Die Schwalbe

8 problem(s) found in 8833 milliseconds (displaying 8 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT A='Uris, Miguel' AND S='Vielzügige Schachaufgaben'] [download as LaTeX]

1 - P1195171
Ottó Titusz Bláthy
36 Vielzügige Schachaufgaben 1890
P1195171
(5+15) cooked
#105
1. Ld1 Lh7 2. Kh6 Lg8 3. Kg5 Lh7 4. Kf5 Lg8 5. Ke4 Lh7 6. Ke3 Lg8 7. Kf2 Lh7 8. Kg1 Lg8 9. Kf1 Lh7 10. Kf2 Lg8 11. Ke3 Lh7 12. Ke4 Lg8 13. Kf5 Lh7 14. Kg5 Lg8 15. Kh6 Lh7 16. Kg7 b6 17. Kh6 Lg8 18. Kg5 Lh7 19. Kf5 Lg8 20. Ke4 Lh7 21. Ke3 Lg8 22. Kf2 Lh7 23. Kg1 Lg8 24. Kf1 Lh7 25. Kf2 Lg8 26. Ke3 Lh7 27. Ke4 Lg8 28. Kf5 Lh7 29. Kg5 Lg8 30. Kh6 Lh7 31. Kg7 b5 32. Kh6 Lg8 33. Kg5 Lh7 34. Kf5 Lg8 35. Ke4 Lh7 36. Ke3 Lg8 37. Kf2 Lh7 38. Kg1 Lg8 39. Kf1 Lh7 40. Kf2 Lg8 41. Ke3 Lh7 42. Ke4 Lg8 43. Kf5 Lh7 44. Kg5 Lg8 45. Kh6 Lh7 46. Kg7 a6 47. Kh6 Lg8 48. Kg5 Lh7 49. Kf5 Lg8 50. Ke4 Lh7 51. Ke3 Lg8 52. Kf2 Lh7 53. Kg1 Lg8 54. Kf1 Lh7 55. Kf2 Lg8 56. Ke3 Lh7 57. Ke4 Lg8 58. Kf5 Lh7 59. Kg5 Lg8 60. Kh6 Lh7 61. Kg7 a5 62. Kh6 Lg8 63. Kg5 Lh7 64. Kf5 Lg8 65. Ke4 Lh7 66. Ke3 Lg8 67. Kf2 Lh7 68. Kg1 Lg8 69. Kf1 Lh7 70. Kf2 Lg8 71. Ke3 Lh7 72. Ke4 Lg8 73. Kf5 Lh7 74. Kg5 Lg8 75. Kh6 Lh7 76. Kg7 a4 77. Kh6 Lg8 78. Kg5 Lh7 79. Kf5 Lg8 80. Ke4 Lh7 81. Ke3 Lg8 82. Kf2 Lh7 83. Kg1 Lg8 84. Kf1 Lh7 85. Kf2 Lg8 86. Ke3 Lh7 87. Ke4 Sf8+ 88. Kxe5 Sd7+ 89. Kd4 Sxf6 90. Sxf6 Lg6 91. Kd5 Kc3 92. Kc5 Lh7 93. Sd5+ Kb2 94. Kd4 f6 95. Sc3 Lg6 96. Sxb5 Lf5 97. Sd6 Le6 98. Sc4+ Lxc4 99. Kxc4 f5 100. g5 f4 101. g6 f3 102. g7 f2 103. g8=D f1=D 104. Dg7+ Df6 105. Dxf6#
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Cook: 91. Sd5 f6 92. Sc7 Le4 93. Sxb5 Lf5 94. Sc3 Ld7 95. Sd5 Lxg4 96. Sb6 Lxd1 97. Sc4+ Kc2 98. Se3+ Kb2 99. Sxd1+ Kc2 100. Se3+ Kb2 101. Kxd3 f5 102. Sd1#
95.- Lc6,Le8 96. Sb6 Lb5 97. Kc5 Kc3 98. Sd5+ Kb2 99. Kxb5 f5 100. Sb6 Kc3 101. Kc5 f5 102. Sxa4#
msterkowiec: Maybe it's also worth mentioning how White can deal with 4...Nf8+ (or 13...Nf8+ etc)
5. K:e5 Nd7+ 6. Kd4 N:f6 7. N:f6 Bg6 8. g5 a6 9. Nd5 b6 10. Nf4 a5 11. N:d3+ B:d3 12. K:d3 b5 13. Kd4 a4 14. Kd3 b4 15. Kd4 f5 16. g6 f4 17. g7 f3 18. g8Q f2 19. Qg7 f1Q 20. Ke4+ Qf6 21. Q:f6x
If 9...Bh5 then 10. Nb6 B:d1 11. Nc4+ Kc2 12. Ne3+ Kb2 13. N:d1+ Kc2 14. Ne3+ Kb2 15. K:d3 (2023-04-25)
comment
Keywords: Sea Snake
Genre: n#
FEN: 6b1/pp3pK1/5Bn1/3Nn3/6P1/pp1p1B2/pk1p4/rrb5
Input: Frank Müller, 2011-05-09
Last update: Olaf Jenkner, 2011-05-10 more...
