Die Schwalbe

62 problem(s) found in 1594 milliseconds (displaying 62 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND S='Problemist Ukrainy'] [download as LaTeX]

1 - P1078430
Wladyslaw Rosolak
Problemist of Ukraine 2006
Michail Gerschinski 70 JT
1. ehrende Erwähnung
P1078430
(4+13)
h#4
Zeroposition
klären Quelle, Zwillingsbildung
Anton Baumann: Korrektur Diagramm: b6=sL, sBf6 nach f5
Zwillingsbildung aus Zeroposition: a)sSg1 nach b7 b)wSb5 nach g3
Lösung: a) 1.Dc7 Kh1 2.Kxb5 e4 3.Ld5 c4+ 4.Kc6 exd5#
b) 1.hxg3+ Kxg3 2.Sf4 Kxf4 3.Kd5 Kxf5 4.Lc4 e4#
Computerprüfung: C+ Gustav 4.1d (2021-05-22)
comment

Genre: h#
FEN: 8/3r4/1pqp1p2/1Np5/2k3pp/2P4n/b1r1P2K/6n1
Input: hpr, 2008-09-28
Last update: Marcin Banaszek, 2019-01-30 more...
2 - P1087373
Valery Semenenko
Problemist of Ukraine 2006
Michail Gerschinski 70 JT
Spezielle ehrende Erwähnung
P1087373
(3+4)
h#4
2.1...
1) 1. Ke5 g6 2. Tf4 g7 3. Tb4 g8=D 4. Td4 De6#
2) 1. Kf5 d6 2. Tg4 d7 3. Tb4 d8=D 4. Te4 Df6#
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Interchange of functions between 2 white pieces; Promotion, Chameleon-echo mates, Model mates.
Anton Baumann: C+ Gustav 4.1d (2021-05-21)
comment

Genre: h#
FEN: 8/8/8/K2P2P1/1r2k3/8/8/1r1n4
Input: GüBü, 2009-06-08
Last update: Marcin Banaszek, 2019-01-30 more...
3 - P1089369
Mihajlo Milanovic
439 Problemist of Ukraine 01-03/2008
P1089369
(3+5) C+
h#2
b) sTb8 nach b7
a) 1. Th5 Tf8 2. Lg5 Le4#
b) 1. Lh4 Le4 2. Tg5 Tf8#
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Rolf Wiehagen: Vergleiche P0548148. (2021-01-18)
comment

Genre: h#
Computer test: Popeye WINDOWS-32Bit V4.37 (298036 KB)
FEN: kr1b4/p6B/8/3r4/8/8/8/K4R2
Input: Frank Müller, 2009-07-29
Last update: Frank Müller, 2009-07-29 more...
4 - P1091100
Aleksey Khanyan
SuperProblem (Website) 13/04/2009
P1091100
(2+16)
#77
1. e8=D+ Kd1 2. Dxh5+ Ke1 3. De8+ Kd1 4. Dxa4 Db1 5. Dg4+ Ke1 6. De4+ Kd1 7. Df3+ Kc1 8. Df4 d5 9. De3 Kd1 10. Df3+ Kc1 11. Df4 d4 12. Dg5 Kd1 13. Dg4+ Ke1 14. De4+ Kd1 15. Df3+ Kc1 16. Df4 a6 17. Dg5 Kd1 18. Dg4+ Ke1 19. De4+ Kd1 20. Df3+ Kc1 21. Df4 a5 22. Dg5 Kd1 23. Dg4+ Ke1 24. De4+ Kd1 25. Df3+ Kc1 26. Df4 a4 27. Dg5 Kd1 28. Dg4+ Ke1 29. De4+ Kd1 30. Df3+ Kc1 31. Df4 a3 32. Dg5 Kd1 33. Dg4+ Ke1 34. De4+ Kd1 35. Df3+ Kc1 36. Df4 b6 37. Dg5 Kd1 38. Dg4+ Ke1 39. De4+ Kd1 40. Df3+ Kc1 41. Df4 b5 42. Dg5 Kd1 43. Dg4+ Ke1 44. De4+ Kd1 45. Df3+ Kc1 46. Df4 b4 47. Dg5 Kd1 48. Dg4+ Ke1 49. De4+ Kd1 50. Df3+ Kc1 51. Df4 c6 52. Dg5 Kd1 53. Dg4+ Ke1 54. De4+ Kd1 55. Df3+ Kc1 56. Df4 c5 57. Dg5 Kd1 58. Dg4+ Ke1 59. De4+ Kd1 60. Df3+ Kc1 61. Df4 c4 62. Dg5 Kd1 63. Dg4+ Ke1 64. De4+ Kd1 65. Df3+ Kc1 66. Df4 c3 67. Dg5 Kd1 68. Dg4+ Ke1 69. De4+ Kd1 70. Df3+ Kc1 71. Df4 d3 72. De3 Kd1 73. Df3+ Kc1 74. Df4 Lg1 75. Kxg1 g2 76. Kxg2 Kd1 77. Df1#
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Original Source: http://superproblem.ru/archive/probl/N/Khanyan-77x-09.gif
Olaf Jenkner: Wirklich C+ ? (2010-08-31)
Frank Müller: Die Quelle behauptet dies. (2010-11-17)
James Malcom: The source is wrong. This was published earlier on SuperProblem.ru, which I've now corrected. (2021-02-13)
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comment
Keywords: Minimal
Genre: n#
FEN: 8/ppp1P3/3p4/7n/r7/1p4p1/brpp2Kb/n1q1k3
Reprints: C11 Problemist of Ukraine 04/06/2009
Input: Frank Müller, 2009-09-13
Last update: James Malcom, 2021-02-13 more...
5 - P1098760
Grigory Popov
(1c) Problemist of Ukraine 04-06/2009
2. Preis
P1098760
(2+16)
#18
1. b7+ Ka7 2. b8=D+ Ka6 3. Dxc8+ Kb5 4. Db7+ Ka5 5. Dxd5+ Ka6 6. Da8+ Kb5 7. De8+ Ka5! 8. De5+ Ka6 9. Df6+ Kb5 10. Df5+ Lc5! 11. Dd7+ Ka5 12. Dd5 Th5 13. Dxh5 Kb5 14. De8+ Ka5 15. Da8+ Kb5 16. Dc6+ Ka5 17. Dxc5+ Ka6 18. Db6#
3. ... Ka4 4. Da8+ Kb5 5. Dxd5+ usw.
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Anton Baumann: C+ Gustav 4.1d (2020-12-26)
comment
Keywords: Minimal
Genre: n#
FEN: k1n4n/2K5/1P5p/3r4/ppp5/1q1p3r/b2ppb1p/8
Reprints: 763 Pat a Mat 12/2011
Input: Frank Müller, 2010-02-03
Last update: Frank Müller, 2011-12-31 more...
6 - P1184327
Ivan Bryukhanov
S66 Problemist of Ukraine 04-06/2010
P1184327
(3+3) C+
s#5
b) wTb2
a) 1. Lc4+! Ka4 2. Db5+ Ka3 3. Da5+ Sa4 4. La2 b3 5. Lb1 b2#
b) 1. Ld3+! Ka4 2. Tb3 Kxb3 3. Lc2+ Ka3 4. Dc4 b3 5. Lb1 b2#
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comment
Keywords: Miniature
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/8/8/kBQ5/1p6/8/1n6/K7
Input: Frank Müller, 2011-01-07
Last update: Marcin Banaszek, 2021-04-05 more...
7 - P1203063
Andrey Selivanov
Problemist of Ukraine S2 2008
Waleri Kopyl 50 JT
3. Preis
P1203063
(5+2) C+
s#7
1. Kh7! Kf7 2. Thf8+ Ke6 3. Tf5 Dxc4 4. Te5+ Kf7 5. Tf8+ Kxf8 6. Df6+ Df7+ 7. Dg7+ Dxg7#
1. ... Dxc4 2. The8+ Kf7 3. Dh5+ Kf6 4. Td6+ De6 5. Kh6 Dxd6 6. Dg5+ Kf7+ 7. Dg6+ Dxg6#
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Anton Baumann: C+ Gustav 4.1d (2020-12-11)
comment
Keywords: Aristocrat, Echo, Cross check
Genre: s#
FEN: 3R2KR/8/4k3/3q2Q1/2B5/8/8/8
Input: Frank Müller, 2011-09-22
Last update: Marcin Banaszek, 2020-12-14 more...
8 - P1203068
Gennady Koziura
Problemist of Ukraine S2 2008
Waleri Kopyl 50 JT
5. ehrende Erwähnung
P1203068
(11+5) C+
s#6
1. Ld4!
1. ... Txa5 2. T7g5+ Kh7 3. Ld3+ Tf5 4. Kh5 a5 5. h4 a4 6. Dg6+ fxg6#
1. ... Txb4 2. Th7+ Kxh7 3. Df5+ Kh6 4. Le3+ Tf4 5. Ld3 f6 6. Dg5+ fxg5#
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comment
Keywords: Chameleonecho
Genre: s#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-02-03
FEN: 7k/5pR1/p4Q2/P7/rP4RK/p3B1NP/P7/5B2
Input: Frank Müller, 2011-09-22
Last update: Erich Bartel, 2021-02-04 more...
9 - P1227705
Steven B. Dowd
S146 Problemist of Ukraine 10-12/2011
P1227705
(5+2) C+
s#10
b) alles 1 nach links
a) 1. Te8+ Kf6 2. Df3+ Kg5 3. d8=L+ Te7 4. Th8 Kh4 5. Kg8 Kg5 6. Lh5 Kh4 7. Lg4 Kg5 8. Th5+ Kg6 9. Dc6+ Te6 10. De8+ Txe8#
b) 1. Td8+ Ke6 2. c8=D+ Td7 3. Kh7 Kf7 4. Tf8+ Ke6 5. Te8 Kf7 6. Dh5 Ke6 7. Db5 Kf7 8. Db3+ Td5 9. Df3+ Tf5 10. Dh5+ Txh5#
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comment
Keywords: Echo, Umwandlungswechsel
Genre: s#
Computer test: SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force (2020-09-24)
FEN: 7R/1r1PkB1K/8/3Q4/8/8/8/8
Input: Frank Müller, 2011-12-23
Last update: Erich Bartel, 2020-09-24 more...
10 - P1238751
Roman Zalokotsky
Valentin V. Khupchenko

