Die Schwalbe

70 problem(s) found in 3578 milliseconds (displaying 70 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT A='Brozus, Hartmut' AND K='Pattaufhebung'] [download as LaTeX]

1 - P1089513
Evgeny Sorokin
Pavlos N. Moutecidis

126v Novi Temi 05-06/1972
Lj. Anastasow gewidmet
P1089513
(5+2)
s#12
Korrektur in 07-09/1973, Seite 11.
1. Tg2+ Kh1 2. Tf2+ Kg1 3. Tf1+ Kh2 4. Lh1 Kg3 5. Le5+ Kg4 6. Lh2 Kg5 7. Dh7 Kg4 8. Kf2 Kg5 9. Kg1 Kg4 10. Df5+ Kh4 11. Lg3+ Kxg3 12. De4 h2#
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G.Denkovski: 126v Novi Temi 6 05-06/1972 (2009-07-31)
SBD: It would appear to me that the position as corrected here is correct, with the solution above quite incorrect since 4. Dh7 Kg3 5. Le5?? is mate, this must be the old solution combined with the new position. So I think it goes 4.Lf3-h1 Kh2-g3 5.La1-e5 Kg3-g4 6.Le5-h2 Kg4-g5 7.Dh8-h7 Kg5-g4 8.Ke2-f2 Kg4-g5 9.Kf2-g1 Kg5-g4 10.Dh7-f5 Kg4-h4 11.Lh2-g3 Kh4-g3 12.Df5-e4 Bh3-h2#, although I do not have Brute Force confirmation of that.

So I think the correction works, but await confirmation from someone with a better computer..... (2009-08-01)
Olaf Jenkner: It is well tested, probably correct, but I could not do Brute Force.
By the way, it's cheaper to use a better program than a better computer. (2009-08-01)
Anton Baumann: Gut 12 Jahre später ist das bessere Programm da:
C+ Gustav 4.2a brute force (42,5h)! (2022-03-29)
comment
Keywords: Stalemate dissolution
Genre: s#
FEN: 6RQ/8/8/8/8/5B1p/4K2k/B7
Input: Frank Müller, 2009-07-31
Last update: Frank Müller, 2009-08-01 more...
2 - P1095354
Irwin Lester Stein
730 Canadian Chess Chat 1982
P1095354
(11+9) cooked
s#7
1. De5 Kg4 2. Td4+ Kh5 3. Ld6 c5 4. Tc4 Sc6 5. De2+ g4 6. Txc5+ Se5 7. f4 gxf3ep#
NL 1. La3,Lb4,Le3,Ld4,La7,Lb6 c5 2. Lxc5 Sc6 3. Df3+ g4 4. Td5+ Se5 5. Le7 d6 6. Lh3 gxf3#
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SBD: WDf5-g3, C+ (Gustav 3.1m) und "Pattaufhebung" bleibt auch. (2010-01-21)
Frank Müller: Nein, mit wDg3 keine Pattaufhebung. Der sBg5 ist dann beweglich und Schwarz somit in der Diagrammstellung nicht mehr Patt. (2010-01-21)
SBD: Ja da war Ich ermuedet und habe das u'bersehen. Wenn "Pattaufhebung" als thema bleiben muss - und war bestimmt vom Autor beabsichtigt - sehe Ich keine gute Rettung. (2010-01-22)
Gerald Ettl: Verbesserungsvorschlag: +wBf6
die NL geht nicht mehr und am Anfang ist die Stellung wie gewuenscht Patt. (2023-10-02)
SCHRECKE: NL geht immer noch mit 5. Le3! (2023-10-02)
Gerald Ettl: Verbesserungsvorschlag: wBd6, +wTb6, +sBb7, +sLc8
1.De5 Kg4 2.Tb4+ Kh5 3.Lb6 c5 4.Tc4 Sc6 5.De2+ g4 6.Txc5+ Se5 7.f4 gxf3ep#
Gustav Brute force C+
(der sLc8 ist notwendig) (2023-10-02)
comment
Keywords: Stalemate dissolution
Genre: s#
FEN: 1n2B3/3p4/p1pR2rp/P1B2Qpk/7b/7R/5PKP/5N1N
Input: Frank Müller, 2009-12-04
Last update: Frank Müller, 2009-12-04 more...
3 - P1095638
Andrej W. Borodulin
Sportklub Bogatyr Kriwoj Rog 1988
Spezielle ehrende Erwähnung (im Russ. Turnier)
P1095638
(12+6) C+
s#5
Zuletzt geschah zwingend e7-e5.
1. dxe6ep dxe6+ 2. Kf4 Ld7 3. c8=S+ Lxc8 4. Th8 Ld7 5. Td8 e5#
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more ...
comment
Keywords: Multiple publication, En passant as key, Stalemate dissolution
Genre: s#, Retro
Computer test: A. Baumann: Gustav 4.2a
FEN: 2b5/1pPp4/1P1k1P2/1B1PpKPR/1P2P1p1/4B1P1/8/8
Reprints: S1246 The Problemist 01/1989
6657 Die Schwalbe 08/1989
Input: Frank Müller, 2009-12-07
Last update: A.Buchanan, 2024-01-04 more...
4 - P1107477
Gunter Jordan
88 Opfer-Opfer-Matt 01/2002
P1107477
(8+5)
#6
1. Le3! fxe3 2. Ke1 e2 3. f4 exf4 4. Kxe2 f3+ 5. Ke3 f2 6. Td4#
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Henrik Juel: C+ Popeye 4.61 (2022-11-08)
comment
Keywords: Stalemate dissolution, Sacrifice key, Provoked check
Genre: n#
FEN: 8/8/8/1pB1p3/1Pk1Pp2/P1pR1P2/2P2K2/8
Reprints: 172 Problemschach-Jahrbuch 2002, p. 76, 03/2003
Input: Gunter Jordan, 2010-06-07
Last update: Gunter Jordan, 2022-11-09 more...
5 - P1107846
Viktor Sizonenko
6043 Phénix 11-12/2009
2. Preis
P1107846
(7+2)
s#16
1. Tf4 Kh6 2. Tf6+ Kh5 3. Sf4+ Kh4,Kh6 4. Sg2+ Kh5 5. Ke3 Kh6 6. Kd3+ Kh5 7. Kd2 Kh6 8. Ke1+ Kh5 9. Tg5+ Kh6 10. Ld2 Txf6 11. Tg6+ Kh5 12. Th6+ Kg4 13. Dh5+ Kg3 14. Dh4+ Kxg2 15. Dh3+ Kg1 16. Df1+ Txf1#
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paul: Self-anticipated by P1271622 (2022-09-26)
comment
Keywords: Stalemate dissolution
Genre: s#
FEN: 8/5Q2/6r1/7k/6R1/5KRN/4P3/2B5
Input: Frank Müller, 2010-06-17
Last update: Frank Müller, 2014-08-17 more...
6 - P1114515
Eugeniusz Iwanow
884 harmonie 06/2003
P1114515
(7+4) C+
s#6
1. Dc1 c2 2. Lg1 e3 3. La2+ Td5 4. Te5 Txe5 5. Lxe3+ Txe3 6. Da3+ Txa3#
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more ...
comment
Keywords: Stalemate dissolution
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/2N3R1/K1kB1R2/3rp3/2p1B3/2Q5/8
Input: Frank Müller, 2010-09-03
Last update: Marcin Banaszek, 2021-02-12 more...
7 - P1121121
Franz Lustenberger
375 Basellandschaftliche Zeitung 17/12/1977
P1121121
(5+1) C+
#4
1. Tc1! Kd4 2. Sd6 Kd5 3. Sb5 Ke5 4. Tc5# 2. ... Ke5 3. Sb5 Kd5 4. Tf5#
1. ... Kd5 2. Tf4 Ke5 3. Tcc4 Kd5 4. Tc5#
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T12S
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comment
Keywords: Miniature Collection (0340661), Stalemate dissolution, Aristocrat, Rex solus (s), Flight-giving key, Miniature
Genre: n#
Computer test: Gustav 3.2q.
FEN: K7/1N6/8/4k1N1/8/5R2/8/3R4
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2022-11-21 more...
8 - P1153136
Manfred Zucker
Der Tagesspiegel 08/07/1990
P1153136
(5+1) C+
#4
1. Tg4 Ke5 2. Lc1 Kd5 3. Le3 Ke5 4. Tg5#
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(MZ747)
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comment
Keywords: Miniature Collection (0336369), Miniature, Mirror mate, Model mate, Rex solus (s), Flight-giving key, Stalemate dissolution
Genre: n#
Computer test: Gustav 4.1d
FEN: 8/4K3/8/1P1k4/4R3/B2P4/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Alfred Pfeiffer, 2021-11-19 more...
9 - P1166867
Peter Gvozdjak
1486 Pravda (Bratislava) 21/10/1983
P1166867
(5+1)
#2
1. d8=L
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Duplicate Diagram: P1412749