2 - P1238060
Gustavus Charles Reichhelm
Brentano's Chess Monthly 01/1882
P1238060
(6+16) cooked
#121
1. Txh1+ Lh4 2. Txf1 Lg3 3. Ta1 Lf2 4. Tc1 Lg3 5. Tf1 Le5+! 6. Kf5 Lg3 7. Th1+ Lh4 8. Kf6 d6 9. Ta1 Lf2 10. Tc1 Lg3 11. Tf1 Le5+ 12. Kf5 Lg3 13. Th1+ Lh4 14. Kf6 a4 15. Ta1 Lf2 16. Tc1 Lg3 17. Tf1 Le5+ 18. Kf5 Lg3 19. Th1+ Lh4 20. Kf6 a5 21. Ta1 Lf2 22. Tc1 Lg3 23. Tf1 Le5+ 24. Kf5 Lg3 25. Th1+ Lh4 26. Kf6 a6 27. Ta1 Lf2 28. Tc1 Lg3 29. Tf1 Le5+ 30. Kf5 Lg3 31. Th1+ Lh4 32. Kf6 a3 33. Ta1 Lf2 34. Tc1 Lg3 35. Tf1 Le5+ 36. Kf5 Lg3 37. Th1+ Lh4 38. Kf6 a4 39. Ta1 Lf2 40. Tc1 Lg3 41. Tf1 Le5+ 42. Kf5 Lg3 43. Th1+ Lh4 44. Kf6 a5 45. Ta1 Lf2 46. Tc1 Lg3 47. Tf1 Le5+ 48. Kf5 Lg3 49. Th1+ Lh4 50. Kf6 a2 51. Ta1 Lf2 52. Tc1 Lg3 53. Tf1 Le5+ 54. Kf5 Lg3 55. Th1+ Lh4 56. Kf6 a3 57. Ta1 Lf2 58. Tc1 Lg3 59. Tf1 Le5+ 60. Kf5 Lg3 61. Th1+ Lh4 62. Kf6 a4 63. Ta1 Lf2 64. Tc1 Lg3 65. Tf1 Le5+ 66. Kf5 Lg3 67. Th1+ Lh4 68. Kf6 a1=D 69. Txa1 Lf2 70. Tc1 Lg3 71. Tf1 Le5+ 72. Kf5 Lg3 73. Th1+ Lh4 74. Kf6 a2 75. Ta1 Lf2 76. Tc1 Lg3 77. Tf1 Le5+ 78. Kf5 Lg3 79. Th1+ Lh4 80. Kf6 a3 81. Ta1 Lf2 82. Tc1 Lg3 83. Tf1 Le5+ 84. Kf5 Lg3 85. Th1+ Lh4 86. Kf6 a1=D 87. Txa1 Lf2 88. Tc1 Lg3 89. Tf1 Le5+ 90. Kf5 Lg3 91. Th1+ Lh4 92. Kf6 a2 93. Ta1 Lf2 94. Tc1 Lg3 95. Tf1 Le5+ 96. Kf5 Lg3 97. Th1+ Lh4 98. Kf6 c1=D 99. Txc1 Lf2 100. Ta1 Lg3 101. Tf1 Le5+ 102. Kf5 Lg3 103. Th1+ Lh4 104. Kf6 d5! 105. Ta1 Lf2 106. Tc1 Lg3 107. Tf1 Le5+ 108. Kf5 Lg3 109. Th1+ Lh4 110. Kf6 d4 111. cxd4 a1=D 112. Txa1 Lg3 113. Th1+ Lh4 114. Tf1 Lf2 115. d5 Lg3 116. Tf3 ... 117. d6 ... 118. d7 ... 119. d8=D ... 120. Kf5 ... 121. Df6,Dxg5#
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Weiterentwicklung siehe P1238061
Anton Baumann: 98. .. c1=D? 99.Txc1 Lf2 100.Th1+ Lh4 101.c4! a1=D 102.Txa1 Lf2 103.Th1+ Lh4 104.Th3 d5 105.c5 d4 106.Txd3 Le1 107.c6 108.c7 109.c8=S (droht 111.Sf5#) Lg3 110.Txg3 d3 111.Th3#
besser, aber auch kürzer: 98. .. d5! 99.Ta1 Lf2 100.Tc1 Ld4+! 101.Kf5 Lf2 102.Th1+ Lh4 103.Kf6 c1=D 104.Txc1 Lf2 105.Ta1 Ld4+ 106.Kf5 Lf2 107.Th1+ Lh4 108.Kf6 d4 109.cxd4 a1=D 110.Txa1 Lg3 111.Th1+ Lh4 112.Tf1 Lf2 113.d5 Lg3 114.Tf3 Le1 115.d6 116.d7 117.d8=D 118.Kf5 119.Df6,Dxg5#
100. .. Lg3? 101.Tf1 Lh4 (101. ..Le5+? 102.Kxe5!) 102.Th1 c1=D 103.Txc1 ... 118.# (2018-02-15)
athulin: Earlier publication in Boston Weekly Globe, on 1879-09-16, without a problem
number, but with the epigraph 'The Mastodon'. (See Chess Archaeology site for column
scan.) (2022-05-20)
comment
Keywords: Sea Snake
Genre: n#
FEN: 5Bbq/p2p1prr/p4K1k/p5p1/6P1/2Pp4/2pP4/4bnRn
Reprints: Vielzügige Schachaufgaben , p. 77, 1890
A The Problemist Supplement 118, p. 205, 05/2012
Input: Frank Müller, 2012-05-05
Last update: Frank Müller, 2018-02-16 more...
