Die Schwalbe

120 problem(s) found in 3764 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT K='Konstruktionsrekord' AND K='konsekutive Umwandlungen 2'] [download as LaTeX]

1 - P0003335
Tomislav Petrovic
(XXI) Problem 37-40 09/1956
P0003335
(5+9) cooked
h#9
1. dxc3ep dxc3+ 2. Ka5 c4 3. d2 c5 4. d1=L c6 5. Lg4 hxg4 6. Kb6 g5 7. Ka7 g6 8. Kb8 g7 9. Kc8 g8=D/T#
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Cook: 1. b2 c5 2. b1=S c6 3. Sc3 dxc3+ 4. Ka5 cxd4 5. Kb6 d5 6. Ka7 d6 7. Kb8 dxc7+ 8. Ka7 c8=D 9. a5 Db7#
paul: See P0003212 as version. (2011-08-06)
Anton Baumann: C+?? Die Aufgabe ist eindeutig inkorrekt! (2021-01-27)
James Malcom: Fixed. (2021-01-27)
comment
Keywords: En passant as key, Promotion (D), konsekutive Umwandlungen 2 (L, D/T), En passant, Kindergarten Problem
Genre: h#, Retro
FEN: 8/2p5/p7/8/1kPp3p/1p1p2pP/3P2Pp/7K
Input: Gerd Wilts, 1995-06-03
Last update: James Malcom, 2021-01-27 more...
2 - P0559171
Boris Ostruh
(46) Problem 08/1974
ehrende Erwähnung
57. Thematurnier
P0559171
(12+10)
h#23
0.1...
1. ... Txh6+ 2. Dxh6+ Dxh6 3. Kxh6 c5 4. Lxg1 Kxg1 5. Kg7 Kh1 6. Kf8 Kg1 7. Ke8 Kh1 8. Kd8 Kg1 9. Kc8 Kh1 10. Kb7 Kg1 11. Ka6 Kh1 12. Kb5 Kg1 13. Kxc5 Kh1 14. Kd4 Kg1 15. c5 Kh1 16. c4 Kg1 17. c3 Kh1 18. c2 Kg1 19. c1=D Kh1 20. Dc6 Kg1 21. Dd7 exd7 22. Kxe4 d8=D 23. Kf4 Dd4#
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PAS-Läufer-Hilfsmatt (ab dem 5. Zug)
Ladislav Packa: Illegal position of Rh6. (2016-11-22)
Henrik Juel: Position seems legal to me
Last move either Kh5-g6+ or h4xg3+ (2016-11-22)
Anton Baumann: C+ Gustav 4.1d (2021-03-27)
comment
Keywords: Promotion (Dd), Round Trip (b), Rückkehr nach Umwandlung, Switchback (K), Antiphönix, konsekutive Umwandlungen 2 (dD), Königswanderung
Genre: h#
FEN: 5q1Q/2p1p2R/2p1P1kr/4P1p1/2P1P1P1/4p1p1/4PbP1/5BRK
Reprints: Pat a Mat 98 2016
Input: Hans-Jürgen Schäfer, 1999-01-01
Last update: Gunter Jordan, 2021-03-28 more...
3 - P0559299
Karl Fabel
2279 Die Schwalbe 08-09/1966
P0559299
(8+9)
h#14
1. Kc7 Lh3 2. Kd6 Lg4 3. Ke5 d4+ 4. Kxd4 Lh3 5. Kc3 Lg4 6. d4 Lh3 7. d3 Lg4 8. d2 Lh3 9. d1=L Lg4 10. Lb3 Lh3 11. Le6 fxe6 12. Kxb4 e7 13. Ka5 e8=D 14. Ka6 Da8#
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vgl. Karl Fabel 84v The Problemist 07/1966
SCHRECKE: vergleiche: P0503740 (2021-03-23)
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comment
Keywords: Promotion (D), under-promotion (l), konsekutive Umwandlungen 2 (lD), Entblockung, Antiphönix, Model mate
Genre: h#
Computer test: Anton Baumann: C+ Gustav 4.1d (2021-03-23)
FEN: 1k6/8/1p3p1p/1p1p1P1P/1P3pB1/3P1Pp1/6Pp/7K
Input: Hans-Jürgen Schäfer, 1999-01-01
Last update: Gunter Jordan, 2023-07-16 more...
4 - P1002806
Gabor Cseh
H2465 The Problemist 03/2001
1. Preis
P1002806
(8+12)
h#5
2.1...
1) 1. gxh4 a8=L 2. h3 Lxg2 3. Dxg2 f8=D 4. Dg7 Dh8 5. Dxb2 Dxb2#
2) 1. gxf4 f8=D 2. f3 Db4 3. f2 Dxb3 4. Kxb3 a8=L 5. Ka2 Ld5#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-06-09)
Teppo Mänttä: reprint: Tehtäväniekka n:o 3, page 142, 14/09/2016. Published in Kari Valtonen's article about Hungarian themes and composers. (2021-04-28)
comment
Keywords: Capture key, Promotion (D), under-promotion (L), konsekutive Umwandlungen 2 (LD, DL), Square vacation, Opferbahnung (in 1), Model mate (in 2)
Genre: h#
FEN: 8/P4P2/4P3/1P4p1/5P1P/1p1p4/kPp3pp/rnK2nrq
Reprints: 5) idee & form 154, p. 5223, 04/2022
Input: hpr, 2002-03-02
Last update: Gunter Jordan, 2023-01-23 more...
5 - P1016613
Anatoli N. Kejv
3630 Suomen Shakki 06-07/2002
P1016613
(5+2) C+
s#6
b) wBg7 nach h7
a) 1. b8=L! Kh3+ 2. Df3+ Kh4 3. Dg2 Kh5 4. g8=S Kh4 5. Sh6 Kh5 6. Sf5 Lxg2#
b) 1. b8=L! Kh3+ 2. Df3+ Kh4 3. h8=D+ Kg5 4. Dg2+ Kf5 5. Df8+ Ke6 6. Dc6+ Lxc6#
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a) (Fast-Spiegelbild zu Grin, 1991) { VG}: Reimann, 1904.
SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force
Reimann: P1016197 (2021-02-28)
comment
Keywords: anticipated, Minimal, Miniature, Promotion, konsekutive Umwandlungen 2 (LS, LD)
Genre: s#
FEN: K7/BP4P1/8/8/5Q2/8/6k1/7b
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-05-01
Last update: Marcin Banaszek, 2021-03-07 more...
6 - P1081585
Jesper Jespersen
Chess Player's Chronicle 1884
Preis (Bestes Selbstmatt)
P1081585
(8+3) cooked
s#7
1. g8=T Lxb7 2. Tb8 a5 3. f8=L a4 4. Th7 a3 5. Lg1+ Kxb8 6. Ld6+ Ka8 7. Ldh2 Lxc6#
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Cook: Duale nach 1. ...a5 2. Tb8 a4 3. f8=L a3 4. Tc7,Th7
SBD: Ohne Anweisung auf Dualen nachgedruckt in "The Golden Book of Chess Composition 1850-1913," Yakov Vladimirov und Andrey Selivanov. (2013-06-23)
athulin: Published: Chess Player's Chronicle, v. 8, i. 214 (1884-08-06), p. 64, prb. 1192. (2022-10-31)
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comment
Keywords: konsekutive Umwandlungen 2
Genre: s#
FEN: b7/kB2RPP1/p1Q5/8/8/8/P6B/7K
Reprints: 5720 Deutsche Schachzeitung 01/1885
Input: HBae, 2009-02-06
Last update: Frank Müller, 2011-11-03 more...
7 - P1088930
Ivan Soroka
254 Uralskije jubiljary 1997
Alexej Iwunin 50 JT
Lob
P1088930
(11+3) C+
s#6
1. Lf6 Lxf6 2. h8=D+ Ke7 3. Df8+ Ke6 4. d8=S+ Lxd8 5. Df5+ Ke7 6. La4 c6#
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SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-05)
comment
Keywords: interchange in mating position (kl), konsekutive Umwandlungen 2
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 3k4/2pPb1PP/P1B5/K1P5/1P3PP1/8/8/B7
Input: Frank Müller, 2009-07-17
Last update: Marcin Banaszek, 2021-02-12 more...
8 - P1092864
Vladimir V. Nikitin
16346 Tidskrift för Schack 11/2003
P1092864
(2+10)
#9
1. Lxe4 e1=S 2. Ld5 Sd8 3. Lc4 c1=S 4. Lb5 Sc6 5. Lxc6 Sc7 6. La4 ... 7. Ld1+ Se2 8. Lxe2+ Sf3 9. Lxf3#
6. ... Sc2 7. Lxc2 ... 8. Ld1+ Se2 9. Lxe2#
6. ... Sb3 7. Lxb3 Sd5 8. Ld1+,Lxd5
7. ... Se6 8. Ld1+,Lxe6
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Anton Baumann: C+ Gustav 4.2a (2023-04-10)
comment
Keywords: Minimal (L), Capture key, Promotions to Knights, konsekutive Umwandlungen 2 (ss), under-promotion (ss)
Genre: n#
FEN: 8/1n6/n2b3p/5K1k/4p2p/7p/2p1p3/7B
Input: Frank Müller, 2009-10-22
Last update: Gunter Jordan, 2023-04-10 more...
9 - P1092871
Andrey Selivanov
1 Isbrannoje twortschestwo 2001
Waleri Kirillow 50 JT
1. Preis
P1092871
(10+9) C+
s#5
1. Sc8! Kxf6 2. f8=T+ Ke6 3. d8=T g4 4. Sxa7 Txa7 5. De7+ Txe7#
1. ... g4 2. f8=L Kxf6 3. d8=L+ Ke6 4. Lc4+ bxc4+ 5. Dd7+ Lxd7#
play all play one stop play next play all
more ...
comment
Keywords: Epaulettenmatt, konsekutive Umwandlungen 2, Exchange of Promotions
Genre: s#
Computer test: M. Schreckenbach: Gustav 4.1 d
FEN: 4K3/p2PNP1Q/rp2kN2/rp4p1/bP6/1p1B2B1/1P6/8
Reprints: F117 FIDE Album 2001-2003 2011
Input: Frank Müller, 2009-10-23
Last update: Marcin Banaszek, 2021-03-14 more...
10 - P1098644
William A. Shinkman
329 Yenowine's News 03/01/1892
P1098644
(3+4) cooked
s#60
1. d8=D+ Kc6 2. e8=D+ Kb7 3. Da8+ Kc7 4. De7+ Kb6 5. Ded8+ Kb5 6. Ddb8+ Kc4 7. De4+ Kc3 8. Dg3+ Kd2 9. Dge3+ Kd1 10. De2+ Kc1 11. D4e3+ Kb1 12. Kg3 c4 13. De4+ Kc1 14. De1+ Kb2 15. Db4+ Kc1 16. Dc3+ Kd1 17. Ded4+ Ke2 18. Dg4+ Kf1 19. Dcf3+ Ke1 20. De3+ Kf1 21. Dee2+ Kg1 22. Kf4+ Kh1 23. Dh5+ Kg1 24. Dc5+ Kh1 25. De4+ Kh2 26. Df2+ Kh3 27. Dfg2+ Kh4 28. Kf5+ Kh5 29. Dgg4+ Kh6 30. Dg5+ Kh7 31. Ke6+ Kh8 32. Dge5+ Kg8 33. Dg6+ Kf8 34. Dgg7+ Ke8 35. Kd6+ Kd8 36. Dge7+ Kc8 37. Dd7+ Kb8 38. Kc6+ Ka8 39. Dc8+ Ka7 40. Dcb8 Ka6 41. Dbb5+ Ka7 42. Dec5+ Ka8 43. Da6+ Kb8 44. Daa7+ Kc8 45. Kb5+ Kd8 46. Db8+ Kd7 47. Df5+ Ke7 48. Dff8+ Kd7! 49. Db7+ Ke6 50. Dbe7+ Kd5 51. Df5+ Kd4 52. Dee4+ Kc3 53. De3+ Kb2 54. Dff2+ Kb1 55. Ka4 c3 56. Dfe1+ Kb2! 57. Db6+ Kc2 58. Dbf2+ Kd3 59. Dee3+ Kc4 60. Dxa2 Txa2#
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In Yenowines News lautete die Forderung: s#60 mit dem Turm
In den BCM hingegen: s#60 without capturing the Rook
Olaf Jenkner: Es wimmelt von Dualen:
Dual 56. Db6+ Kc1 57. De1 Kc1-c2 23.Db6-f2 Kc2-d3 24.De1-e3 Kd3-c4 25.Df2-a2 Ta1-a2#
Duale 52. Dc5+/Da7+ Kc3 53. De3+ und weiter wie in der Autorlösung
Duale 51. Da8+/Dg8+ Kd4 52. Dd8+ Kc3 53. De3+ mit Matt im 60. Zug
Duale 50. Df7+/Dc8+ Ke5/Kd5 51. Df5+ Kd4 52. Dc5+ Kc3 53. De3+ mit Matt im 60. Zug
Duale 49. Da7+/Dd8 Ke6 50. De7+ und weiter wie in der Autorlösung
Dual 47. Dcc8+ Ke7 48. Df8+ und weiter wie in der Autorlösung
Duale 46. Da8+ oder Dce7+
Duale 43. Da4+/Da5+ Kb8 44. Daa7+ und weiter wie in der Autorlösung
Duale 39. Dd8+/De8+ und weiter wie in der Autorlösung
Ist diese Aufgabe cooked zu setzen, oder kann man das tolerieren? (2010-02-05)
Anton Baumann: Bedingung ergänzen: "ohne den Turm zu schlagen", sonst s# in weniger als 35 Zügen.
Lösung nicht korrekt, denn nach 1.d8=D+ Kc6? 2.e8=D+ Kb7 ist 3.Db8+ Ka6 1 Zug kürzer:
4.De6+ Ka5 5.Dbb6+ Ka4 6.Dc4+ Ka3 7.Da5+ Kb2 8.Dac3+ Kb1 9.De3 Kb2 10.Dce2+ Kb1 11.Kg3 c4 ... usw. gemäss Autorabsicht.
Aber 1. ... Ke6,Ke7 2.e8=D+ Kf5 wird massgebend: 3.Df7+ Kg4 4.Dg6+ Kf3 5.Dd5+ Kf4 6.Dgf5+ Ke3 7.Dde4+ Kd2 8.Df2+ Kc1 9.Dee3+ Kd1 10.Df1+ Kc2 11.Dfe2+ Kb1 12.Kg3 c4 ... usw. gemäss Autor (2020-12-23)
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comment
Keywords: Langzügige Miniatur, Sea Snake, konsekutive Umwandlungen 2, Königswanderung
Genre: s#
FEN: 8/3PP3/3k4/2p5/8/8/p6K/r7
Reprints: 145 American Chess Magazine 12/1897
Input: Frank Müller, 2010-01-31
Last update: Frank Müller, 2015-08-07 more...
11 - P1102159
Yaakov Mintz
5924 Phénix 04/2009
P1102159
(5+2) C+
s#11
b) Dh2 nach a7
c) ferner wKb6 nach a3
d) ferner wDa7 nach a5
a) 1. e8=T+! Kd7 2. c8=D+ Kd6 3. Ka5 Kd5 4. Dd2+ Td4 5. Sc3+ Kd6 6. Sb5+ Kd5 7. De6+ Kc5 8. Dc3+ Tc4 9. Td8 Txc3 10. Db6+ Kc4 11. Sa3+ Txa3#
b) 1. Db8+! Kd7 2. e8=D+ Kd6 3. c8=D+ Kd5 4. Dcd7+ Kc4 5. Dee6+ Kb4 6. Ka6+ Ka3 7. Dd3+ Kxa4 8. Dbe8+ Kb4 9. Deb3+ Kc5 10. De7+ Kc6 11. Da4+ Txa4#
c) 1. e8=T+! Kd7 2. c8=D+ Kd6 3. Dab8+ Kd5 4. Te5+ Kd4 5. Db2+ Kd3 6. Sc5+ Kc4 7. Se6+ Kd3 8. Da6+ Tc4 9. De2+ Kc3 10. Tc5 Txc5 11. Da5+ Txa5#
d) 1. e8=D! Kb7 2. c8=L+ Kb8 3. La6+ Ka7 4. Dc7+ Kxa6 5. De2+ Tc4 6. Sc5+ Kb5 7. Dd6 Ka5 8. Sb7+ Kb5 9. Dee5+ Tc5 10. Db2+ Kc4 11. Sa5+ Txa5#
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Anton Baumann: a)-d): C+ Gustav 4.2a (2022-06-13)
YM: In each of the four variations, an additional sacrifice of the white piece in the middle of the combination. (2022-06-13)
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comment
Keywords: Annihilation, Miniature, Minimal, konsekutive Umwandlungen 2, Exchange of Promotions
Genre: s#
FEN: 2k5/2P1P3/1K6/8/N4r2/8/7Q/8
Input: YM, 2010-03-31
Last update: Marcin Banaszek, 2022-06-14 more...
12 - P1104350
György Bakcsi
5134 Deutsche Schachzeitung 03/1987
P1104350
(10+8) C+
s#3
1. Sa7+ Kd7 2. e8=D+ Dxe8 3. f8=S+ Dxf8#
1. Sa7+ Dxa7 2. c8=D+ Lxc8 3. b8=S+ Dxb8#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2, Exchange of Promotions, under-promotion (S)
Genre: s#
Computer test: SCHRECKE: popeye 4.89
FEN: q1N5/1PP1PPp1/BPk4b/2P3Q1/2n2K1p/7b/3n4/8
Input: Frank Müller, 2010-04-29
Last update: Dieter Berlin, 2024-03-15 more...
13 - P1150117
Nils Adrian Bakke
XXXIV The Problemist 6 Special, p. 268, 11/1997
BJM-60 1. Lob ex aequo
P1150117
(5+1) C+
#3
b) wLh4->d4
a) 1. e8=L Kd6 2. c8=T Ke6 3. Tc6#;
b) 1. e8=D+ Kd6 2. c8=S+ Kc7 3. Le5#
play all play one stop play next play all
AL BUD3S BUL3T
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comment
Keywords: Miniature Collection (0053113), Promotion key (L,D), konsekutive Umwandlungen 2 (LT,DS), Allumwandlung (LT,DS), Miniature
Genre: 3#
Computer test: SCHRECKE: popeye 4.87
FEN: 8/2P1P3/P3k3/8/4K2B/8/8/8
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-02-08 more...
14 - P1165927
Paul Michelet
British Chess Magazine 1994
Lob
P1165927
(5+1)
#3
1. h8=L Kh7 2. Lfg7 Kg6 3. f8=S#
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Duplicate Diagram: P1387889

