Die Schwalbe

45 problem(s) found in 3916 milliseconds (displaying 45 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT A='Beasley, John Derek' AND A='Ashusin, Alexandr A.'] [download as LaTeX]

1 - P1007601
Aleksandr Azhusin
8858v Die Schwalbe 06/1995
P1007601
(5+2) C+
s#15
1. g4? Ka1 2. Sc2+ Ka2 3.?, daher
1. Ld1! Ka1 2. Sc2+ Ka2 3. g4! Kb3 4. Se3+ Ka2 5. g5 Ka1 6. Sc2+ Ka2 7. g6 Kb3 8. Se3+ Ka2 9. g7 Ka1 10. Sc2+ Ka2 11. g8=T! Kb3 12. Se3+ Ka2 13. Tb8 Ka1 14. Sc2+ Ka2 15. Tb2+ axb2#
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Da wagten sich wieder mehr Löser heran.
PG: Originelles Pendel, um Zeit zu gewinnen. - AG: Schönes Schmankerl zur Erholung. - WW: Erfrischend. - HM: Leicht, aber nicht langweilig. - DrRJB: Löserfreundlicher Ausklang. - 2,9/II/7
Frank Müller: Genau deswegen gab es ja die Korrektur - jetzt nebenstehend. Sorry Olaf - bitte nochmal prüfen. (2010-02-01)
Olaf Jenkner: Brute Force ist nicht möglich, aber einen weiteren Cook kann ich mir nicht vorstellen. (2010-02-01)
Anton Baumann: Unglaublich, diese Entwicklung! Die neueste Version von Gustav (4.2a) prüft diese Aufgabe 'brute force' über Nacht (10,5 h): C+ (2022-01-26)
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Keywords: Langzügige Miniatur, Tempo Winning Manouevre, Minimal (b), Pawn mate, under-promotion (T), Ideal mate, Selfblock, Antiphönix, Switchback (Sk), Miniature
Genre: s#
FEN: 8/8/8/8/B7/p3N1P1/k2B4/2K5
Reprints: 349 Selbstmatt-Miniaturen Reflexmatt-Miniaturen 2003
Input: Gerd Wilts, 2003-06-29
Last update: Marcin Banaszek, 2022-01-27 more...
2 - P1008136
Aleksandr Azhusin
9620 Die Schwalbe 165 06/1997
P1008136
(10+2) C+
s#11
1. Kg4! Ka6 2. Ld3+ Kb7 3. Lg3 Kc8 4. Lf5+ Kb7 5. Th2 Ka6 6. Ld3+ Kb7 7. Sg2 Kc8 8. Lf5+ Kb7 9. h4 Ka6 10. Lc8+ Lb7 11. Kh3 Lxc8#
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Den Schluß der Serie fand HM "schon sehr löserfreundlich" und KHS "präzise wie ein Uhrwerk". "Hübsch, wie die erzwungene Pendelei des sK genutzt wird, um das Verlies für den eigenen König zu bauen" (MW). Dem Autor ist es gelungen, das trockene Thema eines zyklischen Platzwechsels von 5 Steinen mit einem selbstmattypischem Pendelmanöver zu einer harmonischen Aufgabe zu formen.
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Keywords: zyklischer Platzwechsel (KBSTL)
Genre: s#
Computer test: Computerprüfung: C+ Gustav 4.1d in 19 Std. 34 Min.
FEN: b7/1k6/2N5/2PP1B2/P6N/6KP/6RB/8
Input: Gerd Wilts, 2003-06-29
Last update: A.Buchanan, 2022-07-15 more...
3 - P1008349
Aleksandr Azhusin
9957 Die Schwalbe 170 04/1998
Informalturnier
6. ehrende Erwähnung
P1008349
(12+5) C+
s#7
1. d8=S Sf7,Sg6 2. Df6+ Se5 3. La3 Sf2,Sg3 4. Df4+ Se4 5. Sce6+ Kd5 6. Lb7+ Sc6 7. Sxc3+ Sxc3#
1. ... Sf2,Sg3 2. Df4+ Se4 3. Ka5 Sf7,Sg6 4. Td2+ cxd2 5. De5+ Sxe5 6. c3+ Sxc3 7. Sc6+ Sxc6# Diese Aufgabe zeigt " schöne echoartige Mustermatts; auch hübsch anzusehen, wie die wDame die sSS unter Kontrolle bringt " (MW). " Bei diesem geschickt bewerkstelligten Echo kommt nicht nur der Löser auf seine Kosten " (MR). Wer durch dieses Werbestück für die Böhmische Schule Lust auf mehr bekommen hat, dem kann der SB die ausgezeichnete Monografie "The dynamic echo in the Bohemian selfmate" von J. Jelinek nur empfehlen.
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Genre: s#
Computer test: S.B. Dowd: Gustav 3.2 d
FEN: 7n/2NP4/BP1B4/6Q1/K2k4/1Pp2P1p/2P4R/3N3n
Input: Gerd Wilts, 2003-06-29
Last update: Dieter Berlin, 2024-01-19 more...
4 - P1008492
Aleksandr Azhusin
10186 Die Schwalbe 174 12/1998
P1008492
(7+9) C+
s#3 (*)
* 1. ... bxc1=L 2. Te4+ b4 3. Te3+ Lxe3#
* 1. ... bxc1=S 2. Tc4+ b4 3. Tc3+ Sb3#
1. Tf1 gxf1=L 2. Td4+ b4 3. Td3+ Lxd3#
1. ... gxf1=S 2. Te4+ b4 3. Te3+ Sxe3#
1. ... g3 2. Txg1 hxg1=L 3. Txb5+ Lc5#
2. ... hxg1=S 3. Df3+ Sxf3#
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später (10/1999) gab der Autor hierzu eine Version 10186v an.
Cook: Duale im Satzspiel: Nach 1. ... bxc1=S geht auch 2. Txb2+, 2. Df7 und 2. Dg7.
Iwan Soroka: Vergleich mit dem Vorgänder P1092403. (2014-12-08)
Anton Baumann: Version zur Beseitigung der Duale im Satzspiel:
wDb7 nach a8, -sBa4, +sSa7, +wLe8 (8+9) (2024-01-20)
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Keywords: reciprocal changed continuations, under-promotion B/S
Genre: s#
Computer test: Popeye 4.69
FEN: 5B2/1Q6/8/1p6/pR3Pp1/k7/1pP3pp/1KR3rr
Input: Gerd Wilts, 2003-06-29
Last update: Alfred Pfeiffer, 2014-12-08 more...
5 - P1008688
Aleksandr Azhusin
10514 Die Schwalbe 179 10/1999
P1008688
(8+6) cooked
s#13
1. c8=T+ Kd6 2. d8=T+ Ke6 3. e8=T+ Kf6 4. Df1+ Sf4 5. Tf8+ Ke6 6. De1+ Se2 7. Tde8+ Kd6 8. Dd2+ Sd4 9. Sa2 (droht 10.Tcd8+ Kc6 11.Dxc2+ Sxc2 12.Sb4+ Sxb4#) c1=D,T 10. Tcd8+ Kc6 11. Dxc1+ Sc2 12. Dh1+ (Rückkehr) g2 13. Sb4+ Sxb4#
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Cook: 1. d8=D g5 2. e8=T g4 3. Th8 g6! (3.- g5 4.Th2 wird s#12) 4. c8=L g5 5. Th2 gxh2 6. Ld7+ 7. Lxg4+ 8. Dc8+ Kd6 9. Dxh2+ Sf4 10. Sa2 c1=D 11. Dd8+ Kc6 12. Dd5+ Sxd5 13. Sb4+ Sxb4#
Die dreifache T-Unterverwandlung ist der Auftakt zu einer bemerkenswerten systematischen Bewegung. Im Zusammenspiel von wD und den wTT wird der sSpringer und der sKönig in die Mattstellung bugsiert. Die besondere Würze ist der stille 9. Zug mit der Drohung. Aber dieser Edelstein muss noch weiter geschliffen werden, denn W. Will fand eine Nebenlösung.
Anton Baumann: Korrektur Autor in 'Die Schwalbe' 6/2000: +sBh2, +sBh7
Aber Bo Lindgren fand Abkürzung (vergl. 'Die Schwalbe' 8/2001 S.198):
1.c8=T+ ... 4.Df1+ Sf4 5.Tf8+ Ke6 6.Dc4+! Sd5 7.De2+ Se3 8.Tde8+ Kd6 9.Dd3+ Sd5 10.Sa2 nebst 11.Tcd8+ Kc6 12.Sb4+ Sxb4# (2023-02-14)
comment
Keywords: konsekutive Umwandlungen 3 (TTT)
Genre: s#
FEN: 8/R1PPP1p1/K1k3p1/R7/8/6p1/2p3n1/2N4Q
Input: Gerd Wilts, 2003-06-30
Last update: Olaf Jenkner, 2019-03-24 more...
6 - P1008877
Aleksandr Azhusin
Frank Müller

