Die Schwalbe

65 problem(s) found in 2981 milliseconds (displaying 65 problem(s)). [COMMENTDATE>=20220810 AND G='h#' AND NOT K='Echo-Kombinationen' AND K='Unterverwandlung'] [download as LaTeX]

1 - P0500807
Mark Kirtley
3859 Ideal-Mate Review 04-06/1990
Lob
P0500807
(2+8) C+
h#7
1. f1=S Kf4 2. Se3 dxe3 3. d2 e4 4. d1=S e5 5. Se3 e6 6. Sf5 e7 7. Sg7 exf8=S#
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Unterverwandlung!Springer!3-fach
Yuri Bilokin: more economical bNh6-f6(-bPf6), bPh5-d5, then a1=b1 6n1/6b1/6nk/4p3/8/4p1K1/4P1p1/8 (2+7) h#7
1.g1=S Kg4 2.Sf3 exf3 3.e2 f4 4.e1=S f5 5.Sf3 f6 6.Sg5 f7 7.Sh7 fxg8=S# (MM)

Slow Excelsior. Active sacrifice (black). Annihilation.
Excelsior (white). Long-trip (bS, promoted, 3) Phoenix. Promotion (Sss, 1, 2)
Model mate × 1 (2023-05-10)
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comment
Keywords: Excelsior white (auto key), under-promotion
Genre: h#
Computer test: C+ PY V3.52.--
FEN: 5n2/5p2/5pkn/7p/8/3p1K2/3P1p2/8
Reprints: 198 Ideal-Mate Encyclopedia Vol.1 1999
Input: Gerd Wilts, 1996-06-06
Last update: Erich Bartel, 2011-07-06 more...
2 - P0501210
Vladimir Korolkov
Problemnoter 1963
P0501210
(2+15) C+
h#4
1. e1=L Txh3 2. f1=T Txh2 3. Kf2 Txh1 4. g1=S Th2#
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Unterverwandlung!Springer, Unterverwandlung!Läufer, Unterverwandlung!Turm, Umwandlungswechsel!3-fach
Adrian Storisteanu: See also slight variation P0577817. (2015-09-12)
Gunter Jordan: Dies ist kein Umwandlungswechsel, dazu müssten die UW auf dem selben Feld erfolgen. (2023-01-11)
A.Buchanan: Why would we talk of helpmate promotions (particularly black ones) as underpromotions. Is a knight ever an under-promotion? And we still with all this under-promotion effort don’t know what the pieces are: it might be rook or bishop. Just label them as promotion:lts and be done (2023-01-12)
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comment
Keywords: under-promotion, Minimal
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/8/5p1R/4pp2/2ppbrnn/4pppr/1K4kb
Input: Gerd Wilts, 1996-06-06
Last update: SBD, 2012-12-26 more...
3 - P0568485
Geza Schweig
247 The Chess Amateur 09/1922
P0568485
(3+3) C+ cooked
h#3*
* 1. ... e7 2. Kf5 e8=L 3. Ke4 Lg6#
* 1. ... e7 2. Kd3 e8=L 3. Ke4 Lg6#
1. e2 e7 2. e1=T e8=L 3. Te3 Lg6#
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SCHRECKE: Die Inkorrektheit besteht darin, dass im Satz 2. Kf5 und 2. Kd3 geht. (2022-10-23)
HBae: Mögliche Korrektur wSd3 statt wLg3, C+ Popeye v4.37 (2022-10-23)
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comment
Keywords: under-promotion (sT, wL), Miniature
Genre: h#
Computer test: (Popeye WINDOWS98-32Bit-Version 3.75 (2048 KB))
FEN: 8/8/4P3/2K5/4k3/4ppB1/8/8
Input: Hans-Jürgen Schäfer, 1999-02-22
Last update: Dieter Berlin, 2022-10-23 more...
4 - P0571490
Imre Toth
Magyar Sakkelet 10/1958
Thematurnier des Budapester Schachverbandes, 1958
3. Preis
P0571490
(6+2) C+
h#2
3.1...
1) 1. e1=S Te5 2. Sxd3 Sc6#
2) 1. e1=T Te5 2. Te3 Td5#
3) 1. e1=L La5 2. Lc3 Lb6#
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Weiß setzt immer mit einer solchen Figur matt, die sich Schwarz eben ausgewählt hat!
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comment
Keywords: Minimal (b), under-promotion key (1) sS 2) sT 3) sL)
Genre: h#
Computer test: (Popeye C-Version 3.47 (1024 KB))
FEN: 8/4N3/7K/8/1B1k4/1P1PR3/4p3/8
Reprints: 537 Ungarische Schachprobleme mit wenigen Steinen [Bakcsi] , p. 155, 1985
Input: Franz Pachl, 1999-04-01
Last update: Dieter Berlin, 2023-08-13 more...
5 - P1074078
Fadil Abdurahmanovic
Michael Rittmann
13217v Die Schwalbe , p. 163, 07/2005
3. ehrende Erwähnung
P1074078
(2+11) C+
h#6
0.2.1...
1) 1. ... e4 2. Lb8 e5 3. Ld6+ exd6 4. c1=L d7 5. Lb2 d8=D 6. Lg7 Dd3#
2) 1. ... e3 2. Ta5 e4 3. Tf5 exf5 4. c1=T f6 5. Tg1 f7 6. Tg7 f8=S#
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Yuri Bilokin: you can see *) 1.Ra5 e4 2.Rf5 exf5 3.c1=R f6 4.Rg1 f7 5.Rg7 f8=S# (2022-09-30)
comment
Keywords: Allumwandlung, Promotion, under-promotion, under-promotion in mating move (in 2), Excelsior white, Model mate, Selfblock, changed blocks, Minimal (B), Pawn step variations
Genre: h#
Computer test: (Popeye WINDOWS-32Bit V4.37 (1580608 KB))
FEN: 6nq/b6k/1p2p2p/8/1K6/rp6/b1p1P3/8
Input: hpr, 2007-09-09
Last update: Gunter Jordan, 2020-03-04 more...
6 - P1196784
Gunter Jordan
209 Pat a Mat 71 06/2010
P1196784
(2+2)
h#3
2 Lösungen
Vogtländerschach
Weißer Längstzüger
1. c1=L Sa3 2. Lxa3 Kb6 3. Kb2 Kc5#
1. Kd3 Sd2 2. Kxd2 Kb4 3. c1=L Ka3#
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Henrik Juel: C+ Popeye 4.61 (2023-01-19)
comment
Keywords: Echo, Maximummer (Weiss), Promotion key, under-promotion, Vogtländer Chess
Genre: h#, Fairies
FEN: 8/8/8/K7/2N5/2k5/2p5/8
Input: Gunter Jordan, 2011-06-03
Last update: A.Buchanan, 2024-01-18 more...
7 - P1236919
Reinhardt Fiebig
2908 idee & form , p. 3609, 04/2011
P1236919
(2+10) C+
h#6
1. Lg3 hxg3 2. e1=L g4 3. Da1 gxf5 4. Da7 f6 5. La5 fxe7 6. Ld8 exd8=D#
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more ...
comment
Keywords: Minimal, under-promotion (sL), Promotion in the mating move (wD), Excelsior white
Genre: h#
Computer test: A. Baumann: Gustav 4.2a
FEN: 1k6/1p2p1q1/8/2p2p2/7p/8/4p1pP/4b1K1
Input: Felber, Volker, 2012-04-15
Last update: Dieter Berlin, 2024-01-25 more...
8 - P1333328
Jorma Pitkänen
Springaren 138, p. 162, 12/2015
P1333328
(2+6) C+
h#7
0.2.1...
1) 1. ... g3 2. Lf4 gxf4 3. Se5 fxe5 4. f2 e6 5. f1=T e7 6. Td1 e8=D+ 7. Td8 Dc6#
2) 1. ... gxf3 2. f4 fxg4 3. f3 g5 4. f2 g6 5. f1=T g7 6. Tf8 g8=S 7. Td8 Se7#
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Ausschreibungsbeispiel zum Pitkänen JT-75
Yuri Bilokin: you can see 1.f2 g3 2.f4 gxf4 3.Be5 fxe5 4.f1=R e6 5.Rc1 e7 6.Rc7 e8=Q#
1.f2 g3 2.Bf4 gxf4 3.Se5 fxe5 4.f1=R e6 5.Rc1 e7 6.Rc7 e8=Q#
1.f4 g3 2.f2 gxf4 3.Be5 fxe5 4.f1=R e6 5.Rc1 e7 6.Rc7 e8=Q#
1.f4 g3 2.Be5 gxf4 3.f2 fxe5 4.f1=R e6 5.Rc1 e7 6.Rc7 e8=Q# (2023-08-15)
comment
Keywords: Excelsior, Excelsior white, Ideal mate (in 2), Minimal, Selfblock, Promotion, under-promotion
Genre: h#
FEN: K1k5/2bn4/8/5p2/6p1/5p2/6P1/8
Input: Gunter Jordan, 2017-04-16
Last update: Gunter Jordan, 2017-04-16 more...
9 - P1361709
Torsten Linss
1768 Gaudium 203 26.02.2019
1. Preis
Abt. h#3,5-n
Informalturnier 2019/2020
PR Rainer Kuhn
P1361709
(2+5) C+
h#7
1. d5 Kd3! 2. d4 Kc2 3. d3+ Kc3 4. d2 Kc2! 5. d1=L+ Kd3 6. Lb3 Kc3 7. La2 Lb2#
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Henrik Juel: Two roundtrips by wK, very nice (2019-02-27)
Jakob Leck: Compare to P1293839 (2022-10-07)
comment