BUL3xS IM
Henrik Juel: C+ Popeye 4.61 (2021-03-28)
comment
Keywords: Miniature Collection (0059261), anticipated (P1387889), Promotion key (L), konsekutive Umwandlungen 2 (LS)
Genre: 3#
FEN: 5B2/5P1P/4P1k1/8/6K1/8/8/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2021-03-28 more...
15 - P1179677
Evgeny Markov
750 The Problemist Supplement 05/1998
P1179677
(8+8)
s#7
1. Lh4! Txh4 2. Ka8 T4h3 3. b8=L Th4 4. d7 T4h3 5. d8=L Th4 6. Dxg2 Txg2 7. Lxh4 Th2,T~#
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Korrektur der dualistischen 132, Uralski Problemist 01-06/1996 (P1187592)
Anton Baumann: DL(ZU) nach 2. ... T2h3: 3.b8=L Th2 4.d7 ...
oder 3.d7 Th2 4.b8=L,d8=L ... (2022-04-08)
comment
Keywords: Phoenix (L), konsekutive Umwandlungen 2 (LL)
Genre: s#
FEN: 1K1B4/1P6/k2P4/7p/2N3p1/N5pr/1P4pr/6Qb
Input: Frank Müller, 2010-11-07
Last update: Marcin Banaszek, 2022-04-19 more...
16 - P1197534
Jorma Pitkänen
48 The Macedonian Problemist 05-08/2000
P1197534
(5+7) C+
s#5
1. c8=L d5 2. b8=S d4 3. Sc6 d3 4. Se5 d2 5. Sg6+ Lxg6#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2, under-promotion (LS), under-promotion key
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 3B4/1PP5/3p4/6rp/7k/8/p6P/rb5K
Input: Frank Müller, 2011-06-13
Last update: James Malcom, 2020-09-22 more...
17 - P1198426
Jean Oudot
186 Themes-64 (6) 04-06/1957
P1198426
(2+3) C+
h#6
sSU=Nachtreiter
1. b5! c4 2. b4 c5 3. b3 c6 4. b2 c7 5. b1=N c8=N 6. Nh4 Nf2#
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Gleich die Letztform für die doppelte Nachtreiterumwandlung nach doppeltem Exzelsior im Sechszüger: Nur die fünf minimal notwendigen Steine! (UiM93)
SCHRECKE: C+, popeye 4.85 (2021-03-02)
comment
Keywords: Excelsior (Doppel-), Promotion (Märchen-), konsekutive Umwandlungen 2 (nN)
Pieces: su = Nightrider (N)
Genre: Fairies
FEN: 8/1p6/8/8/8/6*2nk/2P5/6K1
Reprints: 40 Die Schwalbe 2, p. 35, 12/1969
172. Umwandlungen in Märchenfiguren 1983
IV Rex Multiplex (13) 01/02/1985
866 Umwandlungen in Märchenfiguren 2 1993
6129 Thema Danicum (76) 10/1994
B1 Problemkiste (107) 10/1996
Input: Erich Bartel, 2011-06-29
Last update: James Malcom, 2021-03-03 more...
18 - P1199397
Wilfried Seehofer
2537 Problemkiste (71) 10/1990
Erichi Bartel zum 60. Geburtstag
P1199397
(5+3) C+
s#4
Längstzüger
1. d8=D Dxf4 2. bxa8=L Db8 3. Dd1+ Db3 4. Lg2 Dxd1#
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Vielen Dank in den hohen Norden für diese hübsche
Widmung (-eb-). Erinnerung an alte Zeiten (RQ). Den 3.Zug musste
man erst einmal finden! Gefällt mir sehr! (HPS). Das Herausschlagen
des Bf4 gefällt mir nicht (AB).
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comment
Keywords: Promotion, Maximummer, under-promotion (L), konsekutive Umwandlungen 2 (DL)
Genre: Fairies
Computer test: popeye 4.87
FEN: nq6/1P1P4/8/8/k4P2/8/5P2/5K2
Input: Erich Bartel, 2011-07-26
Last update: Alfred Pfeiffer, 2022-01-05 more...
19 - P1199537
Günter Glaß
N feenschach 03/1982
P1199537
(3+3)
ser-r#6
b) wBd7 nach b7
a) 1. d8=L 2. La5 3. a7 4. a8=L 5. Le4 6. Lb1 b2#
b) 1. b8=T 2. Txb4 3. a7 4. a8=L 5. Le4 6. Lb1 b2#
play all play one stop play next play all
Anton Baumann: b) unlösbar; Autorabsicht ist nicht matt: 7.Txb2 (2020-11-12)
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comment
Keywords: Seriesmover, konsekutive Umwandlungen 2, Kindergarten Problem, Miniature, Kindergarten Problem
Genre: Fairies
FEN: 8/3P4/P7/8/1p6/kp6/8/K7
Input: Frank Müller, 2011-07-29
Last update: Arnold Beine, 2022-08-14 more...
20 - P1214294
Alexander Hildebrand
2436 Springaren 03/1954
1. Preis
P1214294
(6+6)
s#3
1. Db2 h1=L 2. b8=L Lh2 3. Lxh2 Lg2#
1. Db2 h1=S 2. h8=T Lh2 3. Txh2 Sg3#
1. Db2 h1=D (T) 2. Sc4+ dxc4 3. Dxf2+ Lxf2#
play all play one stop play next play all
SCHRECKE: Nach 1. ... h1=L geht dualistisch 2. Sb3 Lh2 3. De2+ fxe2# (2023-11-11)
Gerald Ettl: Verbesserungsvorschlag: +wBa3, +sBa4 (2023-11-11)
comment
Keywords: Allumwandlung, unechte schwarze, konsekutive Umwandlungen 2, under-promotion B/S
Genre: s#
FEN: 8/1P5P/8/3p4/1Q1R4/4kp2/3N1p1p/5Kb1
Input: Frank Müller, 2011-10-11
Last update: Frank Müller, 2011-10-11 more...
21 - P1232126
Reino Heiskanen
Jorma Pitkänen

3331 Suomen Shakki 12/1999
P1232126
(7+2) C+
s#5
1. c8=T! Kd6 2. e8=S+ Ke6 3. Tf6+ Ke5 4. Tf5+ Ke6 5. Dd7+ Txd7#
1. ... Ke6 2. e8=T+ Te7 3. Tf6+ Ke5 4. Td6+ Kxd6 5. Dd7+ Txd7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-11-12)
comment
Keywords: Epaulettenmatt, konsekutive Umwandlungen 2, Exchange of Promotions, Minimal
Genre: s#
FEN: 3K3B/2P1P1r1/8/4k3/Q4R2/4N3/8/8
Input: Frank Müller, 2012-02-12
Last update: Marcin Banaszek, 2021-11-17 more...
22 - P1233746
Frantisek Josef Prokop
2016 Schach 6 03/1955
3. ehrende Erwähnung
P1233746
(11+2) C+
s#4
1. f8=T! Dxa2 2. e8=S+ Kxf8 3. Dh8+ Dg8 4. Tg1 Dxh8#
1. ... Dxb2 2. e8=S+ Kxf8 3. Dh6+ Dg7 4. Tg1 Dxh6#
1. ... Db1 2. Tg8+ Kf6 3. Dh6+ Dg6 4. Tg1 Dxh6#
1. ... Dxc1 2. Tg8+ Kf6 3. Dh4+ Dg5 4. Tg1 Dxh4#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-01-26)
comment
Keywords: benachbarte Felder, konsekutive Umwandlungen 2, Minimal
Genre: s#
FEN: 8/4PPk1/2NN4/7Q/8/8/BP4P1/q1R1R2K
Input: Frank Müller, 2012-03-04
Last update: Marcin Banaszek, 2022-01-27 more...
23 - P1234243
Almiro Zarur
Boletim da UBP 1996
F. Sonnenfeld MT 1995
2. ehrende Erwähnung
P1234243
(13+5) cooked
s#6
1. b8=S Lb7 2. Sxc6+ Lxc6 3. Sd5+ Lxd5 4. Txe6+ Lxe6+ 5. Tf7+ Lxf7 6. g8=S+ Lxg8
Der Läufer frißt sich v-förmig durch.
play all play one stop play next play all
SCHRECKE: 2 Nebenlösungen: 1.Tg8, 1.Dh5
z.B.: 1.Dh5 L:b7 2.L:b7 K:d7 3.c8D+ Ke7 4.Tg8 Kf6 5.T:e6+ Kf5 6.Sfg6 T:h5# (2021-02-27)
comment
Keywords: konsekutive Umwandlungen 2, Promotion
Genre: s#
FEN: b1B2R1N/1PPPk1PK/2p1p2Q/2P1R1r1/5N1B/8/8/8
Input: Frank Müller, 2012-03-11
Last update: James Malcom, 2021-02-27 more...
24 - P1236244
Nikolay Kralin
Oleg V. Pervakov

WCCC Turku 07/1995
Wodka-Turnier
1.-2. ehrende Erwähnung
P1236244
(9+6) C+
s#2
1. c8=S+? Kd8 2. b8=L Sa3#
1. ... Kf6 2. g8=D Sa3#
1. ... Kf7!

