dame! :-) 3.L:h1 h2 4.La8 h1D 5.L:h1 Lb1 6.La8 Le4 7.L:e4  8.La8  9.Sc6+ Kc8/K:a8 10.Lb7/Ta7#. „Der vergebliche Widerstand von Schwarz steigert nur den Appetit des weißen Läufers.“ (JA) „Der weiße Läufer ‚rennt‘ mehrmals von h1 nach a8 hin und zurück. Das ist schon ‚witzig‘.“ (KHS) Andere sprachen hingegen von langweiligem Hinauszögern des Drohmatts. Vielleicht können wir uns auf folgenden Kompromiss einigen?: „Das Schema ist nicht schlecht, aber dreifache Schlägerei auf der langen Diagonale ist nicht gerade inhaltlicher und ästhetischer Glanz.“ (FRd)
more ...
comment
Keywords: corner to corner (L 5-fach), Promotion (d), Promotions to queens, konsekutive Umwandlungen 2 (dd), Phoenix, Antiphönix, Model mate, Corner mate, Checking key
Genre: n#
Computer test: A. Baumann: Gustav 4.2a
FEN: k6n/1R3p2/4p1p1/Np6/2p5/1p5p/b4K1p/7B
Input: Felber, Volker, 2022-09-19
Last update: Dieter Berlin, 2024-03-18 more...
65 - P1404944
Stephan Dietrich
18937 Die Schwalbe 314 04/2022
Norbert Geissler zum
64. Geburtstag gewidmet
P1404944
(5+3)
ser-s#13
Alphabetschach
Breton adverse
1. a8=L 2. b8=L 3. Lf3 4. La7 5. Lg1 6. d8=S 7. Se6 8. Sg5 9. e8=S 10. Sf6 11. Lg4 12. Sh5 13. Ld4 Sxg4 [-wLd4]#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2023-03-12)
comment
Keywords: Seriesmover, Schlüssel = Eckzug, under-promotion key, under-promotion (LS), under-promotion B/S, konsekutive Umwandlungen 4 (LLSS), Corner mate, Selfblock, Ideal mate
Genre: Fairies
FEN: 7k/PP1PP3/7K/4n3/7n/8/8/8
Input: Stefan Höning, 2022-10-07
Last update: Gunter Jordan, 2023-03-11 more...
66 - P1405307
Mirko Degenkolbe
Udo Degener

15116 Springaren 163 09/2022
P1405307
(12+3)
ser-s#12
1. c4! 2. Lb3 3. Sd1 4. Lxa7 5. Sfe3 6. 0-0 7. Te1 8. Sf1 9. Te7 10. Tb7 11. Kh1 12. Lg1 Lxb7#
play all play one stop play next play all
1. c4! [1. c3??]
2. Lb3! [2.Ld~?]
3.Sd1! [3.S~?]
4.Lxa7! [4.Lg~?, 4.Sf3?]
5.Sfe3
6.0-0! [6.K~? oder 6.T~? ist jeweils zu langsam]
7.Td1
8.Sf1 [Rückkehr]
9.Td7
10.Tb7
11.Kh1
12.Lg1 [Rückkehr] ...Lxb7#

Vier verschiedene weiße Figuren müssen in den ersten vier Zügen jeweils einen Auswahlzug vollführen.
Zweimal Klasinc in Verbindung mit der weißen Rochade.
Dazu diverse Umnows und verzögerte Umnows.
Mustermatt.
(MD1820)
SCHRECKE: C+, Gustav 4.2b, Brute Force (2022-10-22)
comment
Keywords: Klasinc theme (L-k, L-t, S-t), Seriesmover, Castling (wk), Umnov, Switchback (LS), Corner mate
Genre: Fairies
FEN: b7/p7/8/5P2/6P1/k3N1P1/2PP3P/3BKNBR
Input: Felber, Volker, 2022-10-21
Last update: Gunter Jordan, 2023-04-10 more...
67 - P1405701
Rolf Wiehagen
1113 mpk-Blätter 147 10/2022
Hemmo Axt zum 80. Geburtstag gewidmet
P1405701
(4+15) C+
h#3
0.2.1...