10831 Die Schwalbe 184 08/2000
P1008877
(9+3) cooked
s#19
(A. Ashusin & F. Müller). Sofortiges 1.Sg4? f:g4# scheitert noch an 1.- e5! Deshalb sollte dieser Bauer durch ein Pendelmanöver wie folgt ausgeschaltet werden: 1.Lf1 Ke4 2.Ld3+ Kf4 3.Le2 Ke4 4.Lf3+ Kf4 5.Lh5 Ke4 6.La6 Kf4 7.Lf7 Ke4 8.f4 K:f4 9.L:e6 Ke4 10.Ld5+ Kf4 11.Lf7 Ke4 12.Lg6 Kf4 13.Lh5 Ke4 14.Lf3+ Kf4 15.Le2 Ke4 16.Ld3+ Kf4 17.Lf1 Ke4 18.Lg2+ Kf4 19.Sg4 f:g4# KHS: " Beseitigung der störenden Masse des sBe5 durch den wL mittels ständiger Beschäftigungslenkung des sK; präzise wie ein Uhrwerk! " Letzteres stimmt leider nicht, denn es geht wesentlich profaner: 1.Sg4 e5 2. Lc5 e4 3.La3 e3 4.Lc1 f:g4#. Also leider keine " Werbung für den Mehrzüger " (WW). Der Sachbearbeiter bedauert diesen Anfall von Schachblindheit außerordentlich!
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Cook: 1. Sg4 e5 2. Lc5 e4 3. La3 e3 4. Lc1 fxg4#
MTri: possible correction: -wBd4, +wSc6, +wPd2, wPc3 – b5, +bSa8, +bPPb6c7c5h5; s#19 (10+8)

n7/2p5/1pN1p3/1Pp1Np1p/2P2k1P/7K/3P1PBP/8

solution:

1.Sg4? e5!

1.Lf1! Ke4 2.Ld3+ Kf4 3.Le2 Ke4 4.Lf3+ Kf4 5.L:h5 Ke4 6.Lg6 Kf4 7.Lf7 Ke4 8.f4 K:f4 9.L:e6 Ke4 10.Ld5+ Kf4 11.Lf7 Ke4 12.Lg6 Kf4 13.Lh5 Ke4 14.Lf3+ Kf4 15.Le2 Ke4 16.Ld3+ Kf4 17.Lf1 Ke4 18.Lg2+ Kf4 19.Sg4 f:g4# (2023-06-03)
MTri: .. also cooked: 1.Sf7 e5 2.Lh1 e4 3.Sfe5 e3 4.Lf3 e:d2! 5.Le2 Ke4 6.Ld3+ Kf4 7.Lc2 d1D 8.L:d1 Ke4 9.Lf3+ Kf4 10.Le2 Ke4 11.Ld3+ Kf4 12.Lf1 Ke4 13.Lg2+ Kf4 14.Sg4 f/h:g4# [O. Jenkner] (2023-07-18)
comment

Genre: s#
FEN: 8/8/4p3/4Np2/2PB1k1P/2P4K/5PBP/8
Input: Gerd Wilts, 2003-07-01
Last update: Frank Müller, 2015-02-01 more...
7 - P1009227
Yuri Markovic Gordian
Aleksandr Azhusin
Andrey Selivanov