S162 Problemist of Ukraine 32 04-06/2012
P1238751
(7+6)
s#12
1. Da4+ Kb8 2. Da7+ Kc8 3. Db7+ Kd8 4. Dxc7+ Ke8 5. Dd7+ Kf8 6. Lg7+ Kg8 7. Df7+ Kh7 8. Lxd4+ Kh6 9. Dg7+ Kh5 10. Dg6+ Kh4 11. Lf6+ Kh3 12. Dg2+ fxg2#
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Anton Baumann: Doppelveröffentlichung (identische Lösung) P1236289 (2021-02-15)
Anton Baumann: wollte schreiben: 'fast identische Lösung' (die beiden Aufgaben unterscheiden sich nur durch den 4.Zug von Weiss) (2021-02-15)
comment
Keywords: Königslenkung
Genre: s#
FEN: k7/2p5/1PPpP3/2b1BP2/3p4/5p2/8/3Q3K
Input: Frank Müller, 2012-05-11
Last update: Olaf Jenkner, 2012-05-11 more...
11 - P1252351
Olaf Jenkner
S178 Problemist of Ukraine 34 10-12/2012
P1252351
(5+2) C+
s#11
1. h4! Ka3 2. h5 Kb3 3. h6 Ka3 4. h7 Kb3 5. h8=D Ka3 6. Dh3 Kb3 7. Lc4+ Kc2 8. Dd3+ Kc1 9. Lc3 dxc3 10. De3+ Kc2 11. La2 cxb2#
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Anton Baumann: C+ Gustav 4.1d (2021-05-10)
comment
Keywords: Excelsior, Promotion, Minimal, Miniature
Genre: s#
Computer test: Gustav 4.1d
FEN: 8/8/8/8/3p4/1k1B4/1N5P/K3B3
Input: Frank Müller, 2012-10-27
Last update: Marcin Banaszek, 2021-05-10 more...
12 - P1280339
Steven B. Dowd
S199 Problemist of Ukraine (38) 10-12/2013
P1280339
(9+2) C+
s#7*
* 1. ... Lxd4#
1. Ta7 Kxa7 2. Sa8 Lb6 3. Da6+ Kb8 4. Le5+ Lc7 5. Sb6 Ld6 6. Da8+ Kc7 7. a5 Lxe5#
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Henrik Juel: The relocation is not necessarily systematic, it is the system itself that is relocated. Maybe 'Configuration shift' is more descriptive. Here the configuration Kb6, Lc5, Ld4 is shifted towards NE to c7, d6, e5 (2013-11-12)
SBD: Velimirovic and Valtonen (pg. 417) use the term "System, Shift of" to describe this keyword. (2013-11-13)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-20)
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Keywords: Systemverlagerung
Genre: s#
FEN: R1Q3BK/2N4P/1k6/1Pb5/P2B4/8/8/8
Input: Frank Müller, 2013-11-11
Last update: Marcin Banaszek, 2020-12-21 more...
13 - P1280343
Sergiy Borodavkin
S203 Problemist of Ukraine (38) 10-12/2013
P1280343
(5+4) C+
s#11
1. g6 Kc3 2. Db5 d3 3. Te7 Kd4 4. g7 Kc3 5. g8=D Kd4 6. Dg3 Kc3 7. Te2 Kd4 8. De3+ Kc3 9. Da4 Kb2 10. Db6+ Kc3 11. Dc2+ dxc2#
1. ... Ke3 2. Df5 d3 3. Tc7 Kd4 4. g7 Ke3 5. g8=D Kd4 6. Db3 Ke3 7. Tc2 Kd4 8. Dc3+ Ke3 9. Dg4 Kf2 10. Df6+ Ke3 11. De2+ dxe2#
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Anton Baumann: C+ Gustav 4.1d (2021-02-08)
comment

Genre: s#
FEN: 8/6R1/7p/3Q2PP/3p4/3k4/3p4/3K4
Input: Frank Müller, 2013-11-11
Last update: James Malcom, 2021-02-08 more...
14 - P1297894
Ivan Bryukhanov
S241 Problemist of Ukraine (43) 01-03/2015
P1297894
(4+3) C+
s#7
b) -sSa4 = s#8
a) 1. e8=D+ Kc7 2. Lb8+ Kb6 3. De6+ Kc5 4. Ded5+ Kb4 5. D5c4+ Ka5 6. Da6+ Kb4 7. Db6+ Sxb6#
b) 1. e8=D+ Kc7 2. Dc4+ Kd6 3. Lc5+ Kc7 4. Le7 Kb6 5. Ld8+ Tc7 6. Dd5 Ka6 7. De6+ Tc6 8. Dc8+ Txc8#
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SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force (2020-10-10)
comment

Genre: s#
FEN: K1k5/B3P2r/8/8/n7/3Q4/8/8
Input: Frank Müller, 2015-02-21
Last update: Marcin Banaszek, 2020-10-12 more...
15 - P1311477
Wiktor I. Schum
S266 Problemist of Ukraine (46) 10-12/2015
P1311477
(8+6) C+
s#9
1. Dc7 Ke8 2. b4 Kf8 3. b5 Ke8 4. b6 Kf8 5. b7 Ke8 6. b8=S Kf8 7. Sd7+ Ke8 8. Dc6 Kd8 9. Sf8 Sf6#
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comment
Keywords: Excelsior (S), Obtrusive material (h6)
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 5knR/3Qp1pK/4P1Pb/3P2p1/6P1/8/1P6/8
Input: Frank Müller, 2015-11-01
Last update: James Malcom, 2020-09-28 more...
16 - P1316340
Mykhailo Myshko
Sergiy Borodavkin

S271 Problemist of Ukraine (47) 01-03/2016
Lob
P1316340
(7+5) C+
s#7
1. Sf4 gxf4 2. Dxf4+ Tg5 3. Dh2+ Th5 4. g5+ Kxg5 5. Sf7+ Kf6 6. Dd6+ Kxf7 7. Lg6+ hxg6
1. ... b2 2. Sg6 hxg6 3. f4 gxf4 4. Dxf4+ g5 5. Sf7+ Txf7 6. Dd6+ Tf6 7. Df8+ Txf8#
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SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-18)
comment

Genre: s#
FEN: 5Q1K/6rp/3NN2k/6p1/6P1/1p3P2/8/1B6
Input: Frank Müller, 2016-01-29
Last update: Marcin Banaszek, 2020-12-21 more...
17 - P1316345
Mykhailo Myshko
S276 Problemist of Ukraine (47) 01-03/2016
ehrende Erwähnung
P1316345
(10+4) C+
s#8
1. Ld2? e2!
1. Td2! exd2 2. Sc7+ Kxd6 3. La3+ Kc6 4. Sa8+ Tc7 5. Tc5+ Kd6 6. Da6+ Tc6 7. Tf5+ Ke6 8. Dc8+ Txc8#
1. ... e2 2. Txe2+ Kxd6 3. Td2+ Ke6 4. Tc2 Kd6 5. Db8+ Ke6 6. Tc6+ Td6 7. La3 Txc6 8. Dc8+ Txc8#
5. ... Tc7 6. La3+ Ke6 7. Tc6+ Txc6 8. Dc8+ Txc8#
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Anton Baumann: C+ Gustav 4.1d (2020-11-15)
comment