3 - P1299571
Ottó Titusz Bláthy
Heinrich Friedrich Ludwig Meyer

Vielzügige Schachaufgaben 1890
P1299571
(9+16)
#45
1. Sb5+ Kd3 2. Se5+ Ke2 3. Sc3+ Kf2 4. Sd3+ Kg3 5. Se4+ Kg4 6. Se5+ Kf5 7. Sg3+ Kf6 8. Sg4+ Ke7 9. Sf5+ Kd7 10. Se5+ Kc8 11. Se7+ Kb8 12. Sd7+ Ka7 13. Sc8+ Ka6 14. Sb8+ Kb5 15. Sa7+ Kxb4 16. Sa6+ Kc3 17. Sb5+ Kd3 18. Sb4+ Ke2 19. Sc3+ Kf2 20. Sd3+ Kg3 21. Se4+ Kg4 22. Se5+ Kf5 23. Sg3+ Kf6 24. Sg4+ Ke7 25. Sf5+ Kd7 26. Se5+ Kc8 27. Se7+ Kb8 28. Sd7+ Ka7 29. Sc8+ Ka6 30. Sb8+ Kb5 31. Txb2+ Sb3 32. Sa7+ Kb4 33. Sbc6+ Kc3 34. Sb5+ Kd3 35. Sb4+ Ke2 36. Sc3+ Kf2 37. Sd3+ Kg3 38. Se4+ Kg4 39. Se5+ Kf5 40. Sg3+ Kf6 41. Sg4+ Ke7 42. Sf5+ Kd7 43. Se5+ Kc8 44. Se7+ Kb8 45. S5c6#
16. ... Kb3 17. Txb2+ Kc3 18. Sb5+ Kd3 19. Sb4+ Ke2 20. Txc2+ Kd1 21. Sc3+ Ke1 22. Sd3#
20. ... Ke1 21. Sd3+ Kd1 22. Td2#
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Cook: Dual:
35. Se5+ Ke2 36. Sc3+ Kf2 37. Sd3+ usw. ...
James Malcom: Since P1375224 and P1297870 are both cooked, I did a search of PDB and this was the longest correct checking, and logest string of checks, that I found. I’ve keyed it as such for now. There is but a minor dual here. (2020-09-01)
James Malcom: The record is now 47: P1402132 (2023-06-16)
comment
Keywords: Move Length Record, Consecutive checks (45)
Genre: n#
FEN: b2b3R/1np2pp1/2N5/n1PK4/pP3P2/N1k2p2/Rpp3p1/r1B2rq1
Reprints: 45 Söslanger 1969
Input: Frank Müller, 2015-03-20
Last update: James Malcom, 2023-06-15 more...
4 - P1372653
Ottó Titusz Bláthy
37 Vielzügige Schachaufgaben , p. 41, 1890
P1372653
(9+9)
#108
1. Kd2 Ka7 2. Kc1 Kb8 3. Kb1 Ka7 4. Ka1 Kb8 5. Ka2 Ka7 6. Ka3 Kb8 7. Kb4 Ka7 8. Ka5 f6 9. Kb4 Kb8 10. Ka3 Ka7 11. Ka2 Kb8 12. Ka1 Ka7 13. Kb1 Kb8 14. Ka2 Ka7 15. Ka3 Kb8 16. Kb4 Ka7 17. Ka5 f5 18. Kb4 Kb8 19. Ka3 Ka7 20. Ka2 Kb8 21. Ka1 Ka7 22. Kb1 Kb8 23. Ka2 Ka7 24. Ka3 Kb8 25. Kb4 Ka7 26. Ka5 g6 27. Kb4 Kb8 28. Ka3 Ka7 29. Ka2 Kb8 30. Ka1 Ka7 31. Kb1 Kb8 32. Ka2 Ka7 33. Ka3 Kb8 34. Kb4 Ka7 35. Ka5 g5 36. Kb4 Kb8 37. Ka3 Ka7 38. Ka2 Kb8 39. Ka1 Ka7 40. Kb1 Kb8 41. Ka2 Ka7 42. Ka3 Kb8 43. Kb4 Ka7 44. Ka5 h6 45. Kb4 Kb8 46. Ka3 Ka7 47. Ka2 Kb8 48. Ka1 Ka7 49. Kb1 Kb8 50. Ka2 Ka7 51. Ka3 Kb8 52. Kb4 Ka7 53. Ka5 h5 54. Kb4 Kb8 55. Ka3 Ka7 56. Ka2 Kb8 57. Ka1 Ka7 58. Kb1 Kb8 59. Ka2 Ka7 60. Ka3 Kb8 61. Kb4 Ka7 62. Ka5 f4 63. Kb4 Kb8 64. Ka3 Ka7 65. Ka2 Kb8 66. Ka1 Ka7 67. Kb1 Kb8 68. Ka2 Ka7 69. Ka3 Kb8 70. Kb4 Ka7 71. Ka5 h4 72. Kb4 Kb8 73. Ka3 Ka7 74. Ka2 Kb8 75. Ka1 Ka7 76. Kb1 Kb8 77. Ka2 Ka7 78. Ka3 Kb8 79. Kb4 Ka7 80. Ka5 f3 81. Kb4 Kb8 82. Ka3 Ka7 83. Ka2 Kb8 84. Ka1 Ka7 85. Kb1 Kb8 86. Ka2 Ka7 87. Ka3 Kb8 88. Kb4 Ka7 89. Ka5 h3 90. Kb4 Kb8 91. Ka3 Ka7 92. Ka2 Kb8 93. Ka1 Ka7 94. Kb1 Kb8 95. Ka2 Ka7 96. Ka3 Kb8 97. Kb4 Ka7 98. Ka5 b4 99. Kxb4 a3 100. bxa3 Kxa6 101. b8=T Ka7 102. Tb6 Ka8 103. Ka5 Ka7 104. Tb1 Ka8 105. Kb6 Kb8 106. Td1 Kc8 107. Td6 Kb8 108. Td8#

100. ... Kb8 101. Kxc4 Kc7 102. Kd4 Kb8 103. Ke5 Kc7 104. a4 Kb8 105. Kd6 Ka7 106. Kc7 Kxa6 107. b8=D Ka5 108. Da7#,Da8#

Der Versuch 1. Kd4? Kc7 2. Ke5 findet in 2. ... b4! seine Widerlegung.