11432 Die Schwalbe 194 04/2002
P1009227
(15+9) C+
s#4
(J. Gordian, A. Ashusin & A. Seliwanow)
1. Kb6! droht 2. Td6+ Txd6#
1. ... Lxg6 2. Td3+ Kxe4 3. Te3+ Kd4 4. Te4+ Lxe4#
1. ... Sxg6 2. Le3+ Kc3 3. Lf4+ Kd4 4. Le5+ Sxe5#
1. ... hxg6 2. Sc2+ Kxe4 3. Sce3+ Kd4 4. Sf5+ gxf5#
1. ... Sf7 2. Td6+ Sxd6 3. Le3+ Kc3 4. Dc5+ Sc4#
In diesem exzellenten Vierzüger wird nach dem Schlag des Tg6 in den drei (EG: allesamt nervenzerfetzenden) Themavarianten Aufbau und Spiel von verschiedenen schwarzen und weißen Batterien präsentiert. In der zusätzlichen Sf7-Variante wird eine weitere Batterie auf der 6. Reihe geschaffen. EP formuliert kurz und zutreffend: " Fantastic " während KHS ausfürlicher war " Siers-Rössl, verbunden mit dem Aufbau einer schwarzen Batterie mit dem Th6 als Hinterstein, dreimal Spiel auf g6, einmal auf d6, viel Inhalt für den hohen Materialaufwand. "
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SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-03-14)
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Genre: s#
FEN: 7n/PPPP3p/p1K3Rr/Q5pb/1p1kP1P1/1P5R/1p1B2N1/NB6
Input: Gerd Wilts, 2003-07-01
Last update: Marcin Banaszek, 2022-03-16 more...
8 - P1014323
Aleksandr Azhusin
11218 Ideal-Mate Review 07-09/2000
P1014323
(8+2) C+
s#11
1. Sd2+ Kd3 2. Lb5+ Kc2 3. Ta2+ Kxd1 4. La4+ Kc1 5. Tc2+ Kd1 6. Tb2+ Kc1 7. Sb3+ Kd1 8. Tb1+ Kc2 9. Sb4+ Kxb1 10. Da1+ Lxa1 11. Lb2 Lxb2#
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Keywords: Aristocrat, Ideal mate
Genre: s#
Computer test: Computerprüfung: C+ Gustav 4.1d in 2 Tagen 21 Std. 34 Min. Computerprüfung: C+ Gustav 4.1d in 2 Tagen 21 Std. 34 Min.
FEN: 4B2B/6b1/N7/4Q3/2k5/K7/8/R2R1N2
Input: Frank Müller, 2004-05-01
Last update: A.Buchanan, 2022-07-15 more...
9 - P1015741
Aleksandr Azhusin
9692 Die Schwalbe 08/1997
P1015741
(5+2) C+
s#14
1. Tc3+?? bxc3 und es fehlt ein Block auf c1
1. Da5? patt

1. Tb2+! Kc3 2. Tbd2+ Kb3 3. Da5 Kc3 4. f4 Kb3 5. f5 Kc3 6. f6 Kb3 7. f7 Kc3 8. f8=L Kb3 9. Lh6 Kc3 10. Da1+ Kb3 11. Tb2+ Kc3 12. Tc2+ Kb3 13. Tc3+ bxc3 14. Lc1 c2#
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Exzelsior
1879
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Keywords: Excelsior white, Minimal (b), Miniature, under-promotion (L), Selfblock, Pawn mate, Checking key
Genre: s#
Computer test: Computerprüfung C+ Gustav 4.1d in 4 Tagen 13 Std. 22 Min.
FEN: 8/8/8/8/1p1R4/1k6/2R2P2/QK6
Reprints: 1280 Selbstmatt-Miniaturen Reflexmatt-Miniaturen 2003
1280 Selbstmatt-Miniaturen Reflexmatt-Miniaturen 2003
679 Album Russia Miniatures 1992-2000 2012
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Gunter Jordan, 2023-01-27 more...
10 - P1016792
Aleksandr Azhusin
126 Shakhmatnaya Kompozitsiya 10-12/1992
3. ehrende Erwähnung
P1016792
(8+7)
s#4
1. f8=S droht 2. Tb6+ Kc7 3. Txc6+ Lxc6+ 4. Db7+ Lxb7#
1. f8=S Sd5 2. Tb8+ Kc7 3. Sb5+ cxb5 4. Db6+ Sxb6#
1. f8=S Lc7 2. Txc7+ Kxc7 3. Db6+ Kc8 4. Dxc6+ Lxc6#
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Anton Baumann: NL: 1.Tb1+ Kc7,Kd7 2.e8=D droht 3.Daxc6+ Lxc6 4.Tb7+ Lxb7#
analog: 1.Tb2+ ... 1.Tb8+ (2023-11-08)
Gerald Ettl: Verbesserungsvorschlag: wLe7 und +sBb6 (2023-11-09)
comment

Genre: s#
FEN: K1k5/PR2PP2/Q1p5/2P2p2/4b3/N1np4/7b/8
Input: Frank Müller, 2004-05-12
11 - P1016930
Aleksandr Azhusin
891 Shakhmatnaya Kompozitsiya 04-06/1997
P1016930
(8+9) C+
s#2
1. Sc6 droht 2. Dg5+ Lxg5#
1. Sc6 Txf4 2. Ld4+ Txd4#
1. Sc6 Td2 2. Dd4+ Txd4# Dentist
1. Sc6 Sxf4 2. Sh5+ Sxh5#
1. Sc6 Te3 2. De5+ Txe5# Dentist
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comment

Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 5R2/2p2bNB/5k1K/2B1NP1n/3r1Q2/r5p1/1p6/2b5
Input: Frank Müller, 2004-05-12
Last update: Dieter Berlin, 2024-02-20 more...
12 - P1016954
Aleksandr Azhusin
955 Shakhmatnaya Kompozitsiya 07-09/1997
Spezialpreis
P1016954
(8+10) C+
s#2
1. Sa1 droht 2. Le2+ Dxe2# (Lxe2#)
1. Sa1 Lf6 2. Dd4+ Lxd4# Dentist
1. Sa1 Lf5 2. Dc2+ Lxc2# Dentist
1. Sa1 Lf4 2. Dd2+ Lxd2# Dentist
1. Sa1 Lf3 2. De2+ Lxe2# Dentist
1. Sa1 Te7 2. De1+ Txe1#
1. Sa1 Txc4 2. Sc3+ Txc3#
1. Sa1 Le2+ 2. Lxe2+ Dxe2#
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Keywords: dentist theme
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: 8/2rp1rp1/q7/p5b1/2B3b1/B7/2N2QP1/1N1k1KRn
Input: Frank Müller, 2004-05-12
Last update: Dieter Berlin, 2024-03-06 more...
13 - P1017025
Aleksandr Azhusin
1264 Shakhmatnaya Kompozitsiya 07-08/1998
3. ehrende Erwähnung
P1017025
(12+5) C+
s#4
1. Kc1! axb1=L 2. Lc4+ Ke4 3. Lb3+ Kd3 4. Lc2+ Lxc2#
1. ... axb1=S 2. Td4+ Kxe3 3. Tc4+ Kd3 4. Tc3+ Sxc3#
1. ... f5 2. Le4+ fxe4 3. c8=D axb1=L 4. Dc2+ Lxc2#
3. ... axb1=S 4. Dc3+ Sxc3#
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SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-12-15)
comment
Keywords: under-promotion B/S
Genre: s#
FEN: 8/B1P5/5p2/3B4/pR3PP1/P2kP3/pP6/rN1K2N1
Input: Frank Müller, 2004-05-12
Last update: Marcin Banaszek, 2021-12-19 more...
14 - P1017054
Aleksandr Azhusin
1367 Shakhmatnaya Kompozitsiya 11-12/1998
3. Lob
P1017054
(7+6) cooked
s#4
1. Dg5! b3 2. Kh2 Kf2 3. Th3 h4 4. Dg3+ hxg3#
1. ... Kf2 2. Sc2 b3 3. Th2+ Kf3 4. Dg4+ hxg4#
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SCHRECKE: Nach 1. ... Kf2 geht dualistisch 2.Te4! Kf3 3.Te2 b3/h4 4.Dg4+/Dg3+ h:g4/h:g3# (2022-02-16)
comment
Keywords: Chameleon Echo
Genre: s#
FEN: 8/7p/B5pr/2Q4p/1p5R/5k1K/1P6/N6R
Input: Frank Müller, 2004-05-12
Last update: Marcin Banaszek, 2022-02-16 more...
15 - P1017384
Aleksandr Azhusin
Shakhmatnaya Kompozitsiya 05-06/2003
Turnier zum 46. WCCC
3. Preis
P1017384
(8+12) C+
s#7
1. Le5! droht 2. Ld6+ cxd6 3. Db2+ Dxb2#
1. ... cxb6 2. Ld5 droht 3. Dc5+ bxc5 4. Lb2+ Dxb2#
2. ... exd5 3. Ld4 droht 4. Lc5+ bxc5 5. Db2+ Dxb2#
3. ... bxa5 4. Dc5+ Kb3 5. Db4+ axb4 6. Sa5+ Ka3 7. Lb2+ Dxb2#
1. ... cxb6 2. Ld5 bxa5 3. Lf3 droht 4. Dc5+ Kb3 5. Db4+ axb4 6. Sa5+ Ka3 7. Lb2+ Dxb2#
3. ... b6 4. Ld1 droht 5. Dc5+ bxc5 6. Lb2+ Dxb2#
4. ... Tb8 5. Dd2 ... 6. Db4+ axb4 7. Lb2+ Dxb2#
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Drohmehrzüger
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comment

Genre: s#
Computer test: Gustav 4.1d
FEN: n1r3bq/1pp4p/1PN1p3/P5P1/p2B3b/k5n1/2Q5/1K5B
Input: Frank Müller, 2004-05-12
Last update: Marcin Banaszek, 2021-04-19 more...
16 - P1089671
Aleksandr Azhusin
2 Shakhmaty v SSSR 1975
P1089671
(7+8)
#2
1. e4! droht 2. a8=D#,T#
1. ... fxe3ep 2. De5#
1. ... 0-0 2. Dg7#
1. ... Dxe4 2. Dxh8#
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Henrik Juel: C+ Popeye 4.61 (2022-06-17)
comment
Keywords: Valladao Task, En passant, Castling, Promotion, Promotion key
FEN: 4k2r/P1pR4/1N6/6p1/5p2/2Q3r1/4P3/K4Rnq
Input: Ivan Antonov, 2009-08-04
Last update: James Malcom, 2022-06-17 more...
17 - P1090376
Aleksandr Azhusin
15207 Ideal-Mate Review 01-06/2006
P1090376
(8+4) C+
s#11
1. Da8+! Lb8 2. Lxe6+ Ke8 3. Lf7+ Kxf7 4. Dd5+ Ke8 5. Sc7+ Lxc7 6. Td8+ Lxd8 7. De6+ Le7 8. Dd7+ Kf7 9. Tf4+ Kg8 10. Tf8+ Lxf8+ 11. Dg7+ Lxg7#
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Moldenhauer: Computerprüfung: C+ Gustav 4.1d in 23 Std. 37 Min. (2022-07-03)
comment
Keywords: Ideal mate
Genre: s#
FEN: 3k4/b2B4/N1QRp1NK/7P/3R4/5n2/8/8
Input: Frank Müller, 2009-08-25
Last update: Marcin Banaszek, 2022-07-07 more...
18 - P1090482
Aleksandr Azhusin
14798 Ideal-Mate Review 04-06/2005
P1090482
(8+2) C+
s#11
1. Lh3! gxh3 2. Th2 Kxh2 3. Scd1 Kg3 4. Tc3+ Kh2 5. Tc4 Kg3 6. Sh1+ Kh2 7. Ld2 Kxh1 8. Sf2+ Kh2 9. Le1 Kg3 10. Tg4+ Kh2 11. Tg2+ hxg2#
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Moldenhauer: Computerprüfung: C+ Gustav 4.1d in 12 Std. 47 Min. (2022-07-26)
comment
Keywords: Ideal mate, Minimal
Genre: s#
FEN: 8/8/8/6B1/6p1/2N3k1/2R1PNB1/5K1R
Input: Frank Müller, 2009-08-28
Last update: Marcin Banaszek, 2022-07-30 more...
19 - P1090483
Aleksandr Azhusin
14799 Ideal-Mate Review 04-06/2005
P1090483
(10+2) C+
s#11
1. Ld7+! Ka7 2. Lb8+ Ka8 3. La7+ Kxa7 4. Ta8+ Kxa8 5. Da6+ Kb8 6. Da7+ Kxa7 7. Sb5+ Kb8 8. Sa6+ Ka8 9. Sac7+ Kb8 10. Ta8+ Txa8 11. Sa6+ Txa6#
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comment
Keywords: Ideal mate, Minimal (t), Checking key
Genre: s#
Computer test: Gustav 4.1d
FEN: k1B4R/8/2K5/2PP4/1N6/N7/R3Q2B/r7
Input: Frank Müller, 2009-08-28
Last update: Gunter Jordan, 2021-12-30 more...
20 - P1090520
Aleksandr Azhusin
14208 Ideal-Mate Review 01-06/2004
P1090520
(6+2) C+
s#11
1. b8=D Kg1 2. Dh2+ Kf1 3. b4 Ke1 4. b5 Kf1 5. b6 Ke1 6. b7 Kf1 7. b8=L Ke1 8. Lg3+ Kf1 9. Dd3+ Le2 10. Tc5 Lxd3 11. Tf5+ Lxf5#
play all play one stop play next play all
more ...
comment
Keywords: Excelsior (L), Ideal mate, Minimal
Genre: s#
Computer test: Gustav 4.1d
FEN: 2R5/1P6/8/8/7P/7K/1P6/1Q1b3k
Input: Frank Müller, 2009-08-29
Last update: Marcin Banaszek, 2021-02-12 more...
21 - P1094517
Aleksandr Azhusin
3032 Schach-Aktiv 05/2005
2. ehrende Erwähnung
P1094517
(13+7) C+
s#12
1. Tc3+! Kd4 2. Tb3+ Kxc4 3. Tc3+ Kd4 4. Tc4+ Kxd5 5. Tc3+ Kd4 6. Td3+ Ke4 7. Sdf6+ exf6 8. Td4+ Ke5 9. Td5+ Kxe6 10. Td4+ Ke5 11. Td3+ Ke4 12. De6+ Sxe6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-14)
comment
Keywords: Beseitigung hinderlicher Masse
Genre: s#
FEN: r3NK2/p2Np1nq/4P3/1p1P4/2P1k3/P2R4/Q2P4/BB3R2
Input: Frank Müller, 2009-11-20
Last update: Marcin Banaszek, 2020-12-14 more...
22 - P1098775
Aleksandr Azhusin
530 The Ural's Problemist 10-12/2009
3. Preis
P1098775
(8+13) C+
s#11
1. a5? Lh6!