1. d8=L+! Kd6 2. b8=S Sa3#
1. ... Ke8 2. h8=S Sa3#
1. ... Kf7 2. g8=T Sa3#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2023-01-03)
comment
Keywords: Allumwandlung, Batteriematt horizontal, konsekutive Umwandlungen 2, Exchange of Promotions
Genre: s#
FEN: 8/1PPPk1PP/8/R7/7p/5p1B/p4P2/rn3K2
Input: Frank Müller, 2012-04-08
Last update: Marcin Banaszek, 2023-01-04 more...
25 - P1238019
Steven B. Dowd
SoH1334 Springaren 03/2012
P1238019
(5+2) C+
s#8
1. Lb4+! Tc5 2. d8=T+ Ke7 3. Tg8 Kf6 4. f8=T+ Ke7 5. Te8+ Kf6 6. Df3+ Tf5 7. Lc3+ Kf7 8. Dh5+ Txh5#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (TT)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 2r2k2/3P1P1K/8/3Q4/8/2B5/8/8
Input: Frank Müller, 2012-05-04
Last update: James Malcom, 2020-09-27 more...
26 - P1238218
George P. Sphicas
1665 Ideal-Mate Review 19 01-03/1986
P1238218
(4+2) C+
ser-s#15
1. e4 2. e5 3. e6 4. e7 5. e8=L 6. Lb5 7. Kb2 8. Kc3 9. Kd4 10. Ke5 11. Ke6 12. Le5 13. h8=L 14. L8f6 15. Ld7+ Dxd7#
play all play one stop play next play all
paul: 14.L8f6 (2022-08-20)
comment
Keywords: konsekutive Umwandlungen 2 (LL), Ideal mate, Seriesmover, Symmetrical end position, Minimal, Miniature
Genre: Fairies
Computer test: V. Kotesovec: Alybadix
FEN: 2k4B/1q5P/8/8/8/8/4P3/K7
Input: Frank Müller, 2012-05-06
Last update: Mario Richter, 2022-08-20 more...
27 - P1238449
Rolf Trautner
4067 Freie Presse (Chemnitz) 19/11/1999
3. ehrende Erwähnung
P1238449
(8+11) C+
#7
1. Lb5+! Kf7 2. Le8+ Kxe8 3. Sc8 e5+ 4. Kd3 c1=S 5. Kc2 a1=S+ 6. Kb1 ... 7. Sd6#
5. ... e1=S 6. Kd1 ... 7. Sd6#
4. ... e1=S+ 5. Ke2 c1=S+ 6. Kd1 ... 7. Sd6#
5. ... g1=S+ 6. Kf1 ... 7. Sd6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-25)
comment
Keywords: Preplan, Model mate, Holst promotion (ss,ss,ss,ss), konsekutive Umwandlungen 2, Promotion
Genre: n#
FEN: n3kNb1/N3B3/p3pP2/3p1p2/3K4/3B4/pPp1pPp1/8
Input: Felber, Volker, 2012-05-09
Last update: James Malcom, 2021-02-26 more...
28 - P1242681
Mark Kirtley
Problemkiste 10/1998
18. Kompositionsturnier
1. ehrende Erwähnung
P1242681
(9+11) C+
s#5
1. e4+! dxe3ep! 2. Sh6+ Kf6 3. e8=S+ Ke7 4. d8=L+ Kd7 5. Db7+ Lxb7#
1. ... fxe3ep! 2. Lg6+ Kxe6 3. e8=D+ Kd6 4. d8=T+ Kc7 5. Dxe5+ Lxe5#
play all play one stop play next play all
more ...
comment
Keywords: Allumwandlung, En passant, konsekutive Umwandlungen 2
Genre: s#
Computer test: Gustav 4.1d
FEN: Q5Nb/3PPB2/1p2N3/2p1pk1P/3p1pp1/7n/1r2P1bK/8
Input: Frank Müller, 2012-06-22
Last update: Marcin Banaszek, 2021-05-31 more...
29 - P1249204
Michel Olausson
6529v Springaren 09/1989
P1249204
(5+6)
s#7 Zero
a) wSd2 nach b2
b) wBh6 nach f7, +sBd4
a) 1. a8=S Ka3 2. Sb6 Ka2 3. h7 Ka3 4. h8=S Ka2 5. Sf7 Ka3 6. Sd6 Ka2 7. Sxb5 b2#
b) 1. a8=L Ka3 2. Lc6 Ka2 3. Lxb5 Ka3 4. Sc4+ Ka2 5. Sd2 Ka3 6. f8=L Ka2 7. Lxb4 b2#
play all play one stop play next play all
Korrektur in Springaren 12/1990, Seite 192.
Anton Baumann: a) so unlösbar
Korrektur Diagramm: wSd2 nach b2 s#7 Zerostellung
a) wSb2 nach d2 b) wBh6 nach f7, +sBd4
C+ Gustav 4.1d (2021-07-23)
comment
Keywords: konsekutive Umwandlungen 2
Genre: s#
FEN: 8/P7/7P/1p6/1p6/1p1P4/k1pN4/n1K5
Input: Frank Müller, 2012-09-19
Last update: Frank Müller, 2012-09-19 more...
30 - P1249372
Stephan Dietrich
16115 Schach 12/2006
P1249372
(12+3) C+
s#9
1. f8=S! g5 2. Sg6 g4 3. c8=L gxh3 4. Sdf6 h2,gxf6 5. Lf5 gxf6,h2 6. Se5 fxe5 7. Lg4 exd4 8. Sc3 dxc3 9. Db2+ cxb2#
play all play one stop play next play all
more ...
comment
Keywords: Pac-Man, konsekutive Umwandlungen 2
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/2PN1Pp1/6p1/8/3PN3/3P2PP/P3Q3/K1k4B
Input: Frank Müller, 2012-09-20
Last update: Marcin Banaszek, 2021-03-23 more...
31 - P1252330
Reinhardt Fiebig
15107 Die Schwalbe 02/2012
Version
P1252330
(2+16) C+
h#12
1. Se1+! Kxg1 2. Lh1 Kxh1 3. b2 Kg1 4. b1=D Kh1 5. Db8 Kg1 6. Dg3+ hxg3 7. Lf5 g4 8. Kf6 gxf5 9. Ke5 f6 10. Kd4 f7 11. Kc3 f8=D 12. Kb2 Db4#
play all play one stop play next play all
Version aus Heft 256, 08/2012, Seite 579 zu P1236907
Anton Baumann: 1.Se1+ Kxg1 2.Lh1 Kxh1 3.b2 Kg1 4.b1=D Kh1 5.Db8 Kg1 6.Dg3+ hxg3 7.Lf5 g4 8.Kf6 gxf5 9.Ke5 f6 10.Kd4 f7 11.Kc3 f8=D 12.Kb2 Db4#
C+ Gustav 4.1d (2021-02-23)
A.Buchanan: In what sense are the two promotions “konsekutive”? (2021-02-24)
James Malcom: Andrew, it's much less a keyword for consecutive promotions as it is a catch-all for all problems with 2 promotions in them. (2021-02-24)
Olaf Jenkner: "konsekutive" means one promotion after the other, not two promotions in two variations.
Of course in helpmate this doesn't make much sense. (2021-02-24)
A.Buchanan: Hi thanks for this. Let's take a step back. I counted *85* non-fairy keywords which refer to promotion or umwandlung in either name or description! There must be other relevant ones with no descriptions today. A keyword has no value to us until it is accurately populated (a small percentage of false positives and negatives). And it requires substantial work to populate. There is also a lot of overlaps and gaps still, which are harder to distinguish because of the number of keywords and the vagueness of both their intended descriptions and usage. I also want to make as precise as possible keyword definitions and to align with actual usage, so that they can be populated automatically by PDB as easily as possible, and so that different curators can populate data harmoniously. So less is more, and then we can fill any gaps that remain. The data doesn't have to be perfect right off, but we should have a path for convergence over time.

"Promotion" can be the catch-all vanilla keyword to track promotions where the promoted officer can be identified, e.g. promotion(Sd) or promotion(x2 Sd). Separate different phases by comma, as usual. “Consecutive promotions” can then return to its intended usage as a thematic keyword identifying a run of promotions as close together as possible. The count shifts to the parameter field rather than part of the keyword itself e.g. not “consecutive promotions 4(stst)" but “consecutive promotion(x4 sstt)”, to reduce the over-supply of keywords, and to allow more selective filtering. Comments welcome. (2021-02-26)
more ...
comment
Keywords: Minimal, Promotion (dD), konsekutive Umwandlungen 2 (dD), Non-standard material (l), Excelsior white
Genre: h#
FEN: b6n/6k1/8/8/6b1/1p2pn1p/p1ppp2P/r1rq2bK
Input: Felber, Volker, 2012-10-27
Last update: A.Buchanan, 2021-02-26 more...
32 - P1253954
Tivadar Kardos
8611 Die Schwalbe 09/1952
P1253954
(5+14) C+
h=5*
* 1. ... De6=
1. dxe4 d5 2. e3 d6 3. e2 d7 4. e1=T d8=S 5. Te6 Sxe6=
play all play one stop play next play all
Beispielaufgabe zum 112. Thematurnier:
Hilfspatt mit einem einzügigen Satzspiel. Zügezahl unbegrenzt, jedoch mindestens dreizügig.
Anton Baumann: C+ Gustav 4.1d (2021-02-11)
comment
Keywords: Promotion, konsekutive Umwandlungen 2 (tS)
Genre: Fairies
FEN: 5bnn/4prqr/5pbk/3p1p1p/3PQp1K/5P1P/8/8
Input: Felber, Volker, 2012-11-19
Last update: James Malcom, 2021-02-11 more...
33 - P1265099
Valery Barsukov
2239 Zadachi i etyudy 01-04/2005
P1265099
(10+4) C+
s#6
1. d8=L Kd7 2. f8=D Kc6,c8 3. Lf2 Kd7 4. Dbd6+ Kc8 5. La7 b4 6. Dc6+ Lxc6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-04)
comment
Keywords: konsekutive Umwandlungen 2 (LD), Promotion
Genre: s#
FEN: K5B1/3P1P2/4k2P/1p5R/bQ6/1p4P1/1P6/4B3
Input: Frank Müller, 2013-03-21
Last update: James Malcom, 2021-03-05 more...
34 - P1266245
Reinhardt Fiebig
Themes-64 1984
2. ehrende Erwähnung
P1266245
(7+10) C+
#7
1. b7? c1=D 2. b8=S Dh1+!
1. Sh4! Lxh4 2. g4 g6 3. b7 c1=D 4. b8=S Dh6+ 5. Kxh6 Lg5+ 6. Kh7 ... 7. Sd7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-02)
comment
Keywords: Berlin Theme, Phoenix (Weiß), Promotion (d), konsekutive Umwandlungen 2 (dS), under-promotion (S)
Genre: n#
FEN: 2N3B1/2p3pK/1Pp2k2/2R3b1/b1ppp3/6P1/2p3N1/8
Reprints: 11414 Schach , p. 37, 08/1987
Input: Felber, Volker, 2013-04-04
Last update: Gunter Jordan, 2021-03-02 more...
35 - P1267787
Michel Olausson
217 Problemkiste (80) 04/1992
P1267787
(7+6)
h=2
Duplex
w) 1. h1=T a8=T 2. Ta1 Txa1=
s) 1. ... Lg1 hxg1=L 2. a8=S Lc5=
play all play one stop play next play all
SCHRECKE: a)+b): C+, popeye 4.87 (2023-07-05)
comment
Keywords: under-promotion (Tt,Sl), konsekutive Umwandlungen 2 (tT,lS), under-promotion key (in w)
Genre: Fairies
FEN: 2b5/PkPp4/1P1p4/3K1p2/2P2P2/4B3/7p/8
Input: Erich Bartel, 2013-04-20
Last update: Gunter Jordan, 2023-07-04 more...
36 - P1268362
Ralf Chris Handloser
402 idee & form , p. 986, 01/1993
Thomas Maeder gewidmet
P1268362
(8+8)
#4
1. f8=L! e6 2. Lb4 L~ 3. Lc3+
1. ... exf6 2. g8=L f5 3. Lb3 ... 4. Lc2#
2. ... fxe5 3. Lg7 e4 4. Txb2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-06-14)
comment
Keywords: konsekutive Umwandlungen 2 (LL)
Genre: n#
FEN: 8/1R2pPP1/5P2/4P3/5p2/P2p1P2/pb1p4/rk1K4
Input: Felber, Volker, 2013-04-25
Last update: Rainer Staudte, 2021-06-14 more...
37 - P1270787
Ruzvelt Martsvalashvili
1762 Orbit 01/2006
3. Lob
P1270787
(7+3)
s#9
1. g8=D+ Kh6 2. Dh8+ Lh7 3. f8=L+ Kg6 4. Tg7+ Kh6 5. Td7+ Kg6 6. Dxf6+ Kxf6 7. Lae7+ Kg6 8. Tad8 Lg8 9. Df7+ Lxf7#
play all play one stop play next play all
SCHRECKE: Dual
3.D:f6+ Lg6 4.Dh8+ Lh7 5.Ta5 Kg6 6.f8L Lg8 7.Dh5+ Kf6 8.Dd8+ Ke6 9.Df7+ L:f7# (2020-12-06)
comment
Keywords: half-battery, white, Interchange (kl), konsekutive Umwandlungen 2
Genre: s#
FEN: R3K3/R4PPk/5pb1/3Q4/8/B7/8/8
Input: Frank Müller, 2013-05-25
Last update: Frank Müller, 2013-05-25 more...
38 - P1277964
Torsten Linss
1905 harmonie-aktiv (115) 09/2013
3. ehrende Erwähnung
P1277964
(5+2) C+
s#11
1. Dh8+ Kc7 2. b8=D+ Kc6 3. Db5+ Kc7 4. d8=L+ Kc8 5. Lb6+ Lg8 6. La7 Kc7 7. Dh2+ Kc8 8. Df5+ Le6 9. Dh8+ Kc7 10. Da5+ Kc6 11. Dc8+ Lxc8#
1. ... Lg8 2. d8=T+ Kc7 3. Dc3+ Lc4+ 4. Ka7 Kc6 5. T2d5 Kc7 6. T8d7+ Kc6 7. Ka8 Kb6 8. Da5+ Kc6 9. Da6+ Lxa6 10. b8=S+ Kb6 11. Tb7+ Lxb7#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (2022-07-20)
comment
Keywords: konsekutive Umwandlungen 2, Allumwandlung, Minimal, Miniature
Genre: s#
FEN: 1k6/1P1P3b/K4Q2/8/8/8/3R4/8
Input: Frank Müller, 2013-09-19
Last update: Marcin Banaszek, 2022-07-30 more...
39 - P1278210
Reino Heiskanen
Jorma Pitkänen