Keywords: Pure Round Trip (K), Excelsior (l), under-promotion (l), Klasinc theme (K-b), Miniature, Minimal (L), Selfblock, Line opening, Model mate
Genre: h#
FEN: 8/3p4/8/6b1/r7/k1K5/8/B3r3
Reprints: 03781 Finales... y Temas 126, p. 2506, 12/2022
Input: TLi, 2019-02-27
Last update: Gunter Jordan, 2023-01-20 more...
10 - P1368087
Dieter Müller
Aleksandr Pankratiev
11220 Die Schwalbe 190, p. 180, 08/2001
P1368087
(5+13) C+
h#3
2.1...
b) sTf4->d5
a1) 1. Sd4 Lf1 2. exf1=S Sf3 3. Se3 Sg5#
a2) 1. Ke3 Sf3 2. Kf2 Sxe1 3. Kxe1 Sd3#
b1) 1. Td4 Sf1 2. exf1=L Sd5 3. Ld3 Lg2#
b2) 1. Ke3 g5 2. Kf2 Sd3+ 3. Kg1 Sf3#
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Anton Baumann: Version in 'Die Schwalbe' 04/2002 S.420 (BuB):
-sBe6, Dh8 nach e6 ; Lösung unverändert (C+) (2024-02-13)
comment
Keywords: under-promotion (s,l)
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 7q/8/2n1p3/4p3/1N2krP1/2p4B/p1p1p2N/1bK1b2r
Input: Felber, Volker, 2019-10-08
Last update: Alfred Pfeiffer, 2019-10-08 more...
11 - P1379073
Ottó Titusz Bláthy
56 Magyar Sakkvilag 01/02/1924
P1379073
(8+10)
h#40
(nicht exakt!)
1. Lg7 Ke8 2. Lf8 Kd8 3. Lg7 Kd7 4. Lf8 Kc6 5. Lg7 Kb5 6. Lf8 Kb4 7. Lg7 Kc3 8. Lf8 Kd2 9. Lg7 Ke1 10. Lf8 Kf1 11. Lg7 Kg1 12. Lf8 Kh2 13. Lg7 Kh3 14. Lf8 Kg4 15. Lg7 Kxf3 16. Lf8 Ke2 17. Lg7 Kd2 18. Lf8 Kc3 19. Lg7 Kc4 20. Lf8 Kb5 21. Lg7 Kc6 22. Lf8 Kd7 23. Lg7 Ke8 24. Lf8 Kxf8 25. f3 Ke8 26. Kg7 Kd8 27. Kf8 Kc8 28. Ke8 Kb7 29. Kd8 Kb6 30. Kc8 Kc6 31. Kb8 Kd7 32. Ka8 Ke8 33. Kb8 Kf8 34. Kc8 Kxg8 35. Kd8 Kf8 36. Kc8 Kxe7 37. Kb8 Kd7 38. Ka8 Kc6 39. Kb8 e7 40. Kc8 e8=D#,e8=T#
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Henrik Juel: The late part of the solution is dualistic (2020-08-14)
Joost de Heer: The first dual is already at move 6 (Kb4 or Kc4), so it's not just the late part that's dualistic. (2023-01-30)
comment
Keywords: Promotion in the mating move, under-promotion in mating move (T)
Genre: h#
FEN: 5bnk/4pK1p/3pPp1p/3P1P1P/3P1p2/3P1p2/5P2/8
Input: Rainer Staudte, 2020-08-14
Last update: James Malcom, 2023-01-31 more...
12 - P1379087
Eberhard Schulze
18085 Die Schwalbe 301, p. 449, 02/2020
P1379087
(2+9) C+
h#7
1. f3 Kf1 2. f2 Kg2 3. f1=S Kf3 4. Se3 dxe3 5. f4 exf4 6. Lf7 Kg4 7. Th6 f5#
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more ...
comment
Keywords: Antiphönix, Pawn mate, Ideal mate, Minimal (B), Selfblock, Tempo Loss, under-promotion (s), Homebase
Genre: h#
Computer test: Henrik Juel: C+ Popeye 4.61 (2023-06-30)
FEN: 8/6bn/4bpk1/5p1r/5p2/3p4/3P4/4K3
Input: Gunter Jordan, 2020-08-14
Last update: Felber, Volker, 2023-07-01 more...
13 - P1379841
Steven B. Dowd
Mirko Degenkolbe
Springaren 2007
P1379841
(2+15) C+
h#7
Nullstellung
a) -wBg3, +wSe8, sKa1->a2
b) +wTh3
c) +wLh4
a) 1. Ka1 Sd6 2. Ka2 Sc4 3. Ka1 Sxb2 4. Ka2 Sc4 5. Lcb2 Sxd2 6. La1 Sxb3 7. Tb2 Sc1#
b) 1. Ka2 g4 2. Ka1 Txf3 3. Le2+ Kg2 4. d1=S Tf4 5. Sd2 Txb4 6. b1=T Txb3 7. Sb2 Txa3#
c) 1. Ka2 Lf6 2. Ka1 Lxc3 3. Ka2 Lxd2 4. Td3 Le1 5. Kb3 Lxf2 6. Kc3 g4 7. Kd2 Le1#
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Korrekturfassung zu P1354237
(MD0400a)
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comment
Keywords: under-promotion (s), Obvious promotion, Minimal
Genre: h#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/8/8/1p6/brp1ppP1/1prp1p2/knbb1K1n
Input: Felber, Volker, 2020-09-10
Last update: Felber, Volker, 2023-01-12 more...
14 - P1384339
Krzysztof Drazkowski
H1093 Problemist Ukrainy 04-06/2020
P1384339
(2+8) C+
h#7
1. f3-f2 h2-h3 2. f2-f1=S h3-h4 3. Sf1-g3 h4-h5 4. Sg3-f5 h5-h6 5. Sf5-g7 h6xg7 6. Kb2-b1 g7-g8=D 7. a2-a1=T Dg8-b3#
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Viktoras Paliulionis: Illegal position because White has no last move. (2023-02-02)
Anton Baumann: mögliche Korrektur: wBf3 nach f2, mit Forderung h#6: 1.f1=S h4 ... (2023-02-13)
comment
Keywords: under-promotion (st), Promotion (D), Selfblock, Antiphönix, Excelsior white, Kindergarten Problem, Minimal (B)
Genre: h#
Computer test: Gustav 4.1c
FEN: 8/7p/8/8/8/2pppp2/pk1p3P/3K4
Input: Marcin Banaszek, 2020-12-28
Last update: Gunter Jordan, 2020-12-28 more...
15 - P1401191
Norbert Geissler
Raúl Jordan
2241 Gaudium 250 31/10/2021
1. Preis
Abt. h#2,5-3,5
PR Manfred Rittirsch
P1401191
(5+13) C+
h#4
0.2.1...
1) 1. ... Se1+ 2. fxe1=L Kc2 3. Kf2 Kc2-d1 4. Dg2 Lxe1#,
2) 1. ... Le1 2. fxe1=S Kd2 3. Tf2+ Kd2-d1 4. Kf3 Sxe1#
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Schlüssel- und Mattzüge auf das gleiche Feld.
A.Buchanan: Hi Gunter thanks for your scholarship. The specified syntax for PDB is to separate phases by commas. If something only occurs in 1 phase I guess it would be e.g. "L,". It is not a good idea to have multiple occurrences of the same keyword within a problem, because that makes counting & quality-checking more difficult, and is fiendishly difficult to track. Thanks for your understanding. If you have different opinions, please express them here, in German or English. (2022-08-01)
Yuri Bilokin: more economical c1=a1, then bPc7(-bNc7) 8/2p5/3b4/p1Rpp3/p3n3/K1Prq3/NB1pk3/3br3 h#4 0.2.1…
1...Sc1+ 2.dxc1=B Ka2 3.Kd2 Kb1 4.Qe2 Bxc1# (MM)
1...Bc1 2.dxc1=S Kb2 3.Rd2+ Kb1 4.Kd3 Sxc1# (MM) (2022-08-03)
Mario Richter: Hi Andrew, can you please give an example in what sense "multiple occurrences of the same keyword within a problem" do make "counting & quality-checking more difficult", and what you mean with "is fiendishly difficult to track"! (2022-08-04)
Gunter Jordan: Lieber Yuri, wie mir die Autoren mitteilten, kannten sie die von dir angegebene Stellung (und noch weitere Versionen), doch entschieden sie sich bewusst für ihre Diagrammposition, weil darin Weiß nicht nur drei Anfangszüge hat, wovon sogar zwei lösen, sondern eine größere Auswahl in einer viel freieren Stellung. (2023-01-15)
Gunter Jordan: ... entschuldigung, verzählt. Es sind 4 Anfangszüge bei Yuri. (2023-01-15)
comment
Keywords: Exchange of roles (L-S), Koshakin Theme, Model mate, Reciprocal moves by White, Schnoebelen Theme (l,s), under-promotion (l,s), Zilahi, x pieces move to one square, x pieces capture on one square, Square vacation, Checking key (1)
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 8/4n3/5b2/2p1Rpp1/2p3n1/2K1Prq1/2NB1pk1/5br1
Reprints: E1 The Problemist , p. 164, 07/2023
Input: Gunter Jordan, 2022-05-08
Last update: Gunter Jordan, 2023-11-27 more...
16 - P1402506
Reinhardt Fiebig
Mirko Degenkolbe
10042 Seven Chess Notes 198, p. 19, 07/2022
P1402506
(2+4) C+
h#6
1. e1=L a3 2. Lb4 axb4 3. h1=L b5 4. Lc6 bxc6 5. Kb8 c7+ 6. Ka8 c8=D#
play all play one stop play next play all
Lösung:
1.e1L! [e1D?] a3! [a4?]
2.Lb4 axb4
3.h1L! [h1D?] b5
4.Lc6 bxc6
5.Kb8! c7
6.Ka8 [Rückkehr] c8D# - Mustermatt
(MD1790)