1. Lg7! Lxg7 2. Db3 droht 3. Dxd5+ Kxd5#
2. ... Sc7 3. Dg3 droht 4. Dxd6+ Kxd6#
3. ... Se8 4. Dg2 droht 5. Dxd5+ Kxd5#
4. ... Sc7 5. Dxg7 droht 6. Dxf6+ Kxf6#
5. ... Se8 6. Dg2 droht 7. Dxd5+ Kxd5#
6. ... Sc7 7. Dg3 droht 8. Dxd6+ Kxd6#
7. ... Se8 8. Db3 droht 9. Dxd5+ Kxd5#
8. ... Sc7 9. Db6 droht 10. Dxd6+ Kxd6#
9. ... Se8 10. a5 Sc7,Sg7 11. Dxd6+ Kxd6#
1. ... a5 2. Lxf8 Sc7 3. Lg7 Se8 4. Lh8
play all play one stop play next play all
more ...
comment
Keywords: Drohmehrzüger
Genre: s#
Computer test: V. Kotesovec: Gustav 4.1d 64 Bit (Lösezeit: 04 : 34 : 45,49 h, Hashtables: 77823 MB)
FEN: 2b1nb1B/1p1prp2/pQ1pkp2/3p1r2/P2P4/7B/3P4/3RK3
Reprints: F208 FIDE Album 2007-2009 2015
Input: Frank Müller, 2010-02-03
Last update: Vaclav Kotesovec, 2021-09-04 more...
23 - P1115035
Aleksandr Azhusin
659 Sahs 01/09/1972
P1115035
(4+2)
#8
1. Kb1 a3 2. La1 a2+ 3. Kb2 Kh8 4. Kc3 Kh7 5. Kd4 Kh8 6. Ke5 Kh7 7. Kf6 Kh8 8. Kg6#
play all play one stop play next play all
z18 INLK
vf: mit sBb4 = Bell, 05.1995, The Problemist, #8819;
a1<>h1, Tschernych, 15.11.1988, 64-Schachmatnoe obosrenie
SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-08-26)
comment
Keywords: Miniature Collection (0336344)
Genre: n#
FEN: 8/5BBk/8/5N2/p7/8/8/K7
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
24 - P1182773
Aleksandr Azhusin
1109 harmonie 06/2005
3. Preis
P1182773
(10+3) C+
s#10
1. Dd1? Ta4,T~ 2. Le4+ Txe4 3. g4+ fxg3ep+ 4. Dg4+ Txg4#
aber 2. ... Kxe4!
1. Db5+! Te5 2. Dd3+ Te4 3. Sf7 Ke6 4. Sg5+ Kf5 5. Db5+ Te5 6. Db1+ Te4 7. Dd1 Ta4,T~ 8. Le4+ Txe4 9. g4+ fxg3ep 10. Dg4+ Txg4#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-12-02)
more ...
comment
Keywords: En passant, Cross check, Preplan
Genre: s#
FEN: 3N4/3N4/5P2/5k1P/4rp1K/5B1R/3P2P1/1Q6
Input: Frank Müller, 2010-12-21
Last update: Marcin Banaszek, 2020-12-09 more...
25 - P1183568
Aleksandr Azhusin
692v Zadachi i etyudy 01-04/1999
P1183568
(14+9) C+
s#4
1. c8=L! droht 2. Le6+ Ke5 3. Ld7+ Kd5 4. Lc6+ Lxc6#
1. ... b1=D,T+ 2. Db3+ Sxb3 3. Tf4+ (Tc7?) Sf7 4. Td4+ Sxd4#
1. ... f1=D,T+ 2. Dd3+ Sxd3 3. Tc7+ (Tfe7?) Sf7 4. Tc5+ Sxc5#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-03-03)
comment
Keywords: Battery play
Genre: s#
FEN: b3RBBn/2P2R2/PP1P2p1/pK1k2P1/N7/Q3PP2/1p3p2/2n1b3
Input: Frank Müller, 2010-12-30
Last update: Marcin Banaszek, 2022-03-10 more...
26 - P1187053
Aleksandr Azhusin
6446 Sachova skladba 07/2003
P1187053
(11+4) C+
s#6
1. Tg8! bxa4 2. Kf8 a3 3. Te8 a2 4. Dc4+ Kf5 5. e4+ Kf6 6. Sd7+ Sxd7#
1. ... h4 2. Kd8 h3 3. Te8 h2 4. Dg4+ Kd5 5. e4+ Kd6 6. Sf7+ Sxf7#
play all play one stop play next play all
SBD: 1. Kd8? bxa4! 1. Kf8? h4! (2014-06-21)
more ...
comment
Keywords: Banny Theme, Echo-Manöver, Echo
Genre: s#
Computer test: Gustav 4.1d
FEN: 1NR1K2N/8/4Q3/1p2n2p/PP2k3/2P5/4P3/2B3R1
Input: Frank Müller, 2011-02-10
Last update: Marcin Banaszek, 2021-03-14 more...
27 - P1191017
Aleksandr Azhusin
S082 Problem Paradise 37 2006
P1191017
(13+4) C+
s#10
1. dxc7+? Ld5 2. Td8#??
1. Td8+ Kxd8 2. f8=T+ Kd7 3. dxc7+ Ld5 4. Se7 Kxe7 5. c8=S+ Kd7 6. Lc7 Kxc7 7. b8=L+ Kd7 8. b5 cxb5+ 9. c6+ Kxc6 10. Dxb5+ Kxb5#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (17h) (2021-01-20)
comment
Keywords: Phoenix (3x (T,S,L)), konsekutive Umwandlungen 3 (TSL)
Genre: s#
Computer test: Gustav 4.1d
FEN: KBN2R2/PPpk1PP1/2pP4/2P2P2/1P6/3Q4/8/7b
Input: Frank Müller, 2011-03-25
Last update: Marcin Banaszek, 2021-01-24 more...
28 - P1192211
Aleksandr Azhusin
160 Problem-Forum 03/2005
3. Lob
P1192211
(9+10)
s#7
1. Sd5? (droht 2. Dh8 3. Db2+ axb2#) c5 2. Dh8 Td4!
1. Dh8! Tb4 2. Sd5 Tb5 3. Lc6 Tb8 4. Lb7 Txb7 5. Dh1 6. Sf3+ Kxc2 7. Db1+ Txb1#
3. ... Sd7 4. Lxd7 c6 5. Lxc6 Tb3 6. cxb3 7. Db2+ axb2#
5. ... . Tb4/Tb6/Tb7/Tb8 6. Sxb4/Sxb6/Lxb7/Dxb8
play all play one stop play next play all
Anton Baumann: Dual nach 3. ... Sd7 4.Lxd7 Tb7: 5.Lc6 Tb3 6.cxb3...
oder 5.Dh1 nebst 6.Sf3+ ... (2021-05-22)
comment