BUL26
Henrik Juel: C+ Popeye 4.61 (2023-10-05)
comment
Keywords: Miniature Collection (0312736), anticipated (P1349543), Stalemate dissolution, under-promotion key (L)
Genre: 2#
FEN: R7/1P1P2k1/6P1/6K1/8/8/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2023-10-05 more...
10 - P1190418
Marko Ylijoki
Suomen Tehtäväniekat 11-12/1996
P1190418
(6+7) C+
s#6
1. Lb2! Kxb4 2. Lb1 Kb3 3. Lc1 Ka4 4. Lc2+ Kb4 5. Lb2 Ka5 6. La3 b4#
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Original bei der 41. Finnischen Problemlösemeisterschaft 1997
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-31)
comment
Keywords: Stalemate dissolution
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/1p6/bp6/kp2p3/1R1pN3/B2K4/B2P4/8
Input: Frank Müller, 2011-03-19
Last update: Marcin Banaszek, 2020-12-31 more...
11 - P1190536
Stephan Dietrich
S2288 The Problemist 11/2009
P1190536
(9+2) C+
s#8
1. Dg7 Kd6 2. Sb7+ Kc6 3. Lf7 Kd7 4. Lg8+ Kc6 5. Ta6+ Kb5 6. Tb6+ Ka4 7. Dd4+ Ka3 8. Ta6+ Sxa6#
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SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-21)
comment
Keywords: Stalemate dissolution
Genre: s#
FEN: NKR5/P1n5/2k5/R1N5/2BQ4/8/P7/8
Input: Frank Müller, 2011-03-20
Last update: Marcin Banaszek, 2020-10-23 more...
12 - P1195248
Wolfgang Weber
3222 Schach 13, p. 204, 07/1959
2. Lob
P1195248
(8+3) C+
s#7
Probe 1. Dg3+? Sxg3 2. Kf4
1. Ke4! Kh1,Kg2 2. Kd3+ Kg1 3. Tf3 Kh1,Kg2 4. Tf4+ Kg1 5. Ke4 Kh1,Kg2 6. Kf5+ Kg1 7. Dg3+ Sxg3#
Pikant und geistreich (V. Litwinow).
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HBae: Das Probespiel ist dualistisch: 1. Dg3+? Sxg3 2. Kf4,Kg6
In der Originallösung (Schach 1959 Seite 313) wird das Probespiel nicht erwähnt. (2021-05-10)
HBae: Schwarz darf nicht 1. -, Kg2? spielen wegen Kurzmatt spätestens in 6 Zügen:
1.Ke4 Kg2? 2.Tf2+! Kh1! 3.Kf5+ Kg1 4.Tf3 Kh1,Kg2 5.Tf4+ Kg1 6.Dg3+ Sxg3#
1.Ke4 Kg2? 2.Kg3? 3.Tf4+ Kg2 4. Kf5+ Kg1 5. Dg3+ Sxg3#
Damit das Probespiel eindeutig ist, könnte der wTf6 auch auf f7 stehen (C+ Popeye v4.37). (2021-05-11)
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comment
Keywords: Flight-giving key, Stalemate dissolution, Logik - Multiple Rückkehr, Führung w Figur
Genre: s#
FEN: 8/B7/1r3R2/3BPKN1/6N1/8/8/4Qnk1
Input: Frank Müller, 2011-05-10
Last update: Felber, Volker, 2021-05-10 more...
13 - P1198722
Alexander Lehmkuhl
521 Gaudium 11/2010
P1198722
(8+2) C+
s#10
1. Se5! Kb6 2. Sd7+ Ka6 3. Tc6+ Ka5 4. Dg5+ Lf5 5. Tc5+ Ka6 6. Df6+ Le6 7. Tc6+ Ka5 8. De5+ Ld5 9. Sb6 Ka6 10. Sc4+ Lxc6#
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comment
Keywords: Pure Round Trip (S), Systematic movement, Stalemate dissolution, Minimal (l)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: KB6/8/k5bQ/2R5/P1N5/1PP5/8/8
Input: Frank Müller, 2011-07-02
Last update: Gunter Jordan, 2022-05-11 more...
14 - P1202654
Wolfgang Weber
4223v Schach 03/1963
P1202654
(10+2) cooked
s#11
Korrekturversuch 07/1963, Seite 222 zu P1405797
1. Kf4 Kh2 2. Sg4+ Kh1 3. Sh6 Kh2 4. Kg5+ Kh1 5. Tf4 Kh2 6. Tf6+ Kh1 7. T2f4 Kh2 8. T4f5+ Kh1 9. g3 Kh2 10. g4+ Kh1 11. Dh3+ Sxh3#
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Diagramm erinnert an Fragezeichen.
Cook: 2. Kg5+ Kh1 3. Tg3 Kh2 4. Sg4+ Kh1 5. Sh6 Kh2 6. Ta3+ Kh1 7. Lf6 Kh2 8. g4+ Kh1 9. Tf5 Kh2 10. Df2+ Kh1 11. Th3+ Sxh3# und anderes
SCHRECKE: einfache Korrektur: wLb8 statt e5! (C+) (2022-11-16)
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comment
Keywords: Flight-giving key, Self-incarceration, Stalemate dissolution, Minimal
Genre: s#
FEN: 8/8/5NP1/4B2P/7P/5RK1/5RP1/5Qnk
Input: Frank Müller, 2011-09-17
Last update: Felber, Volker, 2022-11-16 more...
15 - P1214306
Edward Boswell
2534 Springaren 05/1954
P1214306
(9+9) C+
s#2
1. S3xg2 Lxg2 2. dxc6 d5#
1. S3xg2 hxg2 2. Sf3 Kf2#
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more ...
comment
Keywords: Stalemate dissolution
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/2p5/1prp4/1PpP4/2K2Q2/1BB1N2p/4k1pR/4Nb2
Input: Frank Müller, 2011-10-11
Last update: Dieter Berlin, 2024-03-21 more...
16 - P1236318
Andrey Selivanov
9283 Thema Danicum 01/2004
Informalturnier 2004/05
1. Lob
P1236318
(6+2) C+
s#7
1. e7! Kd6 2. Ta6+ Kc5 3. Tb5+ Kxb5 4. Da4+ Kc5 5. e8=D+ Td6 6. Ta5+ Kb6 7. Dd8+ Txd8#
1. ... Kc5 2. Db4+ Kc6 3. e8=D+ Td7 4. Ta4 Kd5 5. Da5+ Kc6 6. Dc8+ Tc7 7. Ta7 Txc8#
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comment
Keywords: Stalemate dissolution, Promotion (D)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: K4B2/RR6/2k1P3/3r4/4Q3/8/8/8
Input: Frank Müller, 2012-04-08
Last update: James Malcom, 2020-10-02 more...
17 - P1237231
Anatoly Stepochkin
1181 The Ural's Problemist 69 01-03/2012
Speziallob
P1237231
(5+2) C+
s#11
1. Lf8 Kf6 2. h8=D+ Kg6 3. Dg3 Kf5 4. Dhe5+ Kg6 5. Lb3 Kh5 6. Kh8 Kg6 7. Lg8 Kh5 8. Dh3+ Kg6 9. Lh7+ Kf7 10. Dh5+ Kxf8 11. Df6+ Lxf6#
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comment
Keywords: Stalemate dissolution, Minimal, Miniature
Genre: s#
Computer test: Anton Baumann: C+ Gustav 4.1d (2021-02-09)
FEN: 6K1/6BP/6k1/6b1/6Q1/8/8/3B4
Input: Frank Müller, 2012-04-18
Last update: Erich Bartel, 2021-02-10 more...
18 - P1238480
Cyril P. Swindley
5948 Springaren 03/1986
Informalturnier 1986/87
2. Preis
P1238480
(7+4) C+
s#6
1. Lg6 Kd1 2. Dh5+ Kd2 3. Te2+ Kd1 4. Se3+ Sxe3 5. Tg2+ Sg4 6. Lf5 Lxg2#
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SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-01-23)
comment
Keywords: Stalemate dissolution
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/8/4pN1B/2R1K3/3NR3/3k2nQ/7b
Input: Frank Müller, 2012-05-10
Last update: Marcin Banaszek, 2021-01-24 more...
19 - P1243966
Frank Richter
1107 The Ural's Problemist 10-12/2011
3. ehrende Erwähnung
P1243966
(11+3) C+
s#11
1. Sf4 exf4 2. gxf4 e5 3. f5 Kf4 4. Tg6 Ke3 5. Ta6 Kf4 6. Ta1 Ke3 7. Td1 Kf4 8. Tg4+ Ke3 9. f4 exf4 10. Lg2 f3 11. Lf1 f2#
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Anton Baumann: C+ Gustav 4.2a (2022-01-19)
comment
Keywords: Asymmetrical solution, Stalemate dissolution, Symmetrical position
Genre: s#
FEN: 8/8/3RpR2/4p3/1P2B2P/2PPkPP1/4N3/4K3
Input: Frank Müller, 2012-07-05
Last update: Marcin Banaszek, 2022-01-27 more...
20 - P1249381
Manfred Zucker
Mirko Degenkolbe
Michael Schreckenbach