1) 1. ... Tdd2 2. Txb2 Txb2 3. Lc7 (Lb6?) Txb8#
2) 1. ... Tbd2 2. Txd4+ Txd4 3. Lc8 (Le8?) Txd8#
play all play one stop play next play all
"wTb2/wTd4 können auf b8/d8 nicht selbst mattsetzen; erst ihr Ersetzen durch den jeweils anderen wT auf ihren Diagramm-Feldern ermöglicht diese Matts. Grund für diese Paradoxie: Das Opfer von sTb5/sTd5 ist der einzige Weg, diese Matt-Verhinderer auszuschalten." [Autor]
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comment
Keywords: discovered checkmate, Batteriematt diagonal, double-check mate, Corner mate, Exchange of roles (T-T, t-t), Line opening, Model mate, Zilahi
Genre: h#
FEN: 1n1b3k/3bp2q/2p4p/prpr1p2/2KR4/6p1/1R2p3/B7
Input: Gunter Jordan, 2022-11-07
Last update: Gunter Jordan, 2022-11-13 more...
68 - P1406007
Wilhelm Hagemann
Deutsche Schachblätter 1935
P1406007
(6+2)
#3
1. c7! droht 2. c8=D+,c8=T+ Ld8 3. Dxd8#,Txd8#
1. ... Lxc7 2. g6 droht 3. g7#
2. ... Lxe5 3. Lxe5#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61, except for the duals in the threat variation (2022-11-19)
comment
Keywords: Schlagrömer, Minimal (l), Corner mate
Genre: 3#
FEN: 1B5k/7P/2P4K/b3P1P1/8/8/8/8
Input: Rainer Staudte, 2022-11-19
Last update: Gunter Jordan, 2022-11-19 more...
69 - P1406082
Claus Grupen
160 Mitteilungsblatt der SG Kiel-Ost 118 1979
P1406082
(3+13)
#9
1. f3! Ta3 2. f4 Ta4 3. f5 Ta3 4. f6 Ta4 5. f7 Ta3 6. f8=S Ta4 7. Se6 Ta3 8. Sd4 Ta4 9. Sxb3#
play all play one stop play next play all
-sDb1, sTc1->b1, sLd1->c1, sBe2->d2, -sBc2, wKe1->d1= 2 Steine weniger.
Stefan Felber: Diagrammfehler?! Auf a5 muß ein sL stehen, da sonst die Stellung illegal und außerdem das Problem unlösbar ist. (2022-11-23)
Gunter Jordan: Oh je, das war mein Lapsus. Natürlich ein sL. Ich hab es geändert! (2022-11-23)
comment
Keywords: Corner mate, Excelsior white, Model mate, under-promotion (S)
Genre: n#
Computer test: Gustav4.1 a
FEN: 8/8/1p6/bP6/rp6/1p6/ppp1pP2/kqrbK3
Input: Gunter Jordan, 2022-11-23
Last update: Gunter Jordan, 2022-11-23 more...
70 - P1407400
Oswaldo Faria
Caetano Belliboni

2836 Thema Danicum 10/1984
P1407400
(3+3) C+
s#5
Längstzüger
Circe
1. Th1! Th7 2. Txh7[+sTa8]+ Kg8 3. Ta7 Tf8 4. Ta8 Txa8[+wTh1] 5. Tb1 Txa2#
play all play one stop play next play all
Gunter Jordan: Ein herrliches, vergnügliches Problem! (2023-01-22)
comment
Keywords: Circe, Maximummer, Switchback, Schlüssel = Eckzug, Opferbahnung, corner to corner (T), Round Trip (T-5), Selfblock, Rücknahme Schlüsselzug, Pinning, Corner mate, Model mate
Genre: Fairies
Computer test: Popeye Windows-32Bit v4.79
FEN: 7k/8/8/1p6/8/8/P6r/KR6
Input: HBae, 2023-01-22
Last update: Gunter Jordan, 2023-01-22 more...