Genre: s#
FEN: 2Q1K3/3r4/N2Pk3/5Rp1/6P1/4p1P1/8/2BR3N
Input: Frank Müller, 2016-01-29
Last update: Marcin Banaszek, 2020-11-18 more...
18 - P1337141
Mykola Parkhomenko
S302 Problemist of Ukraine (51) 01-03/2017
P1337141
(5+3) C+
s#7
1. Te5+ Kf7 2. Sg5+ Txg5 3. Tf6+ Kxf6 4. Dd6+ Kf7 5. De6+ Kf8 6. Df6+ Sf7 7. Dg7+ Txg7#
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comment
Keywords: Aristocrat
Genre: s#
Computer test: Gustav 4.1d, Brute Force
FEN: 5k1n/4R2K/6R1/5r2/1Q2N3/8/8/8
Input: Frank Müller, 2017-08-06
Last update: Alfred Pfeiffer, 2020-09-26 more...
19 - P1337142
Wiktor I. Schum
S303 Problemist of Ukraine (51) 01-03/2017
P1337142
(7+2) C+
s#7
1. c8=S Dxf3 2. Lf2+ Kh2 3. Dg1+ Kh3 4. Dh1+ Kg4 5. Dh4+ Kf5 6. Sd6+ Kg6 7. f8=S+ Dxf8#
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Henrik Juel: Popeye 4.61 w. opt nichtt 0 1 found no flaws (2017-08-06)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-18)
comment
Keywords: Promotions (konsekutiv SS)
Genre: s#
FEN: 7K/2P2P2/8/8/8/4RB2/6q1/5QBk
Input: Frank Müller, 2017-08-06
Last update: Marcin Banaszek, 2020-12-21 more...
20 - P1337147
Mykola Parkhomenko
S308 Problemist of Ukraine (51) 01-03/2017
P1337147
(7+7) C+
s#12
1. Da4+ Kb8 2. Da7+ Kxc8 3. Db7+ Kd8 4. Dc7+ Ke8 5. Dd7+ Kf8 6. De7+ Kg8 7. Df7+ Kh8 8. Lxb2+ c3 9. Lxc3+ d4 10. Lxd4+ e5 11. Lxe5+ Dxe5 12. Dg7+ Dxg7#
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Anton Baumann: C+ Gustav 4.1d (2021-02-22)
comment
Keywords: corner to corner (k-a8h8)
Genre: s#
FEN: k1N5/8/2PPp1pK/3p2N1/2p5/B7/1p6/q2Q4
Input: Frank Müller, 2017-08-06
Last update: James Malcom, 2021-02-23 more...
21 - P1340087
Valery Barsukov
S313 Problemist of Ukraine (52) 04-06/2017
P1340087
(10+7) C+
s#9
1. Ld8+ Kd6 2. De7+ Kc6 3. Df6+ Kb5 4. Th5+ Sf5 5. De5+ Kc6 6. Sd4+ Sxd4 7. De8+ Kd6 8. e5+ Kd5 9. Db5+ Sxb5#
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more ...
comment

Genre: s#
Computer test: Gustav 4.1d
FEN: 2B1Q3/R3Bp2/7n/4k3/pP2P3/ppKPp3/4N2R/8
Input: Frank Müller, 2017-09-24
Last update: Arnold Beine, 2021-04-03 more...
22 - P1340090
Roman Yanko
S316 Problemist of Ukraine (52) 04-06/2017
P1340090
(10+7) C+
s#11
1. Sc8 Kd5 2. Sb6+ Kc5 3. Sa8 Kd5 4. Sc7+ Kc5 5. Sxe6+ Kd5 6. Sc7+ Kc5 7. Lf7 e6 8. Sxe6+ Kd5 9. Sc7+ Kc5 10. Sd5 cxd5 11. Le8 d4#
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Anton Baumann: C+ Gustav 4.1d (2021-02-12)
comment

Genre: s#
FEN: 6B1/N3p3/2p1p3/P1k1Pp2/P1p2P2/1pK2P2/1P1P4/8
Input: Frank Müller, 2017-09-24
Last update: James Malcom, 2021-02-12 more...
23 - P1361750
Viktor Zheltukhov
Valery Kopyl

S224 Problemist of Ukraine 41 07-09/2014
P1361750
(12+2) C+
s#10
1. Kb7-a8! Lb1-a2 2. Sc5-e6+ La2xe6 3. Dh5-h8+ Kg7-f7 4. d7-d8=S+ Kf7-e7 5. Dh8-f6+ Ke7-e8 6. La6-b5+ Le6-d7 7. Sd8-c6 Ld7-c8 8. Td2-d7+ Ke8xd7 9. Sc6-a7 Kd7-c7 10. Tb8-b7+ Lc8xb7#
1. ... Lb1xc2 2. Dh5-h8+ Kg7-f7 3. d7-d8=S+ Kf7-e7 4. Sh4-f5+ Lc2xf5 5. Dh8-f6+ Ke7-e8 6. La6-b5+ Lf5-d7 7. Sd8-c6 Ld7-c8 8. Sc5-d3 Ke8-d7 9. Sc6-a7 Kd7-c7 10. Tb8-b7+ Lc8xb7#
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Anton Baumann: C+ Gustav 4.1d (2021-01-22)
comment
Keywords: under-promotion (S), Minimal
Genre: s#
Computer test: Gustav 4.1d
FEN: 1R6/1K1P2k1/B7/2N3PQ/7N/8/1PPRP3/1b6
Input: Marcin Banaszek, 2019-02-28
Last update: Marcin Banaszek, 2021-01-24 more...
24 - P1373752
Valery Gorbunov
Problemist of Ukraine Website 03/2020
Spezialpreis
Mychajlo Myschko MT
Sektion S#7-10
P1373752
(10+4)
s#10
1. f8=L! Kb2 2. Lhg7+! Kc2 3. Sxh4 Kd2,Lb1 4. Sf3+ Kc2,La2 5. Kg8 Lb1 6. Th8 La2 7. Sf6 Kc3,Kb2,Lb1 8. Sh7+ Kc2,La2 9. Lxb3+ Lxb3+ 10. Dc4+ Lxc4#
9. ... Kxb3 10. Da4+ Kxa4#
1. ... Lb1 2. Lfg7+! h3 3. gxh3 La2 4. Sfe7 Lb1 5. Tf8 La2 6. Th8 Lb1 7. Sg8 La2 8. Ta1! Lb1 9. Lxb3+ Kxb3+ 10. Dd3+ Lxd3#
1. ... h3 2. Lfg7! hxg2 3. Th2! Lb1 4. Te1! La2 5. Df1! Lb1 6. Te8 La2 7. Th8,Sfe7 Lb1 8. Sfe7,Th8 La2 9. Sg8 Lb1 10. Dd1+ Kxd1#
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Anton Baumann: viele Duale:
1. ... Kb2 2.Lhg7+ Kc2 3.Sxh4 Lb1 4.Kg8 La2 5.Sf3 ...
1. ... Lb1 2.Lfg7 La2 3.Txh4,Sfe7 Lb1 4.Sfe7,Txh4 ...
1. ... h3 2.Lfg7 h2 3.Te1,Tf3 ... (2020-12-14)
comment
Keywords: under-promotion key (L)
Genre: s#
FEN: 8/5P1K/Q6B/3N1N2/B6p/1p6/b1k3P1/5R1R
Input: Marcin Banaszek, 2020-03-23
Last update: Alfred Pfeiffer, 2020-03-24 more...
25 - P1380329
Stanislaw E. Bogdanowitsch
Problemist of Ukraine 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
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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...
26 - P1380875
Luis Gomez Palazon
Miguel Uris

Problemist of Ukraine 66 10-12/2020
Spezialpreis
Stanislaw Kirilitschenko MT
P1380875
(6+1) C+
#2
b) De5->g7
a) 1. Lg4! Kxg4 2. Se3#
1. ... Kxg6 2. Dg7#

b) 1. Lh5! Kxf5 2. De5#
1. ... Kxh5 2. Sf4#
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comment
Keywords: Rex solus (s), Flight giving key, Miniature
Genre: 2#
Computer test: Popeye 4.61
FEN: 8/8/6NP/4QNk1/8/8/6K1/3B4
Input: Rainer Staudte, 2020-10-13
Last update: Marcin Banaszek, 2021-01-15 more...
27 - P1381090
Igor Yarmonov
Problemist of Ukraine 66 10-12/2020
Lob
Stanislaw Kirilitschenko MT
Miniaturen
P1381090
(3+2) C+
#4
b) Drehung 270 Grad und Spiegelung
a) 1. Tc2! Kb3 2. Sd4+ Ka3 3. Ka5 b3 4. Sb5#
2. ... Ka4 3. Ta2#
1. ... b3 2. Tc4#

b) 1. Se5! Kf8 2. Tg6 e6 3. Kd6 Ke8 4. Tg8#
2. ... Ke8 3. Tg8#
play all play one stop play next play all
Witzige Zwillingsbildung (Preisrichter Juri Gordian)
Henrik Juel: Part a is C+ Popeye 4.61 (2020-10-18)
comment
Keywords: Minimal, Miniature
Genre: n#
FEN: 8/8/1K6/1N6/kpR5/8/8/8
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
28 - P1381091
Viktor Shcherbina
Problemist of Ukraine 66 10-12/2020
1. Preis
Stanislaw Kirilitschenko MT
Miniaturen
P1381091
(4+3) C+
#5
1. Tc2! Te1 2. Td2! Tg1 3. Kd3 Ta1 4. Sg3+ Kg1 5. Tg2#
3. ... Tg8 4. Td1+ Tg1 5. Sg3#
1. ... Tg1 2. Sg3+ Txg3+ 3. Kf2 Tg1 4. Tc1 Txc1 5. Lg2#
1. ... Tb3+ 2. Sc3
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Miniature
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-18)
FEN: 8/8/8/8/8/2R1K2B/4N2p/1r5k
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
29 - P1381094
Zoltan Labai
Problemist of Ukraine 66 10-12/2020
2. Preis
Stanislaw Kirilitschenko MT
Miniaturen
P1381094
(4+1) C+
#4
b) Sh6->b3
a) 1. Sf7+? Kd5 a 2. Kd3 B Kc5 3. Lf2+ Kd5 4. Td6#
1. ... Kf5!
1. Sg4+? Kf5 b 2. Kf3 Kg5 3. Ld2+ Kh5 4. Th6#
3. ... Kh4 4. Th6#
3. ... Kf5 4. Tf6#
1. ... Kd5!