7774 Springaren 06/1994
P1278210
(8+10) C+
s#11
1. Lf6+! Tg7 2. Lc3 droht 3. Sg5+ Lxh5#
2. ... Dh1 3. Dxh1 e1=D 4. Dh5 Dh1 5. Dxh1 f1=D 6. Dh5 Da6 7. Sg5+ Dh6 8. Dg6 droht 9. Sf7+ Lxf7#
8. ... Dxg5 9. Dxg7+ Dxg7+ 10. Lxg7+ Kh7 11. Lf5+ Lg6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-13)
comment
Keywords: konsekutive Umwandlungen 2
Genre: s#
FEN: 2nrbK1k/3pB2N/8/6rQ/6B1/1R2PPp1/4pp2/2q5
Input: Frank Müller, 2013-09-24
Last update: Marcin Banaszek, 2020-12-14 more...
40 - P1282913
Torsten Linss
2768 Rochade Europa 12/2013
Lob
Informalturnier 2012-2013
PR Hans Gruber
P1282913
(5+2) C+
s#10
b) sLc7
a) 1. Da4+ Kc5 2. Dd4+ Kb5 3. Tf5+ Sd5 4. f8=T Ka5 5. Tb8 Kb5 6. e8=S Ka5 7. Ka8 Ka6 8. Dc4+ Ka5 9. Db4+ Ka6 10. Sc7+ Sxc7#
b) 1. e8=L+ Kc5 2. f8=D+ Ld6 3. Df5+ Le5 4. Da6 Kd5 5. Kc8 Kc5 6. Kd8 Kd5 7. Dac8 Kd6 8. Df8+ Kd5 9. Dg8+ Kd6 10. Tf6+ Lxf6#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-12-23)
comment
Keywords: Allumwandlung, Forsberg Twins, konsekutive Umwandlungen 2
Genre: s#
FEN: 8/1Kn1PP2/8/1k6/5R2/8/Q7/8
Reprints: Die Schwalbe (272), p. 102, 04/2014
2768 Die Schwalbe 12/2018
Input: TLi, 2014-02-06
Last update: Marcin Banaszek, 2020-12-27 more...
41 - P1285619
Vladimir Klipachov
4921 Seven Chess Notes 100 05/2014
P1285619
(5+2) C+
s#10
1. b8=T+ Ka6 2. Dc4+ Ka5 3. Da2+ Sa3 4. d7 Ka4,Ka6 5. d8=S Ka5 6. Ld7 Ka6 7. Se6 Ka5 8. Dd2+ Ka6 9. Lb5+ Sxb5 10. Sc7+ Sxc7#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-10-12)
comment
Keywords: konsekutive Umwandlungen 2 (TS)
Genre: s#
FEN: K7/1P6/1k1P4/8/8/2Q4B/2n5/8
Input: Frank Müller, 2014-06-15
Last update: Marcin Banaszek, 2020-10-12 more...
42 - P1287499
Valery Kirillov
F016 SuperProblem (Website) 21/08/2014
5. Lob
P1287499
(8+2) C+
s#16
1. De7+! Kh8 2. Th6+ Kg8 3. Lh7+ Kh8 4. Lb1+ Kg8 5. Tg6+ Kh8 6. Df6+ Kh7 7. Df7+ Kh8 8. Tg8+ Dxg8 9. Le5+ Dg7 10. Ka1 Df6 11. d8=L Dg7 12. Lg5 Df6 13. d7 Dg7 14. d8=L Df6 15. De8+ Kg7 16. Le7 Dxe5#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.2a (2022-04-09)
comment
Keywords: konsekutive Umwandlungen 2 (LL), Minimal
Genre: s#
FEN: 2q5/3P3k/3P2R1/5B2/4Q3/6B1/PK6/8
Input: Frank Müller, 2014-08-31
Last update: Marcin Banaszek, 2022-04-19 more...
43 - P1289344
Werner Höller
4886 Freie Presse (Chemnitz) 16/03/2013
P1289344
(7+7) C+
#5
1. Td7! Lf7 2. Te7 d1=S 3. Tc7 a1=S 4. Tc5 Le8 5. Txd5#
3. ... dxc4 4. Td7+ Ld5 5. Sc6#

2. ... Le6 3. Txe6 d1=S 4. Te5 Sc3 5. Le3#
4. ... dxc4 5. Sc6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-25)
comment
Keywords: Staggered preplans, under-promotion (Springer), Promotion, konsekutive Umwandlungen 2 (ss)
Genre: n#
FEN: 7n/R7/5Kb1/N2p1BB1/N1Pk4/5p2/p2p4/8
Input: Felber, Volker, 2014-10-18
Last update: James Malcom, 2021-02-25 more...
44 - P1292815
Rainer Staudte
11 Shakhmatna Misl 01/1990
P1292815
(3+2)
h#6
1. e5 g4 2. e4 g5 3. e3 g6 4. e2 g7 5. e1=L g8=D 6. Ld2 Dc4#
play all play one stop play next play all
zum Vergleich-> P0559319
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-01-25)
comment
Keywords: Excelsior white, Excelsior black, Ideal mate (9D6K1B1l), konsekutive Umwandlungen 2 (lD), Kindergarten Problem, Selfblock
Genre: h#
FEN: 8/4p3/8/8/8/2kP4/6P1/K7
Input: Rainer Staudte, 2014-12-21
Last update: Gunter Jordan, 2022-01-26 more...
45 - P1302074
Ivan Soroka
3615 idee & form (126) 04/2015
P1302074
(5+2) C+
s#8
1. g8=T! Kh2 2. b4 Kh1 3. b5 Kh2 4. b6 Kh1 7. b7 Kh2 6. b8=L Kh1 7. Dc6+ Lg2 8. Df3 Lxf3#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (TL), Excelsior white (L), under-promotion key (T)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: K7/B5P1/7Q/8/8/7b/1P6/7k
Input: Frank Müller, 2015-04-26
Last update: Alfred Pfeiffer, 2020-10-15 more...
46 - P1302572
Zdravko Maslar
16286 Die Schwalbe 272, p. 89, 04/2015
5. Preis
PR Boris Schorochow
P1302572
(9+9)
h#18
1. Kg8 La2 2. Kf8 Lb1 3. Ke8 La2 4. Kd8 Lb1 5. Kc7 La2 6. Kd6 Lb1 7. Kxe6 La2 8. Kf5 Lb1 9. Kg4 La2 10. Kxh5 Lb1 11. Kg4 La2 12. b1=S h5 13. Sa3 Lb1 14. Sxc2 Lxc2 15. Kg5 Lg6 16. hxg6 h7 17. Kh6 Kc2 18. g5 h8=D#
play all play one stop play next play all
Hierzu gibt es eine Version von ZM, siehe P1398829.
Hans-Jürgen Manthey: Gustav lösst in 2,97 sekunden! brute force, zugzahl unbekannt.
1. Kh8-g8 Lb1-a2 2. Kg8-f8 La2-b1 3. Kf8-e8 Lb1-a2 4. Ke8-d8 La2-b1 5. Kd8-c7 Lb1-a2 6. Kc7-d6 La2-b1 7. Kd6xe6 Lb1-a2 8. Ke6-f5 La2-b1 9. Kf5-g4 Lb1-a2 10. Kg4xh5 La2-b1 11. Kh5-g4 Lb1-a2 12. b2-b1S Bh4-h5 13. Sb1-a3 La2-b1 14. Sa3xc2 Lb1xc2 15. Kg4-g5 Lc2-g6 16. Bh7xg6 Bh6-h7 17. Kg5-h6 Kd1-c2 18. Bg6-g5 h7-h8D# (2021-03-25)
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comment
Keywords: Promotion in the mating move, Promotion (D), under-promotion (s), Switchback (L), Selfblock, Antiphönix, Entblockung, Tempo Loss, konsekutive Umwandlungen 2 (sD)
Genre: h#
FEN: 7k/4p2p/4P2P/4p2P/1p5P/1Pp1p3/1pPpP3/1B1K4
Input: Felber, Volker, 2015-05-06
Last update: Gunter Jordan, 2022-02-02 more...
47 - P1302868
Jozsef Simon
6034 Sakkelet 11-12/1994
P1302868
(8+7) C+
s#11
1. fxg8=S+ Sxg8 2. Lc1+ g5 3. fxg6ep+ Td2 4. Lxd2+ Lf4 5. g7+ Sf6 6. g8=L Le3 7. Lef7 Lf4 8. Le3 Lg5 9. Lf4 Lxf4 10. g5+ Lxg5 11. Txf6+ Lxf6#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2021-03-02)
comment
Keywords: En passant, Promotion (SL), konsekutive Umwandlungen 2 (SL)
Genre: s#
FEN: 1b2B1bK/p4Pp1/R2r1n1k/5P2/6PP/8/1B6/8
Input: Frank Müller, 2015-05-11
Last update: James Malcom, 2021-03-02 more...
48 - P1304998
Gunter Jordan
13346 Springaren (136) 06/2015
P1304998
(7+4) C+
s#7
2 Lösungen
1) 1. c8=S+ Ke6 2. g8=D+ Tf7 3. Sd6 Kf6 4. Se4+ Ke6 5. Dxg6+ Tf6 6. Ke8 Txg6 7. Dg8+ Txg8#
2) 1. c8=T Ke6 2. Te5+ Kd6 3. Txg5 Ke6 4. d5+ Kd6 5. Df6+ Te6 6. g8=D Txf6 7. Df8+ Txf8#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-11-15)
comment
Keywords: Echo, Exchange of Promotions, under-promotion key, konsekutive Umwandlungen 2 (SD, TD), Checking key (in 1), Antiphönix, Promotion (D)
Genre: s#
FEN: 3K1Q2/2P1r1P1/3k2p1/2R3p1/3P2P1/8/8/8
Input: Frank Müller, 2015-07-03
Last update: Gunter Jordan, 2023-12-29 more...
49 - P1318000
Virgil Nestorescu
Sah-Mat 1985
2. Preis
Israel Ring-Turnier 1985
P1318000
(4+3)
Gewinn
1. g6? e4 2. Sf7 e3 3. Sg5+ Kf4 4. Sh2 e2 5. Shf3 Kg3 6. Kh6 Kg4 remis
1. Sg6? Kf2 2. Sh2 Ld2! 3. Sg4+ Ke2! 4. Se7 Lxg5 5. Kxg5 e4 6. Sf5 e3 remis
1. Sh2+? Kg3 2. Sg4 e4 3. Sf7 Kf4 4. Sfe5 e3 5. g6 e2 6. g7 e1=D 7. Sd3+ Kg3 8. Sxe1 Lxg7 remis

1. Sd2+! Lxd2 2. g6 e4 3. g7 e3 4. Sg6! e2 5. Sh4+ Kf2 6. g8=D e1=D 7. Dg2+! Ke3 8. Dh3+ Ke2 9. Df3#

4. g8=D? e2 5. Sg6 e1=D 6. Sh4+ Ke2 7. Dg4+ Kd3 remis
1. ... Kf4 2. Se4! Lb4 3. g6 Lf8 4. Sc5 Kf5 5. Sf7 Lg7 6. Sd6+ gewinnt
1. ... Ke3 2. Se4 Lb4 3. g6 Lf8 4. Sg5 Lg7 5. Shf7 gewinnt"
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Anton Baumann: Das Probespiel 1.g6 dringt durch: 1. ... e4 2.Sf7 e3 3.Sg5+ Kf4 4.Sg3! Kxg3? 5.Se4+ +_
Ferner NL: 1.Sf7 e4 2.g6 Lg7 3.Sd2+ Ke3 4.Sb3 Kd3 5.Sc5+ Ke3(Kd4? 6.Se6+) 6.Sg5 +_ (2022-09-27)
comment
Keywords: Remote selfblock (dl), konsekutive Umwandlungen 2 (Dd), Checking key
Genre: Studies
FEN: 7N/8/8/4p1PK/8/2b2k2/8/5N2
Input: Rainer Staudte, 2016-03-06
Last update: Alfred Pfeiffer, 2019-07-18 more...
50 - P1322040
Vitaly S. Kovalenko
718 The Problemist 05/1996
5. Lob
P1322040
(4+4)
Remis
1. a5? Kxa5 2. Kc7 h4 3. c5 h3 4. cxb6 h2 5. b7 h1=D 6. b8=D Dh2+

1. Kc7! h4 2. Kxb6 h3 3. Ka7 h2 4. b6 h1=D 5. b7 Dg1+ 6. Ka8 Dg2 7. Ka7 Df2+ 8. Ka8 Df3 9. Ka7 De3+ 10. Ka8 De4 11. Ka7 Dd4+ 12. Ka8 Db6 13. b8=D Dxb8+ 14. Kxb8 Kxa4 15. Kc7 Kb4 16. Kd7 e5 17. Kd6 e4 18. c5
14. ... Kxc4 15. Kc7 e5 16. Kb6 e4 17. a5
14. ... e5 15. Kb7 e4 16. a5 Kxa5 17. c5
16. c5? Kxc5
6. Ka6? Dg3 7. Ka7 Dc7
3. c5? h2 4. c6 h1=D 5. c7 Da8
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Anton Baumann: unlösbar: Schwarz gewinnt mit 6. ... Kxa4! 7.b8=D Dc5! ... usw. gem. Nalimov in 69 Zügen (2021-11-29)
comment
Keywords: Kindergarten Problem, konsekutive Umwandlungen 2 (dD)
Genre: Studies
FEN: 3K4/4p3/1p6/1P5p/PkP5/8/8/8
Input: Rainer Staudte, 2016-07-06
Last update: Alfred Pfeiffer, 2019-07-19 more...
51 - P1325643
Boris Sidorov
Molodoj Leninez (Kurgan) 1986
Lob
Miru Mir
P1325643
(5+2)
Gewinn
1. Sc5 g2 2. Sa4+ Ka6 3. b5+ Ka5 4. b6 g1=D 5. b7 Ka6 6. Sc5+ Dxc5 7. b8=S+ Kb5 8. c4+ Ka5 9. b4+ Kxb4 10. Sa6+
9. ... Dxb4 10. Sc6+
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Anton Baumann: Korrektur Forderung: Remis (vergl. Lösung) (2022-04-16)
comment
Keywords: konsekutive Umwandlungen 2 (dS), under-promotion
Genre: Studies
FEN: K7/1N6/1k6/8/1P6/1P4p1/2P5/8
Input: Rainer Staudte, 2016-09-24
Last update: Alfred Pfeiffer, 2019-07-24 more...
52 - P1334137
Bosko Miloseski
Pavel M. Arestov