71 - P1408182
Wolfgang Pauly
Fata Morgana 1922
P1408182
(2+6)
s#9*
Längstzüger
b) sSg7
* 1. ... Dd1#
a) 1. f4 Dd1+ 2. Kf2 Dh5 3. Ke3 Dd1 4. Ke4 Dh5 5. Kd5 Dd1+ 6. Kc6 Dh5 7. f5+ Dxf5 8. Kb7 Db1+ 9. Ka8 Db8#
b) 1. f4 Dd1+ 2. Kf2 Dh5 3. fxe5 Dd1 4. e6 Dh5 5. exd7 Da5 6. d8=D Dh5 7. Da8 Da5 8. Dg2+ Dg5 9. Kg1 Dxg2#
play all play one stop play next play all
SCHRECKE: a)+b): C+, popeye 4.87 (2023-03-10)
comment
Keywords: Antiphönix (in b), Corner mate (in a), Fata Morgana, Forsberg Twins, Maximummer, Minimal (B), Switchback (d), Promotion (D in b)
Genre: Fairies
FEN: 8/3n2b1/6k1/4p2q/8/7p/5P2/5K2
Reprints: Quartz 56, p. 941, 01/2023
Input: Gunter Jordan, 2023-03-10
Last update: Gunter Jordan, 2023-03-10 more...
72 - P1408294
Claus Grupen
Vereinsmitteilungen des Siegener Schachvereins von 1878 04/92 01/1992
P1408294
(7+2) C+

1. Kg4! f3 2. Sg2 fxg2 3. Sh1 gxh1=D,~ 4. Dxh1#
play all play one stop play next play all
Stefan Felber: Forderung fehlt! (2023-03-16)
comment
Keywords: Keirans theme, Corner mate, Line opening, Line opening, Model mate, Sacrifice of white pieces, Minimal (b)
Genre: n#
Computer test: Gustav 4.1 a
FEN: k7/P6Q/8/5P2/5p2/5K2/5N2/4N1B1
Input: Gunter Jordan, 2023-03-16
Last update: Rainer Staudte, 2023-03-16 more...
73 - P1408618
Udo Degener
Mirko Degenkolbe

9376 Phénix 335 10/2022
P1408618
(9+7) C+
h#5
0.1.1...
Nullstellung
a) +wSe3
b) +wLc1
c) +wTa1
a) 1. ... Sf5 2. h5 e3 3. h4 Sxh4 4. Kg8 Sxg6 5. Th7 Lc4#
b) 1. ... e3 2. Th5 Lc4 3. Tf5 exf5 4. e4 fxg6 5. Lxb2 Lxb2#
c) 1. ... 0-0-0 2. Txf1 d4 3. Tf7 dxe5 4. Lf6 exf6 5. Th7 Td8#
play all play one stop play next play all
(MD1862)
more ...
comment
Keywords: Model mate, Castling (wl in c), Line opening (in a), Selfblock (in a+c), Model mate, Unpinning, Corner mate (in b+c), Line opening
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 7k/6b1/6pp/4p3/4P3/6p1/PPPPP1P1/4KB1r
Input: Felber, Volker, 2023-03-31
Last update: Gunter Jordan, 2023-04-02 more...
74 - P1409872
Alain Bienabe
Shakhmatnaya Kompozitsiya 2014
P1409872
(4+3) C+
#3
wDR=Kaiserin
1. d8=KA! droht 2. KAdf7#
1. ... Kg7 2. KAd6 La2,L~ 3. KAdf5#
2. ... Lf7+ 3. KAdxf7#
2. ... Kh8 3. KAdf7#
2. ... Le6 3. KAdxe6#
2. ... h6,h5 3. KAdg6#
play all play one stop play next play all
Anton Baumann: C+ Alybadix (2023-05-23)
comment
Keywords: Corner mate, Promotion (KA), Promotion key, pin-mate, Switchback (k)
Pieces: dr = Empress (KA)
Genre: Fairies
FEN: 4K*1Qbk/3PP2p/8/8/8/8/8/8
Input: Gunter Jordan, 2023-05-21
Last update: Gunter Jordan, 2023-05-21 more...
75 - P1409876
Baldur Kozdon
Wochenpost 25 14/06/1995
P1409876
(5+3) C+
#5
1. Kf2? hxg2 2. Sxg2 a2!

1. Sf5! droht 2. Kf2
1. ... Kxg2 2. S5h4+ Kh1 3. Kf2 a2 4. Sf5 a1=D 5. Sg3#
play all play one stop play next play all
more ...
comment
Keywords: Flight giving sacrifice key, Switchback (S), Corner mate
Genre: n#
Computer test: SCHRECKE: Gustav 4.2c
FEN: 8/8/8/8/7N/p4N1p/6PP/4K2k
Reprints: 374 Problemschach-Jahrbuch 1995 D , p. 154, 1996
Input: Dieter Berlin, 2023-05-22
Last update: Dieter Berlin, 2023-07-26 more...