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Superseded by P1382048
James Malcom: I believe that this is the record for the longest Kindergarden problem! The second longest that I know of is P1299269. (2020-02-14)
James Malcom: Actually, as it turns out, this is superseded by P1382048, with a total of four whole moves. (2020-11-18)
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comment
Keywords: Sea Snake, Kindergarten Problem, Move Length Record, Promotion (T,D), under-promotion
Genre: n#
FEN: 1k6/1P3ppp/P1p5/1pP5/p1p3p1/2P1K1P1/1P3P1P/8
Input: James Malcom, 2020-02-14
Last update: James Malcom, 2020-11-18 more...
5 - P1382048
Ottó Titusz Bláthy
37 Vielzügige Schachaufgaben 1890
Version By Unknown
P1382048
(9+9)
#111
1. Kb4! Ka8 2. Ka3 Kb7 3. Ka2 Ka8 4. Kb1 Kb7 5. Ka1 Ka8 6. Ka2 Kb7 7. Ka3 Ka8 8. Kb4 Kb7 9. Ka5 f6 18. ... f5 27. ... g6 36. ... g5 45. ... h6 54. ... h5 63. ... f4 72. ... f3 81. ... h4 90. ... h3 99. ... b4 100. Kxb4 a3 101. Kxa3 Ka8 102. Ka4 Kb7 103. Ka5 Ka8 104. b4 Kb7 105. b5 cxb5 106. Kb4 Kc6 107. a8=D+ Kd7 108. De4 Kc8 109. c6 Kd8 110. Kxb5 Kc8 111. De8#
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An elongated version of P1372653 by four moves; the original origins are unknown

Move length record for a kindergarten problem
A.Buchanan: Any kind of assessment of soundness of this one? (2020-11-19)
James Malcom: Andrew, there is no doubt about the soundness. Sure, the ending may have a few duals, but those are generally acceptable in Blathy's correct work. Here is the proof.

All White pawns are immobile. The kingside mustn't move, or else Black breaks through and wins. Nor can a7, b2, or b6 without losing the winning chance.

The Black king is stuck, of course. The Black kindgside pawns are forever held up by White's, and the queenside ones can't move, or else Black would soon be in zugzwang and lose.

Lastly, the White king can't go after the Black pawn to shorten the game, or the Black queenside pawns must be tended to. If the White king reaches either e5 or f4, then Black plays b4!, threatening to queen soon. So the White king must hurry back, Black gets the White queen stuck as well, and it is a draw.

With a restricted White king to the given triangulation corridor, the Black king stuck, all pawns pawns frozen on their journeyes, the soundness is guranteed. (2020-11-19)
James Malcom: Furthermore, on move 99 with Black to move, chess.com analysis agrees with checkmate in move 112, albeit with a few move order corrections that I've just made. So it is still correct, with a Blathy style taste in duals. (2020-11-19)
Anton Baumann: Nach 99. - b4 gemäss Gustav noch 12 Züge; das ist #111.
Korrektur: ... 108.De4 Kc8 109.c6 Kd8 110.Kxb5 111.De8# (2020-11-20)
James Malcom: Fixed. (2021-01-20)
comment
Keywords: Kindergarten Problem, Move Length Record, Promotion (D), Sea Snake
Genre: n#
FEN: 8/Pk3ppp/1Pp5/KpP5/p1p3p1/2P3P1/1P3P1P/8
Reprints: - Szachy , p. 140, 07-08/1948
Input: James Malcom, 2020-11-18
Last update: Marcin Banaszek, 2024-02-25 more...
6 - P1390179
Ottó Titusz Bláthy
702 Deutsches Wochenschach 7-8 24/02/1889
P1390179
(9+12)
#30
1. Scb4 Th6 2. Kg7 Th5 3. Kf8 ... 4. Ke7 ... 5. Kd8 ... 6. Kc7 ... 7. Kb6 ... 8. Sc6 ... 9. Se7 ... 10. Ka5 ... 11. Kb4 ... 12. Ka3 ... 13. Kb2 ... 14. Kc1 ... 15. Kc2 ... 16. Kb2 ... 17. Ka3 ... 18. Kb4 ... 19. Ka5 ... 20. Kb6 ... 21. Kc7 ... 22. Sc6 ... 23. Scb4 ... 24. Kd8 ... 25. Ke7 ... 26. Kf8 ... 27. Kg7 Th6 28. Kxh6 Dd5 29. Sxd5 Sf6,S~ 30. Sf2#
play all play one stop play next play all
(*) Um das nunmehr erforderliche Tempo zu gzwinnrn muss der wK rin weißes Feld erreichen, ohn sich aber dem verderblichen Schach des Se4 auszusetzen; Schwarz zieht beständig Th5-h6-h5
Mirko Degenkolbe: "14.Kc1 & 15.Kc2, aber warum soll dann nicht auch 14.Kc2 & 15.Kc1 gehen? Was übersehe ich da? Duale wie z.B. 21.Kc7 und 21.Scb4, die auch auf dem "Hinweg" des Königs zu verzeichnen sind.