16696v Schach 04/2009
3. ehrende Erwähnung
P1249381
(7+8) cooked
s#12
1. Df8 Kd2 2. Te2+ Kd1 3. Sf4 d5 4. Th2 Ke1 5. Db4+ Kd1 6. Ke3 d4+ 7. Kf2 d3 8. Kg1 d2 9. Df8 Ke1 10. Sg2+ Kd1 11. Le2+ Kxe2+ 12. Df1+ Txf1#
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Korrektur in 08/2009, Seite 81
Korrektur stammt von Michael Schreckenbach, der als Co-Autor hinzugefügt wurde.
Cook: NL
1. Le2+ Kd2 2. Df4+ Ke1 3. Ld1+ Kxd1 4. Se3+ Ke1 5. Sg2+ Kd1 6. Ke3 d5 7. Kf2,Th8 d4 8. Th8,Kf2 d3 9. Th2 d2 10. Kg1 Ke2+ 11. Df1+ Txf1# (Anton Baumann)
(MZ1203)
.
SCHRECKE: Eine erneute Korrektur erschien in Schach 07/2018:
Durch Versetzen des wTe8 nach e4 können wBg3 und sBb3 gestrichen werden.
Mirko und ich haben uns für die Prüfung mit Gustav viel Zeit genommen und keine Inkorrektheiten mehr gefunden.
Die Prüf-Cracks sind natürlich trotzdem aufgefordert, sich daran zu versuchen !
Vielleicht ist ja die ökonomischere (6+7)-Stellung ein nochmaliges Diagramm in der PDB wert ?! (2018-06-29)
Olaf Jenkner: Korrektur siehe P1373313 (2020-03-10)
Felber, Volker: Original unter P1385009 (2021-01-05)
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comment
Keywords: Stalemate dissolution
Genre: s#
FEN: 4R3/1P6/B2p4/3N4/3K4/1p4P1/1pp2Q2/brrk4
Input: Frank Müller, 2012-09-20
Last update: Felber, Volker, 2021-04-27 more...
21 - P1253553
Jorma Pitkänen
K3194 Problemkiste (181) 02-03/2009
P1253553
(3+5) C+
s#6
1. Tf5! f6 2. Tb5 f5 3. Kd1 f4 4. Tc2 f3 5. Txb2+ Dxb2 6. Tc1+ Dxc1#
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Vergleiche P1232331
Gunter Jordan: 1 Stein weniger, o. k., aber der Verweis zur früheren P1232331 hätte hier erfolgen sollen. (2024-03-23)
comment
Keywords: Stalemate dissolution
Genre: s#
Computer test: %C+ lt.A.Beine+W.Seehofer
FEN: 8/5p2/2R2R2/8/8/8/pp6/qk2K3
Input: Erich Bartel, 2012-11-13
Last update: Gunter Jordan, 2024-03-23 more...
22 - P1269152
Geza Erdös
227 Arbeiter-Zeitung (Wien) 26/02/1955
P1269152
(9+4) C+
s#4
1. Tb6! (hebt das schwarze Patt auf) axb6+ 2. Kb4 b5 3. Da8+ Tb7 4. Kc3 (Da torkelt der König ins Weinfaß. Schwarz muß den Spund zuschlagen und aus und gschehn ist's) 4. ... b4#
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AZW: Die Aufgabe ist eine Illustration des Katzenjammers, der dem Aschermittwoch folgt. Der wK torkelt Schritt um Schritt ins Weinfaß hinein, bis ihm der Spund vor der Nase zugeschlagen wird und er in seinem Räuschlein armselig ertrinkt.
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-03-03)
comment
Keywords: Stalemate dissolution
Genre: s#
FEN: 1R4Q1/p4r2/P7/K2k4/3N4/1N1P4/6rB/7B
Input: Mario Richter, 2013-05-03
Last update: Marcin Banaszek, 2022-03-10 more...
23 - P1272031
Andrey Selivanov
The Ural's Problemist 01-03/2004
Den Lesern gewidmet
3. Preis
P1272031
(5+2) C+
s#7
1. c7 Kb6 2. Tc6+ Ka5 3. c8=D+ Tb6 4. De4 Kb5 5. Dcf5+ Ka6 6. Ded5 Txc6 7. Dc8+ Txc8#
1. ... Ka5 2. Ka7 Txc5 3. c8=T+ Tc7+ 4. Ka8 Kb6 5. Tb8+ Ka5 6. Dd4 Ka6 7. Da7+ Txa7#
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SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-08)
comment
Keywords: Stalemate dissolution, Phoenix (T), Exchange of Promotions (D-T), Change of Sacrifices (D-D), Minimal (t)
Genre: s#
FEN: K2B4/8/k1P5/1rR5/2Q5/8/8/8
Input: Frank Müller, 2013-06-08
Last update: Gunter Jordan, 2023-04-28 more...
24 - P1286646
Sergey Smotrov
5085 Seven Chess Notes (103) 08/2014
2. Preis
P1286646
(4+3) C+
s#12
Probe 1. Dxa2+? Txa2+ 2. Kb4
1. Sa5? Kc1 2. Le3+ Kd1

1. Sd4! Kc1 2. Db2+ Kd1 3. De2+ Kc1 4. Sb3+ Kb1 5. Sa5 Kc1 6. Le3+ Kb1 7. Ld2 Kc2 8. Le1+ Kc1! 9. Sb3+ Kb1 10. Ld2 Kc2 11. Lb4+ Kb1 12. Dxa2+ Txa2#
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Anton Baumann: C+ Gustav 4.1d (2021-02-17)
comment
Keywords: Führung w Figur, Stalemate dissolution, Staggered preplans, Miniature
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/B7/8/8/8/KN6/p6Q/rk6
Input: Frank Müller, 2014-08-02
Last update: Marcin Banaszek, 2021-02-24 more...
25 - P1289919
Valerian Onitiu
Allgemeine Zeitung Chemnitz 1925
P1289919
(10+5) C+
s#6
1. Lb7 Kxf1 2. Tb1+ Ld1 3. Dd3+ Te2 4. Tg6 hxg6 5. Kg4 g5 6. Dh3+ Tg2#
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SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-04)
comment
Keywords: Flight-giving key, Stalemate dissolution
Genre: s#
FEN: 6R1/7p/B3p2P/2B1P3/4Q1bK/1R6/2N2r2/5Nk1
Input: Frank Müller, 2014-11-01
Last update: James Malcom, 2021-02-04 more...
26 - P1290188
Cyril S. Kipping
447 Allgemeine Zeitung Chemnitz 01/08/1926
P1290188
(7+4)
s#3
1. Tb1! cxb1=D 2. Dg7 ... 3. Dg2+ fxg2#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.89 (2023-11-03)
comment
Keywords: Stalemate dissolution
Genre: s#
FEN: 1R6/8/8/8/4R2p/5p1k/2p2P2/Q1N3BK
Input: Felber, Volker, 2014-11-05
Last update: Felber, Volker, 2014-11-05 more...
27 - P1297684
Arnold Beine
WCCC Wageningen 08/2006
Lob
Wodka-Turnier
P1297684
(6+2) C+
s#8
1. Ld5! Kd8 2. Df8+ Te8 3. Lc4+ Kc8 4. Df5+ Te6 5. Dc5+ Tc6 6. Tc7+ Txc7 7. Dc6+ Txc6 8. La6+ Txa6#
play all play one stop play next play all
more ...
comment
Keywords: Aristocrat, Stalemate dissolution
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: K1k5/R7/4r3/5Q2/3RB3/8/7B/8
Input: Frank Müller, 2015-02-15
Last update: Alfred Pfeiffer, 2020-10-15 more...
28 - P1305020
Leonid Lyubashevsky
Sergii I. Tkachenko