C092 SuperProblem (Website) 07/02/2016
P1334137
(10+7) C+
#11
1. Ld4+! Kb2 2. c4+ Tc3 3. Ta1 Kxa1 4. Lxc3 b2 5. Ld3 f5 6. Lh8 f4 7. g7 b1=T 8. g8=T Tb2 9. Tg7 Tb1 10. Te7+ Tb2 11. Te1#
9. ... Tc2 10. Te7+ Tc3 11. Lxc3#
7. ... b1=D? 8. g8=D Db2 9. Lg7 Dc3 10. Lxc3#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2021-03-01)
comment
Keywords: Promotion, under-promotion, konsekutive Umwandlungen 2 (tT)
Genre: n#
FEN: 8/8/5pP1/3P1B2/1P6/ppP2PpK/p1r3P1/1k4BR
Input: Felber, Volker, 2017-05-18
Last update: James Malcom, 2021-03-01 more...
53 - P1338281
S. P. Laub
Quebec Chronicle 17/05/1888
P1338281
(5+1)
#2
1. f8=S! Kd6,Kxf8 2. d8=D#
1. ... Kd8 2. Lf6#
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Felber, Volker: 1989 mit wLc3 statt b2: P1126371 (2017-08-28)
SCHRECKE: C+, popeye 4.87 (2022-05-26)
more ...
comment
Keywords: under-promotion (S), konsekutive Umwandlungen 2 (SD), Rex solus (s)
Genre: 2#
FEN: 8/3PkP2/1K4P1/8/8/8/1B6/8
Input: Rainer Staudte, 2017-08-28
Last update: Alfred Pfeiffer, 2017-08-28 more...
54 - P1352629
Anton Bidlen
Feoktistov 70 JT 07/2018
2. Lob
P1352629
(9+9) C+
h#11
0.2.1...
1) 1. ... c3 2. Kxc3 Kh1 3. Kd4 Kg1 4. c3 Kh1 5. c2 Kg1 6. c1=S Kh1 7. Sxe2 Lxe2 8. Kxe4 Lc4 9. Kf5 Lxe6+ 10. fxe6 f7 11. Kf6 f8=D#
2) 1. ... Kh1 2. Kd1 Kg1 3. Ke1 Kh1 4. Kxf1 c3 5. Kxe2 Kg1 6. Kd3 Kf1 7. Kxe4 Ke2 8. Kf5 Kf3 9. Kxf6 Kxg3 10. Kf5 Kf3 11. f6 g4#
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PAS-Läufer-Hilfsmatt
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comment
Keywords: Promotion (sD), under-promotion, Promotion in the mating move, konsekutive Umwandlungen 2 (sD)
Genre: h#
Computer test: Gustav 4.1d
FEN: 8/5p2/4pP1p/2p1p2P/2p1P2P/4p1p1/2PkP1P1/5BK1
Input: Marcin Banaszek, 2018-07-20
Last update: Marcin Banaszek, 2021-03-07 more...
55 - P1366134
Anatoly Stepochkin
S2811 The Problemist 27-10, p. 392, 07/2020
3.-5. Lob
Sektion s#5-n
P1366134
(5+2) C+
s#9
b) wLa2->h4
Version
a) 1. g7-g8=L+! Kf7-f8 2. d7-d8=D+ Te6-e8 3. Dd8-d6+ Te8-e7 4. Dg5-c1! Kf8-e8 5. Dd6-b8+ Ke8-d7 6. La2-e6+ Te7xe6 7. Db8-c7+ Kd7-e8 8. Lg8-f7+ Ke8-f8 9. Dc1-h6+ Te6xh6#

b) 1. Dg5-h5+! Te6-g6 2. Dh5-d5+ Tg6-e6 3. d7-d8=D Kf7-g6 4. Dd8-g5+ Kg6-f7 5. Dd5-c4! Kf7-e8 6. Dg5-d8+ Ke8-f7 7. g7-g8=S! Kf7-g6 8. Dc4-g4+ Kg6-f7 9. Sg8-h6+ Te6xh6#
play all play one stop play next play all
Das Problem wurde zuerst mit drittem Zwilling (wDg5>h1) und mit Co-Autor Yuri Paramonov in SuperProblem 04/2019 veröffentlicht.
Aber die Lösung war dualistisch:
c) 1. d7-d8=D! Kf7-g6 2. Dh1-h7+ Kg6-f7 3. Dh7-h3 Kf7-g6 4. g7-g8=T+ Kg6-f7 5. Dd8-d7+ Kf7-f6 6. Dh3-h4+ Ke5,Kf5 7. Tg8-g5+ Kf6 8. Tg5-d5+ Kf6-g6 9. Dd7-e8+ Te6xe8#
und
3. Dd8-d6 Kf7-f6 4. Dd6-f4+ Kf6-e7 5. g7-g8=L+ Ke7-e8 6. Dff7+,Dhf7+ Ke8-d8 7. Df7-c7+ Kd8-e8 8. Lg8-f7+ Ke8-f8 9. Dh6+ Te6xh6#
3. ... Kf7-e8 4. Dh7-h5+ Te6-g6 5. La2-b1 Ke8-f7 6. Lb1-f5 Kf7-e8 7. g7-g8=T+ Ke8-f7 8. Lf5-e6+ Kf7-f6 9. Dh5-h6 Tg6xh6#

Judge Ivan Soroka 07/2023:
"Again two solutions – with black rook pinned in the diagram position and four promotions of two white pawns. Unfortunately, the author failed to achieve Allumwandlung – promotion of pawns to all four possible types of pieces: QRBS."
Felber, Volker: Von Stjopotschkin als Alleinautor unter Weglassung des dualistischen Teils c) in THE PROBLEMIST 07/2020 (2021-02-06)
comment
Keywords: konsekutive Umwandlungen 2 (LD,DS,DT), Allumwandlung, Promotion key, Multiple publication, Minimal, Miniature
Genre: s#
FEN: 7K/3P1kP1/4r3/6Q1/8/8/B7/8
Reprints: F163 SuperProblem (Website) 14/04/2019
Input: Marcin Banaszek, 2019-08-08
Last update: Marcin Banaszek, 2023-07-05 more...
56 - P1370124
Martin Minski
2557 Rochade Europa 06/2011
P1370124
(4+4)
Gewinn
1. f8=D! d1=D 2. Dg7+! Kh2! 3. Lf2!! Kh1 4. Dg4! Df1 5. Dh4+ Kg2 6. Dg3+ Kh1 7. Sg4! Dg2 8. Dh4+ Dh3 9. Dxh3#
play all play one stop play next play all
Anton Baumann: 3. ... Txf2 4.Sg4+ Kg2 5.Se3+ Kh1 6.Sxd1 Th2+ 7.Kg8 Tg2 8.Sf2+ Kh2 9.Sg4+ +_
3. ... Df1!? 4.?
Auszeichnung: 1. Preis (2023-09-11)
Anton Baumann: 3. ... Df1 4.Dg3+ Kh1 5.Sg4 Txf2 6.Sxf2+ +_ (2023-09-11)
comment
Keywords: konsekutive Umwandlungen 2 (Dd)
Genre: Studies
FEN: 8/B4P1K/5N2/8/4p3/6k1/3pr3/8
Input: Marcin Banaszek, 2019-12-03
Last update: Alfred Pfeiffer, 2019-12-06 more...
57 - P1370388
Johann Peter Vogelsang
Neue Deister Zeitung 11/12/2004
P1370388
(8+9)
#3
1. Lf7? droht 2. Sd5#,Sh5#
1. ... Dxf7? 2. g8=S#
1. ... Tb4!

1. d8=S! droht 2. Se8+! Dxe8 3. g8=S#
1. ... Txd8 2. Lf7! Dxf7 3. g8=S#
2. ... exf4,gxf4 3. Dd4#,Dh4#
1. ... Sf5+ 2. Sd5+! Dxd5 3. g8=S#
1. ... De6+ 2. Sxe6 Sf5 3. g8=S#

1. d8=D? De6+?,gxf4? 2. Sxe6+,Dh4+
1. ... exf4! 2. ?
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Schwarz droht 1. ... De6+ und auch 1. ... exf4,gxf4, worauf Weiß im Satz keine Mattführung besitzt
'NDZ': "Eine wuchtige Komposition aus unserem Leserkreis."; zum Autor ist angegeben: Johann Peter Vogelsang (Hannover)
Henrik Juel: C+ Popeye 4.61, except for some mate duals (2023-01-19)
comment
Keywords: konsekutive Umwandlungen 2 (SS), under-promotion, Promotion key, Promotion in the mating move
Genre: 3#
FEN: rr4qB/3Pn1P1/3N1k2/b1n1p1pB/5NK1/8/5Q2/8
Input: Mario Richter, 2019-12-10
Last update: Rainer Staudte, 2023-01-19 more...
58 - P1371538
Miodrag Mladenovic
MatPlus.net Forum 14/11/2019
P1371538
(11+9) C+
s#15
1. e8=D+! Kxe8 2. Sd6+ Kxd7 3. c8=L+ Kc6 4. Tc7+ Kxd6 5. Tc6+ Kd5 6. Td6+ Ke5 7. Td5+ Ke4 8. Te5+ Kf4 9. Tf5+ Kg4 10. Tf4+ Kg3 11. Tg4+ Kh3 12. Tg3+ Kh2 13. Txg2+ Kh1 14. Tg1+ Kxg1 15. Dg3+ Dxg3#
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Record of 14 consecutive double checks in a selfmate

Record of a 14 square route of the Black king
SCHRECKE: For which category is it a length record? (2020-01-06)
SCHRECKE: 1.e8D+! K:e8 2.Sd6+ K:d7 3.c8L+ Kc6 4.Tc7+ K:d6 5.Tc6+ Kd5 6.Td6+ Ke5 7.Td5+ Ke4 8.Te5+ Kf4 9.Tf5+ Kg4 10.Tf4+ Kg3 11.Tg4+ Kh3 12.Tg3+ Kh2 13.T:g2+ Kh1 14.Tg1+ K:g1 15.Dg3+ D:g3# (2020-01-07)
Anton Baumann: Autor: Doppelschach (konsekutiv 14-fach), Königstreppe (2020-01-07)
Henrik Juel: Popeye 4.61 with 'opt nichtt 0 1' found no flaws (2020-01-07)
SCHRECKE: C+, Gustav 4.1a, Brute Force (2020-01-08)
James Malcom: This also has, to my current knowledge, the long route of the Black king in a s#, at 14 different squares visited. (2021-01-01)
comment
Keywords: Move Length Record, konsekutive Umwandlungen 2 (DL), under-promotion (L)
Genre: s#
Computer test: Gustav 4.1a, Brute Force
FEN: BQN3N1/1RPRPk2/1B6/1b4np/2nr3r/4q3/4P1p1/4K3
Input: A.Buchanan, 2020-01-06
Last update: James Malcom, 2021-01-01 more...
59 - P1373043
Anton Baumann
19099 Schach , p. 79, 11/2019
P1373043
(7+5) C+
s#10
1. g8=L+! b3 2. Da1+ Lxa1 3. a8=D+ Kb2 4. Da4 g3 5. Lxb3 g4 6. Ld1 Kb1 7. Le2+ Kb2 8. Ke3 Kc3 9. Tb1! Lb2 10. Tc1+ Lxc1#
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19.099 (Baumann) Zuerst soll der sLäufer in die gegenüberliegende Ecke gelenkt und dort blockiert werden, damit Weiß seinen Mattkäfig bauen kann. Die Unterverwandlung im Schlüsselzug erfolgt, weil der Läufer im Mattbild als Block gebraucht wird. 1.g8L+! b3 2.Da1+ L:a1 3.a8D+ Kb2 4.Da4 g3 (Das Matt auf c1 wird verhindert durch den wBe4! Ohne diesen Bauern geht: 5.Te1 g4 6.Te2 Kb1 7.Lh7+! Kb2 8.Kd1+ Kc3 9.Tc2+ b:c2+ 10.Kc1 Lb2 matt. Also Mattfeld e3!?: 5.Lc4? g4 6.Lf1 Kb1 7.Le2+ Kb2 8.Ke3 Kc2!; jetzt stört die Masse des sBb3, aber das lässt sich beheben) 5.L:b3 g4 6.Ld1 Kb1 7.Le2+ Kb2 8.Ke3 Kc3 9.Tb1! Lb2 10.Tc1+ L:c1 matt (4 P.). „Unterverwandlung im Schlüssel, Läuferlenkung, Phönix, Beseitigung hinderlicher Masse“ (Autor). „Nach der effektvollen Opferlenkung des sL nach a1 funktioniert das weiße Spiel perfekt wie ein Schweizer Uhrwerk“ (KR). „Der Clou liegt im Schlüsselzug: Auf 1.g8D+? würde 5.D:b3 mit Schachgebot erfolgen. Der schwächere Zug erweist sich letzten Endes als der Stärkere“ (KHS).
Henrik Juel: Popeye 4.61 with 'opt nichtt 0 1' found no flaws (2020-03-01)
Anton Baumann: C+ Gustav 4.0i (26 h) (2021-01-12)
comment
Keywords: konsekutive Umwandlungen 2 (LD), corner to corner (l), under-promotion key (L), Phoenix (D)
Genre: s#
Computer test: Gustav 4.0i (26 h)
FEN: 7b/P5P1/8/6p1/1p2P1p1/8/k2K2P1/2Q4R
Input: Felber, Volker, 2020-03-01
Last update: James Malcom, 2021-01-12 more...
60 - P1380329
Stanislaw E. Bogdanowitsch
Problemist Ukrainy 2010
P1380329
(9+6) C+
#6
1. Se6+? Kg8! 2. Se7+ Kf7 3. Sd8+ Kf8 4. Se6+ Kf7
2. f7+? Kh8!