Trotz allem, wie immer eine sehr große Leistung des Ausnahmekomponisten Blathy!"
msterkowiec: I think "duals" like 14.Kc1/c2 15.Kc2/c1 are inherent for this position type (Sea Snake/dual zugzwang with pendulum black figure, typically rook, and white king struggling to lose tempo) when white king turns back/loses tempo. What's interesting in one of the most lengthy moremovers of this type (http://www.yacpdb.org/?id=278027 #210 rBb5/P2p4/P2Ppp1p/1B1p1p1B/2prn3/KRnk4/3p4/b4N1N) it is black bishop that is the "pendulum".

Manoeuver by white knight may be considered an enhancement to this position type (white knight has to move away from white king's path) however the side effect of this enhancement is this slight dual (both in 7th and 21th move) (2021-05-29)
Alfred Pfeiffer: Im Nachdruck von 1890 ist die Forderung verdruckt (#13) doch die Lösung ist ok (ä30) (2021-09-07)
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comment
Keywords: Tempo Winning Manouevre
Genre: n#
FEN: qB5K/P6p/P1N3p1/6pr/4npRp/3N1P1k/6nr/5B1b
Reprints: 9 Vielzügige Schachaufgaben 1890
Input: Felber, Volker, 2021-05-29
Last update: James Malcom, 2022-04-12 more...
7 - P1410779
Ottó Titusz Bláthy
47 Vielzügige Schachaufgaben 1890
P1410779
(5+14) cooked
#169
1. Lc1 Ta6 2. Kb7 Ta5 3. Kc8 Ta6 4. Kc7 Ta5 5. Kb7 g5 6. Kc8 Ta6 7. Kc7 Ta5 8. Kb7 e5 9. Kc8 Ta6 10. Kd7 Ta5 11. Ke8 Ta6 12. Kf7 Ta5 13. Kg8 Ta6 14. Kh7 Ta5 15. Kh8 Ta6 16. Kg8 Ta5 17. Kf7 Ta6 18. Ke8 Ta5 19. Kd7 Ta6 20. Kc8 Ta5 21. Kb7 e4 22. Kc8 Ta6 23. Kd7 Ta5 24. Ke8 Ta6 25. Kf7 Ta5 26. Kg8 Ta6 27. Kh7 Ta5 28. Kh8 Ta6 29. Kg8 Ta5 30. Kf7 Ta6 31. Ke8 Ta5 32. Kd7 Ta6 33. Kc8 Ta5 34. Kb7 e3 35. Kc8 Ta6 36. Kd7 Ta5 37. Ke8 Ta6 38. Kf7 Ta5 39. Kg8 Ta6 40. Kh7 Ta5 41. Kh8 Ta6 42. Kg8 Ta5 43. Kf7 Ta6 44. Ke8 Ta5 45. Kd7 Ta6 46. Kc8 Ta5 47. Kb7 e2 48. Kc8 Ta6 49. Kd7 Ta5 50. Ke8 Ta6 51. Kf7 Ta5 52. Kg8 Ta6 53. Kh7 Ta5 54. Kh8 Ta6 55. Kg8 Ta5 56. Kf7 Ta6 57. Ke8 Ta5 58. Kd7 Ta6 59. Kc8 Ta5 60. Kb7 g4 61. Kc8 Ta6 62. Kd7 Ta5 63. Ke8 Ta6 64. Kf7 Ta5 65. Kg8 Ta6 66. Kh7 Ta5 67. Kh8 Ta6 68. Kg8 Ta5 69. Kf7 Ta6 70. Ke8 Ta5 71. Kd7 Ta6 72. Kc8 Ta5 73. Kb7 g3 74. Kc8 Ta6 75. Kd7 Ta5 76. Ke8 Ta6 77. Kf7 Ta5 78. Kg8 Ta6 79. Kh7 Ta5 80. Kh8 Ta6 81. Kg8 Ta5 82. Kf7 Ta6 83. Ke8 Ta5 84. Kd7 Ta6 85. Kc8 Ta5 86. Kb7 g2 87. Kc8 Ta6 88. Kd7 Ta5 89. Ke8 Ta6 90. Kf7 Ta5 91. Kg8 Ta6 92. Kh7 Ta5 93. Kh8 Ta6 94. Kg8 Ta5 95. Kf7 Ta6 96. Ke8 Ta5 97. Kd7 Ta6 98. Kc8 Ta5 99. Kb7 e6 100. Kc8 Ta6 101. Kc7 Ta5 102. Kb7 e5 103. Kc8 Ta6 104. Kd7 Ta5 105. Ke8 Ta6 106. Kf7 Ta5 107. Kg8 Ta6 108. Kh7 Ta5 