76 - P1410828
Gerhard Maleika
2432 Gaudium 272 31/12/2022
P1410828
(7+3) C+
=2vvv
1. Th8? Saxc6 (a) 2. Te7= (A)
1. ... Sab7 2. c7=
1. ... Sb3 2. Txb3=, aber 1. ... Sc4!
1. Ta3? Sdxc6 (b) 2. Th7= (B)
1. ... Sdb7 2. c7=
1. ... Sf7 2. Kxf7=, aber 1. ... Se6!
1. Te8? Saxc6 (a) 2. Th7 (B)
1. ... Sab7 2. c7=
1. ... Sc4 2. Txc4=, aber 1. ... Sb3!
1. Ta4! Sdxc6 (b) 2. Te7 (A)
1. ... Sdb7 2. Te7= (A)
1. ... Sf7 2. Kxf7=
1. ... Se6 2. Txe6=
play all play one stop play next play all
Belgrad-Thema: 1. .. a 2.A / 1. .. b 2.B / 1. .. a 2.B / 1. .. b 2.A.
Stefan Felber: Auch in der Lösung folgt auf 1. ... Sdb7 2. c7= (2023-07-09)
comment
Keywords: Attack number, Corner mate (-patt), Pinning, Pattwechsel (2-fach)
Genre: Fairies
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: k2n4/8/1PP3K1/n7/7R/4R3/7B/7B
Input: Gunter Jordan, 2023-07-09
Last update: Gunter Jordan, 2023-07-09 more...
77 - P1411620
Lörinc Bata
Magyar Sakkelet 1953
P1411620
(6+7) C+
#8
1. Ta1! d4 2. La2 d5 3. Lb1 Le3 4. Lc2+ Lg1 5. Ld1 Le3 6. Le2+ Lg1 7. Lf1 Le3 8. Lg2#
play all play one stop play next play all
more ...
comment
Keywords: double-check mate, Zig Zag Path (L), Schlüssel = Eckzug, Discovered check, Unpinning, Corner mate
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/8/3pB3/3p4/p4p2/P2P1P1K/7p/4R1bk
Reprints: 190 Ungarische Schachproblem Anthologie , p. 176, 1983
Input: Dieter Berlin, 2023-08-05
Last update: Gunter Jordan, 2023-08-06 more...
78 - P1413114
Pascale Piet
G932 Problemist Ukrainy 78 10-12/2023
P1413114
(4+5) C+
pser-s#9
1. Sb6 2. Sd5 3. Tf7 4. Txd7 5. Ka7 6. Ka8 7. Ta7 8. Se7+ Kb6 9. ... Sc8+ Txc8#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.61 (2023-10-23)
comment
Keywords: Corner mate, Round Trip (S-4), Seriesmover, Parry Series
Genre: Fairies
FEN: 2N5/3r4/K1kp4/1pr5/8/5R2/8/7B
Input: Marcin Banaszek, 2023-10-22
Last update: Gunter Jordan, 2023-12-25 more...
79 - P1413565
Karl Fabel
Gondel 04/1949
P1413565
(3+6) C+
#3
1. Sh5! Tff3 2. Shg3+ Txg3 3. Sxf2#
play all play one stop play next play all
more ...
comment
Keywords: Holzhausen, Corner mate, Model mate
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/8/5N2/5r2/4N3/r7/5p1p/n4K1k
Reprints: 18 Einführung in das Problemschach [Fabel] , p. 27, 1976
Input: Dieter Berlin, 2023-11-17
Last update: Dieter Berlin, 2023-11-17 more...
80 - 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...
81 - P1414198
Albert S. Schachnasarjan
473 Leninski Sawet 30/12/2004
P1414198
(2+3)
#3
1. Kc2! g2 2. Tg3 g1=D 3. Txg1#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-12-27)
comment
Keywords: Minimal (T), Corner mate
Genre: 3#
FEN: 8/8/8/8/8/6pR/p7/k1K5
Input: Rainer Staudte, 2023-12-27
Last update: Gunter Jordan, 2023-12-29 more...