Eile-mit-Weile.
Weiße Auswahl im ersten Zug.
Schwarze Auswahl im ersten und dritten Zug.
Schwarzer Wartezug mit Rückkehr.
Weißer Excelsior.
Zweifache schwarze Läufer-Unterverwandlung.
Mustermatt.
Miniatur.
Sechssteiner.
Weißes Minimal.
Kindergarten-Problem
Klaus Funk: identischer Vorgänger: Ulf Hammerström 1994, P1095198 (2023-01-24)
comment
Keywords: Echo, Excelsior white, under-promotion (ll), Model mate, Minimal (B), Miniature, under-promotion key, Promotions to bishops, Promotion (D), konsekutive Umwandlungen 3 (llD), Switchback (k)
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: k7/p7/8/8/8/8/P3p2p/2K5
Input: Felber, Volker, 2022-07-07
Last update: Rainer Staudte, 2022-11-07 more...
17 - P1404985
Nikolay Popkov
1145 Juschnouralskaja Panorama 12/09/2013
P1404985
(8+8) C+
h#2
3 Lösungen
1. Dc6 e8=S 2. Dc5 Sed6#
1. Sd5 Se4 2. f3 Sed6#
1. Sc6 Th5 2. Db4 Dxe6#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion (S)
Genre: h#
Computer test: popeye 4.87
FEN: 5KQ1/2R1P3/4rNp1/1Nq5/1nk2p1R/1n1r4/8/5B2
Input: Mario Richter, 2022-10-08
Last update: Arnold Beine, 2022-10-08 more...
18 - P1405078
Roman A. Doronin
1174 Juschnouralskaja Panorama 17/10/2013
P1405078
(5+1)
h#2
2 Lösungen
1. Ke5 d8=D 2. Kf5 Df6#
1. Ke5 d8=S 2. Kf5 Tg5#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2022-10-10)
comment
Keywords: under-promotion (S)
Genre: h#
FEN: 8/3P4/8/3N3K/3k4/8/3N4/6R1
Input: Mario Richter, 2022-10-10
Last update: Mario Richter, 2022-10-10 more...
19 - P1406823
Valery Barsukov
12578 feenschach 246 07-09/2021
P1406823
(2+10)
h#6
Zeroposition
a) wLh2->a1
b) sKd7->d4
a) 1. Ta2 Lxc3 2. Kc6 Kd2 3. Kb5 Kd3 4. Ka4 Kc4 5. Ka3 Kb5 6. Sb2 Lb4#
b) 1. Ke3 Le5 2. Lg5 Lxc3 3. Kf4 Kd2 4. c1=L+ Kd3 5. Tg2 La5 6. Tg4 Lxc7#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2e, Brute Force (2023-12-15)
comment
Keywords: Minimal (L), Zeroposition, Twin, under-promotion (l in b), Selfblock, Remote selfblock, Model mate, Blockfeldwechsel
Genre: h#
FEN: 3b4/2pk4/8/5p2/8/1pp2p2/1rp4B/2Kn4
Input: Gunter Jordan, 2022-12-25
Last update: Gunter Jordan, 2023-12-15 more...
20 - P1406840
Rolf Wiehagen
Achim Schöneberg
12734 feenschach 250, p. 1009, 10-12/2022
(nach Aleksandr Bakharev u. Rudolf Larin)
P1406840
(3+9)
h#6 vvv
0.1.1...
1. ... c2xd3 2. Kc2 d3xe4 3. Kd3 e4xf5 4. Ke4 f5xe6 5. Kf5 e6xd7 6. Ke6 d7xe8=S#
play all play one stop play next play all
Versuch 1:
1. - c4? 2.K2 c5? 3.K3 c6 4.K4 cxd7 5.Kd5?? 6.Ke6??
Versuch 2:
1. - c4? 2.K2 cxd5(!) 3.K3 dxe6(!) 4.K4 exd7 5.Kd5 Kg(Tempo) 6.Ke6 d8D+ 7.Ld7!
Versuch 3:
1. - c4? 2.K2 cxd5 3.K3 dxe6 4.K4 Kxe8(!) 5.Kd5 exd7?? 6.Ke6 d8D#

5-zügiger Exzelsior mit Dame-UW scheitert, während 6-zügiger Exzelsior mit Springer-UW löst.

4x (passiver) Kniest (genauer: 3x Annäherungs-Kniest und 1x Kniest).

Bakharev & Larin siehe P1074930.
Henrik Juel: C+ Popeye 4.61 also (2022-12-26)
comment
Keywords: Kniest Theme, Ideal mate, Bahnung, under-promotion in mating move, under-promotion (S), discovered checkmate, Batteriematt diagonal, Battery creation, Umnov, Capture key, Excelsior white
Genre: h#
Computer test: C+ Popeye 4.85
FEN: 2B1bK2/3p4/4p3/3prp2/4p3/3p4/2P5/1k6
Input: Achim Schöneberg, 2022-12-26
Last update: Gunter Jordan, 2023-04-07 more...
21 - P1407225
Vladimir Korolkov

Lettische SSR 1958
2. Preis
P1407225
(2+14) C+
h#4
1. e1=L Txh3 2. f1=T Txh2 3. Kf2 Txh1 4. g1=S Th2#
play all play one stop play next play all
correction by Aleksandr Maksimov (17.05.2022)
previously been – Remove g4 & Move d3 b3
siehe auch P0501210 P0516014 P0577817
http://problem64.beda.cz/silo/konkurs_sostavlenija_zadac_latvia_1958.pdf
Seite 18
Quelle Preisbericht ergänzen
Yuri Bilokin: more economical wKb1-a1, bBh1-b3, bRh2-h1, bPg4-h2, bPf3(-bRf3), -bPc3, -bPd3 8/8/8/8/5p1R/1b2bpnn/4pppp/K5kr (2+12) (2023-01-14)
comment
Keywords: Minimal (T), konsekutive Umwandlungen 3 (lts), under-promotion key, Selfblock, Model mate
Genre: h#
Computer test: C+ laut YACPDP
FEN: 8/8/8/8/5ppR/2ppbrnn/4pppr/1K4kb
Input: HBae, 2023-01-11
Last update: HBae, 2023-01-11 more...
22 - P1407283
Sergii I. Tkachenko
Andrey Frolkin
Leonid Lyubashevsky
H1530 Problemist Ukrainy 75 01-03/2023
P1407283
(8+10) C+
h#4
1. d1=T Kc3 2. b1=S+! Kc2 3. Lc3 Kxd1 4. Kd3 Lxb1#
play all play one stop play next play all
Yuri Bilokin: you can see 1...Kc3 2.b1=S+ Kc2 3.Bc3 Kd1 4.Kd3 Bxb1# (2023-01-16)
comment
Keywords: Discovered check, Antiphönix, Remote selfblock, konsekutive Umwandlungen 2 (ts), Schnoebelen Theme (ts), under-promotion (ts), under-promotion key
Genre: h#
FEN: 8/3p4/1p1P4/1P6/1PK1k3/1P2P3/Bp1p1Pp1/b4nrb
Input: Gunter Jordan, 2023-01-15
Last update: Gunter Jordan, 2023-01-15 more...
23 - P1407348
Andreas Thoma
14828 Springaren 158 6/2021
P1407348
(2+3) C+
h#6
1. a1=L Kg6 2. Ka2 Kf5 3. Lb2 Ke4 4. La3 Kd3 5. d1=T Kc2 6. Ta1 Ld5#
play all play one stop play next play all
Yuri Bilokin: possibly wBg2-a4 8/7K/8/8/B7/8/pk1p4/8 (2+3) h#6
1.a1=B Kg6 2.Ka2 Kf5 3.Bb2 Ke4 4.Ba3 Kd3 5.d1=R+ Kc2 6.Ra1 Bb3# (IM)