109. Kh8 Ta6 110. Kg8 Ta5 111. Kf7 Ta6 112. Ke8 Ta5 113. Kd7 Ta6 114. Kc8 Ta5 115. Kb7 e4 116. Kc8 Ta6 117. Kd7 Ta5 118. Ke8 Ta6 119. Kf7 Ta5 120. Kg8 Ta6 121. Kh7 Ta5 122. Kh8 Ta6 123. Kg8 Ta5 124. Kf7 Ta6 125. Ke8 Ta5 126. Kd7 Ta6 127. Kc8 Ta5 128. Kb7 e3 129. Kc8 Ta6 130. Kd7 Ta5 131. Ke8 Ta6 132. Kf7 Ta5 133. Kg8 Ta6 134. Kh7 Ta5 135. Kh8 Ta6 136. Kg8 Ta5 137. Kf7 Ta6 138. Ke8 Ta5 139. Kd7 Ta6 140. Kc8 Ta5 141. Kb7 g5 142. Kc8 Ta6 143. Kd7 Ta5 144. Ke8 Ta6 145. Kf7 Ta5 146. Kg6 Ta6 147. Kf6 Ta5 148. Kf7 Ta6 149. Ke8 Ta5 150. Kd7 Ta6 151. Kc8 Ta5 152. Kb7 g4 153. Kc8 Ta6 154. Kd7 Ta5 155. Ke8 Ta6 156. Kf7 Ta5 157. Kg6 Ta6 158. Kh5 Ta5 159. Kxg4 Ta6 160. Kh5 Ta5 161. Kg6 Ta6 162. Kf6 Ta5 163. Kf7 Ta6 164. Ke8 Ta5 165. Kd7 Ta6 166. Kc8 Ta5 167. Kb7 a6 168. Ka8 Sc6 169. Sxe2#
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Cook: Nebenlösung in 163 Zügen:
1. Lc1 e5! 2. Kb7 g5 3. Kc8 Ta6 4. Kd7 Ta5 5. Ke8 Ta6 6. Kf7 Ta5 7. Kg6 Ta6 8. Kh7 Ta5 9. Kh8 Ta6 10. Kg8 Ta5 11. Kf7 Ta6 12. Ke8 Ta5 13. Kd7 Ta6 14. Kc8 Ta5 15. Kb7 e4 16. Kc8 Ta6 17. Kd7 Ta5 18. Ke8 Ta6 19. Kf7 Ta5 20. Kg6 Ta6 21. Kh7 Ta5 22. Kh8 Ta6 23. Kg8 Ta5 24. Kf7 Ta6 25. Ke8 Ta5 26. Kd7 Ta6 27. Kc8 Ta5 28. Kb7 e3 29. Kc8 Ta6 30. Kd7 Ta5 31. Ke8 Ta6 32. Kf7 Ta5 33. Kg6 Ta6 34. Kh7 Ta5 35. Kh8 Ta6 36. Kg8 Ta5 37. Kf7 Ta6 38. Ke8 Ta5 39. Kd7 Ta6 40. Kc8 Ta5 41. Kb7 e2 42. Kc8 Ta6 43. Kd7 Ta5 44. Ke8 Ta6 45. Kf7 Ta5 46. Kg6 Ta6 47. Kh7 Ta5 48. Kh8 Ta6 49. Kg8 Ta5 50. Kf7 Ta6 51. Ke8 Ta5 52. Kd7 Ta6 53. Kc8 Ta5 54. Kb7 g4 55. Kc8 Ta6 56. Kd7 Ta5 57. Ke8 Ta6 58. Kf7 Ta5 59. Kg6 Ta6 60. Kh7 Ta5 61. Kh8 Ta6 62. Kg8 Ta5 63. Kf7 Ta6 64. Ke8 Ta5 65. Kd7 Ta6 66. Kc8 Ta5 67. Kb7 g3 68. Kc8 Ta6 69. Kd7 Ta5 70. Ke8 Ta6 71. Kf7 Ta5 72. Kg6 Ta6 73. Kh7 Ta5 74. Kh8 Ta6 75. Kg8 Ta5 76. Kf7 Ta6 77. Ke8 Ta5 78. Kd7 Ta6 79. Kc8 Ta5 80. Kb7 g2 81. Kc8 Ta6 82. Kd7 Ta5 83. Ke8 Ta6 84. Kf7 Ta5 85. Kg6 Ta6 86. Kh7 Ta5 87. Kh8 Ta6 88. Kg8 Ta5 89. Kf7 Ta6 90. Ke8 Ta5 91. Kd7 Ta6 92. Kc8 Ta5 93. Kb7 e6 94. Kc7 Ta6 95. Kc8 Ta5 96. Kb7 e5 97. Kc8 Ta6 98. Kd7 Ta5 99. Ke8 Ta6 100. Kf7 Ta5 101. Kg6 Ta6 102. Kh7 Ta5 103. Kh8 Ta6 104. Kg8 Ta5 105. Kf7 Ta6 106. Ke8 Ta5 107. Kd7 Ta6 108. Kc8 Ta5 109. Kb7 e4 110. Kc8 Ta6 111. Kd7 Ta5 112. Ke8 Ta6 113. Kf7 Ta5 114. Kg6 Ta6 115. Kh7 Ta5 116. Kh8 Ta6 117. Kg8 Ta5 118. Kf7 Ta6 119. Ke8 Ta5 120. Kd7 Ta6 121. Kc8 Ta5 122. Kb7 e3 123. Kc8 Ta6 124. Kd7 Ta5 125. Ke8 Ta6 126. Kf7 Ta5 127. Kg6 Ta6 128. Kh7 Ta5 129. Kh8 Ta6 130. Kg8 Ta5 131. Kf7 Ta6 132. Ke8 Ta5 133. Kd7 Ta6 134. Kc8 Ta5 135. Kb7 g5 136. Kc8 Ta6 137. Kd7 Ta5 138. Ke8 Ta6 139. Kf7 Ta5 140. Kf6 Ta6 141. Kg6 Ta5 142. Kf7 Ta6 143. Ke8 Ta5 144. Kd7 Ta6 145. Kc8 Ta5 146. Kb7 g4 147. Kc8 Ta6 148. Kd7 Ta5 149. Ke8 Ta6 150. Kf7 Ta5 151. Kg6 Ta6 152. Kh5 Ta5 153. Kxg4 Ta6 154. Kh5 Ta5 155. Kg6 Ta6 156. Kf6 Ta5 157. Kf7 Ta6 158. Ke8 Ta5 159. Kd7 Ta6 160. Kc8 Ta5 161. Kb7 Ta6 162. Kxa6 Sc6 163. Sxe2#