1. Kd3! B Kd5 a 2. Sf7 A Kc5 3. Lf2+ Kd5 4. Td6#
1. ... Kf4 c 2. Tb5 Kf3 3. Tg5 Kf4 4. Tf5#

b) 1. Kf3? D Kf5 b 2. Lg3 C Kg5 3. Lf4+ Kh5 4. Th6#
3. ... Kh4 4. Th6#
3. ... Kf5 4. Sd4#
1. ... Kd5!

1. Lg3+? Kf5 b 2. Kf3 D Kg5 3. Lf4+ Kh5 4. Th6#
3. ... Kh4 4. Th6#
3. ... Kf5 4. Sd4#
1. ... Kd5!

1. Sd4! Kd5 a 2. Te6 Kc5 3. Ke4 Kc4 4. Tc6#
2. ... Kc4 3. Ke4 Kc5 4. Tc6#
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Rex solus (s), Aristocrat, Miniature
Genre: n#
Computer test: SCHRECKE:a)+b): C+, Gustav 4.1d, Brute Force (2020-10-18)
FEN: 8/8/1R5N/4k3/8/4K3/8/4B3
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
30 - P1381103
Ferhat Karmil
Problemist of Ukraine 10-12/2020
3. Preis
Stanislaw Kirilitschenko MT
Miniaturen
P1381103
(4+3) C+
#5
1. Sxc2? d1=S! 2. Ka6 S~ 3. Sc5#
1. Tc4+? Ka3 2. Ta4+ Kb2!

1. Ta2+! Kb4 2. Ta4+! Kxa4 3. Sc2! d1=S! 4. Ka6 Sd4 5. Sc5#
4. ... Se3 5. Sc3#
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Checking key, Miniature
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-18
FEN: 8/8/1K6/8/k3N3/1n6/2Rp4/N7
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
31 - P1381104
Mykhailo T. Halma
Problemist of Ukraine 66 10-12/2020
1. ehrende Erwähnung
Stanislaw Kirilitschenko MT
Miniaturen
P1381104
(4+2) C+
#9
b) wBc3->a5
c) -wBc3
a) 1. La6! Kb8 2. Lg3+ Ka8 3. Lh4 Kb8 4. Ld8 Ka8 5. c4 Kb8 6. c5 Ka8 7. c6 Kb8 8. c7+ Ka8 9. c8=D#,c8=T#
b) 1. Lg3! a6 2. Kg2 Ka7 3. Kf3 Ka8 4. Ke4 Ka7 5. Kd5 Ka8 6. Kc6 Ka7 7. Kc7 Ka8 8. Lb7+ Ka7 9. Lf2#
c) 1. La6! Kb8 2. La5 Ka8 3. Kg2 Kb8 4. Kf3 Ka8 5. Ke4 Kb8 6. Kd5 Ka8 7. Kc6 Kb8 8. Lc7+ Ka8 9. Lb7#
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Judge Yuri Gordian
Henrik Juel: C+ Popeye 4.61 (except for the promotion mate dual in part a)) (2020-10-18)
comment
Keywords: Minimal, Miniature
Genre: n#
Computer test: Gustav 4.1c
FEN: k1B5/p7/8/8/8/2P5/8/4B2K
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
32 - P1381105
Valery Barsukov
Problemist of Ukraine 66 10-12/2020
2. ehrende Erwähnung
Stanislaw Kirilitschenko MT
Miniaturen
P1381105
(4+1) C+
#4
1. Lb7? Kf8 2. Ld5 Ke8 3. Sf6+ Kf8 4. Tf7#
1. ... Kh8!

1. Sg5! Kf8 2. Tf7+ Ke8 3. Ld7+ Kd8 4. Se6#
2. ... Kg8 3. Le6 Kh8 4. Th7#
1. ... Kh8 2. Tf7 Kg8 3. Le6 Kh8 4. Th7#
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Aristocrat, Rex solus (s), Miniature
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-18)
FEN: 2B3k1/3R4/K7/8/4N3/8/8/8
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
33 - P1381106
Evgeny Fomichev
Viktor Zheltukhov

Problemist of Ukraine 2020
3. ehrende Erwähnung
Stanislaw-Kirilitschenko-Memorial
P1381106
(5+2)
#5
b) wSd4->d6: #6
a) 1. Tc6! Kd5 2. h6 Ke5 3. h7 Kd5 4. h8=T! Ke5 5. Th5#
4. h8=D? patt

b) 1. Sf5! Kd5 2. Ld4! Kc4 3. Tb6 Kd3 4. Tb2 Kc4 5. Ke4 f3 6. Se3#,Sd6#
3. ... Kd5 4. h6! Kc4 5. Ke4 f3 6. Se3#,Sd6#
1. ... Kxf5 2. Ld4 Kg5 3. Tf6 Kh4 4. Tf5 Kh3 5. Txf4 Kh2 6. Th4#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61, except for the mate dual in part b) (2020-10-18)
comment

Genre: n#
FEN: 8/8/1B5R/4k2P/3N1p2/5K2/8/8
Input: Rainer Staudte, 2020-10-18
Last update: Alfred Pfeiffer, 2020-10-21 more...
34 - P1381107
Elmar Abdullayev
Aleksandr Melnichuk

Problemist of Ukraine 66 10-12/2020
3. ehrende Erwähnung
Stanislaw Kirilitschenko MT
Miniaturen
P1381107
(4+3) C+
#6
b) wSf5->b1
a) 1. Sd4! Kh1 2. Kf2 Ld5 3. Se2 g1=D+ 4. Sxg1 Lxa8 5. Se2 Lb7 6. Sg3#
b) 1. Sd2! Kh1 2. Lf3! Kg1 3. Le4! Kh1 4. Kf2 Ld5 5. Sf1 Lxe4 6. Sg3#
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Promotion (d), Miniature
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-18)
FEN: B7/5b2/8/5N2/6N1/8/6p1/4K1k1
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
35 - P1381108
Salman Javadzade
Vidadi Zamanov
Viktor Volchek

Problemist of Ukraine 66 10-12/2020
4. ehrende Erwähnung
Stanislaw Kirilitschenko MT
Miniaturen
P1381108
(4+2) C+
#6
1. d4 g5 2. d5 Kg6 3. d6 Kf6 4. d7 Ke6 5. d8=T! Kf6 6. Td6#