1. Da3+! Txa3 2. Se6+ Kg8 3. f7+ Kxf7 4. Sd6+ Ke7 5. c8=S+ Kd7 6. b8=S#
1. ... Kg8 2. Se7+ Kf8 3. Sxg6+ Kg8 4. Df8#
3. ... Ke8 4. De7#
2. ... Kh8 3. Sf7#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (SS), under-promotion (SS), Checking key
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 2NN1k2/1PP4p/5Pp1/3PP2q/8/5r2/3r4/Q5K1
Reprints: Schach , p. 73, 10/2020
Input: Rainer Staudte, 2020-09-27
Last update: James Malcom, 2020-09-27 more...
61 - 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#
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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...
62 - P1380850
Anatoly Stepochkin
3478 Variantim 81 08/2020
1. Lob
Israel Ring Tourney 2019-2020
Section s#5-n
P1380850
(5+2) C+
s#9
1. d8=L! Kh5 2. Dh4+ Kg6 3. g8=D+ Kf5 4. Dhg3 Ke4 5. Lb6 Kf5 6. Kg7 Ke4 7. Kf8 Kf5 8. D8g4+ Kf6 9. Ld8+ Txd8#
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (LD), Minimal (t), Miniature, under-promotion key (L)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 7K/3P2P1/6k1/8/5Q2/3r4/2B5/8
Input: Rainer Staudte, 2020-10-12
Last update: Marcin Banaszek, 2021-05-04 more...
63 - P1381543
Ivan Soroka
7651 Phénix 268 12/2016
P1381543
(5+2) C+
s#11
1. g7-g8=D+! Kf7-f6 2. Dg8-g4 Kf6-f7 3. Kh7-h8 Kf7-f6 4. Df4-g5+ Kf6-f7 5. Dg5-h5+ Kf7-f6 6. d7-d8=S Sf5-e3,S~ 7. Dg4-f4+ Se3-f5 8. Df4-d6+ Sf5xd6 9. Dh5-e5+ Kf6-g6 10. Te8-g8+ Kg6-h6 11. Sd8-f7+ Sd6xf7#
play all play one stop play next play all
Anton Baumann: C+ Gustav 4.1d (2020-11-11)
comment
Keywords: Promotion key, Checking key, under-promotion (S), konsekutive Umwandlungen 2 (DS)
Genre: s#
FEN: 4R3/3P1kPK/8/5n2/5Q2/8/8/8
Input: Marcin Banaszek, 2020-11-04
Last update: Marcin Banaszek, 2020-11-12 more...
64 - P1381700
A. H. Bobbins
154 American Chess Magazine Vol. 1, p. 443, 12/1897
P1381700
(6+3)
=2 durch Schwarz

Black forces a draw in two moves
1. ... c1=wL!
2. Sb1 axb1=wL! Patt
2. Db1+ axb1=B! Patt
play all play one stop play next play all
James Malcom: I've added in the solution now. (2020-11-11)
comment
Keywords: Joke promotion, under-promotion key, konsekutive Umwandlungen 2 (LL, Lb), Dummy Pawn, Golden Age (Dummy Pawn)
Genre: Fairies
FEN: 8/P7/8/5B2/8/K1NQ4/pPp5/k7
Input: James Malcom, 2020-11-10
Last update: A.Buchanan, 2023-08-04 more...
65 - P1384231
Ivan Soroka
S436 Problemist Ukrainy 07-09/2020
2. Lob
Sektion s#9-n
P1384231
(5+3) C+
s#11
1. f2-f4! Kh5-h6 2. f4-f5 Kh6-h5 3. f5-f6 Kh5-h6 4. f6-f7 Kh6-h5 5. f7-f8=T Kh5-h6 6. Tf8-f6+ Kh6-h5 7. Lb1-g6+ Kh5-h6 8. Lg6-h7+ Kh6-h5 9. Tf6-f5+ Kh5-h6 10. Lh7-g8 b2-b1=D+ 11. Dg3-g7+ La1xg7#
play all play one stop play next play all
Judge Valery Kirillov 12/2020
more ...
comment
Keywords: Excelsior, Promotion, konsekutive Umwandlungen 2 (TD)
Genre: s#
Computer test: Gustav 4.1d
FEN: 7K/8/8/7k/8/6Q1/1p3P1P/bB6
Input: Marcin Banaszek, 2020-12-26
Last update: Marcin Banaszek, 2021-02-16 more...
66 - P1384934
James Malcom
PDB Website 04/01/2020
P1384934
(5+8) C+
h#2
1. b1=B! Lxa3 2. c1=B! Dxc3#
play all play one stop play next play all
more ...
comment
Keywords: Dummy Pawn, Golden Age (Dummy Pawn), konsekutive Umwandlungen 2 (bb)
Genre: h#
Computer test: Popeye 4.79
FEN: 8/8/8/8/p2Q4/r1pKP3/ppp1P3/k1Bb4
Input: James Malcom, 2021-01-04
Last update: A.Buchanan, 2023-08-04 more...
67 - P1385631
Christer Jonsson
Kivanc Cefle


2. Lob
Gennady Kozura 64 JT 2019
P1385631
(3+6)
h#6
2.1...
1) 1. Kxh2 a3 2. Kg3 a4 3. Kf4 a5 4. Ke5 a6 5. Kd6 a7 6. Kc7 axb8=D#
2) 1. Lxh2 a4 2. g5 axb5 3. g4 bxc6 4. g3 cxd7 5. g2 d8=D 6. g1=L Dd5#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-01-22)
comment
Keywords: Corner mate (in 2), Excelsior black (in 2), Excelsior white, Königswanderung (in 1), konsekutive Umwandlungen 2 (Dl in 2), Model mate (in 2), Selfblock (in 2), Tempo Loss (in 1), Promotion in the mating move (in 1), Promotions to queens, under-promotion (l in 2)
Genre: h#
FEN: Kb6/3p2p1/2p5/1p6/8/8/P6Q/7k
Reprints: L Springaren 154, p. 57, 06/2020
Input: Gunter Jordan, 2021-01-22
Last update: Gunter Jordan, 2021-01-22 more...
68 - P1386427
Pascale Piet
8981 Seven Chess Notes 178 11/2020
P1386427
(2+5) C+
h#6
1. Dd4 cxd4 2. g3 d5 3. g2 d6 4. g1=T d7 5. Tg8 d8=S 6. Lg7 Sf7#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-02-12)
comment
Keywords: Corner mate, Smothered mate, konsekutive Umwandlungen 2 (tS), Miniature, Minimal (B), Model mate, Selfblock, under-promotion (St)
Genre: h#
FEN: 5b1k/7n/8/8/6p1/2P5/2K5/6q1
Input: Gunter Jordan, 2021-02-12
Last update: James Malcom, 2021-02-12 more...
69 - P1386697
Lubos Kekely
2035 Gaudium 228 15/07/2020
P1386697
(8+3) C+
ser-h#32
Bicolores
1. Kg4 2. Kf3 3. Ke3 4. Kd2 5. Kc1 6. Kb2 7. Kxa3 8. Kb2 9. Kxc2 10. Kb2 11. Ka3 12. Ka4 13. Ka5 14. Kb6 15. Kc5 16. Kxd5 17. Kxe5 18. Kf4 19. Ke3 20. Kd2 21. Kxc3 22. Kd4 23. c3 24. c2 25. c1=L 26. Lf4 27. Lxh2 28. Ke3 29. Le5 30. h2 31. h1=L 32. Le4 Sc4#
play all play one stop play next play all
Henrik Juel: Bicolores is not yet defined in the PDB
Alle Steine ziehen und schlagen normal, üben aber Schach bietende Wirkung auf beide Könige aus.
Here is my attempt in English:
All men move normally, but check both kings (2021-02-20)
comment
Keywords: Entblockung, Ideal mate, Königswanderung, konsekutive Umwandlungen 2 (ll), Switchback (k), Round Trip (k-14), Selfblock, Seriesmover, Promotions to bishops, under-promotion (l)
Genre: Fairies
Computer test: Popeye Windows-64Bit v4.79 (4096 KB)
FEN: 8/8/3N4/3PB1k1/2p5/N1P4p/2B4P/5K2
Input: Gunter Jordan, 2021-02-20
Last update: Gunter Jordan, 2021-02-20 more...
70 - P1387044
Ivan Bryukhanov
6425 Zadachi i etyudy 82 31/12/2020
P1387044
(5+2) C+
s#8
1. c8=D b5 2. Dc3 b4 3. Da3+ bxa3+ 4. Ka1 Kb3 5. Td4 Kc2 6. g8=T Kb3 7. Tb8+ Kc2 8. Tb2+ axb2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-06)
comment
Keywords: konsekutive Umwandlungen 2 (DT), under-promotion (T), Promotion key, Minimal, Miniature, Promotion
Genre: s#
FEN: 8/2P3P1/1p6/3R4/k7/8/NK6/8
Input: Rainer Staudte, 2021-03-06
Last update: James Malcom, 2021-03-06 more...
71 - P1387183
Zoltan Labai
Chorno-bili stezhyny 4/53, p. 33, 10-12/2016
2. Lob
JT Waleri Stankewitsch-85
PR Alexandr Semenenko
P1387183
(2+14)
h#7
1. Se8 h6 2. Sg7 hxg7 3. g2 g8=L 4. g1=L Lxf7 5. La7 Lxb3 6. d5 Lxa4 7. Lhb8 Lxc6 #
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2021-03-08)
Viktoras Paliulionis: Keyword Antiphönix is deprecated. (2021-03-09)
comment
Keywords: Antiphönix, Corner mate, konsekutive Umwandlungen 2 (Ll), Minimal (B), Model mate, Selfblock, Promotions to bishops, under-promotion (Ll)
Genre: h#
FEN: k7/5p1p/2pp1n2/7P/b7/pp4p1/rp5b/1Kn5
Input: Gunter Jordan, 2021-03-08
Last update: Gunter Jordan, 2021-03-08 more...
72 - P1387497
Valery Barsukov
Chorno-bili stezhyny 4/53, p. 38, 10-12/2016
3. Lob
JT Waleri Stankewitsch-85
Abt. Miniaturen
PR Alexandr Semenenko
P1387497
(2+5)
h#6
b) wBf2->g2
a) 1. b4 f4 2. b3 f5 3. b2 f6 4. b1=T f7 5. Tb2 f8=D 6. Th2 Df1#
b) 1. Lb6 g4 2. Kg2 g5 3. Kf3 g6 4. Ke4 g7 5. Kd5 g8=S 6. Kc6 Se7#
play all play one stop play next play all
SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force (2021-03-17)
comment
Keywords: Corner mate (in a), Excelsior white, Remote selfblock (in b), Ideal mate (in b), konsekutive Umwandlungen 2 (tD in a), Miniature, Model mate (in a), Selfblock (in a), Promotion (D in a), under-promotion (t in a)
Genre: h#
FEN: 2Kb4/8/3p4/1pp5/8/8/5P2/7k
Input: Gunter Jordan, 2021-03-17
Last update: Gunter Jordan, 2021-03-17 more...
73 - P1387889
Wladimir Semetschkin
Pioner 11, p. 75, 1976
P1387889
(5+1)
#3
1. h8=L Kh7 2. Lfg7 Kg6 3. f8=S#
play all play one stop play next play all

Duplicate Diagram: P1165927

Henrik Juel: C+ Popeye 4.61 (2021-03-28)
comment
Keywords: Miniature, under-promotion key (L), konsekutive Umwandlungen 2 (LS)
Genre: 3#
FEN: 5B2/5P1P/4P1k1/8/6K1/8/8/8
Input: Rainer Staudte, 2021-03-28
Last update: Rainer Staudte, 2021-03-28 more...
74 - P1388314
Theodor Nissl
1121 Deutsche Schachzeitung 12, p. 415, 12/1958
Dr. Zepler gewidmet
5. Preis
P1388314
(5+8) C+
#9
1. Db4! h2 2. Dd6! cxd6 3. c7 d5 4. c8=S d4 5. Sb6 axb6 6. a7 b5
7. a8=D b4 8. Txb1+ Kxb1 9. Dh1#
play all play one stop play next play all
more ...
comment
Keywords: Promotion (SD), konsekutive Umwandlungen 2 (SD)
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/pQp5/P1P5/8/8/1p1K3p/bp6/kn5R
Input: Dieter Berlin, 2021-04-09
Last update: Alfred Pfeiffer, 2021-04-20 more...
75 - P1389203
Michael Olbrig
1574 Troll 9 14/04/2021
P1389203
(6+8) C+
#9
1. c7 d4 2. c8=S d3 3. Sd6 exd6 4. e7 d5 5. e8=S d4 6. Sf6 gxf6 7. Lg8 f5 8. Ld5 f4 9. Lxf3#
play all play one stop play next play all
SCHRECKE: sLg1 ist Umwandlungsläufer und völlig überflüssig! (2021-05-02)
more ...
comment
Keywords: konsekutive Umwandlungen 2 (SS), Obvious promotion
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/4p1pB/2P1P1P1/3p4/8/5p2/3P1p1p/5Kbk
Input: Rainer Staudte, 2021-05-02
Last update: Alfred Pfeiffer, 2021-08-03 more...
76 - P1390207
Ernst Schütte
203 Deutsche Schachblätter 23, p. 428, 01/12/1936
P1390207
(5+4) C+
#4
1. Se4? f1=S!

1. Sg4! f1=S 2. Lc6 g1=S 3. Lh1!
play all play one stop play next play all
more ...
comment
Keywords: konsekutive Umwandlungen 2 (ss), Promotions to Knights, under-promotion (ss)
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: K7/8/5N2/8/B7/3R4/4kppp/3R4
Input: Dieter Berlin, 2021-05-29
Last update: Alfred Pfeiffer, 2021-09-07 more...
77 - P1390934
Geza Erdös
497 Deutsche Schachzeitung 7, p. 176, 04/1954
P1390934
(9+6)
#5
1. e8=D! Lxe8 2. h8=D Dxh8 3. c4+ dxc3ep 4. e4+ Kd4 5. Sf5#
play all play one stop play next play all
Henrik Juel: several duals in other variations (2021-11-01)
comment
Keywords: Promotion key (D), En passant, konsekutive Umwandlungen 2 (DD), Promotions to queens
Genre: n#
FEN: 8/4P1NP/1K3pb1/2Nk4/3p1P2/1P6/2P1P3/3r3q
Input: Dieter Berlin, 2021-06-19
Last update: Alfred Pfeiffer, 2021-11-01 more...
78 - P1391849
Sergii I. Tkachenko
Leonid Lyubashevsky