Genre: s#
FEN: B4n2/p1p5/3p2p1/5p2/p1r5/p2RN2Q/P1P3P1/K1k1N3
Input: Frank Müller, 2011-04-10
Last update: Frank Müller, 2011-04-10 more...
29 - P1193217
Aleksandr Azhusin
Allrussisches Turnier 1992
3. Preis
P1193217
(11+6) C+
s#6
1. b8=L! droht 2. Sd4+ Ke3 3. Sxb5+ Kf3 4. Sd4+ Ke3 5. Se6+ Kf3 6. Dc6+ Lxc6#
1. ... Lb3 2. Se5+ Kf4 3. Sxc4+ Kf3 4. Se5+ Kf4 5. Sg6+ Kf3 6. Dd5 Lxd5#
1. ... Lxc2 2. Dd5+ Le4 3. Sd4+ Ke3 4. Se6+ Kf3 5. Txb2 c3 6. Tc2 Lxd5#
play all play one stop play next play all
Publiziert in Schachmatnaja komposizija 01-03/1992, Seite 23,
auch Quellenangabe 1991 gefunden
SCHRECKE: C+, Gustav 4.1d, Brute Force
Der Schlüsselzug muss allerdings 1.b8L! lauten. (2021-03-02)
James Malcom: Fixed. (2021-03-02)
comment
Keywords: Promotion (L)
Genre: s#
FEN: K7/BP5p/2NQ3R/1p6/bPp4P/5k1P/1pB4R/8
Input: Frank Müller, 2011-04-22
Last update: Marcin Banaszek, 2021-03-07 more...
30 - P1194326
Aleksandr Azhusin
Csak-Majoros 2004
3. ehrende Erwähnung
P1194326
(13+4) C+
s#6
1. Ld8! Sb5,Sb1 2. Tf5+ Kd4 3. c3+ Sxc3 4. Tf4+ Se4 5. h3 a3 6. Lg5 hxg5#, 2. Tc5+?
1. ... Sxc2 2. Tc5+ Kd4 3. Df2+ Se3 4. Kh3 a3 5. Sg3 h5 6. Lh4 hxg4#, 2. Tf5+?
play all play one stop play next play all
more ...
comment
Keywords: Echo
Genre: s#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-03)
FEN: B7/5Q2/1B5p/3R3N/p1k3PK/n2N4/P1PPP2P/8
Input: Frank Müller, 2011-05-01
Last update: Marcin Banaszek, 2021-02-12 more...
31 - P1229009
Aleksandr Azhusin
83 Ceskoslovensky Sach 09/2005
Informalturnier 2005/06
3. Lob
P1229009
(11+5) C+
s#6
1. Sb8! g6 2. Sf6 g5 3. Kg8 g4 4. Dxg4+ Le4 5. De6+ Ld5 6. Sh7 Lxe6#
1. ... g5 2. a7 g4 3. Sa6 g3 4. Lh6 g2 5. De6+ Ld5 6. De4+ Lxe4#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-27)
comment
Keywords: Pawn step variations, Echo
Genre: s#
FEN: 2Q2BN1/3N2pK/P1b5/8/P1k5/2b5/P6p/2RR3B
Input: Frank Müller, 2011-12-31
Last update: Marcin Banaszek, 2021-03-07 more...
32 - P1236374
Aleksandr Azhusin
10118 Thema Danicum 10/2006
2. ehrende Erwähnung
P1236374
(7+2) C+
s#13
1. Te6? Kd5 2. Le4+ Kc4 3. ??
1. Tf6! Kd5 2. Dd6+ Kc4 3. De6+ Td5 4. Da6+ Tb5 5. Ld2 Kd5 6. Td6+ Kc4 7. Te6 Kd5 8. Le4+ Kc4 9. Lc1 Kc3 10. Tc6+ Tc5 11. Da5+ Kc4 12. Lb2 Txc6 13. Da6+ Txa6#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-11-23)
comment