5. d8=D? patt
4. ... Kg6 5. d8=D! Kh7 6. Dd3# 5. d8=T?
3. ... Kh7 4. d7! Kg6 5. d8=D! Kh7 6. Dd3#
play all play one stop play next play all
Judge Yuri Gordian
Felber, Volker: vergleiche P1162452 (2020-12-24)
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comment
Keywords: Excelsior, under-promotion (T), Promotion (D), Minimal, Miniature
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-18)
FEN: 5K2/5N1k/6p1/8/6P1/8/3P4/8
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
36 - P1381109
Aleksandr Pankratiev
Problemist of Ukraine 66 10-12/2020
5. ehrende Erwähnung
Stanislaw Kirilitschenko MT
Miniaturen
P1381109
(4+2) C+
#4
1. Tf6! Kd3 2. Sf5 Ke2 3. Sg3+ Kd1 4. Tf1#
2. ... Ke4 3. Sg3+ Kd5 4. Td6#
1. ... Kd4 2. Sf5+ Kd3 3. Sg3 Kd4 4. Td6#
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Minimal, Miniature
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-18)
FEN: 8/8/3R4/2p5/2N1k2N/1K6/8/8
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
37 - P1381110
Rainer Staudte
Problemist of Ukraine 66 10-12/2020
Lob
Stanislaw Kirilitschenko MT
Miniaturen
P1381110
(4+2) C+
#12
1. Sf1! Kxf1 2. Kd1 Kf2 3. Kd2 Kf1 4. Sf3 Kf2,Kg2 5. Sg5 Kf1! 6. Se4 Kg2 7. Ke2 Kxh2 8. Kf1! Kh1 9. Kf2 Kh2 10. Sd2 Kh1 11. Sf1 h2 12. Sg3#
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Flight giving key, Minimal, Miniature
Genre: n#
FEN: 8/8/8/8/8/6Np/2K3kB/6N1
Input: Rainer Staudte, 2020-10-18
Last update: Marcin Banaszek, 2021-01-15 more...
38 - P1381117
Valery Liskovets
Problemist of Ukraine Website 10/2020
1.-2. Lob
Stanislaw Kirilitschenko MT
Sektion h#3 4-5 Steine
P1381117
(3+1) C+
h#3*
b) wKf1->c5
a) * 1. ... Se1-g2 2. Kc3-c2 Kf1-f2 3. Kc2-d1 Sg2-e3#
1. Kc3-b2 Se1-g2 2. Kb2-c2 Kf1-f2 3. Kc2-d1 Sg2-e3#
b) * 1. ... Kc5-b6 2. Kc3-b4 Se1-c2+ 3. Kb4-a4 Sb3-c5#
1. Kc3-b2 Kc5-b6 2. Kb2-a3 Se1-c2+ 3. Ka3-a4 Sb3-c5#
play all play one stop play next play all
PR Valery Kopyl
VL: Two waiting moves in a): B1 and W2. (2020-10-21)
comment
Keywords: Rex solus (s), Aristocrat
Genre: h#
Computer test: Popeye 4.83
FEN: 8/8/8/8/8/1Nk5/8/4NK2
Input: Marcin Banaszek, 2020-10-18
Last update: Alfred Pfeiffer, 2020-10-21 more...
39 - P1381127
Mykola V. Chernyavskyi
Problemist of Ukraine 66 10-12/2020
Lob
Stanislaw Kirilitschenko MT
Miniaturen
P1381127
(5+2) C+
#4
b) wTh8->g3
c) wTf1->f8
d) wTf1->f5
a) 1. Th6+? Kxg5 2. Kxg7 Kxg4 3. Tg6+ Kh3 4. Th1#
3. ... Kh4,Kh5 4. Th1#
1. ... gxh6!
1. Th7! Kxg5 2. Txg7+ Kh4 3. Tg1 Kh3 4. Th7#
b) 1. Tgg1! Kxg5 2. Kxg7 Kh4 3. Tf5 Kh3 4. Th5#
c) 1. Th1! Kxg5 2. Kxg7 Kxg4 3. Tg1+ Kh3,Kh4,Kh5 4. Th8#
d) 1. Th6+! gxh6 2. gxh6 Kxh6 3. Kf7 Kh7 4. Th5#
play all play one stop play next play all
Judge Yuri Gordian
Felber, Volker: a,c,d unlösbar. Retro? Kein letzter Zug von Schwarz (2020-12-22)
Marcin Banaszek: Die Lösungen sind O.K. Der schwarze König kam von f5/f6, nachdem weißer Bauer f3/f4 auf g4/g5 geschlagen hat. (2021-01-15)
Mario Richter: Für a) stimmt Marcins Erklärung, aber bei c) und d) hat Volker recht: dort hat Schwarz jeweils keinen legalen letzten Zug! Ich halte die Aufgabe deshalb für "cooked"! (2021-01-16)
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comment
Keywords: Minimal, Miniature
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-19)
FEN: 6KR/6p1/6k1/6P1/6P1/8/8/5R2
Input: Rainer Staudte, 2020-10-19
Last update: Marcin Banaszek, 2021-01-15 more...
40 - P1381128
Stefan Felber
Problemist of Ukraine 66 10-12/2020
Lob
Stanislaw Kirilitschenko MT
Miniaturen
P1381128
(5+1) C+
#5
b) Kd4->c4
a) 1. Ke4! Kc5 2. Ld7 Kd6 3. La4 Kc5 4. Sb7+ Kc4 5. b3#

b) 1. b4! Ke5 2. Sf7+ Ke4 3. Sg5+ Ke5 4. b5 Kd6 5. Sf7#
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Rex solus (s), Flight giving key, Stalemate dissolution, Miniature
Genre: n#
Computer test: SCHRECKE: a)+b): C+, Gustav 4.1d, Brute Force (2020-10-19)
FEN: 3N4/8/3k4/3N4/3K4/7B/1P6/8
Input: Rainer Staudte, 2020-10-19
Last update: Marcin Banaszek, 2021-01-15 more...
41 - P1381129
Anatoly Stepochkin
Problemist of Ukraine 66 10-12/2020
Lob
Stanislaw Kirilitschenko MT
Miniaturen
P1381129
(4+2) C+
#7
1. Kd2 e5 2. Kc3 Ke3 3. Sxe5 Ke4 4. Sd3 Ke3 5. Tf2 Ke4 6. Kd2 Kd4 7. Tf4#
play all play one stop play next play all
Judge Yuri Gordian
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comment
Keywords: Minimal, Miniature
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-10-19)
FEN: 5R2/8/2N1p3/8/2P1k3/8/4K3/8
Input: Rainer Staudte, 2020-10-19
Last update: Marcin Banaszek, 2021-01-15 more...
42 - P1383994
Anatoly Stepochkin
S426 Problemist of Ukraine 04-06/2020
1.-2. ehrende Erwähnung
Sektion s#9-n
P1383994
(10+4) C+
s#9*
* 1. ... exd4#
1. Lc8! Kc6 2. Txc4+ Kd5 3. Lc5 Kc6 4. Tb7 Kd5 5. Kd3 Kc6 6. Le3+ Kd5 7. Sc3+ Kd6 8. Sb5+ Kd5 9. Tc3 e4#
play all play one stop play next play all
Judge Valery Kirillov 12/2020
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2020-12-26)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-27)
comment
Keywords: Fata Morgana, Model mate, Discovered check, Switchback (k), Pawn mate
Genre: s#
FEN: 8/3B2p1/6P1/3kp3/1RpBN3/2K5/1RQPP3/8
Input: Marcin Banaszek, 2020-12-26
Last update: Gunter Jordan, 2020-12-27 more...
43 - P1383996
Evgen S. Orlov
Ivan Soroka

S428 Problemist of Ukraine 04-06/2020
4. Preis
Sektion s#9-n
P1383996
(10+9)
s#14
1. Sc7! Lh5,Lh7 2. Sb5 Lg6 3. Sxa3 Lh5,Lh7 4. Sb5 Lg6 5. a3 Lh5,Lh7 6. a4 Lg6 7. a5 Lh5,Lh7 8. a6 Lg6 9. a7 Lh5,Lh7 10. a8=S Lg6 11. Sac7 Lh5,Lh7 12. Sd5 Lg6 13. Txg8+ Sxg8 14. Se7+ Sxe7#
play all play one stop play next play all
Judge Valery Kirillov 12/2020
Frank Richter: Compare with P1355200 (2020-12-30)
comment

Genre: s#
FEN: N1k3nR/5p2/1QKR1pbn/2P2p2/5Pp1/p5P1/P6P/8
Input: Marcin Banaszek, 2020-12-26
Last update: Marcin Banaszek, 2020-12-27 more...
44 - P1384231
Ivan Soroka
S436 Problemist of Ukraine 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
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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...
45 - P1384260
Volodymyr Chornous
S446 Problemist of Ukraine 10-12/2020
P1384260
(7+3) C+
s#9
1. Tc4! Ke2 2. Tf4+ Kd1 3. Se3+ Ke1 4. Sc2+ Kd1 5. Lc8 Ke2 6. Lg4+ Kd3 7. Td4+ Kc3 8. Db4+ Kxc2 9. Db2+ Lxb2#
play all play one stop play next play all
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws (2020-12-27)
SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-27)
comment

Genre: s#
FEN: 8/8/B7/8/P7/8/P1Rp2N1/KQbk4
Input: Marcin Banaszek, 2020-12-27
Last update: Marcin Banaszek, 2020-12-27 more...
46 - P1384262
Jozef Holubec
S448 Problemist of Ukraine 10-12/2020
P1384262
(12+3) C+
s#9
b) sBd5 statt wBd5
c) wBa6 statt sBa6
a) 1. Da5-a3+! Kb3-c2 2. Da3-a4+ Tb8-b3 3. Td1-d3 a6-a5 4. Sc4-b6 Kc2xb2 5. Td3xb3+ Kb2-c2 6. Tb3-b4+ Kc2-c3 7. 0-0-0 a5xb4 8. Le2-d3 b4-b3 9. Ld3-b1 b3-b2#
b) 1. Se6-c5+! Kb3-c2 2. Sc4-a3+ Kc2xb2 3. Sc5-d3+ Kb2-b3 4. Ta1-b1+ Kb3-a2 5. Sd3-b4+ Tb8xb4 6. Td1-d2+ Tb4-b2 7. Da5xd5+ Ka2xa3 8. Dd5-a5+ Ka3-b3 9. Ke1-d1 Tb2xb1#
c) 1. Sc4-d2+! Kb3-c2 2. Da5-c5+ Kc2xb2 3. Dc5-a3+ Kb2-c2 4. Ta1-a2+ Tb8-b2 5. Le2-f3 Tb2xa2 6. Da3-c1+ Kc2-d3 7. Dc1-c4+ Kd3-e3 8. Sd2-f1+ Ke3xf3 9. Dc4-e2+ Ta2xe2#
play all play one stop play next play all
Henrik Juel: Popeye 4.61 with 'opt non 0 1' found no flaws in a) and b) (2020-12-27)
Henrik Juel: ditto for c) with 'opt non 1 1'
1.Sd2+ Kxb2? 2.Da3+ and s#8 (2020-12-27)
SCHRECKE: a),b)+c): C+, Gustav 4.1d, Brute Force (2021-01-05)
comment