H2615 StrateGems 95 07-09/2021
P1391849
(2+7) C+
h#6
1. f2-f1=L Ld1xc2 2. Td2-d1+ Lc2xd1 3. c3-c2 Kc1-d2 4. c2-c1=L+ Kd2-e1 5. Lc1-f4 Ke1xf1 6. Lf4-h2 Ld1xf3#
play all play one stop play next play all
VL: Schnoebelen Theme (l) (2022-01-23)
comment
Keywords: Minimal (L), under-promotion key (l), under-promotion (l), Promotions to bishops, konsekutive Umwandlungen 2 (ll), Antiphönix, Selfblock, Corner mate
Genre: h#
Computer test: Gustav 4.1c
FEN: 8/8/8/8/8/2pp1p2/2pr1p2/2KB3k
Input: Marcin Banaszek, 2021-07-16
Last update: Alfred Pfeiffer, 2022-02-02 more...
79 - P1393746
Tivadar Kardos
144 Pedagogusok Lapja 14/12/1970
P1393746
(5+2)
#2
1. c8=S! Ka6 2. Dxb6#
1. ... Kc6 2. Dxb6#
1. ... Kxc8 2. a8=D#
1. ... Ka8 2. Dg2#
play all play one stop play next play all
SCHRECKE: C+, popeye 4.87 (2021-09-15)
comment
Keywords: X flights, under-promotion key (S), konsekutive Umwandlungen 2 (SD)
Genre: 2#
FEN: 4N3/PkP5/1b2K3/8/8/8/1Q6/8
Input: Rainer Staudte, 2021-09-15
Last update: Rainer Staudte, 2021-09-15 more...
80 - P1394769
Oleg Paradzynskyi
G44/124 feenschach 245, p. 149, 05-06/2021
P1394769
(2+2) C+
h#6
Beamtenschach
1. d2 b8=T 2. d1=D Tb1 3. Dg1+ Tb7+ 4. Ka6 Ta7+ 5. Ka5 Kd4 6. Ka4 Kc4#
play all play one stop play next play all
Gunter Jordan: Ein sehr schöner Wenigsteiner, der es verdient hätte, im Urdruckteil von feenschach zu erscheinen, statt in der Grube versenkt zu werden. (2021-10-21)
Henrik Juel: In Functionary chess all men are functionaries
A functionary has no powers (except the ability to observe), unless it is observed by an enemy man
In this problem, initially the pawns are observed by the kings, so they may move and promote
2... Tb1 is possible, because Tb8 is observed Ka7, and then Tb1 observes Dd1, who checks on g1
3... Tb7+ is possible, because Tb1 is observed by Dg1, and this white move releases the check from Dg1, because Dg1 is no longer observed, and it checks, because Tb7 is observed by Ka7
5.Ka5 escapes from check, because Ta7 is no longer observed
6... Kc4# is possible, because Kd4 is observed by Dg1, and this white move delivers check from Ta7, because now Ta7 is observed by Dg1
7.Ka5,Ka3? are illegal, because the black king is still in check from the observed Ta7
Kc4 has no powers before Black attempts the illegal moves 7.Kb3,Kb4,Kb5? which observe Kc4
Popeye 4.61 quickly tests this h#6, because there are relatively few moves to consider (2021-10-22)
Henrik Juel: Andrew, your english definition might be clearer, if you replace 'threaten' by 'observe' (2021-10-22)
A.Buchanan: OK will do - I will add that to observe is to attack a friendly piece. Attack is a term from the laws (2021-10-22)
comment
Keywords: Functionary Chess, Kindergarten Problem, konsekutive Umwandlungen 2 (Td), Cross check, Minimal (B,b), Model mate, Rückkehr nach Umwandlung, Round Trip (B-3), Promotion (d), under-promotion (T)
Genre: Fairies
FEN: 8/kP6/8/8/8/3pK3/8/8
Input: Gunter Jordan, 2021-10-21
Last update: Gunter Jordan, 2021-10-21 more...
81 - P1397433
Louis Azemard
diagrammes 1977
P1397433
(2+5) C+
ser-h#8
1. e1=S 2. Sd3 3. b1=L 4. Lba2 5. Sf4 6. Sg6 7. Lh7 8. Lag8 Lxf6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-12-24)
comment
Keywords: Seriesmover, konsekutive Umwandlungen 2 (sl), Minimal (L), Miniature, under-promotion B/S, under-promotion key, Line closing, Check Protection
Genre: Fairies
FEN: 6bk/8/5p2/4B3/4K3/8/1p2p3/8
Input: Alain Brobecker, 2021-12-24
Last update: Gunter Jordan, 2021-12-24 more...
82 - P1397434
Louis Azemard
diagrammes 1978
P1397434
(3+3) C+
ser-h#12
1. b1=S 2. Sd2 3. Sf3 4. Sxh2 5. Sf3 6. h2 7. h1=L 8. Lg2 9. Kh3 10. Kh2 11. Kh1 12. Sh2 Lxg2#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2a, Brute Force (2021-12-24)
comment
Keywords: Seriesmover, Miniature, under-promotion B/S, konsekutive Umwandlungen 2 (sl), Entblockung, Liniensperrung, Check Protection, Ideal mate, Corner mate, Antiphönix
Genre: Fairies
FEN: 8/8/8/8/7k/7p/1p3K1P/5B2
Input: Alain Brobecker, 2021-12-24
Last update: Gunter Jordan, 2021-12-24 more...
83 - P1397486
Dmitri W. Pronkin
Andrey Frolkin
Werner Keym
Boris Tummes

Rund um die Retroanalyse 25/12/2021
P1397486
(14+14) cooked
BP in 59.0
1. a4 h5 2. a5 h4 3. a6 h3 4. axb7 hxg2 5. h4 d5 6. h5 d4 7. h6 d3 8. h7 dxc2 9. d4 a5 10. Lh6 c1=T 11. e4 Tc5 12. Se2 Th5 13. e5 c5 14. e6 Sc6 15. b8=T a4 16. Tb4 a3 17. Ta4 c4 18. b4 c3 19. b5 c2 20. b6 c1=T 21. b7 Tc4 22. b8=T Da5+ 23. Tbb4 Lb7 24. Sbc3 0-0-0 25. exf7 e5 26. Tc1 Lc5 27. f8=T a2 28. Tf3 a1=D 29. Sa2 g1=D 30. Tfa3 Dg6 31. f4 De8 32. f5 g5 33. f6 g4 34. f7 g3 35. f8=T g2 36. Tf5 g1=T 37. Lf8 Tgg5 38. Sg3 e4 39. Ld3 e3 40. 0-0 e2 41. Lb1 e1=T 42. Tc2 Te3 43. d5 Td7 44. d6 Tf7 45. d7+ Kb8 46. Dd6+ Ka8 47. Dc7 Sge7 48. d8=T+ Sc8 49. Tdd3 Thg8 50. h8=T Sd8 51. Th6 Lg2 52. Se4 Sb6 53. Sd6 Tf4 54. Sb7 Sc4 55. Thd6 T8g6 56. Tf3 Dg7 57. Te5 Sb2 58. Tbc4 Ld4 59. Sb4 Te1#
play all play one stop play next play all
https://www.thbrand.de/2021/12/25/59-zuege/

Am vierten Advent hatte ich noch gefragt, wie lange eurer Meinung nach der bestehende Längenrekord für (orthodoxe) Beweispartien wohl noch Bestand haben werde — und sechs Tage später präsentieren vier Autoren ihre Überbietung!! (OK, ich gebe zu: Als ich die Frage stellte, kannte ich schon die Antwort…)

Vor knapp fünf Jahren war der Versuch der ersten drei Autoren noch von Boris Tummes gekocht worden, nun hat er das Autorenteam verstärkt — und herausgekommen ist eine Beweispartie, die nun drei Halbzüge länger ist als der bisherige Rekord.

(diagram)

urz noch einmal zur Geschichte:
In den Jahren 1988/89 arbeiteten Pronkin und Frolkin elf Monate lang mit Hunderten von Positionen. Eine erste Rekordfassung (mit 58,0 Zügen) erschien in der Schwalbe im Juni 1989, eine kleine Korrektur (mit 57,5 Zügen), der bisherige Rekord, im Februar 1990. 2016 unternahm Frolkin, von Keym unterstützt, einen zweiten Versuch (Die Schwalbe , Februar 2017); doch wurde ihre Beweispartie (58,5 Züge) von Tummes als dualistisch nachgewiesen (Die Schwalbe, April 2018). In einem dritten Anlauf gelang Frolkin im Dezember 2021 gemeinsam mit Keym und Tummes der Durchbruch, der neue Rekord mit 59,0 Zügen.

Ich will euch gar nicht empfehlen, die Aufgabe selbst zu lösen — wer das dennoch machen will, wer noch weiter prüfen will, ist natürlich herzlich eingeladen!

Ansonsten: Spielt zuerst einmal die Lösung genüsslich durch, stellt euch für die nächsten Male im Prinzip die gleichen Fragen, wie ich sie für den alten Rekord vorgeschlagen hatte — und zum Schluss versucht einmal die Kniffe zu ergründen, mit denen den fantastischen Vier die Verlängerung gelang? Viel Spaß und anregende Beschäftigung wünsche ich euch dabei!

(solution)

Und den Vieren gilt mein herzlicher Glückwunsch zu dieser Großtat — und mein ebensolcher Dank, dass sie mir die Ehre zuteilwerden ließen, diese Superaufgabe hier im Blog urzudrucken und damit auf einen sicheren ersten Preis in einem beliebigen Informalturnier zu verzichten. Übrigens soll in der Schwalbe 2022 hierzu ein Aufsatz „aus erster Hand“ erscheinen, auf den ich schon sehr gespannt bin.
Cook: 1. a4 h5 2. a5 h4 3. a6 h3 4. axb7 hxg2 25. h4 d5 6. h5 d4 7. h6 d3 8. h7 dxc2 9. d4 a5 10. Lh6 c1=T 11. e4 Tc5 12. Se2 Th5 13. e5 c5 14. e6 Sc6 15. b8=T a4 16. Tb4 a3 17. Ta4 c4 18. b4 c3 19. b5 Da5 20. b6 g1=T 21. b7 Tg4 22. b8=T c2+ 23. T8b4 Lb7 24. d5 0-0-0 25. exf7 e5 26. d6 Kb8 27. d7 Lc5 28. f8=T Sge7 Tf3 a2 30. Tfa3 Sc8 31. f4 g5 32. f5 Tdg8 33. f6 e4 34. f7 e3 35. f8=T Tg6 36. Tf2 Tf4 37. Dd6+ Ka8 38. Sbc3 Thf8 39. Td1 T8f7 40. h8=T a1=D 41. Te8 c1=D 42. Lf8 g4 43. Sa2 g3 44. Dc7 g2 45. d8=T g1=T 46. T8d6 T1g5 47. Sg3 Dg7 48. Ld3 Ld4 49. 0-0 e2 50. Te5 e1=T 51. Lb1 Sd8 52. T1d3 Lg2 53. Se4 Dc6 54. Sc5 Te3 55. Tc2 Sb6 56. T1f3 Sc4 57. Sb7 Sb2 58. Tbc4 De8 59. Sb4 Te1# (Michail Kosulja)
James Malcom: We have a Christmas miracle: a new move length record! (2021-12-25)
Henrik Juel: Yes indeed
But maybe Mario or some other cook-finder will have the last word in a couple of years... (2021-12-26)
Henrik Juel: The cooking is not very surprising, but the speed of its appearance is (2021-12-31)
A.Buchanan: Was any shorter version of this (but greater than 57.5) sound? (2022-04-21)
more ...
comment
Keywords: Move Length Record, Aristocrat, Promotion (TD x12), Castling, Unique Proof Game, Non-standard material (TTTTTTddtttt), konsekutive Umwandlungen 2 (dd)
Genre: Retro
FEN: k2nqB2/1NQ2rq1/3R2r1/q3R1rr/RNRb1r2/R2R1R2/1nR3b1/1B2r1K1
Input: James Malcom, 2021-12-25
Last update: A.Buchanan, 2022-04-21 more...
84 - P1398383
Aleksandr Pankratiev
4718 Best Problems 101 01/2022
P1398383
(4+5) C+
h#7
1. f5 Lb1 2. f4 gxf4 3. d4 f5 4. d3 f6 5. d2 f7 6. d1=T f8=D 7. Txb1 Da3#
play all play one stop play next play all
Henrik Juel: stipulation should be h#7, not just h#, I expect (2022-01-14)
James Malcom: Fixed. (2022-01-14)
comment
Keywords: Corner mate, Entblockung, konsekutive Umwandlungen 2 (tD), Line opening, Model mate, Promotion (D), under-promotion (t)
Genre: h#
FEN: 8/5p2/8/1p1p4/6p1/1P4P1/B6K/k7
Input: Gunter Jordan, 2022-01-14
Last update: James Malcom, 2022-01-14 more...
85 - P1398704
Edgar D. Holladay
1647 Ideal-Mate Review 19 01-03/1986
P1398704
(2+5)
h=6
1. c1=T a4 2. Th1 a5 3. Kf1 a6 4. Ke1 a7 5. Kd1 a8=D 6. Le1 Dxh1=
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2022-01-28)
comment
Keywords: Antiphönix, Asymmetrical solution, corner to corner (D), Excelsior white, Ideal stalemate, konsekutive Umwandlungen 2 (tD), Miniature, Minimal (B), Oneliner, Symmetrical position, Promotion (D), under-promotion (t), under-promotion key
Genre: Fairies
FEN: 8/8/8/8/8/8/PKpppbk1/8
Input: Gunter Jordan, 2022-01-28
Last update: Gunter Jordan, 2022-01-28 more...
86 - P1398829
Zdravko Maslar
Die Schwalbe 2015
Version
P1398829
(8+7)
h#13
1. Kd7 Lb1 2. Ke6 La2 3. Kf5 Lb1 4. Kg4 La2 5. Kxh5 Lb1 6. Kg4 La2 7. b1=S h5 8. Sa3 Lb1 9. Sxc2 Lxc2 10. Kg5 Lg6 11. hxg6 h7 12. Kh6 Kc2 13. g5 h8=D#
play all play one stop play next play all
Dies ist eine Version zu P1302572.
SCHRECKE: C+, Gustav 4.2a, Brute Force (2022-02-03)
comment
Keywords: Antiphönix, Entblockung, konsekutive Umwandlungen 2 (sD), Model mate, Switchback (L), Selfblock, Tempo Loss, Promotion (D), Promotion in the mating move, under-promotion (s)
Genre: h#
FEN: 2k5/7p/7P/7P/1p5P/1Pp1p3/BpPpP3/3K4
Reprints: A Die Schwalbe 282, p. 673, 12/2016
Input: Gunter Jordan, 2022-02-02
Last update: Gunter Jordan, 2022-02-02 more...
87 - P1399802
Gunter Jordan
9146 Phénix 324 11/2021
P1399802
(3+2) C+
ser-!#7
1. b8=L 2. b7 3. Kb6 4. Ka7 5. Ka8 6. La7 7. b8=L!#
play all play one stop play next play all
Meeraner, Urform, Themafiguren wB/L & wB/L

Erstdarstellung der Meeraner-Urform im Serienzugeigenmatt.
Henrik Juel: Can be tested with Popeye 4.87 also (in 1.9 seconds) (2022-03-15)
comment
Keywords: discovered checkmate, Corner mate, Eigenmatt, konsekutive Umwandlungen 2 (LL), Meerane-Thema, Minimal (l), Model mate, Selfblock, Seriesmover, Symmetrical end position, Umnov, Promotions to bishops, under-promotion (L), under-promotion in mating move, under-promotion key
Genre: Fairies
Computer test: Gustav 4.1.a
FEN: 8/1P6/1Pb5/2K5/4k3/8/8/8
Input: Gunter Jordan, 2022-03-15
Last update: Gunter Jordan, 2022-03-15 more...
88 - P1399880
Anirudh Daga
9191 Phénix 325 12/2021
P1399880
(14+11)
BP in 11.5
1. d4 e5 2. dxe5 Df6 3. exf6 d5 4. fxg7 f5 5. gxh8=T Kf7 6. Dxd5+ Kg7 7. Lh6+ Kxh8 8. e3 f4 9. Lb5 f3 10. Se2 fxe2 11. Kd2 e1=T 12. Kd3
play all play one stop play next play all
Henrik Juel: C++ Euclide 1.01 (2022-03-20)
more ...
comment
Keywords: Excelsior black, Excelsior white, konsekutive Umwandlungen 2 (Tt), Phoenix, Schnoebelen Theme (T), Promotions to rooks, under-promotion (Tt)
Genre: Retro
Computer test: Natch 3.3
FEN: rnb2bnk/ppp4p/7B/1B1Q4/8/3KP3/PPP2PPP/RN2r2R
Input: Gunter Jordan, 2022-03-19
Last update: A.Buchanan, 2022-03-20 more...
89 - P1400010
Lubos Kekely
9164 Phénix 324 11/2021
P1400010
(3+4) C+
ser-s#14
Bicolores
Ohneschach
1. b3 2. bxa4 3. a5 4. a6 5. a7 6. a8=D 7. Dxa3 8. Dh3 9. a4 10. a5 11. a6 12. a7 13. a8=D 14. Da5 Tb1#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (2022-03-25)
Henrik Juel: stipulation ser-s#14 (2022-03-25)
comment
Keywords: konsekutive Umwandlungen 2 (DD), Entblockung, Excelsior white (2-fach), Miniature, Checkless, Rückkehr nach Umwandlung, Seriesmover, Promotion (D), Promotions to queens, Homebase
Genre: Fairies
FEN: 8/8/8/8/pr6/p7/PP6/4K1k1
Input: Gunter Jordan, 2022-03-25
Last update: Gunter Jordan, 2022-03-27 more...
90 - P1401373
Moisej B. Neumann (=Nejman)
4 Leninskije iskry 06/11/1926
P1401373
(6+6)
#2
1. e8=D? Lf4!