Genre: s#
FEN: 8/8/Q2R2B1/1r6/K1kP4/4P3/8/4B3
Input: Frank Müller, 2012-04-08
Last update: Marcin Banaszek, 2020-11-24 more...
33 - P1247470
Aleksandr Azhusin
123 Ceskoslovensky Sach 08/1997
1. Preis
P1247470
(10+5) C+
s#5
1. Ta4! h5 2. Ta5 h4 3. Ld2 c1=D 4. Lxc1 Sc2 5. Sb4+ Sxb4#
1. ... h6 2. Ka5 h5 3. Se5+ Kxc5 4. Ta6 h4 5. Lxb3 Sxb3#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-10-17)
comment
Keywords: Pawn step variations, Chameleon Echo, Epaulettenmatt
Genre: s#
FEN: 8/R6p/K1k5/2P5/1RB5/1p1NP2P/1Pp5/n1B5
Input: Frank Müller, 2012-08-21
Last update: Marcin Banaszek, 2021-10-17 more...
34 - P1259998
Aleksandr Azhusin
302 Mat Plus 03-06/1997
3. Preis
P1259998
(13+3)
s#5
1. Ta8! fxe5 2. Dxe5 Kxc5 3. Tc8+ Kb6 4. Df6+ Sxf6 5. Sd7+ Sxd7#
1. ... f5 2. Lh1 fxg4 3. Kc8 g3 4. Tb8 g2 5. Se7+ Sxe7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-11-07)
comment
Keywords: Bauernschlag-Varianten, Chameleon Echo, Epaulettenmatt
Genre: s#
FEN: 1K1R1N2/8/2k2pN1/R1PnP3/P3BPP1/P1Q5/8/8
Input: Frank Müller, 2013-01-18
Last update: Marcin Banaszek, 2021-11-11 more...
35 - P1259999
Aleksandr Azhusin
304 Mat Plus 03-06/1997
1. ehrende Erwähnung
P1259999
(12+4) C+
s#6
1. c8=T! Lxf7 2. Df5+ Ld5+ 3. Kh2 Lxg7 4. Tc5+ Kb6 5. Tb5+ Kc7 6. De5+ Lxe5#
1. ... Lxg7 2. Dd2+ Lc3 3. Dg5+ Le5 4. Kh1 Lxf7 5. Dd8+ Lc7 6. Dd5+ Lxd5#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-03)
comment

Genre: s#
FEN: R3B1bb/2P2PPp/P6P/k7/8/P6P/2Q3K1/6B1
Input: Frank Müller, 2013-01-18
Last update: Marcin Banaszek, 2020-12-09 more...
36 - P1265990
Aleksandr Azhusin
811 The Ural's Problemist 07-09/1999
2. Lob
P1265990
(5+3) C+
s#4
1. Df4!
1. ... Kb3 2. Le6+ Kc3 3. Dg4 Kd3 4. Ta3+ Lxa3#
1. ... Kd3 2. Lf1+ Kc3 3. Lb5 Kb3 4. De3+ Lxe3#
play all play one stop play next play all
more ...
comment
Keywords: Echo
Genre: s#
Computer test: Gustav 4.2a, Brute Force
FEN: 8/8/2R5/2b5/R7/2k4B/2p5/2K2Q2
Input: Frank Müller, 2013-03-31
Last update: James Malcom, 2021-12-13 more...
37 - P1266001
Aleksandr Azhusin
895 The Ural's Problemist 10-12/1999
2. ehrende Erwähnung
P1266001
(10+9) C+
s#5
1. Db8+! Kd7 2. Kd4 Ke7 3. g8=S+ Kd7 4. Sxg6 Lxg6 5. Sxb6+ Lxb6#
1. ... Ke7 2. Dg8 Kd7 3. b8=S+ Ke7 4. Sxb6 Lxb6 5. Sxg6+ Lxg6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-09-21)
comment
Keywords: Chameleon Echo, Echo-Manöver
Genre: s#
FEN: N3k2N/1P4P1/1p1Q2p1/bp1PP1pb/1p2K1p1/1P4P1/8/8
Input: Frank Müller, 2013-03-31
Last update: Marcin Banaszek, 2021-09-24 more...
38 - P1274650
Aleksandr Azhusin
3831 Buletin Problemistic 07-12/2001
Informalturnier 2000/01
1. ehrende Erwähnung
P1274650
(9+9) C+
s#6
1. Txc7? patt
1. Ka8? c6 2. Dg4 hxg4 3. ??
1. Dg4! hxg4 2. Lxe6+ Sxe6 3. Te8+ Sf8 4. Tc8 ... 5. Sxh6+ Kg7 6. Txc7+ Sd7#
1. ... c6 2. Tc7 hxg4 3. Tc8+ Se8 4. Ka8 ... 5. Sxh6+ Kg7 6. Tc7+ Sxc7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-06)
comment
Keywords: double-check mate, Echo
Genre: s#
FEN: 1K4kr/PNp1R1np/4pR1p/2p2N1p/2B4B/8/8/6Q1
Input: Frank Müller, 2013-07-20
Last update: Marcin Banaszek, 2021-03-07 more...
39 - P1287448
Aleksandr Azhusin
The Ural's Problemist 07-09/2002
4. Lob
P1287448
(9+7) C+
s#6
1. De5 dxc3+ 2. Kc1 c2 3. Lb5+ Kb3 4. e4 Ka2,Ka3 5. Da1+ Kb3 6. Lxg5 Lxg5#
1. ... d3 2. c7 dxe2 3. Ke1 Kd3 4. c8=S Kc4 5. Sd6+ Kd3 6. Dxg3+ Lxg3#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-11-10)
comment
Keywords: Echo
Genre: s#
FEN: 8/p7/N1P2B2/6p1/B1kpQ1pb/2P3p1/3KP1P1/8
Input: Frank Müller, 2014-08-30
Last update: Olaf Jenkner, 2020-11-10 more...
40 - P1297331
Aleksandr Azhusin
The Ural's Problemist 07-09/2003
Alexej G. Kopnin 85 MT
1.-2. Preis
P1297331
(12+5)
s#11
1. Df3+? Le4 2. Dxd3+ Lxd3+ 3. c4+ bxc3ep+ 4. Ka5
1. Te7! Kd6 2. Lg3+ Kd5 3. Se6 Ke4 4. Sc5+ Kd5 5. Lh4 Kd6 6. Sb7+ Kd5 7. Sa5 Kd6 8. Lg3+ Kd5 9. Df3+ Le4 10. Dxd3+ Lxd3+ 11. c4+ bxc3ep#
play all play one stop play next play all
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2021-03-14)
Henrik Juel: If you just want to find the solution quickly, this info may be useful:
with 'opt non 0 1' the solution was found in a couple of hours, and the testing completed in 8 hours
with 'opt non 0 1 not' the solution was found in 10 minutes ('not' means nothreat) (2021-03-15)
Olaf Jenkner: If you just want to find the solution quickly, start Gustav using "automatische Parameter". The solution will be shown after 10 seconds. (2021-03-16)
Henrik Juel: Can Gustav test this problem in a reasonable time, Olaf? (2021-03-16)
Olaf Jenkner: Yes, if you are patiently. It will take 5-7 weeks. (2021-03-16)
Henrik Juel: Thanks for the information
One would have to be unreasonably patient to consider that a reasonable time... (2021-03-16)
comment
Keywords: Blockführung, En passant, Führung w Figur, Cross check
Genre: s#
FEN: 5N2/8/4RP2/1K1k1b1Q/Pp5B/1r1n4/B1P1NP2/3R4
Reprints: F187 FIDE Album 2001-2003 2011
Input: Frank Müller, 2015-02-08
Last update: Marcin Banaszek, 2021-03-14 more...
41 - P1381402
Aleksandr Azhusin
Gravure 2020
2. Preis
P1381402
(5+3) C+
s#11
1. Thb7! c5+ 2. Kc7 Kf7 3. Kd8+ Kg8 4. Dh5 Kf8 5. Tf7+ Kg8 6. Th7 Kf8 7. Taf7+ Kg8 8. Tc7 Kf8 9. Thf7+ Kg8 10. Tfd7 Kf8 11. De8+ Txe8#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-11-10)
comment
Keywords: Bristol
Genre: s#
FEN: 6k1/R6R/1Kp1r2Q/8/2B5/8/8/8
Input: Olaf Jenkner, 2020-10-31
Last update: Olaf Jenkner, 2020-11-10 more...
42 - P1381405
Aleksandr Azhusin
Gravure 2020
2. ehrende Erwähnung
P1381405
(8+2) C+
s#10
1. Sg5+! Td5 2. Thh8 Kd7 3. Thd8+ Kc6 4. d7 Kc7 5. Se6+ Kc6 6. Te8 Kxd7 7. Te7+ Kc6 8. Sec5 Kd6 9. Se4+ Kc6 10. Sa5+ Txa5#
play all play one stop play next play all
more ...
comment
Keywords: Checking key
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 1R6/K6R/2kP4/1r6/4N3/BN6/8/7B
Input: Olaf Jenkner, 2020-10-31
Last update: Alfred Pfeiffer, 2020-11-03 more...
43 - P1384416
Aleksandr Azhusin
507 Pat a Mat 10-12/2019
1. Preis
Informalturnier 2018-2019
P1384416
(11+4) C+
s#10
1. Te3-e1! Sd4-e2,S~ 2. Td3-d4+ Se2xd4 3. Te1-a1 Sd4-e2,S~ 4. Dd6-d4+ Se2xd4 5. Ta1-a4+ Kc4xc5 6. Sg3-f1 Sd4-e2,S~ 7. d2-d4+ Se2xd4 8. Sf1-d2 Sd4-e2,S~ 9. Lb2-d4+ Se2xd4 10. Sd2xb3+ Sd4xb3#
play all play one stop play next play all
Judge Stanislav Vokál 12/2020
more ...
comment