82 - P1414274
James T. C. Chatto
12 The Amateur Chess Magazine 06/1872
J. White gewidmet
P1414274
(12+6)
-1w, dann s#11
R: 1. Kh1-g1 dann 1. Dg7+ Ke8 2. Dg8+ Kd7 3. Sb6+ Kd6 4. c5+ Ke5 5. Sc4+ Kf4 6. Th4+ Kf3 7. Sd2+ Kf2 8. Tf4+ Txf4 9. Lh4+ Txh4 10. Tf1+ exf1=D+ 11. Dg1+ Dxg1#
10. ... exf1=T+ 11. Dg1+ Txg1#
10. ... exf1=L 11. Dg2+ Lxg2#
10. ... exf1=S 11. Dg3+ Sxg3#
play all play one stop play next play all
Henrik Juel: In the forward play Popeye 4.61 with 'opt non 0 1 thr 0' found no flaws (2023-12-30)
Henrik Juel: solution typo: 10... exf1=S 11.Dg3+, not Sg3+ (2023-12-30)
Henrik Juel: ... and R: 1.Kh1-g1 (2023-12-30)
comment
Keywords: Corner mate
Genre: Retro, s#
FEN: N2B1k2/5n1R/2b1rr2/8/1PP1P3/3B2Q1/2N1p2P/R5K1
Input: Frank Müller, 2023-12-30
Last update: Gunter Jordan, 2023-12-30 more...
83 - P1414321
Rolf Wiehagen
1858 Springaren 167 0972023
nach D. Elekes & G. Schweig
P1414321
(3+5) C+
h#4
0.1.1...
1. ... f8=S (f8=~?) 2. De6 fxe6 3. Kh8 e7 4. Lxf8 exf8=D#
play all play one stop play next play all
Veröffentlicht in der Rubrik "Samasaker och hugskott".
Vergleiche P0552543. (Autor)
Yuri Bilokin: you can see 1.Qb1+ Kxb1 2.Bc1 Ka1 3.Kh8 f8=Q#
1.Qb1+ Kxb1 2.Bc1 Kxc1 3.Kh8 f8=Q#
1.Qb1+ Kxb1 2.Bc1 Ka2 3.Kh8 f8=Q#
1.Qb1+ Kxb1 2.Bc1 Kc2 3.Kh8 f8=Q# (2024-01-13)
comment
Keywords: Corner mate, Model mate, Phoenix (DS), Schnoebelen Theme (S), Promotion (D), Promotion in the mating move, under-promotion (S), under-promotion key
Genre: h#
FEN: 8/5Pkp/5p1b/5P2/8/1q6/8/K7
Input: Gunter Jordan, 2024-01-02
Last update: Gunter Jordan, 2024-01-02 more...
84 - P1414434
Marko Ylijoki
5061 idee & form 160 10/2023
P1414434
(2+7) C+
h#7
0.1.1...
b) wBc2->c7
a) 1. ... c3 2. Lg1 c4 3. f2 c5 4. f1=T c6 5. Tf8 c7 6. Tb8 c8=D 7. Sd4 Da6#
b) 1. ... c8=D+ 2. Db8 Dd8 3. Lg3 Kg1 4. Lc7 Kf2 5. Kb7 Ke3 6. Kc6 Ke4 7. Db6 Dd5#
play all play one stop play next play all
Yuri Bilokin: you can see a) 1.Bg1 c4 2.f2 c5 3.f1=R c6 4.Rf8 c7 5.Rb8 c8=Q 6.Sd4 Qa6#
1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Sf4 c8=Q#
1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Qe1 c8=Q#
1.Bg1 c3 2.f2 c4 3.f1=R c5 4.Rf7 c6 5.Ra7 c7 6.Qf2 c8=Q#
b) 1.Qg5 Kxh2 2.Qc5 Kh3 3.Kb7 Kg4 4.Kc6 c8=Q+ 5.Kd5 Kf5 6.Bd4 Qxe6#
1.Qg5 Kxh2 2.Kb7 Kh3 3.Qc5 Kg4 4.Kc6 c8=Q+ 5.Kd5 Kf5 6.Bd4 Qxe6#
1.Qg7 Kxh2 2.Kb7 Kh3 3.Kc6 c8=Q+ 4.Qc7 Kg4 5.Bc5 Kf5 6.Kd6 Qxe6#
1.Qg7 Kxh2 2.Kb7 Kh3 3.Kc6 c8=Q+ 4.Qc7 Kg4 5.Kd6 Kf5 6.Bc5 Qxe6# (2024-01-30)
comment
Keywords: Corner mate (in a), Epaulettenmatt (in b), Excelsior white (in a), Remote selfblock (in b), konsekutive Umwandlungen 2 (tD in a), Line closing (in a), Model mate, Checking key (in b), Selfblock, Promotion (D), Promotion key (in b), under-promotion (t in a), Minimal
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: k7/8/4n3/8/8/5pq1/2P2b1n/3b3K
Input: Gunter Jordan, 2024-01-11
Last update: Gunter Jordan, 2024-01-11 more...