Z540 Probleemblad 04-06/2015
P1305020
(9+8) C+
s#8
1. Sa6! bxa6 2. Tb3+ Ka5 3. Sxc5 e4 4. Tb8 e5 5. b3 e6 6. Sxa6 c5 7. Tab7 Kxa6 8. Ta7+ Txa7#
play all play one stop play next play all
more ...
comment
Keywords: Stalemate dissolution
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: KN1B4/Rpr1p3/1kp1p3/2p1p3/2P1N3/R3P3/1P6/8
Input: Frank Müller, 2015-07-03
Last update: Alfred Pfeiffer, 2020-10-15 more...
29 - P1313288
Milomir Babic
3261 Sachmatija 10-12/2015
P1313288
(11+4) C+
s#10
1. Tdd1 Kc4 2. Ld5+ Kc5 3. Lg2 Kc4 4. Tf4+ Kc5 5. Tf5 Kc4 6. Lf1+ Kc5 7. La6 Kxc6 8. Sd8+ Kc5 9. Se6+ Kc6 10. Td6+ cxd6#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-12-28)
comment
Keywords: Stalemate dissolution
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/2p2N2/2P2P2/P1k1K3/Pr1R4/B1p2B2/2P5/5R2
Input: Frank Müller, 2015-12-12
Last update: Marcin Banaszek, 2020-12-31 more...
30 - P1329334
Valery Surkov
11432 feenschach 220 07-08/2016
P1329334
(5+2) C+
s#13
1. Dc3+ Tc7 2. Sd6+ Kd8 3. Df6+ Te7 4. Tb8+ Kc7 5. Tc8+ Kb6 6. Dd4+ Ka5 7. Tc5+ Kb6! 8. Db4+ Kba6 9. Dc4+ Kb6 10. Tb5+ Ka6 11. Tb8+ Ka5 12. Dc5+ Ka6 13. Da7+ Txa7#
6. ... Ka6 7. Dc4+ Kb6! 8. Tc6+ Ka5 9. Tc5+ Kb6 10. Tb5+ ...
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (2022-01-24)
comment
Keywords: Aristocrat, Stalemate dissolution, Minimal, Miniature
Genre: s#
FEN: K1k1B3/1R1r1N2/8/8/8/7Q/8/8
Input: Frank Müller, 2017-01-07
Last update: Marcin Banaszek, 2022-01-27 more...
31 - P1349853
Andrey Dikusarov
4143 idee & form 138, p. 4669, 04/2018
P1349853
(8+6) C+
s#9
1. Kd4! Kf2 2. Dd2+ Kg1 3. Dd1+ Kf2 4. e7 Lg1 5. e8=L Lh2 6. Lh5 Lg1 7. Lhf3 Lh2 8. Le4 Lg1 9. De2+ Kxe2#
play all play one stop play next play all
SCHRECKE: 1.Kd4! Kf2 2.Dd2+ Kg1 3.Dd1+ Kf2 4.e7 Lg1 5.e8L Lh2 6.Lh5 Lg1 7.Lhf3 Lh2 8.Le4 Lg1 9.De2+ K:e2# (2022-03-21)
more ...
comment
Keywords: Stalemate dissolution
Genre: s#
Computer test: Gustav 4.0c
FEN: 8/8/4Pp1Q/1p1P1P2/1p5N/1P2K1p1/6Bb/6k1
Input: Frank Müller, 2018-05-11
Last update: Marcin Banaszek, 2022-03-25 more...
32 - P1349854
Ivan Bryukhanov
4144 idee & form 138, p. 4660, 04/2018
P1349854
(5+2) C+
s#12
1. Kd1! Kb1 2. Tc2 Ka1 3. Tc1+ Kb2 4. Lb3 Kxb3 5. Td2 Ka4 6. Tc5 Kb3 7. Kc1 Ka4 8. Kb1 Kb3 9. Ka1 Ka4 10. Td4+ Kb3 11. Tb5+ Kc2 12. Tb2+ axb2#
play all play one stop play next play all
Original war verdruckt mit wTc4 statt d4.
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-09-19)
more ...
comment
Keywords: Stalemate dissolution, Minimal, Miniature
Genre: s#
FEN: 6B1/8/8/8/3R4/p7/N1K4R/k7
Input: Frank Müller, 2018-05-11
Last update: Marcin Banaszek, 2021-09-20 more...
33 - P1358607
Eberhard Schulze
88b Amberger Zeitung 10/01/2015
P1358607
(5+1) C+
#4
b) wKf6->c3
a) 1. Tf1+! Kh2 2. Tgg1 Kh3 3. Tf2 Kh4 4. Th2#
b) 1. Th3+! Kg1 2. Tfh2 Kf1 3. Tg3 Ke1 4. Tg1#
play all play one stop play next play all
Optisch mag das eine Spiegelung sein. Von mir ist das aber nicht beabsichtigt, wie mein Lösungsverlauf deutlich zeigt. Also ist mir hier dieses Schlüsselwort nicht passend.ES
more ...
comment
Keywords: Rex solus (s), Symmetrical solution, Checking key, Stalemate dissolution, Miniature
Genre: n#
Computer test: a)+b): C+, Gustav 4.1d, Brute Force
FEN: 8/8/5K2/8/6P1/6R1/4PR2/7k
Input: Rainer Staudte, 2018-12-10
Last update: Felber, Volker, 2023-06-30 more...
34 - P1361837
Yuri Markovic Gordian
Evgen S. Orlov

F012v SuperProblem (Website) 10/06/2014
1. ehrende Erwähnung
P1361837
(8+9)
s#14
1. Sd6+? Kc5+ 2. Sb5+ Kxb5 3. Da2 b3 4. Da4+ Kxa4#? 5. Ke4!

1. Lf6! Kc5 2. Ld4+ Kb5 3. Lg7 Kc5 4. Lf8+ Kb5 5. Lh6 Kc5 6. Lxe3+ Kb5 7. Lh6 Kc5 8. Td5+ Kxd5 9. e4+ Kc5 10. Lf8+ Kb5 11. Sd6+ Kc5+ 12. Sb5+ Kxb5 13. Da2 b3 14. Da4+ Kxa4#
play all play one stop play next play all
Das ist Version zu P1286744
Gunter Jordan: Die Idee stammt aber von Manfred Zucker, siehe P1081714. Das hätten die Autoren hier mit angeben müssen! Die Auszeichnung ist natürlich ein Fehlurteil. (2021-12-22)
comment
Keywords: Stalemate dissolution
Genre: s#
FEN: 3N4/pp1RB3/bp6/bk3n1R/1pN5/1Q1Kp3/4P3/8
Input: Marcin Banaszek, 2019-03-02
Last update: Gunter Jordan, 2021-12-22 more...
35 - P1373970
A. W. Fulano
66 The Sunday Morning Star 31/01/1904
P1373970
(3+3) C+
#3
1. Sd6! exd6 2. Dc4 (Zugzwang) d5 3. Df4#
play all play one stop play next play all
athulin: Same position published in
Sheffield & Rotherham Independent, v. 68, i. 9320 (1884-08-23), p. suppl. 5, prb. 85
but this time by James Rayner. (2023-01-19)
more ...
comment
Keywords: Stalemate dissolution
Genre: 3#
Computer test: Henrik Juel: C+ by Popeye 4.61 (2020-03-29)
FEN: 2N5/4p3/4p3/4k1K1/8/3Q4/8/8
Input: Rainer Staudte, 2020-03-29
Last update: Alfred Pfeiffer, 2020-03-30 more...
36 - P1374138
Kurt Keller
2020/13 Schach in Schleswig-Holstein 03/2020
P1374138
(5+1) C+
#4
b) Ke1->d1
a) 1. Tc5! Kd3 2. Sf8 Kd4,Ke3 3. Se6+,Se6 Kd3,Ke3 4. Tc3#
1. ... Ke3 2. Tc4 Kd3 3. Se5+ Ke3 4. Te4#