Genre: s#
Computer test: Gustav 4.1d
FEN: 1r6/8/p2PN3/Q2PP3/2NP4/1k6/1P2B3/R2RK3
Input: Marcin Banaszek, 2020-12-27
Last update: Marcin Banaszek, 2021-01-06 more...
47 - P1384280
Mykola Parkhomenko
H1047 Problemist of Ukraine 04-06/2020
P1384280
(3+2) C+
h#2
2.1...
1) 1. Kg3-h4 Ke4-f5 2. Kh4xh5 Th1xh2#
2) 1. Kg3-g2 Ke4-e3 2. Lh2-g3 Lh5-f3#
play all play one stop play next play all
Yuri Bilokin: anticipated P1090243 (2021-03-01)
comment
Keywords: anticipated (P1090243)
Genre: h#
Computer test: Popeye 4.83
FEN: 8/8/8/7B/4K3/6k1/7b/7R
Input: Marcin Banaszek, 2020-12-27
Last update: James Malcom, 2021-03-01 more...
48 - P1384423
Mykhailo Gershynskyi
H1123 Problemist of Ukraine 07-09/2020
P1384423
(4+10) C+
h#3
4.1...
1) 1. Le2-d3 Lc1-e3 2. Kf3xe3 Sh1-g3 3. Ke3-d4 Sg3-f5#
2) 1. e4-e3 Lc1-d2 2. Kf3-e4 Sh1-f2+ 3. Ke4-d4 Ld2-c3#
3) 1. Dg7-g3 Sh1-f2 2. Sh2-g4 Sf2-d3 3. Sg4-f2 Sd3-e5#
4) 1. Dg7-g4 Sh1-g3 2. Kf3xg3 Lc1-d2 3. Le2-f3 Ld2-e1#
play all play one stop play next play all
more ...
comment

Genre: h#
Computer test: Popeye 4.83
FEN: 8/6q1/3K3b/8/2p1pp2/5k1p/1P2b1pn/2B4N
Input: Marcin Banaszek, 2020-12-30
Last update: Gerd Wilts, 2020-12-31 more...
49 - P1384424
Okan Pandar
H1124 Problemist of Ukraine 07-09/2020
P1384424
(6+10) C+
h#3
2.1...
1) 1. Kf5-e4 Te6-c6 2. Td4-d5+ Tc6-c5 3. Ke4-d4 Tc5-c4#
2) 1. Kf5xe6 c2-c4 2. Ke6-d7 c4-c5 3. Sf8-e6 c5-c6#
play all play one stop play next play all
more ...
comment

Genre: h#
Computer test: Popeye 4.83
FEN: 2qrbn2/K1p1p3/4R3/N3Pk2/n2r1P2/4b3/2P5/8
Input: Marcin Banaszek, 2020-12-30
Last update: Gerd Wilts, 2020-12-31 more...
50 - P1384564
Rustam Ubaidullajew
Problemist of Ukraine 2006
2. Preis
Reizen-70-JT (Beweispartien)
P1384564
(14+15)
BP in 22,0
1. c4 e5 2. c5 Dh4 3. c6 Lb4 4. cxd7 Ke7 5. d8=T Sf6 6. Td3 Td8 7. Tc3 Td5 8. d4 Ta5 9. d5 Lf5 10. d6 Ke6 11. d7 c5 12. d8=D Sc6 13. D8d2 Td8 14. Tc2 Td3 15. Dc3 Th3 16. Td2 Lc2 17. Dg3 Kf5 18. f4 Ke4 19. Sf3 Ke3 20. f5 De4 21. Df4 exf4 22. Sg1 Lxd2
play all play one stop play next play all
Henrik Juel: solution
1. Bc2-c4 Be7-e5 2. Bc4-c5 Dd8-h4 3. Bc5-c6 Lf8-b4
4. Bc6xd7 Ke8-e7 5. Bd7-d8=T Sg8-f6 6. Td8-d3 Th8-d8
7. Td3-c3 Td8-d5 8. Bd2-d4 Td5-a5 9. Bd4-d5 Lc8-f5
10. Bd5-d6 Ke7-e6 11. Bd6-d7 Bc7-c5 12. Bd7-d8=D Sb8-c6
13. Dd8-d2 Ta8-d8 14. Tc3-c2 Td8-d3 15. Dd2-c3 Td3-h3
16. Tc2-d2 Lf5-c2 17. Dc3-g3 Ke6-f5 18. Bf2-f4 Kf5-e4
19. Sg1-f3 Ke4-e3 20. Bf4-f5 Dh4-e4 21. Dg3-f4 Be5xf4
22. Sf3-g1 Lb4xd2
The first 21.5 moves are C+ by Euclide 1.01
Euclide 1.01 also shows that last move was not Lb4xSd2+, so the problem seems correct (2021-01-02)
more ...
comment
Keywords: Unique Proof Game
Genre: Retro
FEN: 8/pp3ppp/2n2n2/r1p2P2/4qp2/4k2r/PPbbP1PP/RNBQKBNR
Input: fs/hg, 2020-12-30
Last update: Gerd Wilts, 2021-01-02 more...
51 - P1384568
Anatolii Vasylenko
Andriy Frolkin