1. d8=S! droht 2. e8=S#
1. ... Sxe7 2. Le5#
play all play one stop play next play all
more ...
comment
Keywords: under-promotion (S), Promotions to Knights, Selfblock, Model mate, konsekutive Umwandlungen 2 (SS)
Genre: 2#
Computer test: SCHRECKE: C+, popeye 4.87 (2022-05-19)
FEN: 6nr/3PP2p/3B1k1b/2p4P/3P2K1/8/8/8
Input: Mario Richter, 2022-05-19
Last update: Erich Bartel, 2022-05-19 more...
91 - P1401782
Michel Caillaud
MatPlus.net Forum 10/06/2022
P1401782
(13+16) cooked
ser-h=35
1. axb6 2. Txa6 3. Txa5 4. Ta4 5. Txc4 6. Txd4 7. Txd5 8. Txc5 9. Txc6 10. Te6 11. c6 12. d5 13. d4 14. d3 15. d2 16. d1=T 17. Dd2 18. Dh6 19. Td8 20. Sd7 21. c5 22. c4 23. c3 24. c2 25. c1=L 26. Lg5 27. Lf6 28. g5 29. Dg7 30. h6 31. Th7 32. Dh8 33. L6g7 34. Tg6 35. f6 e6=
play all play one stop play next play all
Cook: 1. axb6 2. Txa6 3. Txa5 4. Ta4 5. Txc4 6. Txc5 7. Txc6 8. Te6 9. c5 10. c4 11. c3 12. c2 13. c1=L 14. Lh6 15. g5 16. Lfg7 17. Sf6 18. 0-0 19. d6 20. Dd7 21. Td8 22. De8 23. Kf8 24. Sg8 25. Sd7 26. Tg6 27. f6 28. Lh8 29. 29. Df7 30. Ke8 31. Tg7 32. Df8 33. Tf7 34. L6g7 35. h6 e6=
Für die kürzere Version (P1409325) ohne zusätzliche weiße Steine wurde noch keine Inkorrektheit gefunden.
Michel Caillaud: cooked by Arno Tüngler :
1.S×ç6 2.Sb4 3.S×a6 4.ç6 5.Sç7 6.ç×d5 7.d×ç4 8.ç3 9.ç2 10.ç1=L 11.Lb2 12.a×b6 13.T×a5 14.Ta4 15.T×d4 16.Td6 17.L×é5 18.g5 19.Lég7 20.Lh6 21.Tg6 22.f6 23.Lfg7 24.Kf7 25.Df8 26.Ké8 27.Kd8 28.Dé8 29.Lf8 30.Tg7 31.Tf7 32.Lfg7 33.Df8 34.Ké8 35.Sé6 S×é6=
or
1.a×b6 2.T×a6 3.T×a5 4.Ta4 5.T×ç4 6.T×ç5 7.T×ç6 8.Té6 9.ç5 10.ç4 11.ç3 12.ç2 13.ç1=L 14.Lh6 15.g5 16.Lfg7 17.Sf6 18.0-0 19.d6 20.Dd7 21.Td8 22.Dé8 23.Kf8 24.Sg8 25.Sd7 26.Tg6 27.f6 28.Lh8 29.Kf7 30.Df8 31.Ké8 32.Tg7 33.Tf7 34.L6g7 35.h6 é6= (2022-08-02)
Anton Baumann: Mit der korrigierten Stellung geht die 1. NL nicht: 35.Se6 Sxe6??
Bei der 2. NL geht 29.Kf7 nicht, aber 29.Df7 30.Ke8 31.Tg7 32.Df8 33.Tf7 34.L6g7 35.h6 e6 = (mit ZU) (2023-05-05)
Olaf Jenkner: Die ursprüngliche Version hatte getauschte Steine auf c4 und c5 und einen Turm auf d5.
Dazu wurden zwei Nebenlösungen gefunden, siehe Post von M. Caillaud,
Die vorliegende Version hat weiterhin die zweite Nebenlösung mit Zugumstellung in den
Zügen 29 bis 32. (2023-05-05)
more ...
comment
Keywords: Homebase (s), Seriesmover, Capture key, konsekutive Umwandlungen 2 (tl), under-promotion (tl), pin-stalemate, Pawn mate (-patt), blocking of a piece
Genre: Fairies
FEN: rnbqkbnr/pppppppp/PPN5/BBPQPK1P/2NP2P1/8/8/8
Input: Olaf Jenkner, 2022-06-11
Last update: Olaf Jenkner, 2023-05-05 more...
92 - P1403108
Mykola R. Vasyuchko
Mykola V. Cherniavskyi

18799 Die Schwalbe 312-1, p. 327, 12/2021
P1403108
(2+8)
h#6
b) sKa8->b8
a) 1. Lb3 cxb3 2. Lg1 b4 3. h1=T b5 4. Th2 bxc6 5. Ta2 c7 6. Ta7 c8=D#
b) 1. Dd3 cxd3 2. Ld1 d4 3. c2 d5 4. c1=T d6 5. Tb1 d7 6. Tb7 d8=D#
play all play one stop play next play all
18799 (Mykola Wasjutschko & Mykola Tschernjawskij). a) 1.Lb3 c:b3 2.Lg1 b4 3.h1=T b5 4.Th2 b:c6 5.Ta2 c7 6.Ta7 c8=D#(MM), b) 1.Dd3 c:d3 2.Ld1 d4 3.c2 d5 4.c1=T d6 5.Tb1 d7 6.Tb7 d8=D#(MM). „Zwei Exzelsiore, schwarzer Schachschutz, Turmunterverwandlungen und Selbstblocks. Auch die Echomatts sind verbindende Elemente dieses vorzüglichen Zwillings.“ (GJ) So richtig als Echo würde ich die Matts wegen der verschiedenen Blockzahlen nicht ansehen, aber sei es drum. KHS sieht „Mustermatts, Exzelsiormärsche, schwarze Opfer, schwarze Turmverwandlungen. Die umgewandelten schwarzen Türme blocken je ein Fluchtfeld. Alles ist so ähnlich schon dagewesen (in meiner dunklen Erinnerung). MRit wird sicher wieder genügend Vorgänger herausfischen.“ Auch HJä vertraut ihm: „Exzelsiormärsche und -matts des weißen Bauern und schwarze Umwandlungen für je einen notwendigen Turmblock in sparsamer Konstruktion; dass sich bei diesem populären Thema wohl einige Vergleichsstücke zitieren lassen werden, wird MRit vermutlich noch belegen“. Der äußert sich allerdings nicht dazu, sondern schreibt lediglich: „Wandert der Bauer links herum, wird der weiße König auf der rechten Seite gegen die Umwandlung des Blockturms abgeschirmt und umgekehrt. Dabei beeindrucktmich besonders die unscheinbare Zwillingsbildung“.
Henrik Juel: C+ Popeye 4.61 also (2022-07-27)
comment
Keywords: Minimal (B), Excelsior white, Promotion in the mating move, under-promotion (t), Promotion (D), konsekutive Umwandlungen 2 (tD), Corner mate (in a), Model mate, Selfblock, Echo, Check Protection, Line closing
Genre: h#
Computer test: Popeye WINDOWS98-32Bit-Version 3.77 (8192KB)
FEN: k7/b7/2p5/3q4/b6p/2p5/2P4p/4K3
Input: Felber, Volker, 2022-07-27
Last update: Gunter Jordan, 2022-07-27 more...
93 - P1404352
Torsten Linss
Z685 Probleemblad 3 07/2022
P1404352
(4+2) C+
r#9
1. g8=L+ Ka1 2. Ld4 Kb1 3. Kb3 Ka1 4. Lc4 Kb1 5. Kc3 Ka1 6. Kd2 Kb1 7. Kd1 Ka1 8. Sc1 Kb1 9. Le2 bxc1=D#
1. ... Kb1 2. Lb3 Ka1 3. Ld4 Kb1 4. Ka3 Ka1 5. Sc5 Kb1 6. Sa4 Ka1 7. Lc3,Le3+ Kb1 8. Ld2 Ka1 9. Lb4 b1=S#
play all play one stop play next play all
more ...
comment
Keywords: Miniature, Minimal (b), under-promotion key, Checking key, Promotion in the mating move, under-promotion in mating move, konsekutive Umwandlungen 2 (Ld,Ls)
Genre: r#
Computer test: V. Kotesovec: Alybadix
FEN: 8/B5P1/8/8/K7/3N4/kp6/8
Input: Rainer Staudte, 2022-09-15
Last update: Gunter Jordan, 2022-09-15 more...
94 - P1404477
Baldur Kozdon
18837 Die Schwalbe 313, p. 447, 02/2022
P1404477
(4+11) C+
#10
1. Te7+! Kb8 2. La8 h1=D 3. Lxh1 h2 4. La8 h1=D 5. Lxh1 Lb1 6. La8 Le4 7. Lxe4 ... 8. La8 ... 9. Sc6+ Kc8 10. Lb7#
9. ... Kxa8 10. Ta7#
play all play one stop play next play all
18837 (Baldur Kozdon). 1.Te7+! Kb8 2.La8 [3.Sc6+ K:a8/Kc8 4.Ta7/L:b7#] h1D. Da ist sie, die schwarze Dame! :-) 3.L:h1 h2 4.La8 h1D 5.L:h1 Lb1 6.La8 Le4 7.L:e4  8.La8  9.Sc6+ Kc8/K:a8 10.Lb7/Ta7#. „Der vergebliche Widerstand von Schwarz steigert nur den Appetit des weißen Läufers.“ (JA) „Der weiße Läufer ‚rennt‘ mehrmals von h1 nach a8 hin und zurück. Das ist schon ‚witzig‘.“ (KHS) Andere sprachen hingegen von langweiligem Hinauszögern des Drohmatts. Vielleicht können wir uns auf folgenden Kompromiss einigen?: „Das Schema ist nicht schlecht, aber dreifache Schlägerei auf der langen Diagonale ist nicht gerade inhaltlicher und ästhetischer Glanz.“ (FRd)
more ...
comment
Keywords: corner to corner (L 5-fach), Promotion (d), Promotions to queens, konsekutive Umwandlungen 2 (dd), Phoenix, Antiphönix, Model mate, Corner mate, Checking key
Genre: n#
Computer test: A. Baumann: Gustav 4.2a
FEN: k6n/1R3p2/4p1p1/Np6/2p5/1p5p/b4K1p/7B
Input: Felber, Volker, 2022-09-19
Last update: Dieter Berlin, 2024-03-18 more...
95 - P1405805
Michael Schreckenbach
2313 Gaudium 256 31/03/2022
nach Manfred Zucker
P1405805
(7+2) C+
s#10
1. Td8! Kh7 2. f8=S+ Kh8 3. Sd7 Kh7 4. Sf6+ Kh8 5. Sg4 Kh7 6. e8=S La2,L~ 7. Sgf6+ Kh8 8. Sd6+ Lg8 9. Sg4 Kh7 10. Sf7 Lxf7#
6. ... Kh8? 7. Sd6 Kh7 8. Sf7 Lxf7#
play all play one stop play next play all
1.Tb8,Tc8? ... 6. ... Le6!
SCHRECKE: Zucker: P1228135 (2023-07-07)
comment
Keywords: Option key, konsekutive Umwandlungen 2 (SS), Minimal (l), Switchback (l), Selfblock, Promotions to Knights, under-promotion
Genre: s#
Computer test: Gustav 4.1 a
FEN: 4R1bk/4PP2/7P/6BK/7P/8/8/8
Input: Gunter Jordan, 2022-11-13
Last update: Gunter Jordan, 2022-11-13 more...
96 - P1406818
Jozef Lozek
12577 feenschach 246 07-09/2021
nach Claus Grupen und Bernd Ellinghoven
P1406818
(2+4) C+
h#6
2.1...
1. Sc4 dxc4 2. e3 c5 3. e2 c6 4. e1=T c7 5. Te2 c8=D 6. Ta2 Dc1#
1. d4 dxe4 2. Sf5+ exf5 3. d3 f6 4. d2 f7 5. d1=T f8=D 6. Tb1 Da3#
play all play one stop play next play all
Yuri Bilokin: Compare P0559260 P0559262 P0553653 (2022-12-26)
comment
Keywords: Miniature, Minimal (B), konsekutive Umwandlungen 2 (tD), Model mate, Echo, Corner mate, Selfblock
Genre: h#
FEN: 8/6K1/8/3p4/4p3/3Pn3/8/k7
Input: Gunter Jordan, 2022-12-24
Last update: Gunter Jordan, 2023-12-15 more...
97 - 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...
98 - P1407307
Viktor Zheltukhov
Valery Ivanov

13018 Seven Chess Notes 304 01/2023
P1407307
(4+3) C+
s#9
1. Dd6+! Ke8 2. b8=D+ Kf7 3. g8=L+ Kg7 4. Ddf8+ Kh8 5. Dh6+ Lh7 6. Df6+ Dg7 7. La2+ Lg8 8. Dh2+ Lh7 9. Dh1 Dxf6#
play all play one stop play next play all
SCHRECKE: C+, Gustav 4.2b, Brute Force (2023-01-18)
comment
Keywords: konsekutive Umwandlungen 2 (DL), Miniature
Genre: s#
FEN: 3k4/1P4P1/6b1/8/8/8/6qQ/K7
Input: Rainer Staudte, 2023-01-17
Last update: Marcin Banaszek, 2023-01-27 more...
99 - 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...
100 - 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...
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