Place exchange (bB/bK)
Promotion (rb)
Ideal mate (2023-01-22)
Henrik Juel: This is no ideal mate, as b3 is guarded both by Kc2 and Ld5 (2023-01-22)
Gerald Ettl: Hallo Henrik, bezüglich des Idealmatts: in seiner Version steht der wL zum Schluss auf b3. (2023-01-22)
comment
Keywords: konsekutive Umwandlungen 2 (lt), Minimal (L), Schlüssel = Eckzug, Selfblock, under-promotion (tl), under-promotion key
Genre: h#
Computer test: Gustav 4.1 i
FEN: 8/7K/8/8/8/8/pk1p2B1/8
Input: Gunter Jordan, 2023-01-19
Last update: Gunter Jordan, 2023-01-19 more...
24 - P1407382
Christer Jonsson
H924 Problem-Forum 06/2018
1. Lob
PR Hans Gruber
P1407382
(5+11) C+
h#3
0.3.1...
1) 1. ... f7 2. Sxe3 f8=D 3. Sd5 Df1#
2) 1. ... fxg7 2. bxa6 gxh8=D 3. axb5 Dd4#
3) 1. ... fxe7 2. Kxb5 e8=S 3. Kxa6 Sc7#
play all play one stop play next play all
Der Preisbericht erschien in Gaudium 262, 07/2022.
Yuri Bilokin: more economical bBa7(-bRa7) 7n/bp2r1p1/Np3P2/pN5K/2k1p3/1p2P3/8/5n2 (5+11) (2023-01-24)
comment
Keywords: Epaulettenmatt (in 2), Model mate, Capture key (in 2+3), Selfblock (in 1+2), Promotion (D in 1+2), under-promotion (S in 3)
Genre: h#
FEN: 7n/rp2r1p1/Np3P2/pN5K/2k1p3/1p2P3/8/5n2
Reprints: Gaudium 262, p. 2, 15/07/2022
Input: Gunter Jordan, 2023-01-21
Last update: Gunter Jordan, 2023-01-21 more...
25 - P1407429
Dieter Müller
10 Shakhmatna Misl 01/1989
P1407429
(4+5)
h#2
b)+sBb7
a) 1. dxe1=T Tc7 2. Te5 Td8#
b) 1. dxc1=T Lg3 2. Tc3 Txa4#
play all play one stop play next play all
SCHRECKE: a)+b): C+, popeye 4.87 (2023-01-24)
comment
Keywords: under-promotion key (t,t), indirekte Entfesselung
Genre: h#
FEN: k6b/6q1/8/8/p2R4/8/1K1p4/2R1B3
Input: Rainer Staudte, 2023-01-24
Last update: Rainer Staudte, 2023-01-24 more...
26 - P1407471
Jorma Pitkänen
1783 Springaren 161, p. 51, 03/2022
P1407471
(4+8) C+
h#7
1. Sg4 Sg6 2. Se3 dxe3 3. d2 e4 4. d1=S e5 5. Se3 e6 6. Sf5 exf7 7. Sg7 f8=S#
play all play one stop play next play all
Veröffentlicht in der Rubrik "Smasaker och hugskott".
Yuri Bilokin: more economical –bPd5, bSf6-c7 6nN/2n2p1k/7p/8/8/p2p4/P2P4/K7 (4+7) h#7
1.Sd5 Sg6 2.Se3 dxe3 3.d2 e4 4.d1=S e5 5.Se3 e6 6.Sf5 exf7 7.Sg7 f8=S# (MM) (2023-02-02)
comment
Keywords: Entblockung, Excelsior white, konsekutive Umwandlungen 2 (sS), Model mate, Phoenix, Selfblock, Promotions to Knights, under-promotion (Ss)
Genre: h#
FEN: 6nN/5p1k/5n1p/3p4/8/p2p4/P2P4/K7
Input: Gunter Jordan, 2023-01-28
Last update: Gunter Jordan, 2023-01-28 more...
27 - P1407472
Carlos de la Fe Dahlin
15001 Springaren 161 03/2022
P1407472
(2+4)
h#6
2.1...
1) 1. Kb2 Kd7 2. e5 fxe5 3. Kc3 e6 4. Kd4 e7 5. Ke5 e8=D 6. Kf6 De7#
2) 1. g5 fxg5 2. f4 g6 3. f3 g7 4. f2 g8=D 5. f1=T Dg3 6. Tb1 Da3#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-01-28)
Yuri Bilokin: Compare P1361500 (2023-02-02)
comment
Keywords: Kindergarten Problem, Miniature, Minimal (B), Promotion (D), under-promotion (t in 2), konsekutive Umwandlungen 2 (Dt in 2), Selfblock (in 2), Corner mate (in 2), Model mate (in 2), Entblockung
Genre: h#
FEN: 8/4p3/4K1p1/5p2/5P2/8/8/k7
Input: Gunter Jordan, 2023-01-28
Last update: Gerd Wilts, 2023-01-29 more...
28 - P1407698
Jiri Jelinek
Bulletin 26/06/2021
4. Preis
Jorma Pitkänen-80 JT 2021
P1407698
(2+10) C+
h#8
1. c1=S Kb1 2. Sb3 axb3 3. Se4 b4 4. d2 b5 5. d1=S b6 6. Se3 b7 7. S3f5 b8=S 8. Sg5 Sd7#
play all play one stop play next play all
Turnier-Thema: h#8, one solution, with wS(s) + bS(s).
Henrik Juel: C+ Popeye 4.61 (2023-02-09)
comment
Keywords: Entblockung, Excelsior white, konsekutive Umwandlungen 3 (ssS), Liniensperrung, Model mate, Check Protection, Selfblock, Promotions to Knights, under-promotion (Sss), under-promotion key, Minimal (B)
Genre: h#
FEN: 8/4nqb1/4pkb1/8/8/p2p4/P1p2n2/K7
Reprints: 4 The Problemist 283 01/2022
Input: Gunter Jordan, 2023-02-09
Last update: Gunter Jordan, 2023-02-09 more...
29 - P1407699
Stephen J. G. Taylor
Bulletin 26/06/2021
5. Preis
Jorma Pitkänen-80 JT 2021
P1407699
(5+5) C+
h#8
1. h3 Sh6 2. Ke7 Kd1 3. Kf6 Sg4+ 4. Kg5 Sf2 5. exf2 Kd2 6. Kh4 Ke3 7. f1=S+ Kf4 8. Sg3 hxg3#
play all play one stop play next play all
Turnier-Thema: h#8, one solution, with wS(s) + bS(s).
Henrik Juel: C+ Popeye 4.61 (2023-02-09)
comment
Keywords: Antiphönix, Pawn mate, Entblockung, Remote selfblock, Model mate, Tempo Loss, under-promotion (s)
Genre: h#
FEN: 3k2N1/8/8/7p/7p/1p2p3/1P2P2P/2K5
Reprints: 5 The Problemist , p. 283, 01/2022
Input: Gunter Jordan, 2023-02-09
Last update: Gunter Jordan, 2023-02-09 more...
30 - P1407700
Vladislav Bunka
Bulletin 26/06/2021
8. Preis
Jorma Pitkänen-80 JT 2021
P1407700
(5+6) C+
h#8
1. Ke3 Kc1 2. Kd4 Kd1 3. e3 Ke1 4. e2 Kf2 5. e1=S Kg3 6. Sxc2 Kf4 7. Se1 Kxf5 8. Sd3 Sc2#
play all play one stop play next play all
Turnier-Thema: h#8, one solution, with wS(s) + bS(s).
Henrik Juel: C+ Popeye 4.61 (2023-02-09)
comment
Keywords: Entblockung, Model mate, Switchback (s), under-promotion (s)
Genre: h#
FEN: 8/8/8/2p2p2/1pP1p3/1Pp5/2P1k3/NK6
Reprints: 8 The Problemist , p. 306, 01/2022
Input: Gunter Jordan, 2023-02-09
Last update: Gunter Jordan, 2023-02-09 more...
31 - P1407701
Zoltan Labai
Bulletin 26/06/2021
9. Preis
Jorma Pitkänen-80 JT 2021
P1407701
(2+12) C+
h#8
1. f2 Ka3 2. f1=S Ka4 3. Sg3 hxg3 4. Lf5 g4 5. h2 gxf5 6. h1=D fxe6 7. Dh2 e7 8. Dd6 exd8=S#
play all play one stop play next play all
Turnier-Thema: h#8, one solution, with wS(s) + bS(s).
Henrik Juel: C+ Popeye 4.61 (2023-02-09)
comment
Keywords: Antiphönix, Entblockung, Excelsior white, konsekutive Umwandlungen 3 (sdS), Model mate, Phoenix, Rückkehr nach Umwandlung (b/d), Selfblock, Promotion (d), Promotions to Knights, under-promotion (Ss), under-promotion in mating move, Minimal (B)
Genre: h#
FEN: 3b4/2nn4/1rk1p3/2pp4/6bp/5p1p/K6P/8
Reprints: 9 The Problemist , p. 306, 01/2022
Input: Gunter Jordan, 2023-02-09
Last update: Gunter Jordan, 2023-02-09 more...
32 - P1408001
Uwe Karbowiak
51 Schach in Schleswig-Holstein 2016
Preis
P1408001
(7+13) C+
#10
1. Lg8+! Kh8 2. Lb3+ Kh7 3. Tc3 Txc3 4. Lg8+ Kh8 5. Ld5+ Kh7 6. Kxg3 f1=S+
7. Kh3 Sg3 8. Lg8+ Kh8 9. Sh4 ... 10. Sg6#
play all play one stop play next play all
more ...
comment
Keywords: Staggered preplans, under-promotion (sS), Checking key
Genre: h#
Computer test: SCHRECKE: Gustav 4.2c
FEN: 3n1R2/2r4k/5P1p/3B3p/3p1P2/3Rp1nK/2ppppN1/2b5
Input: Dieter Berlin, 2023-02-28
Last update: Dieter Berlin, 2023-02-28 more...
33 - P1408770
Marko Ylijoki
H4671 The Problemist 29-2, p. 63, 03/2023
P1408770
(3+12) C+
h#6
0.2.1...
1) 1. ... b8=D+ 2. Kg4+ Df4+ 3. Kh5 Dd2 4. Le3 fxe3 5. Kg4 Dd1 6. Kg3 Dg1#
2) 1. ... b8=T 2. b2+ Txb2 3. d2+ Kxc2 4. d1=S Kd3 5. Se3 Te2 6. Sf5 Te4#
play all play one stop play next play all
Yuri Bilokin: you can see 1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bf6 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Be7 Qxf3#
1.h2 b8=Q+ 2.Kg4+ Qf4+ 3.Kh3 Qe3 4.Bd8 Qxf3#
1.Bf6 b8=Q+ 2.Kg4 Qxb3 3.h2 Qd5 4.Kh3 Qxf3# (2024-02-29)
comment
Keywords: Checking key (in 1), Promotion key (in 1), under-promotion key (in 2), under-promotion (ts in 2), konsekutive Umwandlungen 2 (ts in 2), bi-coloured Bristol (in 1), Cross check (in 1), Discovered check (in 1), selfpinning (in 1), Unpinning (in 1), Switchback (k in 1), Model mate (in 1), Exchange of Promotions
Genre: h#
FEN: 5n1n/1P6/8/6b1/5k1p/pppp1p1p/2p2P2/2K5
Input: Gunter Jordan, 2023-04-10
Last update: Felber, Volker, 2023-10-15 more...
34 - P1408858