b) 1. Ta3! Kc4 2. Lc6 Kd4,Kb4 3. Kc2 Kc4 4. Ta4#
play all play one stop play next play all
Die Lösungen zur Aufgabe 2020/13 (Kurt Keller) lauten: a) 1. Tc5 Kd3 2. Sf8 Kbel. 3. Se6 (+) Kd3 4. Tc3# sowie b) 1. Ta3 Kc4 2. Lc6 Kb4/Kd4 3. Kc2 Kc4 4. Ta4#. „Als Zwillingsstück akzeptabel“ (Baldur Kozdon). „a) bietet zwei hübsche Varianten mit analogen Springer-Zügen und Rückkehr des weißen Turms im Mattzug. b) fällt demgegenüber ab“ (Stephen Rothwell). „attraktive, übersichtliche Miniatur mit guter Ausnutzung des wenigen Materials“ (Claus Grupen).
(Winus Müller (Rathjensdorf, Germany): Problemschach. Lösungen zur Ausgabe 03/2020, in: Schach in Schleswig-Holstein, 2020-05)
Comments:
  • Note on publication (German): Liebe Löser, die beiden direkten Mattaufgaben sind etwas schwieriger [...]. (Winus Müller (Rathjensdorf, Germany): Problemschach, in: Schach in Schleswig-Holstein, 2020-03)
  • Author – Kurt Keller (Ulm, Germany)
  • Yet Another Chess Problem Database (500597)

more ...
comment
Keywords: Rex solus (s), Miniature, Stalemate dissolution, Flight-giving key, Model mate, Switchback (T), Twin
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 8/1B1N4/8/8/3k4/2R5/1P6/4K3
Input: Kurt Keller, 2020-04-04
Last update: Kurt Keller, 2021-03-30 more...
37 - P1380106
Michael McDowell
253 Tim Krabbé's Website 26/07/2004
P1380106
(6+1) C+
#3
1. La2+! Kc2 2. Sg3 Kxd3 3. 0-0-0#
play all play one stop play next play all
"Just a few minutes later, McDowell sent me this miniature setting, for the price of a checking key."
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comment
Keywords: Belen Theme, Rex solus (s), Checking key, Flight-giving key, Stalemate dissolution, Castling as mating move
Genre: 3#
Computer test: Popeye 4.61
FEN: 8/8/8/8/3B4/3P4/8/RBk1K2N
Input: James Malcom, 2020-09-20
Last update: Felber, Volker, 2020-10-12 more...
38 - P1380108
Michael McDowell
253 Tim Krabbé's Website 26/7/2004
P1380108
(8+2) C+
#4
1. Sd1! Kc2 2. Sdc3 Lxa2 3. Lxa2 Kd3 4. 0-0-0#
2. ... Kc1 3. Sxb1 Kc2 4. Sa3#
play all play one stop play next play all
"And next morning, he sent me "something that looks like a proper chess problem.

(diagram)

1.Nd1! Not only a black piece on b1, but also a key which fills up all the castling squares. 1...Kc2 2.Ndc3 Bxa2 (Kc1 3.Nxb1 Kc2 4.Na3 mate) 3.Bxa2 Kd3 4.O-O-O mate."
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comment
Keywords: Belen Theme, Stalemate dissolution, Castling as mating move
Genre: n#
Computer test: Popeye 4.61
FEN: 8/8/8/3P4/N1B5/4N3/P4P2/Rbk1K3
Input: James Malcom, 2020-09-20
Last update: A.Buchanan, 2021-10-11 more...
39 - P1380151
Edvard af Hällström
30 Allas Krönika 25/07/1925
P1380151
(4+1) C+
#3
1. Dh3! Kd5 2. Dh6 Kd4 3. Dd2#
play all play one stop play next play all
more ...
comment
Keywords: Rex solus (s), Stalemate dissolution
Genre: 3#
Computer test: popeye 4.85
FEN: 8/8/8/5K2/1P1k4/1P3Q2/8/8
Input: Rainer Staudte, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-22 more...
40 - 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#
play all play one stop play next play all
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...
41 - P1380849
Frank Richter
3479 Variantim 81 08/2020
3. spezielle ehrende Erwähnung
Israel Ring Tourney 2019-2020
Section s#5-n
P1380849
(5+2) C+
s#9
b) Tf3->b7
a) 1. Dh7! Kb8 2. e8=D+ Kc7 3. f8=D+ Tf7 4. Dh2+ Tf4 5. Dg6 Kd7 6. Lc6+ Kc7 7. Dgf7+ Kxc6 8. Dc2+ Tc4 9. Da4+ Txa4#

b) 1. Dh4! Kb8 2. e8=D+ Kc7 3. Dc4+ Kd6 4. f8=D+ Te7 5. Ka5 Ke5 6. Db8+ Tc7 7. Dcb3 Kd4 8. Df4+ Kc5 9. Da7+ Txa7#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (DD), Minimal (t), Miniature, Stalemate dissolution
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: k7/4PP2/K7/8/8/5r2/6BQ/8
Input: Rainer Staudte, 2020-10-12
Last update: Marcin Banaszek, 2021-05-04 more...
42 - P1381128
Stefan Felber
Problemist Ukrainy 66 10-12/2020
Lob
Stanislaw Kirilitschenko MT
Miniaturen
P1381128
(5+1) C+
#5
b) Kd4->c4
a) 1. Ke4! Kc5 2. Ld7 Kd6 3. La4 Kc5 4. Sb7+ Kc4 5. b3#

b) 1. b4! Ke5 2. Sf7+ Ke4 3. Sg5+ Ke5 4. b5 Kd6 5. Sf7#
play all play one stop play next play all
Judge Yuri Gordian
more ...
comment
Keywords: Rex solus (s), Flight-giving key, Stalemate dissolution, Miniature
Genre: n#
Computer test: SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force (2020-10-19)
FEN: 3N4/8/3k4/3N4/3K4/7B/1P6/8
Input: Rainer Staudte, 2020-10-19
Last update: Marcin Banaszek, 2021-01-15 more...
43 - P1382303
James Malcom
Jacques Rotenberg

(10) MatPlus.net Forum 22/11/2020
P1382303
(8+5) C+
#2
1. Tb2+? Ka3!

1. Lf3! ... 2. Ld1#
play all play one stop play next play all
Inspired by P1182074

White releases stalemate as a #2, giving Black 20(!) moves. First record in a new task. See:
http://matplus.net/start.php?px=1606065655&app=forum&act=posts&fid=gen&tid=2586&pid=20040#n20040
Henrik Juel: No record, P1182074 is far better in terms of giving Black moves, 32
But this problem also a #2 (2020-11-22)
A.Buchanan: First record in a new task (2020-11-22)
James Malcom: Henrik, you misunderstood! The task is different from the 32! This is about Black release in the #2 form, not releae in the fairy form. (2020-11-22)
comment
Keywords: Stalemate dissolution
Genre: 2#
Computer test: Popeye 4.85
FEN: 8/8/NN1p4/1p1B4/1Pr5/1kb4R/3R4/1KB5
Input: James Malcom, 2020-11-22
Last update: James Malcom, 2021-06-22 more...
44 - P1383238
Nikolay S. Zinovyev
14195 Ideal-Mate Review 93-94 01/2004
P1383238
(5+1) C+
#9
1. Kc6! Kd4 2. Sc5 Ke5 3. Se4 Kd4 4. Sf2 Ke5 5. Sh3 Kd4 6. Shf4 Ke5 7. Sg2 Kd4 8. Se1 Ke5 9. Sf3#
play all play one stop play next play all
more ...
comment
Keywords: Non-standard material, Rex solus (s), Stalemate dissolution
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/1N4N1/8/2KNk3/8/3P4/8/8
Input: Rainer Staudte, 2020-12-23
Last update: Alfred Pfeiffer, 2020-12-23 more...
45 - P1384836
Kurt Keller
StrateGems 93, p. 51, 01-03/2021
Happy Holidays
P1384836
(9+3) C+
#3 v
1. Kd6? Kxb5 2. Tb1+ Kc4 3. La6#
2. ... Ka4!
2. Ta1 Ka4 3. Ld7#
2. ... Kc4 3. La6#
2. ... c4!