1. ... Ta6? 2. Kb7 Ta5 3. Kc7! Ta6 4. Kc8 Ta5 5. Kd7 Ta6 6. Ke8 Ta5 7. Kf7 g5 8. Kg6 g4 9. Kf7 Ta6 10. Ke8 Ta5 11. Kd7 Ta6 12. Kc8 Ta5 13. Kb7 e5 14. Kc8 Ta6 15. Kd7 Ta5 16. Ke8 Ta6 17. Kf7 Ta5 18. Kg6 Ta6 19. Kh7 Ta5 20. Kh8 Ta6 21. Kg8 Ta5 22. Kf7 Ta6 23. Ke8 Ta5 24. Kd7 Ta6 25. Kc8 Ta5 26. Kb7 g3 27. Kc8 Ta6 28. Kd7 Ta5 29. Ke8 Ta6 30. Kf7 Ta5 31. Kg6 Ta6 32. Kh7 Ta5 33. Kh8 Ta6 34. Kg8 Ta5 35. Kf7 Ta6 36. Ke8 Ta5 37. Kd7 Ta6 38. Kc8 Ta5 39. Kb7 g2 40. Kc8 Ta6 41. Kd7 Ta5 42. Ke8 Ta6 43. Kf7 Ta5 44. Kg6 Ta6 45. Kh7 Ta5 46. Kh8 Ta6 47. Kg8 Ta5 48. Kf7 Ta6 49. Ke8 Ta5 50. Kd7 Ta6 51. Kc8 Ta5 52. Kb7 e4 53. Kc8 Ta6 54. Kd7 Ta5 55. Ke8 Ta6 56. Kf7 Ta5 57. Kg6 Ta6 58. Kh7 Ta5 59. Kh8 Ta6 60. Kg8 Ta5 61. Kf7 Ta6 62. Ke8 Ta5 63. Kd7 Ta6 64. Kc8 Ta5 65. Kb7 e3 66. Kc8 Ta6 67. Kd7 Ta5 68. Ke8 Ta6 69. Kf7 Ta5 70. Kg6 Ta6 71. Kh7 Ta5 72. Kh8 Ta6 73. Kg8 Ta5 74. Kf7 Ta6 75. Ke8 Ta5 76. Kd7 Ta6 77. Kc8 Ta5 78. Kb7 e2 79. Kc8 Ta6 80. Kd7 Ta5 81. Ke8 Ta6 82. Kf7 Ta5 83. Kg6 Ta6 84. Kh7 Ta5 85. Kh8 Ta6 86. Kg8 Ta5 87. Kf7 Ta6 88. Ke8 Ta5 89. Kd7 Ta6 90. Kc8 Ta5 91. Kb7 e6 92. Kc7 Ta6 93. Kc8 Ta5 94. Kb7 e5 95. Kc8 Ta6 96. Kd7 Ta5 97. Ke8 Ta6 98. Kf7 Ta5 99. Kg6 Ta6 100. Kh7 Ta5 101. Kh8 Ta6 102. Kg8 Ta5 103. Kf7 Ta6 104. Ke8 Ta5 105. Kd7 Ta6 106. Kc8 Ta5 107. Kb7 e4 108. Kc8 Ta6 109. Kd7 Ta5 110. Ke8 Ta6 111. Kf7 Ta5 112. Kg6 Ta6 113. Kh7 Ta5 114. Kh8 Ta6 115. Kg8 Ta5 116. Kf7 Ta6 117. Ke8 Ta5 118. Kd7 Ta6 119. Kc8 Ta5 120. Kb7 e3 121. Kc8 Ta6 122. Kd7 Ta5 123. Ke8 Ta6 124. Kf7 Ta5 125. Kg6 Ta6 126. Kh7 Ta5 127. Kh8 Ta6 128. Kg8 Ta5 129. Kf7 Ta6 130. Ke8 Ta5 131. Kd7 Ta6 132. Kc8 Ta5 133. Kb7 g5 134. Kc8 Ta6 135. Kd7 Ta5 136. Ke8 Ta6 137. Kf7 Ta5 138. Kf6 Ta6 139. Kg6 Ta5 140. Kf7 Ta6 141. Ke8 Ta5 142. Kd7 Ta6 143. Kc8 Ta5 144. Kb7 g4 145. Kc8 Ta6 146. Kd7 Ta5 147. Ke8 Ta6 148. Kf7 Ta5 149. Kg6 Ta6 150. Kh5 Ta5 151. Kxg4 Ta6 152. Kh5 Ta5 153. Kg6 Ta6 154. Kf6 Ta5 155. Kf7 Ta6 156. Ke8 Ta5 157. Kd7 Ta6 158. Kc8 Ta5 159. Kb7 Ta6 160. Kxa6 Sc6 161. Sxe2#