H1820 Probleemblad 3/22 07-09/2022
P1408858
(9+10) C+
h#5
0.1.1...
1. ... d4 2. gxh3 dxc5 3. hxg2 c6 4. gxf1=L c7 5. La6 c8=S#
play all play one stop play next play all
Yuri Bilokin: more economical wKe1-g1, wPg2(-wSg2), bPc5-c6, bPh4(-wPh4), -wPe3, -wPf4, -wPg3, -wTh3, -bPd6, -bPe4, -bPf5, -bPg4 nn6/kr6/2p5/8/7p/8/3P2P1/5NK1 (4+6) h#5 0.1.1... 1...d4 2.h3 d5 3.hxg2 dxc6 4.gxf1=B c7 5.Ba6 c8=S# (MM) (2023-04-19)
comment
Keywords: Excelsior white, konsekutive Umwandlungen 2 (lS), Model mate, Selfblock, under-promotion (Sl), under-promotion in mating move, under-promotion B/S
Genre: h#
FEN: nn6/kr6/3p4/2p2p1p/4pPpP/4P1PR/3P2N1/4KN2
Input: Gunter Jordan, 2023-04-14
Last update: Gunter Jordan, 2023-04-14 more...
35 - P1408895
Sjoerd Hoekstra
H1850 Probleemblad 1/23 01-03/2023
P1408895
(3+10) C+
h#6
0.1.1...
1. ... Th1 2. Tg1 Th2+ 3. g2 Th1 4. Sg3 Th2 5. Tf1 Th1 6. g1=S Th2#
play all play one stop play next play all
Yuri Bilokin: you can see h#5 1.Qe2 Rh1 2.Se3 Rh2 3.Kf1 Rxg2 4.f2 Rh2 5.Sg2 Rh1#
get rid of Exchange e1 e3 1K6/6r1/1n6/8/7p/4bppP/5krR/4qn2 (3+10) (2023-04-19)
comment
Keywords: under-promotion (s), Schlüssel = Eckzug, Switchback (T), Rücknahme Schlüsselzug, Selfblock, changed blocks, Interchange (t-s-b zyklisch)
Genre: h#
FEN: 1K6/6r1/1n6/8/7p/4qppP/5krR/4bn2
Input: Gunter Jordan, 2023-04-15
Last update: Gunter Jordan, 2023-07-24 more...
36 - P1408897
Marko Ylijoki
H1852 Probleemblad 1/23 01-03/2023
Onerva gewidmet
P1408897
(3+15) C+
h#6
0.2.1...
1) 1. ... d8=T+ 2. Kc4+ Td3 3. Lg8 Txb3 4. Sc7 Txe3 5. Dc2+ Kxc2 6. Sd5 Te4#
2) 1. ... d8=L 2. Lf5 Lf6 3. Lh3 Lxb2 4. Kd2 Lf6 5. Ke1 Kc1 6. Lf1 Lh4#
play all play one stop play next play all
Yuri Bilokin: you can see h#3 1.c4 d8=Q+ 2.Rd5 Qxa5 3.c3 Qxd5# (2023-04-19)
comment
Keywords: under-promotion key (t,l), under-promotion (t,l), Checking key (in 1), Cross check (in 1), Discovered check (in 1), Königsbatterie (in 1), selfpinning (in 1), Unpinning (in 1), Line opening (in 1), Selfblock, Switchback (L in 2), Model mate (in 2)
Genre: h#
FEN: 8/3P3b/n7/rrp5/qp3p2/pp1kpP2/1p2p3/bK6
Input: Gunter Jordan, 2023-04-15
Last update: Gunter Jordan, 2023-07-25 more...
37 - P1408910
Sjoerd Hoekstra
H1854 Probleemblad 1/23 01-03/2023
P1408910
(3+5) C+
h#6
1. Kd6 fxe3 2. f2 Kc3 3. f1=L Lf2 4. Lg2 Lh4 5. Lc6 e4 6. Kc5 Le7#
play all play one stop play next play all
more ...
comment
Keywords: Entblockung, Selfblock, Switchback (k), Rücknahme Schlüsselzug, Tempoverlustrückkehr, under-promotion (l)
Genre: h#
FEN: 8/8/1p6/1pk5/8/4pp2/2K2P2/6B1
Input: Gunter Jordan, 2023-04-16
Last update: MarkoY, 2023-08-13 more...
38 - P1408914
Joost Michielsen
H1855 Probleemblad 1/23 01-03/2023
P1408914
(2+7)
h#7
1. Lg3 Le3 2. g1=D Kg5 3. Df1 Kf5 4. Da6 Kxe4 5. h1=L+ Kd4 6. Lc6 Kc5 7. La4 Ld2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2e, Brute Force (2023-07-25)
more ...
comment
Keywords: Minimal (L), Promotion (d), under-promotion (l), konsekutive Umwandlungen 2 (dl), Selfblock, Liniensperrung, Check Protection (Voraus-)
Genre: h#
FEN: 7n/8/7K/k7/4pp1b/8/6pp/6B1
Input: Gunter Jordan, 2023-04-16
Last update: Gunter Jordan, 2023-07-25 more...
39 - P1409549
Eberhard Schulze
14492 Die Schwalbe 243, p. 539, 06/2010
2. Lob Informalturnier 2010
P1409549
(2+12) C+
h#8
0.1.
1. ... a7 2. Kb7 a8=L+ 3. Kc8 Lxd5 4. La7 Le6+ 5. Dd7 Lxg4 6. Lb8 Le2 7. Dd8 Lxb5 8. Ld7 La6#
play all play one stop play next play all
Vergleiche R. Fiebig am 15.12.09 in der Schwalbe
SCHRECKE: Fiebig: P1097130 (2023-05-12)
comment
Keywords: under-promotion, Minimal
Genre: h#
Computer test: Gustav 4.2
FEN: k7/2p5/Pb6/1ppp4/4p1p1/3q2pb/6p1/6K1
Input: Eberhard Schulze, 2023-05-11
Last update: Felber, Volker, 2023-06-21 more...
40 - P1409551
Eberhard Schulze
Die Schwalbe 15/08/2010
P1409551
(2+8) C+
h#8
0.1.
1. ... a7 2. Kb7 a8=S 3. Sb5 Sc7 4. Sa7 Sxe6 5. Ka8 Sxf4 6. Lc8 Sd5 7. Db8 Kg2 8. Lb7 Sxb6#
play all play one stop play next play all
Vergleiche R. Fiebig am 15.12.09 in der Schwalbe
SCHRECKE: Fiebig: P1097130 (2023-05-12)
comment
Keywords: under-promotion, Minimal
Genre: h#
Computer test: Gustav 4.2
FEN: k7/2n5/Pb2p3/8/5p2/5nqb/8/7K
Input: Eberhard Schulze, 2023-05-11
Last update: Eberhard Schulze, 2023-05-11 more...
41 - P1409576
Eberhard Schulze
15048 Die Schwalbe 252, p. 354, 12/2011
P1409576
(6+12) C+
h#3
b) +sTd8
a) 1. Dxa8 bxa3 2. Sc5 a4 3. Db7 b5#
b) 1. Dxe6 gxf6 2. Sb5 fxe7 3. Dd6 exd8=S#
play all play one stop play next play all
more ...
comment
Keywords: Unpinning, Twin, Capture key, under-promotion in mating move (in b), under-promotion (S in b)
Genre: h#
Computer test: Gustav 4.2
FEN: B5q1/1nppp3/1bknRp2/3p2P1/1P2p3/p7/1P6/5K2
Input: Eberhard Schulze, 2023-05-12
Last update: Felber, Volker, 2023-06-23 more...
42 - P1409605
Reinhardt Fiebig
Eberhard Schulze
Problem-Forum 15/03/2014
P1409605
(3+8) C+
h#5
0.1.1...
b) sSg7->h4
a) 1. ... a8=S 2. Tf2 Sb6 3. Tf7 exf7+ 4. Kd8 f8=S 5. Se8 Se6#
b) 1. ... a8=L 2. Sg6 Le4 3. Sf8 Lh7 4. Ta8 Lg8 5. Td8 Lf7#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion (SS,L), under-promotion key, Promotions to Knights (in a), konsekutive Umwandlungen 2 (SS in a), Twin, Model mate, Selfblock
Genre: h#
Computer test: Gustav 4.2
FEN: 4k3/P3p1n1/4P3/8/3p4/6pp/r5p1/6K1
Input: Eberhard Schulze, 2023-05-14
Last update: Gunter Jordan, 2023-06-28 more...
43 - P1409714
Eberhard Schulze
feenschach 15/04/2021
Dietmar Jahn
P1409714
(5+1)
h#3
Zwilling
a) Diagramm
b) wKd5
a) 1. Kb2 c7 2. Kb3 c8=L 3. Kc4 Le6#
b) 1. Kxa4 Kc5 2. Ka5 Lb6+ 3. Ka6 Sb4#
play all play one stop play next play all
Yuri Bilokin: you can see a) 1...c7 2.Kb3 c8=B 3.Kc4 Be6# (2023-05-17)
more ...
comment
Keywords: under-promotion, Miniature
Genre: h#
Computer test: Gustav 4.2
FEN: 8/B7/2P5/8/P7/k7/N3K3/8
Input: Eberhard Schulze, 2023-05-16
Last update: Felber, Volker, 2023-07-01 more...
44 - P1410121
Reinhardt Fiebig
Mirko Degenkolbe
19848 Schach 06/2023
P1410121
(3+2)
h#3
0.1.1...
b) wBa7<->wKh7
a) 1. ... a8=T 2. Lb6 Ta2 3. Lg1 Lc6#