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

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

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

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

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

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

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

Henrik Juel: C+ Popeye 4.61 (2021-01-02)
comment
Keywords: Symbol problem (Christmas tree), Rex solus, Symmetrical position, Asymmetrical solution, Reversal 1 (AaBb-BbAa), Stalemate dissolution, Flight-giving key, Switchback (k)
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 2K5/2B5/8/1PkP4/P1P1P3/P3P3/8/2R5
Input: Kurt Keller, 2021-01-02
Last update: Kurt Keller, 2021-03-04 more...
47 - P1385832
Kurt Keller
4585 idee & form 149, p. 5047, 01/2021
Weihnachts- und Neujahrsgruss
P1385832
(10+2)
#5
b) -wBd4
c) ferner -wBb5
a) 1. d6? cxd6 2. b6 d5 3. Lb7 Kb5 4. Kc7 Kc4 5. La6#
4. ... Ka4! 5. Lc6+ Ka3

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

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

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

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Keywords: Symbol problem (Christmas tree), Stalemate dissolution, Sacrifice key, Sacrifice of white pieces, Active sacrifice, Switchback (k), Option key, Promotion, Pawn mate (c), Symmetrical position, Asymmetrical solution, Twin (triplet), Minimal
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 2K5/2p5/2B5/1P1P4/1PkP4/2P5/P3P3/2R5
Input: Kurt Keller, 2021-01-27
Last update: Kurt Keller, 2021-04-28 more...
48 - P1388486
Manfred Zucker
13520 Schach , p. 69, 01/1996
Neujahrsgruß
P1388486
(5+6) cooked
s#9
1. De4+! Kg3 2. Df5 Kh4 3. Le7+ Kg3 4. Dg6+ Kf3,Kf4 5. De4+ Kg3 6. Db4 Kf3 7. Lf6 Kg3 8. Dh4+ Kf3 9. Ld4 b4#
play all play one stop play next play all
Cook: NL 1. Dh3+ Kf4 2. Dh5 Kg3 3. Lg2 Kf4 4. Ke2 Kg3 5. Ke1 Kf4 6. Ld6+ Ke3 7. Dd1,Dd5 b4 8. Te2+ Lxe2 9. Dd2+ cxd2#
Zugumstellung 3. Ke2 Kf4 4. Lg2 Kg3 5. Ke1

Diese und die in MZ´s Unterlagen angegebene NL ist nicht korrekt - entweder Druckfehler in der LB oder Diagrammfehler.

Korrekturversuch unter P1277055
(MZ867)
Anton Baumann: Bei der NL muss es heissen: 5.Ke1 Kf4 6.Ld6+ Ke3 ...
Mögliche Verbesserung: +wBh5, +sBh6 (mit Gustav 4.1d geprüft) (2021-04-14)
comment
Keywords: Stalemate dissolution
Genre: s#
FEN: 8/1p6/bp6/1p6/1B5Q/2pK1k2/2R5/5B2
Input: Felber, Volker, 2021-04-13
Last update: Alfred Pfeiffer, 2021-04-27 more...
49 - P1388934
Aleksandr Kalinin
Leninskije iskry 336 10/02/1930
P1388934
(6+1) C+
#2
1. Kd8! Ke6 2. Lc4#
1. ... Kc6 2. Sb4#
play all play one stop play next play all
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Keywords: Stalemate dissolution, Rex solus (s), Miniature, Flight-giving key
Genre: 2#
Computer test: SCHRECKE: C+, popeye 4.85 (2021-04-24)
FEN: 8/3K4/B7/3kP3/3B4/6N1/2N5/8
Input: Rainer Staudte, 2021-04-24
Last update: Alfred Pfeiffer, 2021-07-21 more...
50 - P1389131
Heinrich Jambon
173 Deutsche Schachblätter 4, p. 64, 04/1950
P1389131
(9+6) C+
#3
1. Sa7! Kxd4 2. Txd2+ Kc5/Ke5 3. Sd7#/Dg7#
1. ... Kd6 2. Dg7
play all play one stop play next play all
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Keywords: Stalemate dissolution
Genre: 3#
Computer test: popeye 4.85
FEN: 8/8/4p3/1N1kNp2/3P1p2/1K2pP2/1P1pP3/3R2Q1
Input: Dieter Berlin, 2021-05-01
Last update: Alfred Pfeiffer, 2021-07-29 more...
51 - P1389167
Noam D. Elkies
Andrew Buchanan

v Retros mailing list 21/12/2012
NDE, version AB
P1389167
(3+6)
#1
b) Capture the King: win in 3 moves
a) 1. Sg3#
b) 1. Lf2 e1=D,L,T,S 2. Sg3 Db4,~ 3. Sxh1
play all play one stop play next play all
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Keywords: Capture the King, Stalemate dissolution
Genre: 3#, Fairies
FEN: 8/8/8/5N2/K7/8/4p1pp/4Bbrk
Reprints: chess.stackexchange.com 2/5/2018
Discord Chess Problems & Studies Server 2/5/2021
Input: A.Buchanan, 2021-05-02
Last update: Alfred Pfeiffer, 2021-08-02 more...
52 - P1389168
Noam D. Elkies
Andrew Buchanan

Retros mailing list 21/12/2012
NDE, version AB
P1389168
(3+7)
#1
b) Capture the King: win in 3 moves (2 solutions)
a) 1. Sf7#
b1) 1. Kg4! g5 2. Sf7 Lf5,L~ 3. Sxh8
1. Kf4,Kh4? g5 2. Sf7 gxf4,gxh4!
b2) 1. Sxg6! Lxg6 2. Kxg6 Kh7 3. Kxh7
1. Sf7=,S~=?
play all play one stop play next play all
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Keywords: Capture the King, Stalemate dissolution
Genre: 3#, Fairies
FEN: 5brk/4p1pb/4P1p1/4N1K1/8/8/8/8
Reprints: Discord Chess Problems & Studies Server 2/5/2021
Input: A.Buchanan, 2021-05-02
Last update: A.Buchanan, 2021-10-24 more...
53 - P1389601
Kurt Keller
2932 ChessStar Static2021 11/05/2021
P1389601
(3+3) C+
#7
1. Kf3? Kf1 2. Sg2 Kg1 3. S6f4 Kf1 4. Se2 Tg1 5. Sg3#
2. ... Tg1!