85 - P1414823
Reinhardt Fiebig
11192 Ideal-Mate Review 79 07-09/2000
P1414823
(5+2)
ser-h#15
1. Kg7 2. Kxg6 3. Kf5 4. Ke4 5. Kd3 6. Kxd2 7. Kc3 8. c1=T 9. Ta1 10. Kb4 11. Kxa5 12. Ka6 13. Ka7 14. Ka8 15. Ta7 Sb6#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2024-02-06)
comment
Keywords: under-promotion (t), corner to corner (k), Corner mate, Ideal mate, Königswanderung, Liniensperrung, Opferminimal, Check Protection, Selfblock, Seriesmover
Genre: Fairies
FEN: 2K4k/3N4/6B1/N7/8/8/2pB4/8
Input: Gunter Jordan, 2024-02-06
Last update: Gunter Jordan, 2024-02-06 more...
86 - P1414995
Marko Ylijoki
4178 Variantim 90 08/2023
P1414995
(2+8) C+
h#7
0.1.1...
b) wBc2->c7
a) 1. ... c4 2. Dh2+ Kxh2 3. g3+ Kxh3 4. g2 c5 5. g1=T c6 6. Ta1 c7 7. Ta7 c8=D#
b) 1. ... c8=S 2. La7 Sd6 3. Sb6 Sxe8 4. Lg2+ Kg1 5. Lb7+ Kf1 6. Sd7 Ke2 7. Sb8 Sc7#
play all play one stop play next play all
Yuri Bilokin: you can see b) 1.Ba7 c8=S 2.Sb6 Sd6 3.Bg2+ Kg1 4.Bb7+ Kf1 5.Sd7 Sxe8 6.Sb8 Sc7#
1.Sb4 c8=S 2.Sa6 Sd6 3.Sb8 Sc4 4.Sd6 Sa3 5.Sb7 Sb5 6.Ba7 Sc7#
1.Sb4 c8=S 2.Sa6 Sd6 3.Sb8 Sc4 4.Sd6 Sa3 5.Ba7 Sb5 6.Sb7 Sc7#
1.Sb4 c8=S 2.Sa6 Sd6 3.Sb8 Sc4 4.Sd6 Se3 5.Sb7 Sd5 6.Ba7 Sc7# (2024-02-18)
comment
Keywords: Corner mate, Smothered mate (in b), Excelsior white (in a), konsekutive Umwandlungen 2 (tD), Minimal (B), Model mate, Phoenix (in a), Rückkehr nach Umwandlung (in b), Round Trip (B/S in b), Selfblock, Promotion (D in a), Promotion in the mating move (in a), Exchange of Promotions, under-promotion (t,S), under-promotion key (in b)
Genre: h#
FEN: k3n3/8/8/3n4/5pp1/6qb/2P2b2/7K
Input: Gunter Jordan, 2024-02-13
Last update: Gunter Jordan, 2024-02-13 more...