b) 1. ... h8=L 2. Lc7 Ld4 3. Lh2 Lc6#
play all play one stop play next play all
19.848 (Fiebig/Degenkolbe) a) 1… a8T 2.Lb6 Ta2 3.Lg1 Lc6 matt; b) 1… h8L 2.Lc7 Ld4 3.Lh2 Lc6 matt (3 P.). „Weiße Unterverwandlungen im 2,5-Züge-Tanagra“ (Autoren). „Die Zwillingsbildung ist ein Kunstgriff; man könnte auch Taschenspielertrick sagen. Ich habe es mit einem Schmunzeln genommen. Netter Spaß“ (HH). „Netter 5-Steiner mit UW-Wechsel und gleichem Mattzug“ (BK).
(MD1912)
SCHRECKE: a)+b): C+, popeye 4.87 (2023-06-04)
comment
Keywords: under-promotion key (T,L), Minimal, Miniature
Genre: h#
FEN: 3bB3/P6K/8/8/8/8/8/7k
Input: Rainer Staudte, 2023-06-04
Last update: Felber, Volker, 2023-11-04 more...
45 - P1410305
Claus Grupen
Andreas Thoma
2890 Landeszeitung für die Lüneburger Heide 10/06/2023
P1410305
(2+3)
h#5
b) +sSh2
a) 1. Kc3 Kf3 2. Kd2 Ke4 3. Ke1 Kd3 4. g1=S Kc2 5. Se2 Sd3#
b) 1. Sg3 Ke1 2. Ke3 Kd1 3. Kf2 Kd2 4. Kg1 Ke1 5. Sh1 Se2#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-06-12)
comment
Keywords: Miniature (in b), Minimal (S), Twin, under-promotion (s in a), Selfblock, Ideal mate, Round Trip (K-3 in b), Klasinc theme (K-k in b)
Genre: h#
FEN: 8/8/8/8/3k4/8/5Kp1/2N2n2
Input: Gunter Jordan, 2023-06-12
Last update: Gunter Jordan, 2023-08-10 more...
46 - P1410382
Marko Ylijoki
Mirko Degenkolbe
19383 Die Schwalbe 321, p. 147, 06/2023
P1410382
(2+15)
h#7
0.1.1...
b) sBd5->c4
a) 1. ... dxe8=L 2. Ke7 Lxh5 3. Kf6 Le2 4. Kg6 Lxd3+ 5. Kh5 Lb5 6. Lc4 Kxc2 7. Dg4 Le8#
b) 1. ... dxe8=T+ 2. Kd7 Td8+ 3. Kc6 Txd3 4. Kc5 Td8 5. Dd7 Ke2 6. Kd4 Kf3 7. Kd3 Txd7#
play all play one stop play next play all
19383 (Marko Ylijoki &Mirko Degenkolbe). a) 1.– d:e8=L 2.Ke7 L:h5 3.Kf6 Le2 4.Kg6 L:d3+ 5.Kh5 Lb5 6.Lc4 K:c2 7.Dg4 Le8# (Mustermatt) b) 1.– d:e8=T+ 2.Kd7 Td8+ 3.Kc6 T:d3 4.Kc5 Td8 5.Dd7 Ke2 6.Kd4 Kf3 7.Kd3 T:d7#. „Rundlauf, Kniest, Koschakin-Thema und Mustermatt in a). Kniest und Maslar mit dem umgewandelten Turm, Bauer(Turm)-Rundlauf von d7 nach d7, Klasinc (weißer Bauer / schwarzer König) in b).“ (Autoren) BK war „verblüfft, dass es keine Nebenlösung mit der weißen Dame“ gab. JB entdeckte das folgende Detail: „In a): Der erwandelte weiße Läufer räumt das Mattfeld für den schwarzen König, die schwarze Dame blockt. In b): Der erwandelte weiße Turm räumt das Mattfeld für den schwarzen König, die schwarze Dame ist Schlagopfer.“ Insgesamt gibt es hier „eine Fülle von strategischen Themen, wie z. B. schwarze Opfer, konsekutiver Umnow, Klasinc, Kniest, Koschakin-Thema, Maslar, Platzwechsel von weißem Turm und schwarzem König, Umwandlung in Turm und Läufer bei Weiß, Rückkehr des weißen Turms, ein Mustermatt. Der hohe Aufwand an schwarzen Steinen hat sich hier gelohnt. Schwierig und schön.“ (KHS) Dazu sehen wir noch einen „Rundlauf des weißen Läufers in a).“ (TZ) „Ein großartiger Hit in Sachen Hilfsmattmehrzüger.“ (JA)
(MD1918)