1. Sh5! Kg2 2. Sh4+? Kg1 3. Kf3 Kf1 4. Sg2 transposes to main line
2. ... Kh3!
2. Sgf4+ Kg1 3. Kf3 Kf1 4. Sg2 Kg1 5. Sg3? stalemate!
5. Shf4 Kf1 6. Se2 Tg1 7. Sg3#
play all play one stop play next play all
Comments:
SCHRECKE: vergleiche: P1124561 (2021-05-15)
comment
Keywords: Miniature (only 6 pieces), Exchange of roles (SS), Stalemate dissolution, Flight-giving key, Stalemate avoidance, Pendulum (k), Switchback (Sk), Selfblock, Square vacation (e2f4g1), Line closing (g1-g3)
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 8/8/6N1/8/5N2/8/4K2p/6kr
Input: Kurt Keller, 2021-05-15
Last update: Kurt Keller, 2021-05-15 more...
54 - P1389751
Mirko Degenkolbe
1681 Augsburger Allgemeine 15/05/2021
P1389751
(4+5) C+
#7
1. Ke2! Zugzwang
1. ... d1=D+,T,L+,S 2. Dxd1+ Kb2 3. Kd3 c2 4. Dxc2+ Ka1 5. Dc1 Kxa2 6. Kd2 Kxb3 7. Dc2#
play all play one stop play next play all
(MD1682)
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Keywords: Promotion (d,t,l,s), Stalemate dissolution, Allumwandlung, unechte schwarze
Genre: n#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 8/8/8/8/1p6/pPp5/P1Qp4/k2K4
Input: Felber, Volker, 2021-05-18
Last update: Alfred Pfeiffer, 2021-08-19 more...
55 - P1389927
Henrik Juel
6838 Thema Danicum 84 10/1996
P1389927
(3+1) C+
#2
Patrol Chess
1. Ta1! Kg1/Kh2 2. Tga2/Tag1#
1. Tg1/Tg3/Tgb2? Kg2/Kh2/Kg1!
play all play one stop play next play all
Henrik Juel: Thanks, Andrew
C+ Popeye 4.61 (2021-05-22)
comment
Keywords: Patrol Chess, Aristocrat, Miniature, Stalemate dissolution, Rex solus (s)
Genre: 2#, Fairies
Computer test: Henrik JuelC+ Popeye 4.61 (2021-05-22)
FEN: 8/8/8/8/6K1/8/R5R1/7k
Input: A.Buchanan, 2021-05-22
Last update: Alfred Pfeiffer, 2021-08-21 more...
56 - P1390970
Adolf Herberg
623 Deutsche Schachzeitung 6, p. 621, 03/1955
P1390970
(5+4)
#5
1. Tf3! Tb2 2. Tf2+ Tb7 3. Lc7 gxf2 4. Dg8+ Kxa7 5. Da2#
play all play one stop play next play all
Henrik Juel: double threat and many duals (2021-06-22)
comment
Keywords: Stalemate dissolution
Genre: n#
FEN: kB6/Pr6/8/8/8/R5p1/6Qp/7K
Input: Dieter Berlin, 2021-06-22
Last update: Alfred Pfeiffer, 2021-11-04 more...
57 - P1391607
Herbert Grasemann
3702 Schach 13, p. 203, 07/1961
Kurt Galke zum 70. Geburtstag gewidmet
1. ehrende Erwähnung
P1391607
(8+2) C+
#6
1. c5! Ke3 2. c6+ Ke4 3. Td4+ Ke3 4. Td5+ Ke4 5. Ke7 Kxd5 6. Lf3#
play all play one stop play next play all
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Keywords: Minimal, Model mate, Stalemate dissolution
Genre: n#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-07-11)
FEN: 3R1K2/B7/8/5p2/2P1kP2/1P4P1/8/3B4
Reprints: 1799 Deutsche Schachblätter 8, p. 193, 08/1975
Input: Dieter Berlin, 2021-07-11
Last update: Alfred Pfeiffer, 2022-01-03 more...
58 - P1391889
Rudolf Wastl

P1391889
(7+3) C+
#3
1. La3! droht 2. Sd6+ Ka4 3. Lc5#
2. ... Kxa6 3. Lc1#,Lb2#,Lc5#,Lb4#
2. ... Ka5 3. Lc5#
1. ... Ka4,Kxa6 2. Sd6 ... 3. Lc5#
play all play one stop play next play all
'Mähr. Tagblatt': Der erste Zug von Weiß muß die schwarze Pattstellung aufheben. Linienverstellung des weißen Turmes mit nachfolgendem Abzugschach.
Überm Diagramm steht "Urdruck", bei den Lösungen dann "Die Aufgabe ist im Jahre 1927 entstanden."
Henrik Juel: The mate duals in the threat never materialize (2021-07-21)
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Keywords: Stalemate dissolution
Genre: 3#
Computer test: Popeye 4.61
FEN: 5B2/pN6/Pp6/1k1P4/8/3P4/2K5/R7
Reprints: 9 Mährisches Tagblatt 05/03/1944
Input: Mario Richter, 2021-07-20
Last update: Alfred Pfeiffer, 2022-02-04 more...
59 - P1392460
Valery Surkov
G39-43 feenschach 232 10/2018
P1392460
(5+2) C+
s#12
1. Ka6? patt

1. Sc7! Kd6 2. Sa8! Kc5 3. Ka6! Kd6 4. De2! Kc5! 5. Dd3! Kc6 6. Dc2+ Kd6! 7. De4! Kc5 8. Sc7! Kd6 9. Sce8+ Kc5 10. Dd3! Kc6 11. Dc2+ Tc4 12. Da4+ Txa4#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-08-04)
comment
Keywords: Stalemate dissolution, Aristocrat, Minimal, Miniature
Genre: s#
FEN: 4N3/8/5N2/K1k5/1r2Q3/B7/8/8
Input: Rainer Staudte, 2021-08-04
Last update: Marcin Banaszek, 2021-08-06 more...
60 - P1392905
Kurt Keller
Mihail Croitor

1592 Troll 18, p. 28, 18/08/2021
P1392905
(10+7) C+
#12
1. Tc4! Kd5 2. Kg4 Kd6 3. Kf3 Kd5 4. Ke2 Kd6 5. Kd1 Kd5 6. Kc2 Kd6 7. Kc3 Kd5 8. Kb4 Kd6 9. Kb5 Kd5 10. Txa4 Kd6 11. Ta8 Kd5 12. Td8#
play all play one stop play next play all
Aufgabe Nr. 1592 (Keller/Krojtor [Kurt Keller (Ulm, Germany) / Mihail Vasil'evich Krojtor (Moldova)]): 1. Tc4! Kd5 2. Kg4 Kd6 3. Kf3 Kd5 4. Ke2 Kd6 5. Kd1 Kd5 6. Kc2 Kd6 7. Kc3 Kd5 8. Kb4 Kd6 9. Kb5 Kd5 10. T:a4 Kd6 11. Ta8 Kd5 12. Td8 matt. (4 Punkte)
(Udo Degener, Grandmaster of Chess Composition (Potsdam, Germany), Unsere Schachseite. Lösung aus TROLL 18, in: TROLL 21/2021, p. 28, 2021-09-29 [2021TRO.pdf])
Henrik Juel: The keywords almost give away the solution, which is also found by Popeye 4.61 in a few minutes and tested C+ in 27 minutes (2021-09-06)
comment
Keywords: Stalemate dissolution, Flight-giving key, Annihilation, Pendulum (black k), Switchback (black k), Königswanderung
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB), Gustav 4.1 d
FEN: 5b2/2p1p1p1/2PkPpP1/2R2P1K/p2P4/P2P4/3P4/8
Input: Kurt Keller, 2021-08-18
Last update: Kurt Keller, 2021-12-14 more...
61 - 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 ...
play all play one stop play next play all
Comments:
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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...
62 - P1395845
Nikolay N. Akimov
Wetscherni Sankt-Peterburg 12/11/2021
P1395845
(6+1) C+
#5
1. Lb1! Kd5 2. Lc5 Ke4! 3. Lc2 Kd5 4. Ld1 Ke4 5. Lf3#
4. ... Ke6 5. Lb3#
play all play one stop play next play all
more ...
comment
Keywords: Rex solus (s), Miniature, Stalemate dissolution
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/1B4K1/4N3/P3k3/3N4/B7/8
Input: Rainer Staudte, 2021-11-14
Last update: Alfred Pfeiffer, 2021-11-15 more...
63 - P1395875
Fritz Emil Giegold
Schach-Echo 10 05/1967
P1395875
(9+4) C+
#3
1. Dc2! bxc2 2. Thc1 {Zugzwang)
2. ... cxb1=D,~ 3. Tc8#
2. ... bxc1=D,~ 3. Tb8#
play all play one stop play next play all
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Keywords: Stalemate dissolution, Queen sacrifice, Figurenopfer, Allumwandlung, unechte schwarze
Genre: 3#
Computer test: popeye 4.87
FEN: K6k/8/5N1P/8/8/1p1PP1P1/1p4Q1/bR5R
Reprints: 93 Rätselvolle Schachaufgaben , p. 56, 1980
Input: Dieter Berlin, 2021-11-16
Last update: Alfred Pfeiffer, 2021-11-16 more...
64 - P1396623
Kurt Keller
13151 Probleemblad 4, p. 110, 10-12/2021
Vrolijke Kerstdagen en Gelukkig Nieuwjaar
Merry Christmas and Happy New Year
P1396623
(9+2) C+
#6 v...
1. c4! Kd4 2. Kd6 droht 3. Lb5 Ke4 4. c5 Kd4 5. Sc6+ A Ke4 6. Ld3# B
2. ... Kxc4 3. La4 Kd4 4. Lb5 Ke4 5. Ld3+ B Kd4 6. Sc6# A
play all play one stop play next play all
Bij de problemen
Aan de zeszet van Kurt Keller kunnen we zien dat de tijd hard gaat. Op het moment van verschijnen van Probleemblad zijn de kersdagen en 2022 nabij. Zijn motto boven het probleem nemen we graag over: “Vrolijke Kerstdagen en gelukkig Nieuwjaar”. Hopelijk vieren we de feesten met minder coronabeperkingen dan vorig jaar. Nuttige tijdsbesteding is natuurlijk om de 15 nieuwe problemen in een gezellige sfeer op te lossen.