Problemist of Ukraine 2008
1. Preis
Kopyl-50-JT
P1384568
(10+12) C+
H#2
b) sKd8 nach e8
a) 1. Txb2 Dxb2 2. De7 Dxb8#
b) 1. Dxa2 Dxa2 2. Te7 Dxg8#
play all play one stop play next play all
Henrik Juel: The requirement for this tourney was something like: H#2 with retro content, so successful entries are retro problems, almost by definition
The judges must have considered that the counting here suffices as retro content
One of the other awarded problems has even less retro content: Last move could not be a pawn capture, because the other side has 16 men (2021-01-02)
Mario Richter: I think Andrew's analysis is not correct, especially his claim "There is no reason that any of these [i.e. the black promoted pieces] need still be on the board"
In fact, Black has promoted FOUR (not 3) of his pawns, twice on c1, twice on d1. The lower right corner can only be opended by retracting d2xe3, before that is possible, all four black promotions must be retracted - the only pieces available for that are Da7, Tb7, Lb8 and Sg8.
In the forward play, exactly these four black officers are captured - does that make them some kind of "Forward-Ceriani-Frolkins"?! (2021-01-02)
A.Buchanan: @Henrik,Mario: I've hidden my prior posts, although I feel I'm clearer now in my mind about what makes a retro-problem. However in the analysis here, I missed the key retraction point: thanks for picking it up. So retracting, Bl unpromotes Phoenix AUW, and uncaptures include wT' & wL' (where ' and " can denote queenside/kingside - I've been looking for a handy notation for this for a long time). With these pieces at home, Wh can unlock the cage as Mario says with dxe3. So the board contains 4 promoted units, which in current PDB terminology, we could only call "obtrusive". We must fix this naming hole. In their encyclopedia, V&V identify 4 kinds of promoted force [with some clarifications by me, including adding a 5th category]. [Each promoted unit should fit into exactly *one* of the categories, although it may not be possible to determine which exact unit is which.]
(1) In the initial problem position there is a piece that can [obviously] only have come through promotion, so-called obtrusive force, e.g. a white dark-squared Bishop, with Pawns b2 and d2 still on their original squares;
(2) [In the initial problem position] promoted force that adds the number of pieces from the game-array, for instance three Rooks or two light-squared Bishops of same color (non-standard material);
([3]) [In the initial problem position] pieces the origin of which has been promotion, which can be deduced only by retrograde analysis, i.e. there is nothing in the position that suggests it is promoted force. [This category needs a proper name, otherwise it will be forever conflated with obtrusive promotions. These are phoenix/prenix, but in many cases we won't be able to distinguish which, and wouldn't care anyway. Are the terms phoenix/prenix are only used for units still on the board?]
[(4) promoted units which have been captured before the initial problem position (Ceriani-Frolkin)]
([5]) pieces that promote during the course of solution.
The pieces of group (3),(4)[&(5)] are allowed, the pieces of group (1) are tolerated, although avoided, whereas the compositions of group (2) are rejected unless there is, say, a theme tournament for compositions with non-standard material.
For retro-problems somewhat different conventions apply, although these still meet the standards set for orthodox problems.[I don't understand this last sentence at all. Mario can you explain please.] (2021-01-03)
Hans-Jürgen Manthey: Ich bin der Meinung das es ein Retro-Problem ist.
es müssen genau die 4 Offiziere geopfert werden die auf den Feldern Da7, Tb7, Lb8, Sg8 wieder erscheinen. mögliche Zugfolge:
R: 1. Kc3-d3 Td7-b7 2. Kb3-c3 Td1-d7 3. Kc3-b3 Dd7-a7 4. Kb3-c3 Tc1-d1 5. Ka3-b3 c2-c1T 6. Kb3-a3 Le5-b8 7. Ka3-b3 Lc3-e5 8. Kb3-a3 Ld2-c3 9. De1-a1 Lc1-d2 10. Db4-e1 c3-c2 11. Ka3-b3 c2-c1L 12. Kb3-a3 Dd1-d7 13. Ka3-b3 d2-d1D 14. Kb3-a3 Sf6-g8 15. Ka3-b3 Se4-f6 16. Db3-b4 c4-c3 17. Db4-b3 Sc3-e4 18. Db3-b4 Sd1-c3 19. Db4-b3 d3-d2 20. Da4-b4 b3xTc2 21. Tc1-c2 d2-d1S 22. Db4-a4 a4xSb3 23. Ta1-c1 a5-a4 24. Ka4-a3 d4-d3 25. Ka3-a4 d3-d2 26. Sd2-b3 d5-d4 27. Sb1-d2 d6-d5 28. Da4-b4 c7xLd6 29. Lb4-d6 Kc8-d8 30. Ld2-b4 b5xSc4 31. Lc1-d2 a7-a5 32. d2xTe3 Te8-e3 33. Kb3-a3 Td8-e8 34. Ka3-b3 0-0-0 35. Kb3-a3 b5-b6 36. Sa3-c4 d4-d3 37. Kc2-b3 e3-e2 38. Kd1-c2 La6-f1 39. e2xSf3 Se5-f3 40. Ke1-d1 Sd7-e5 41. Dd1-a4 Tf8-f2 42. Sc2-a3 d5-d4 43. Sd4-c2 Sb8-d7 44. c5-c6 Lc8-a6 45. c4-c5 b7-b6 46. c2-c4 Th8-f8 47. Sf3-d4 Sf2-h1 48. Sg1-f3 Sg4-f2 49. f2xLg3 f3xLg2 50. Lf1-g2 Ld6-g3 51. g2xDh3 g3xTh2 52. Th1-h2 Sf6-g4 53. Th2-h1 Dd7-h3 54. Th1-h2 Sg8-f6 55. Th2-h1 Lf8-d6 56. Th1-h2 Dd8-d7 57. Th2-h1 e4-e3 58. Th1-h2 e5-e4 59. Th2-h1 f4-f3 60. Th1-h2 f5-f4 61. Th2-h1 g4-g3 62. Th1-h2 g5-g4 63. Th2-h1 g7-g5 64. Th1-h2 f7-f5 65. Th2-h1 e7-e5 66. Th1-h2 d7-d5 67. h2-h4 (2021-01-05)
more ...
comment
Keywords: Allumwandlung, Phoenix (dtls)
Genre: h#, Retro
Computer test: C+ Popeye 4.61
FEN: 1b1k2n1/qr5p/2P5/8/7P/3KPPPP/PP2prpp/Q4b1n
Input: fs/hg, 2020-12-30
Last update: A.Buchanan, 2021-01-03 more...
52 - P1384572
Sergei Kirillov
Michail I. Mischko

Problemist of Ukraine 2008
5. Preis
Kopyl-50-JT
P1384572
(5+16)
H#2
b) -sTg8
c) wTa1 nach h1
d) ferner -sBc4
Henrik Juel: Thanks, Gerd
Now C+ Popeye 4.61 (and a little analysis)
a) 1.axb4 Ta6+ 2.Kf7 Tf6# (White may not castle)
b) 1.Df7 0-0-0 2.Lf5 Td6#
c) 1.Lxg5 Th6+ 2.Kd5 Td6# (White may not castle)
d) 1.Dd7 0-0 2.Ld5 Tf6# (2021-01-02)
more ...
comment

Genre: Retro, h#
FEN: 4q1r1/pp2n1np/4k3/p1P1r1P1/1Pp1b1pb/1p4p1/8/R3K3
Input: fs/hg, 2020-12-30
Last update: Gerd Wilts, 2021-01-02 more...
53 - P1385263
Robert A. Lincoln
2051 The Macedonian Problemist 54 2017
P1385263
(4+3) C+
#2
1. De5-e1!
1. ... Lh4-d8,L~ 2. De1xf2#
1. ... Lh4-g3 2. De1-e4#
1. ... Tf2xf1 2. De1-c3#
1. ... Kf3-g3+ 2. De1xf2#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 also (2021-01-11)
comment
Keywords: Aristocrat, Miniature, Multiple publication
Genre: 2#
Computer test: Popeye 4.83
FEN: 8/8/8/4QK2/7b/5k2/5r1R/5R2
Reprints: A613 Problemist of Ukraine 65 07-09/2020
Input: Marcin Banaszek, 2021-01-11
Last update: Rainer Staudte, 2021-01-31 more...
54 - P1385393
Anatoly Kirichenko
Problemist of Ukraine 66 10-12/2020
2. Preis
Stanislaw Kirilitschenko MT
Miniaturen
P1385393
(4+3) C+
#2
1. Lc2-d3? Ke1xd1 2. Da5-a1#
1. ... e3-e2!
1. Sd1-b2? e3-e2 2. Sb2-d3#
1. ... Ke1-e2!
1. Da5-b4? e3-e2 2. Db4-h4#
1. ... Ke1-e2!

1. Da5-c3!
1. ... e3-e2 2. Dc3-g3#
1. ... Ke1-e2 2. Dc3xe3#
play all play one stop play next play all
Judge Mykola Chernyavsky
more ...
comment
Keywords: Miniature
Genre: 2#
Computer test: Popeye 4.83
FEN: 8/8/8/Q7/8/4p3/2Br4/3Nk1K1
Input: Marcin Banaszek, 2021-01-15
Last update: Marcin Banaszek, 2021-01-18 more...
55 - P1385396
Michael Lipton
Problemist of Ukraine 66 10-12/2020
Spezialpreis
Stanislaw Kirilitschenko MT
Miniaturen
P1385396
(5+2) C+
#2
b) alles eine Linie nach links
c) sSd8 statt sLd8
a) * 1. ... Ld8-f6 2. Ld6-e5#
* 1. ... Ld8-g5 2. Ld6-f4#
* 1. ... Ld8-b6 2. Ld6-c5#
* 1. ... Ld8-a5 2. Ld6-b4#

1. Dd2-d5! droht 2. Te8xd8# 2. Tc8xd8# 2. Dd5-e6# 2. Dd5-c6#
1. ... Kd7xe8 2. Dd5-e6#
1. ... Kd7xc8 2. Dd5-c6#
1. ... Ld8-e7 2. Ld6xe7#
1. ... Ld8-c7 2. Ld6xc7#

b) * 1. ... Lc8-e6 2. Lc6-d5#
* 1. ... Lc8-f5 2. Lc6-e4#
* 1. ... Lc8-a6 2. Lc6-b5#

1. Dc2-h7+! Kc7xd8 2. Dh7-d7#
1. ... Kc7xb8 2. Dh7-b7#
1. ... Kc7xc6 2. Dh7-c2#
1. ... Lc8-d7 2. Dh7xd7#

c) 1. Dd2-d5! droht 2. Tc8xd8# 2. Te8xd8#
1. ... Kd7xe8 2. Dd5-e6#
1. ... Kd7xc8 2. Dd5-c6#
play all play one stop play next play all
Judge Mykola Chernyavsky
Felber, Volker: a+b vorweggenommen durch P1164098 (2021-01-26)
comment
Keywords: Aristocrat, Minimal, Miniature, anticipated (a+b P1164098)
Genre: 2#
Computer test: Popeye 4.83
FEN: 2RbR3/3k4/3B4/8/8/8/3Q3K/8
Input: Marcin Banaszek, 2021-01-15
Last update: Felber, Volker, 2021-01-26 more...
56 - P1385398
Fedir Kapustin
Problemist of Ukraine 66 10-12/2020
1.-3. ehrende Erwähnung
Stanislaw Kirilitschenko MT
Miniaturen
P1385398
(4+3) C+
#2
1. Te1-h1? droht 2. Kh3-g3#
1. ... f5-f4!
1. Te1-a1? f5-f4 2. Ta1-a5#
1. ... e4-e3!
1. g2-g3? f5-f4 2. g3-g4#
1. ... e4-e3!