Autoren:
Kniest, Rundlauf und Mustermatt in a).
Kniest und Maslar in b).
Henrik Juel: C+ Popeye 4.61 (2023-12-30)
comment
Keywords: Minimal (B), under-promotion key, under-promotion (L,T), Checking key (in b), Round Trip (L-6,T/B-5), Rückkehr nach Umwandlung (B/T in b), Kniest Theme, Maslar theme (in b), Koshakin Theme (in a), Model mate (in a), Klasinc theme (B/T-k), Interchange (B/T-k in b), Twin
Genre: h#
FEN: 3kn3/2pP4/4q2b/3p2pp/7p/1bpp4/n1rp4/3K4
Input: Felber, Volker, 2023-06-17
Last update: Gunter Jordan, 2024-01-12 more...
47 - P1411115
Miguel Ambrona
MatPlus.net Forum 2021
P1411115
(2+4) C+
h#3
1. Db8! Kf7 2. Lh8 e7 3. Df8+ exf8=S#
play all play one stop play next play all
Henrik Juel: 1. Db8 Kf7 2. Lh8 e7 3. Df8+ exf8=S# (2023-07-24)
Henrik Juel: Congratulations, Miguel
This the first correct entry by you, I believe
It still needs author and source, though (and possibly a twin) (2023-07-24)
A.Buchanan: Hi Henrik, we are working to automate the process of uploading these problems. It will take a day or so, after that should be smooth. (2023-07-25)
Miguel Ambrona: Thanks Henrik!
This is a problem I composed a few years ago, before I know about the notion of twin. I may work on it at some point.
:) (2024-01-14)
more ...
comment
Keywords: Minimal (B), Miniature, Selfblock, under-promotion in mating move (S)
Genre: h#
Computer test: Juel: Popeye 4.61
FEN: 8/4K2k/4P2p/8/3b1q2/8/8/8
Reprints: MatPlus.net Forum 2021
Input: Miguel Ambrona, 2023-07-24
Last update: Dieter Berlin, 2024-01-14 more...
48 - P1411265
Vasily Malyuk
harmonie 2009
P1411265
(8+7)
h#21
1. Le1 c5 2. Lf2 c4 3. Lf2xg1 Kxg1 4. Kg7 Kh1 5. Kf6 Kg1 6. Ke5 Kh1 7. Kd4 Kg1 8. Kxc4 Kh1 9. Kxc5 Kg1 10. Kd6 Kh1 11. c5 Kg1 12. c4 Kh1 13. c3 Kg1 14. c2 Kh1 15. c1=S Kg1 16. Sxe2 Kh1 17. Sf4 Lc4 18. Sh5 gxh5 19. Kd7 h6 20. Ke8 h7 21. Ke8-f8 h8=D#
play all play one stop play next play all
PAS-Läufer-Hilfsmatt ab dem 4. Zug.

Die letzten 14 Züge sind identisch mit Kardos, P0502947.
Außerdem Selbstplagiat, V. M. veröffentlichte diese Aufgabe bereits 2008 in Schachmatnaja Komposizija (ganz leicht modifiziert, siehe P1080117).
Die Angabe "harmonie 2009" ist unsicher, denn sie wurde dem Hopper Magazine 03 (Zweitquelle) entnommen.
more ...
comment
Keywords: Promotion (D), under-promotion (s), Entblockung, konsekutive Umwandlungen 2 (sD), Switchback (K), Antiphönix
Genre: h#
Computer test: Gustav 4.0 i
FEN: 7k/4p3/2p5/6p1/2P3P1/2P1p1p1/3bP1P1/5BRK
Reprints: OP024 The Hopper Magazine I03 12/2022
Input: Miguel Ambrona, 2023-07-26
Last update: A.Buchanan, 2023-07-27 more...
49 - P1411384
Marko Ylijoki
2439 Gaudium 274 31/01/2023
P1411384
(3+12) C+
h#5
0.3.1...
1) 1. ... d8=D+ 2. Ke6+ Df6+ 3. Kd7 Dd4 4. De5 fxe5 5. Ke6 Dxd6#
2) 1. ... d8=S 2. Dg2 Sc6 3. Te8 Sxb4 4. Te6 Ka2 5. Dg6 Sd5#
3) 1. ... d8=T 2. Tg5 Tg8 3. Kg6+ Txg7+ 4. Kh6 Tg8 5. Lh5 fxg5#
play all play one stop play next play all
Yuri Bilokin: you can see 1.c1=B d8=Q+ 2.Kg6+ Kb1 3.Rg5 Qxg5#
1.c1=B d8=Q+ 2.Kg6+ Kb1 3.Rh6 Qg5#
1.c1=B Kb1 2.Rh1 d8=Q+ 3.Kg6 Qg5#
1.c1=B Kb1 2.Rh2 d8=Q+ 3.Kg6 Qg5# (2023-08-04)
comment
Keywords: Antiphönix (in 1), Pawn mate (in 3), Model mate (in 2+3), Promotion (D in 1), under-promotion (-,S,T), under-promotion key (in 2+3)
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: r7/3P1bbp/3p1k2/3q1p1r/1n3P2/p7/2p5/K7
Input: Gunter Jordan, 2023-07-29
Last update: Gunter Jordan, 2023-07-29 more...
50 - P1411657
Eberhard Schulze
5013 idee & form 159, p. 5390, 07/2023
P1411657
(2+5) C+
h#6
0.1.1...
1. ... Sxc3 2. e2 Sd5 3. Lb4 Sxe7 4. e1=T Sf5 5. Lf8 Kc8 6. Te7 Sd6#
play all play one stop play next play all
Anirudh: Should be h#5.5 for a unique solution -
1...Sxc3 2.e2 Sd5 3.Bb4 Sxe7 4.e1=R Sf5 5.Bf8 Kc8 6.Re7 Sd6# (2023-08-08)
Joost de Heer: That's what it says already: h#6 0.1. is an old way of writing h#5.5 (2023-08-08)
A.Buchanan: Guess the pawn grabbing is thematic: -sBc3, wSb1/d1 is still unique (2023-08-08)
comment
Keywords: Minimal (S), Miniature, Line opening, Switchback (S), under-promotion (t), Selfblock, Ideal mate, Line closing, changed blocks, Square vacation
Genre: h#
Computer test: Gustav 4.2
FEN: 4k3/1K2p3/8/3N4/8/2p1p3/8/4b3
Input: Eberhard Schulze, 2023-08-08
Last update: Felber, Volker, 2023-12-13 more...
51 - P1411858
Ljubomir Ugren
PS3894 The Problemist Supplement 182, p. 271, 01/2023
P1411858
(2+13)
h#6
b) sLa1->a7
a) 1. Sb3 Kg1 2. Tb1 Kh1 3. Dc1 Kg1 4. e1=S Lxd3+ 5. Kd1 Kf1 6. Sc2 Le2#
b) 1. Lg1 Lxe2 2. Kc3 Lxg4 3. Kd4 Lf3 4. Ke3 Lxa8 5. Ke2 Kxg2 6. Le3 Lf3#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.2e, Brute Force (2023-08-18)
comment
Keywords: Minimal (L), under-promotion (s in a), Selfblock, black Bristol (in a), Twin, Switchback (K,L), Line opening (in a)
Genre: h#
FEN: b7/8/8/8/6p1/3p2p1/p1kpp1n1/b1nrqB1K
Input: Gunter Jordan, 2023-08-18
Last update: Felber, Volker, 2023-09-30 more...
52 - P1414047
Robert Sharp
1200 mpk-Blätter 156 12/2023
P1414047
(9+6) C+
h#6
1. a1=T e4 2. Ta2 e5 3. Ta1 exf6 4. Ta2 f7 5. Ta1 f8=D 6. Ta2 Dxf5#
play all play one stop play next play all
Yuri Bilokin: you can see 1...e4 2.fxe4 Bc1 3.Ka1 Kc2 4.e3 Bb2#
1...e4 2.fxe4 Bc1 3.Ka1 Kc2 4.f5 Bb2#
1...Bc1 2.Ka1 e4 3.fxe4 Kc2 4.e3 Bb2#
1...Bc1 2.Ka1 e4 3.fxe4 Kc2 4.f5 Bb2# (2023-12-20)
comment
Keywords: Pendulum (b/t), under-promotion (t), Promotion (D), konsekutive Umwandlungen 2 (tD), under-promotion key, Rückkehr nach Umwandlung
Genre: h#
Computer test: C+ Popeye 4.89
FEN: 8/8/5p2/p1p2p2/P1P2P2/PKP1P3/pB2P3/1k6
Input: Achim Schöneberg, 2023-12-12
Last update: Gunter Jordan, 2023-12-13 more...
53 - P1414201
Rolf Wiehagen
1478 Problemas 44, p. 1437, 10/2023
P1414201
(4+5) C+
h#3*
1. ... g3#
1. hxg2+ Ke1 (K~?) 2. g1=S Sg3 3. Sh3 Sf5#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2023-12-27)
comment
Keywords: changed blocks, Fata Morgana (Typ Weber), Model mate, Rückkehr nach Umwandlung, Checking key, Capture key, Selfblock, under-promotion (s)
Genre: h#
FEN: 8/8/8/7p/5Ppk/7p/6Pp/5K1N
Input: Gunter Jordan, 2023-12-27
Last update: Gunter Jordan, 2023-12-27 more...
54 - 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...
55 - 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...
56 - P1414452
Claus Grupen
2500 Gaudium 283 31/05/2023
P1414452
(2+7) C+
h#5
1. Ke5 Kd2 2. Ld5 Kd3 3. c1=S+ Ke3 4. Sd3 exd3 5. e6 d4#
play all play one stop play next play all
Yuri Bilokin: Compare P0500739, P1099591 (2024-01-30)
comment
Keywords: Antiphönix, Pawn mate, Ideal mate, Minimal (B), Selfblock, Tempo Loss, under-promotion (s)
Genre: h#
Computer test: Popeye Windows-64Bit v4.85 (4096 KB)
FEN: 6b1/4p3/3b1p2/3k1r2/8/8/2p1P3/2K5
Input: Gunter Jordan, 2024-01-12
Last update: Gunter Jordan, 2024-01-13 more...
57 - P1414550
Yevgenii Gavryliv
Die Schwalbe 2023
P1414550
(4+8)
h#2
b) wLa6->a7
a) 1. Td8 exd8=T 2. Tb6 Tc8#
b) 1. Sf8 exf8=S 2. Tb7 Se6#
play all play one stop play next play all
more ...
comment
Keywords: Blockfeldwechsel, Phoenix, Selfblock, under-promotion (T,S), Twin
Genre: h#
FEN: 1rr1n1K1/2kbP2R/B1qp2n1/8/8/8/8/8
Input: Gunter Jordan, 2024-01-17
Last update: Ralf Kr?tschmer, 2024-01-18 more...
58 - 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...
59 - P1415229
Claus Grupen
Andreas Thoma
2015/60 Schach in Schleswig-Holstein 11/2015
2. ehrende Erwähnung
P1415229
(2+5) C+
h#6
b) sLc2
a) 1. c1=L h4 2. Tg2 h5 3. Tg6 h6 4. Lg5 h7 5. Kg7 Kb2 6. Kh6 h8=D#
b) 1. Lg6 h4 2. Tf2 h5 3. Tf7 Kb2 4. a1=T hxg6 5. Th1 gxf7 6. Th7 f8=D#
play all play one stop play next play all
Yuri Bilokin: Illegal position: no legal last move for White (BTM). (2024-02-22)
comment
Keywords: corner to corner (t in b), Corner mate (in b), Entblockung, Excelsior white, Remote selfblock (2-fach in a), Forsberg Twins, konsekutive Umwandlungen 2 (lD,tD), Line opening, Minimal (B), Model mate, Selfblock (in b), Tempo Loss (in a), Tschumakow Theme, Promotion (D), Promotion in the mating move, under-promotion (l,t), under-promotion key (in a), Miniature
Genre: h#
Computer test: Gustav 4.1 a
FEN: 7k/8/8/8/8/1p6/prp4P/K7
Input: Gunter Jordan, 2024-02-21
Last update: Gunter Jordan, 2024-02-21 more...
60 - P1415508
Dmitro Grinchenko
Mykola Parkhomenko
10922 Seven Chess Notes 218, p. 18, 03/2024
P1415508
(3+4) C+
h#2
2.1...
1) 1. e1=L Le2 2. e4 Lf1#
2) 1. e1=S Lxe5 2. Sg2 Lg4#
play all play one stop play next play all
Yuri Bilokin: you can see 1...Bxe2 2.e4 Bf1# (2024-03-05)
comment
Keywords: Miniature, under-promotion key, under-promotion (l,s)
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 1B6/8/8/4p2K/8/4p2k/4p3/3B4
Input: Felber, Volker, 2024-03-04
Last update: Gunter Jordan, 2024-03-06 more...
61 - P1415772
Valentin Lukyanov
Leninskaja Smena 06/03/1966
Korrektur von Mykola Tschernjawskyj
1. Lob
P1415772
(4+8) C+
h#2
b) sBc5->c3
a) 1. f1=L Ld2 2. Lh3 Sf3#
b) 1. f1=S Ld6 2. Sh2 Sf5#
play all play one stop play next play all
Korrektur zu P0544172
more ...
comment
Keywords: Model mate, under-promotion key (l,s)
Genre: h#
Computer test: Henrik Juel: C+ Popeye 4.61 (2024-03-13)
FEN: 8/5B1r/8/2p3pr/3knB1N/3p4/5p2/7K
Input: Felber, Volker, 2024-03-13
Last update: Felber, Volker, 2024-03-14 more...
62 - 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...
63 - P1416143
Valery Barsukov
7525 Seven Chess Notes 148 05/2018
P1416143
(3+2) C+
h#6
1. e5-e4 Kh7-g6 2. e4-e3 Kg6-f5 3. e3-e2 Kf5-e4 4. e2-e1=T+ Ke4-d3 5. Te1-g1 Sa5-c4 6. Kg2-f1 Sc4-e3#
play all play one stop play next play all
Yuri Bilokin: more meaningful 1.113.2 Viktoras Paliulionis SuperProblem 31/01/2018
http://superproblem.ru/archive/Ideal0/7/Ikvp-1-113.html