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

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

13151 Keller 1.c4! ♚d4 2.♔d6 ♚xc4 3.♗a4 ♚d4 5.♗b5 ♚e4 5.♗d3+ ♚d4 6.♘c6#, 2... ♚e4 3.♗b5 ♚d4 4.c5 ♚e4 5.♗d3+ ♚d4 5.♘c6# of 3.c5 ♚d4 4.♗b5 ♚e4 5.♗d3+ ♚d4 6.♘c6#. En kerstboom met lampjes. Het juiste lampje moet aangestoken worden. Veel lampjes geven kortsluitin door pat. Het lampje aan de andere kant 1.g4? faalt op 1... ♚f4! De witte lamp aan de top zou naar veld i4 moeten, maar ja, dat is buiten de kerstboom.
(Henk Prins (Sliedrecht, the Netherlands): Originele Problemen en Oplossingen. Oplossingen orthodox 2021-4 (oktober-december), in: PROBLEEMBLAD, april-juni 2022)
Henrik Juel: 1.c4 Kd4 2.Kd6 Kxc4 3.La4 Kd4 4.Lb5 Ke4 5.Ld3 Kd4 6.Sc6#
dual 2... Ke4 3.Lb5,c5 (2021-12-05)
comment
Keywords: Symbol problem (Christmas tree), Stalemate dissolution, Flight-giving key, Sacrifice of white pieces (B), Passive sacrifice, Minimal, Symmetrical position, Asymmetrical solution
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 4B3/4N3/4K3/3P1P2/4k3/2P1p1P1/4P3/4B3
Input: Kurt Keller, 2021-12-05
Last update: Kurt Keller, 2022-06-23 more...
65 - P1407780
Claus Grupen
3093 Kieler Nachrichten 06/1991
P1407780
(8+1) C+
#6
1. Le2! Ke6 2. Lb5 Ke5 3. Lf1 Ke6 4. Lh3+ Ke5 5. Kg4 Ke6 6. Kf4#
play all play one stop play next play all
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comment
Keywords: Keirans theme, discovered checkmate, Battery creation, Batteriematt diagonal, Flight-giving key, Königsbatterie, Stalemate dissolution, Periführung, Rex solus (s), Switchback (k)
Genre: n#
Computer test: Gustav 4.1 a
FEN: 6N1/8/6P1/2P1k3/4P1B1/2P3K1/5N2/8
Input: Gunter Jordan, 2023-02-13
Last update: Gunter Jordan, 2023-02-14 more...
66 - P1411411
Valery Surkov
9226 Seven Chess Notes 183 04/2021
Ehrende Erwähnung
P1411411
(4+1)
#4
1. Kd7? patt

1. Kc7! Ke5 2. Kd7+ Kd5 3. Sc3+ Kc5 4. La7#
1. ... Ke6 2. Kc6! Ke7 3. Ld6+ Ke6 4. Sc5#
3. ... Kd8,Ke8 4. Tf8#
play all play one stop play next play all
Henrik Juel: missing stipulation: #4 (2023-07-30)
Henrik Juel: C+ Popeye 4.61 (2023-07-30)
comment
Keywords: Stalemate dissolution, Tempo Winning Manouevre, Aristocrat, Miniature, Flight giving and taking key, Rex solus (s)
FEN: 1B1K4/8/8/3k4/N4R2/8/8/8
Input: Rainer Staudte, 2023-07-30
Last update: Gunter Jordan, 2023-07-30 more...
67 - P1411412
Valery Surkov
9169 Seven Chess Notes 182 03/2021
P1411412
(4+1)
#4
b) alle eine Linie nach rechts
a) 1. Td7! Kb5 2. Kb3! Kc5,Ka5 3. Lf2! Kb5 4. Td5#
1. ... Kc5 2. Kb3! Kb5 3. Lf2+ Ka5 4. Td5#

b) 1. Ka3! Kc3 2. Td5! Kc2 3. Se3+ Kc3 4. Td3#
3. ... Kc1,Kb1 4. Td1#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (with twi shi a1 b1) (2023-07-30)
comment
Keywords: Stalemate dissolution, Twin, Rex solus (s), Aristocrat
Genre: n#
FEN: 8/8/8/3R4/1Nk5/8/K7/4B3
Input: Rainer Staudte, 2023-07-30
Last update: Gunter Jordan, 2023-07-30 more...
68 - P1411829
F. G. Knott
Boston Sunday Post 17/03/1901
P1411829
(5+2)
#3
1. Lc6! droht 2. Te4#
1. ... dxc6 2. d7 droht 3. d8=D#,d8=T#
play all play one stop play next play all
Motto: Ich weiss nicht was.
Henrik Juel: C+ Popeye 4.61 (apart from the promotion mate dual) (2023-08-16)
comment
Keywords: Promotion (D,T), Sacrifice key (L), Stalemate dissolution, Minimal, Miniature
Genre: 2#
FEN: 8/3p4/3P4/8/3k4/5B2/2RKR3/8
Input: Rainer Staudte, 2023-08-16
Last update: Rainer Staudte, 2023-08-16 more...
69 - P1412749
Jozsef Korponai
21 Sztalinvaros 06/09/1955
P1412749
(5+1)
#2
1. d8=S? droht 2. Se6#
1. ... Kf8!

1. d8=L! Kf8,Kg8,Kh8 2. Lf6#
play all play one stop play next play all

Duplicate Diagram: P1166867

Henrik Juel: C+ Popeye 4.61 (2023-10-05)
comment
Keywords: anticipated (P1349543), under-promotion key (L), Stalemate dissolution
Genre: 2#
FEN: R7/1P1P2k1/6P1/6K1/8/8/8/8
Input: Rainer Staudte, 2023-10-05
Last update: Rainer Staudte, 2023-10-05 more...
70 - P1413202
Claus Grupen
2011/10 Schach in Schleswig-Holstein 03/2011
P1413202
(4+4) C+
#5
1. Sh7! Kg4 2. Ke4 Kh4! 3. Sd4 Kg4 Sf3 h4 5. Sf6#
play all play one stop play next play all
Stefan Felber: Kein Modellmatt! (2023-10-27)
Gerald Ettl: Warum soll das kein Mustermatt sein? Fuer mich ist es eins. (2023-10-28)
SCHRECKE: Das Feld h4 ist geblockt+gedeckt! (2023-10-28)
Gerald Ettl: geblockt macht nichts aus, nur wenn es 2-mal von Weiss gedeckt ist, dann wuerde es was ausmachen. (2023-10-29)
SCHRECKE: Die Definition des M. lautet: "Mattbild, bei dem alle weissen Figuren ... mitwirken und jedes Feld um den schwarzen König nur einfach gedeckt oder geblockt ist."
Jedes Feld darf also nur aus einem (!) Grund für den sK unzugänglich sein und das ist nicht der Fall. Hier liegt definitiv kein M. vor ... (2023-10-30)
Gerald Ettl: Danke Schrecke, das war mir auch neu. Ausserdem habe ich nochmal bei ein paar Schachfreunden nachgefragt, die sind auch der Meinung, dass es kein Mustermatt ist. (2023-10-30)
Henrik Juel: for what it may be worth: I also think that there is no model mate here (2023-10-30)
comment
Keywords: Switchback (Sk), Flight-giving key, Model mate, Stalemate dissolution, Rücknahme Schlüsselzug
Genre: n#
Computer test: Gustav 4.1 a
FEN: 8/8/4NN1p/4K2p/7k/7p/7P/8
Input: Gunter Jordan, 2023-10-27
Last update: Gunter Jordan, 2023-10-27 more...
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