87 - P1415679
Sergey Radchenko
11096 Ideal-Mate Review 79 07-09/2000
Lob
PR Eugene Albert
P1415679
(2+2) C+
h=2
b) a1=a8
a) 1. La7 c7 2. Lb8 cxb8=L=
b) 1. Lb1 f7 2. Lg6 Kxg6=
play all play one stop play next play all
Henrik Juel: I think that the twinning is more clearly described by something like
Rotate the position 90 degrees clockwise (2024-03-10)
comment
Keywords: Attack number, Corner mate (-patt), Ideal stalemate, Minimal (B/l), Symmetrical end position (in a), under-promotion (l in a), under-promotion in the stalemating move (in a), Twinning by board rotation
Genre: Fairies
FEN: k1K5/8/2P5/8/8/8/8/6b1
Input: Gunter Jordan, 2024-03-10
Last update: Gunter Jordan, 2024-03-10 more...
88 - P1415784
Misha Shapiro
E1193 SuperProblem (Website) 18/02/2022
P1415784
(2+9) C+
h#7
0.2.1...
1) 1. ... d2-d3 2. e5-e4 d3-d4 3. e4-e3 d4-d5 4. e3-e2 d5-d6 5. e2-e1=L d6-d7 6. Le1-c3 d7-d8=S 7. Lc3-g7 Sd8-f7#
2) 1. ... d2-d4 2. a7-a5 d4xe5 3. a5-a4 e5-e6 4. a4-a3 e6-e7 5. a3-a2 e7-e8=S 6. a2-a1=L Se8-d6 7. La1-g7 Sd6-f7#
play all play one stop play next play all
Yuri Bilokin: you can see 1.e4 d4 2.e3 d5 3.e2 d6 4.e1=B d7 5.Bc3 d8=S 6.Bg7 Sf7# (2024-03-13)
comment
Keywords: Minimal (B), Pawn step variations, Excelsior white, Excelsior black (in 2), under-promotion B/S, konsekutive Umwandlungen 2 (lS,Sl), Model mate, Smothered mate, Selfblock, Corner mate
Genre: h#
Computer test: Popeye 4.83
FEN: 6nk/p6n/8/4p3/8/6pp/3P2p1/6Kb
Input: Marcin Banaszek, 2024-03-13
Last update: Gunter Jordan, 2024-03-13 more...
89 - P1415805
Zlatko Mihajloski
E38 Shakhmatnaya Kompozitsiya 161 2022
P1415805
(2+10) C+
h#6
3.1...
1) 1. Lh7 Ke6 2. Tg6+ Kf5 3. e4 Kf4 4. Th6 Kxg3 5. g5 Kh3 6. Lg6 g4#
2) 1. Le4 Kxd7 2. Ld8 Kxd6 3. Lh4 Kxe5 4. Lf3+ Kf5 5. Te6 gxf3 6. Th6 fxg4#
3) 1. Th4 Kf7 2. Th3 gxh3 3. Kh6 h4 4. Kh7 h5 5. Kh8 h6 6. Lh7 hxg7#
play all play one stop play next play all
Yuri Bilokin: Chumakov theme (rb, 2)
Chumakov theme (rp, 2)
Delayed Umnov (bB-wK) × 2
Delayed Umnov (bR-wP) (2024-03-14)
comment
Keywords: Pawn mate, Corner mate (in 3), Minimal (B), Model mate, Selfblock, Tschumakow Theme
Genre: h#
FEN: 8/2bnK1p1/3p4/4pb1k/6r1/6p1/6P1/4r3
Input: Gunter Jordan, 2024-03-14
Last update: Gunter Jordan, 2024-03-14 more...
90 - P1415889
Adolf Ringier-Tschudi
3 Schachprobleme und -problemchen 09/1908
P1415889
(6+3)
#3
1. Dh7! b2 2. Db1+ axb1=D,~ 3. Sc2#
1. ... Kb2 2. Dg7+ (auch Dh8+ Dual) Kc1 3. Da1#
play all play one stop play next play all
Cook: 1. Tb8! Kb2 2. Dxb3+ nebst matt
Thomas Woschnik: Schnellkorrektur: Ta8 nach a7, +wSh8 ;-) (2024-03-16)
comment
Keywords: Queen sacrifice, Corner mate, Selfblock
Genre: 3#
FEN: R7/1Q6/8/3P4/2P5/Np2K3/p7/k7
Input: Gunter Jordan, 2024-03-15
Last update: Gunter Jordan, 2024-03-15 more...
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