k7/1p6/8/8/8/N7/5B2/7K h#7 (3+2)
1.b5 Kg2 2.b4 Kf3 3.b3 Ke4 4.b2 Kd5 5.b1=R Kc6 6.Rb7 Sb5 7.Rb8 Sc7# (IM)

Excelsior (black)
Hesitation (bR)
Linear cycle (bP, captureless, 6)
Promotion (r)
Tempo move (bR, zugzwang avoidance)
Ideal mate (2024-04-06)
comment
Keywords: Miniature, Minimal (b), under-promotion (t), Selfblock, Ideal mate
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: 8/7K/8/N3p3/7B/8/6k1/8
Input: Felber, Volker, 2024-04-02
Last update: Gunter Jordan, 2024-04-02 more...
64 - P1416155
Claus Grupen
1928 Osnabrücker Tageblatt 01/04/2016
P1416155
(2+2) C+
h#5
1. Kd3 Ka2 2. Kc2 Ka3 3. Kb1 Sd4 4. Ka1 Kb3 5. b1=S Sc2#
play all play one stop play next play all
Yuri Bilokin: anticipated P0542744 (2024-04-06)
comment
Keywords: Corner mate, Entblockung, Ideal mate, Minimal (S/b), Selfblock, under-promotion (s)
Genre: h#
Computer test: Gustav 4.1 a
FEN: 8/8/8/8/4k3/1N6/1p6/1K6
Input: Gunter Jordan, 2024-04-03
Last update: Gunter Jordan, 2024-04-03 more...
65 - P1416308
Marko Ylijoki
723 Pat a Mat 125 09/2023
P1416308
(2+11) C+
h#7
0.2.1...
1) 1. ... b8=L+ 2. Kb6 Lxc7+ 3. Kc5 Lxg3 4. e2 Lh4 5. Df2+ Kxf2 6. Kd4 Kf3 7. Sc5 Lf6#
2) 1. ... b8=T 2. Sc5 Tg8 3. Sb7 Txg3 4. Ka8 Kh2 5. g1=T Tg7 6. Ta1 Txc7 7. Ta7 Tc8#
play all play one stop play next play all
Yuri Bilokin: you can see
1.Kb6 b8=Q+ 2.Kc5 Qf8+ 3.Kd4 Qxf3 4.d2 Qxg2 5.Kd3 Qh3 6.Ke2 Qf1#
1.Kb6 b8=Q+ 2.Kc5 Qxc7+ 3.Kd4 Qxg3 4.Qf4 Qh2 5.Ke4 Qxh1 6.Kf3 Qxg2#
1.Kb6 b8=Q+ 2.Kc5 Qxc7+ 3.Kd4 Qxg3 4.Qf4 Qh3 5.Ke4 Qxh1 6.Kf3 Qxg2#
1.Kb6 b8=Q+ 2.Kc5 Qxc7+ 3.Kd4 Qxg3 4.Qf4 Qh4 5.Ke4 Qxh1 6.Kf3 Qxg2# (2024-04-14)
comment
Keywords: Corner mate (in 2), Entblockung (in 2), konsekutive Umwandlungen 2 (Tt in 2), Minimal (B), Model mate, Checking key (in 1), Selfblock, under-promotion (L,Tt), under-promotion key
Genre: h#
FEN: 8/kPn5/n7/3p4/2p5/3ppqp1/6p1/6Kb
Input: Gunter Jordan, 2024-04-12
Last update: Gunter Jordan, 2024-04-12 more...
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