1. Te1xe4! droht 2. Te4-h4#
1. ... f5-f4 2. Te4-e5#
1. ... f5xe4 2. g2-g4#
play all play one stop play next play all
Judge Mykola Chernyavsky
more ...
comment
Keywords: Miniature, Capture key
Genre: 2#
Computer test: Popeye 4.83
FEN: 8/8/5Q2/5p1k/4p3/7K/6P1/4R3
Input: Marcin Banaszek, 2021-01-15
Last update: Rainer Staudte, 2021-02-07 more...
57 - P1388976
Mykola Vasyuchko
H1199 Problemist of Ukraine 67 01-03/2021
P1388976
(8+11) C+
h#2
4.1...
1) 1. De3xc1 Sc5xe6+ 2. Kd4-c4 Tg5-c5#
2) 1. De3xg5 Sc5xb3+ 2. Kd4-d5 Tc1-c5#
3) 1. De3-e2 Sc5xd3 2. Kd4xd3 Tg5-d5#
4) 1. De3-f3 Sc5xe4 2. Kd4xe4 Tc1-c4#
play all play one stop play next play all
more ...
comment

Genre: h#
Computer test: Popeye 4.83
FEN: 2n5/2Kp1p2/2P1rP2/2N3R1/p2kp3/Pp1pq3/5P2/2R2n2
Input: Marcin Banaszek, 2021-04-25
Last update: Marcin Banaszek, 2021-04-28 more...
58 - P1389005
Ivan Bryukhanov
H1258 Problemist of Ukraine 2(68) 04-06/2021
P1389005
(2+3) C+
h#5
2.1...
1) 1. Dc1+ Kxc1 2. Kc3 Kd1 3. Kb2 Sc5 4. Ka1 Kc1 5. Ta2 Sb3#
2) 1. Da1+ Kc2 2. Kc4 Kd2 3. Kb3 Kd3 4. Ka2 Kc2 5. Ta3 Sb4#
play all play one stop play next play all
more ...
comment
Keywords: Aristocrat, Corner mate (in 1), Remote selfblock (in 2), Ideal mate, Minimal (S), Switchback (K), Checking key, Selfblock, Miniature
Genre: h#
Computer test: Gustav 4.1d, Brute Force
FEN: 8/8/N7/r7/3k4/2q5/8/1K6
Input: Gunter Jordan, 2021-04-26
Last update: Marcin Banaszek, 2021-05-02 more...
59 - P1389064
Vladimir Samilo
C352 Problemist of Ukraine 67 01-03/2021
P1389064
(6+9)
#15
1. Th7-h6? droht 2. Sb6-c4+ b5xc4 3. Th6xa6#
1. ... a6-a5!

1. e8=D! Txe8 2. Ta7 Th8+ 3. Kg1 Tg8+ 4. Kf1 Tf8+ 5. Kxe1 Te8+ 6. Kf1 Tf8+ 7. Kg1 Tg8+ 8. Kh1 Th8+ 9. Lh5 Txh5+ 10. Kg1 Tg5+ 11. Kf1 Tf5+ 12. Ke1 Te5+ 13. Kd1 Td5+ 14. Sxd5 Lb1,a5 15. Txa6#,Txa5#
13. ... Te1+ 14. Kxe1 Lb1,a5 15. Txa6#,Txa5#
1. ... Txb6 2. Dxe1 Tc6 3. Lxb2+ Kxb2 4. Dxb4 Lb1 5. Dxb3+ Kc1 6. Th2 Le4+ 7. Kg1 Tg6+ 8. Kf1 Lg2+ 9. Txg2 Txg2 10. Kxg2 Kd2 11. Kf2 a5 12. Dc2#
1. ... Lb1 2. Lxb2+ Kxb2 3. Th2+ Lc2 4. Dxe1 a5 5. De5+ Kb1 6. De2 Ka1 7. Lxc2 Tc8 8. De5+ b2 9. Sxc8 Ka2 10. Ld1 a4 11. Dxb2#
1. ... Sd3 2. Dxb5 Sf2+ 3. Kh2 Sxd1+ 4. Kh3 Sf2+ 5. Kh4 Ta8 6. Da4#
1. ... Tb7 2. Dg6 Txh7 3. Dxh7 Sd3 4. Dxd3 a5 5. De2 a4 6. Lxb2#
play all play one stop play next play all
more ...
comment

Genre: n#
FEN: 1r6/4P2R/pN6/1p6/1p6/kp6/br6/2BBn2K
Input: Marcin Banaszek, 2021-04-29
Last update: Olaf Jenkner, 2021-04-30 more...
60 - P1389273
Viktor Ya. Yuziuk
S463 Problemist of Ukraine 68 04-06/2021
P1389273
(7+6)
s#12
1. Tb3-e3+! Ka4-b4 2. Lb2-c3+ Kb4xc4 3. Lc3xa5+ Kc4-d4 4. Dc2-b2+ Kd4-c4 5. Db2-b3+ Kc4-d4 6. Db3-b6+ Kd4-c4 7. Db6xa6+ Kc4-d4 8. Da6-b6+ Kd4-c4 9. Te3-e4+ Sf6xe4 10. Db6-b5+ Kc4-d4 11. Se1-f3+ Df4xf3 12. La5-b6+ Se4-c5#
play all play one stop play next play all
Henrik Juel: Popeye 4.61 with 'opt non 0 1 thr 0' found no flaws (2021-05-04)
comment
Keywords: Checking key
Genre: s#
FEN: 4n3/8/p1K2n2/p7/k1N2q2/1R6/1BQP4/4N3
Input: Marcin Banaszek, 2021-05-04
Last update: Gunter Jordan, 2021-05-04 more...
61 - P1389369
Andreas Witt
A650 Problemist of Ukraine 68 04-06/2021
P1389369
(10+13)
#2
1. Ld5xc6? droht 2. Dh7-d7#
1. ... Lb7xc6 2. Sa5xc6#
1. ... Lb7-c8!
1. Ld5xe6? droht 2. Dh7-d7#
1. ... Dg4-h3 2. Sg5xf3#
1. ... Dg4-h5!
1. Ld5-e4? droht 2. Dh7-d7#
1. ... Sg3xe4 2. Te5xe4#
1. ... Sg3-f5 2. Sg5xe6#
1. ... Te2-h2!
1. Ld5xf3? droht 2. Dh7-d7#
1. ... Dg4-h5,Dh4 2. Sg5xe6#
1. ... Dg4-h3!
1. Ld5-c4? droht 2. Dh7-d7#
1. ... Sa3xc4 2. Tc5xc4#
1. ... Sa3-b5!
1. Ld5-b3? droht 2. Dh7-d7#
1. ... Tb1-h1!

1. Ld5-a2! droht 2. Dh7-d7#
1. ... Lb7-c8 2. Sa5xc6#
1. ... Dg4-h5 2. Sg5xe6#
1. ... Dg4-h3 2. Sg5xf3#
1. ... Te2-h2 2. Lf4xe3#
1. ... Sa3-b5,Sc4 2. Tc5-c4#
1. ... Tb1-h1 2. Sa5-b3#
1. ... Sg3-e4 2. Te5xe4#
1. ... Dg4-h4 2. Sg5xf3# 2. Sg5xe6#
1. ... Sg3-f5 2. Sg5xe6# 2. Te5-e4#
play all play one stop play next play all
Henrik Juel: Apparently the six tries by Ld5 come at the price of two duals (2021-05-07)
comment

Genre: 2#
FEN: 7K/1b5Q/2p1p1p1/N1RBR1N1/1P1k1Bq1/n1p1ppn1/2P1r3/1r6
Input: Marcin Banaszek, 2021-05-07
Last update: Marcin Banaszek, 2021-05-07 more...
62 - P1390732
Karol Mlynka
Problemist of Ukraine 2014
3. ehrende Erwähnung
TT-11 Problemist Ukraini 2014
P1390732
(3+4) C+
#2
1. Lg2! droht 2. Kc5,Kb5,Kd7#
1. ... Sxc7 2. Kxc7#
1. ... Sd6 2. Kxd6#
1. ... a6,a5 2. Kb6#
play all play one stop play next play all
PR Robert Lincoln: " Ojanen theme layout much more economical than the sample in the appendix. [P1132287] It is not a closed system since random moves permit all threats to ensue. Yet, intense efforts to utilize minimal means should be recognized."
Henrik Juel: C+ Popeye 4.61, except for the thematical triple threat
typos in first variation: 2. Kxc7# (2021-06-11)
A.Buchanan: It's possible to "close the system" with wR instead of bP e.g. 3k3n/3p1B2/5K2/2R5/8/4B3/8/8. I guess that in this kind of formal theme, 1. ... a6,a5 counts as a defect, and that requires an 8th unit to fix: 3k3n/N2p1B2/5K2/3N4/8/8/8/2B5 (2021-06-12)
comment
Keywords: Miniature, Ojanen
Genre: 2#
Computer test: C+ Popeye 4.61, except for the thematical triple threat typos in first variation: 2. Kxc7#
FEN: k3n3/p1B5/2K2p2/8/8/8/8/5B2
Input: Mario Richter, 2021-06-11
Last update: A.Buchanan, 2021-06-13 more...
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