Genre: s#
Computer test: Gustav 4.0i, Brute Force
FEN: 8/8/P1pQ4/K1P1P3/2kn1N2/1p1RR1N1/1B1P4/8
Reprints: 970 Pat a Mat 12/2020
Input: Marcin Banaszek, 2020-12-29
Last update: Marcin Banaszek, 2021-01-06 more...
44 - P1402140
Aleksandr Azhusin
Andrey Selivanov

S2874 The Problemist 28-5, p. 196, 09/2021
P1402140
(9+10)
s#10
1. Lg7! droht 2. Tge5+ Kd4 3. Txh5+ Ke4 4. Tce5+ Kd4 5. Teg5+ Ke4 6. Lf5+ Kd5 7. Lxg4+ Ke4 8. Te5+ Kd4 9. Tef5+ Ke4 10. Lxf3+ Sxf3#
1. ... Lg6! 2. Tce5+ Kd4 3. Tb5+ Ke4 4. Tge5+ Kd4 5. Tec5+ Ke4 6. Ld5+ Kf5 7. Lc4+ Ke4 8. Te5+ Kd4 9. Ted5+ Ke4 10. Lxd3+ Sxd3#
play all play one stop play next play all
SCHRECKE: 1.Lg7! (droht 2.Tge5+ Kd4 3.T:h5+ Ke4 4.Tce5+ Kd4 5.Teg5+ Ke4 6.Lf5+ Kd5 7.L:g4+ Ke4 8.Te5+ Kd4 9.Tef5+ Ke4 10.L:f3+ S:f3#)
1. ... Lg6! 2.Tce5+ Kd4 3.Tb5+ Ke4 4.Tge5+ Kd4 5.Tec5+ Ke4 6.Ld5+ Kf5 7.Lc4+ Ke4 8.Te5+ Kd4 9.Ted5+ Ke4 10.L:d3+ S:d3# (2022-06-22)
comment

Genre: s#
FEN: 2N5/8/4B3/N1R3Rb/4k1pr/1pBp1pP1/3P1p2/3Knr2
Input: Felber, Volker, 2022-06-22
Last update: Marcin Banaszek, 2022-06-23 more...
45 - P1402236
Aleksandr Azhusin
14107 Springaren 2018
P1402236
(13+12)
s#14
1. a4+! bxa3ep 2. Dxb7+ Kc5 3. b4+ cxb3ep 4. Db4+ Kd5 5. c4+ dxc3ep 6. Td8+ Ld6 7. Tdxd6+ Ke5 8. d4+ exd3ep 9. Te6+ Kd5 10. e4+ fxe3ep 11. Ted6+ Ke5 12. f4+ gxf3ep 13. Sf7+ Kf5 14. g4+ hxg3ep#
play all play one stop play next play all
James Malcom: I came across this attempt at the ultimate record in the SuperProblem record book: http://superproblem.ru/archive/probl/Sn/Azhusin-s14-2018.gif. As such, it seems to have survived human muster so far. However, what say Gustav? (2022-06-26)
Henrik Juel: Popeye 4.61 with 'opt non 0 1 thr 0' found no flaws (2022-06-26)
Olaf Jenkner: It will take Gustav about four weeks to confirm C+. (2022-06-26)
comment
Keywords: En passant (x7), Task (Construction), Switchback (T), En passant as mating move
Genre: s#
FEN: 1R6/Qp6/R6N/1k2b2r/1ppppppp/8/PPPPPPPK/6Nn
Input: James Malcom, 2022-06-26
Last update: James Malcom, 2022-06-26 more...
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