8. ... Ta6 9. Kxg5 Ta5 10. Kh5 Ta6 11. Kg6 Ta5 12. Kf7 Ta6 13. Ke8 Ta5 14. Kd7 Ta6 15. Kc8 Ta5 16. Kb7 e5 17. Kc8 Ta6 18. Kd7 Ta5 19. Ke8 Ta6 20. Kf7 Ta5 21. Kg6 Ta6 22. Kh7 Ta5 23. Kh8 Ta6 24. Kg8 Ta5 25. Kf7 Ta6 26. Ke8 Ta5 27. Kd7 Ta6 28. Kc8 Ta5 29. Kb7 e4 30. Kc8 Ta6 31. Kd7 Ta5 32. Ke8 Ta6 33. Kf7 Ta5 34. Kg6 Ta6 35. Kh7 Ta5 36. Kh8 Ta6 37. Kg8 Ta5 38. Kf7 Ta6 39. Ke8 Ta5 40. Kd7 Ta6 41. Kc8 Ta5 42. Kb7 e3 43. Kc8 Ta6 44. Kd7 Ta5 45. Ke8 Ta6 46. Kf7 Ta5 47. Kg6 Ta6 48. Kh7 Ta5 49. Kh8 Ta6 50. Kg8 Ta5 51. Kf7 Ta6 52. Ke8 Ta5 53. Kd7 Ta6 54. Kc8 Ta5 55. Kb7 e2 56. Kc8 Ta6 57. Kd7 Ta5 58. Ke8 Ta6 59. Kf7 Ta5 60. Kg6 Ta6 61. Kh7 Ta5 62. Kh8 Ta6 63. Kg8 Ta5 64. Kf7 Ta6 65. Ke8 Ta5 66. Kd7 Ta6 67. Kc8 Ta5 68. Kb7 e6 69. Kc7 Ta6 70. Kc8 Ta5 71. Kb7 e5 72. Kc8 Ta6 73. Kd7 Ta5 74. Ke8 Ta6 75. Kf7 Ta5 76. Kg6 Ta6 77. Kh7 Ta5 78. Kh8 Ta6 79. Kg8 Ta5 80. Kf7 Ta6 81. Ke8 Ta5 82. Kd7 Ta6 83. Kc8 Ta5 84. Kb7 e4 85. Kc8 Ta6 86. Kd7 Ta5 87. Ke8 Ta6 88. Kf7 Ta5 89. Kg6 Ta6 90. Kh7 Ta5 91. Kh8 Ta6 92. Kg8 Ta5 93. Kf7 Ta6 94. Ke8 Ta5 95. Kd7 Ta6 96. Kc8 Ta5 97. Kb7 e3 98. Kc8 Ta6 99. Kd7 Ta5 100. Ke8 Ta6 101. Kf7 Ta5 102. Kg6 Ta6 103. Kh7 Ta5 104. Kh8 Ta6 105. Kg8 Ta5 106. Kf7 Ta6 107. Ke8 Ta5 108. Kd7 Ta6 109. Kc8 Ta5 110. Kb7 g5 111. Kc8 Ta6 112. Kd7 Ta5 113. Ke8 Ta6 114. Kf7 Ta5 115. Kf6 Ta6 116. Kg6 Ta5 117. Kf7 Ta6 118. Ke8 Ta5 119. Kd7 Ta6 120. Kc8 Ta5 121. Kb7 g4 122. Kc8 Ta6 123. Kd7 Ta5 124. Ke8 Ta6 125. Kf7 Ta5 126. Kg6 Ta6 127. Kh5 g3 128. Kg6 Ta5 129. Kf7 Ta6 130. Ke8 Ta5 131. Kd7 Ta6 132. Kc8 Ta5 133. Kb7 g2 134. Kc8 Ta6 135. Kd7 Ta5 136. Ke8 Ta6 137. Kf7 Ta5 138. Kf6 Ta6 139. Kg6 Ta5 140. Kf7 Ta6 141. Ke8 Ta5 142. Kd7 Ta6 143. Kc8 Ta5 144. Kb7 Ta6 145. Kxa6 Sc6 146. Sxe2#
9. ... Sf3+ 10. Sgxf3 Ta5 11. Kf4 Ta6, ~ 12. Ke3
10. ... e5 11. Kf5 Ta5, ~ 12. Ke4
10. ... g6 11. Kf4 Ta5, ~ 12. Ke3
Olaf Jenkner: Diese Nebenlösung ist wahrscheinlich noch unbekannt.
Die Aufgabe wäre korrekt mit der Zusatzbedingung: "Weiße Springer ziehen nicht außer im Mattzug".
Weiß kann seinen König frech einem Gegenschach aussetzen und spart damit Züge ein (9. ... Sf3+). (2023-07-08)
msterkowiec: I think it is a great finding that this is #163 (not #169). And really surprising that the position has more complexity and subtleness than the superb composer/engineer expected. I adjusted/enhanced accordingly the piece of software I develop and I can confirm that the problem can be successfully solved as #163. There are only minor details that seem to not match with the variants presented above: 1... e5 does not seem really the best defence. It looks like e7-e5 can be postponed e.g. this far: 1. Bc1 Ra6 2. Kb7 Ra5 3. Kc7 Ra6 4. Kd8 Ra5 5. Ke8 Ra6 6. Kf7 g5 7. Kg6 e5 still not allowing for mate shorter than #163. As a consequence variant 1... Ra6? should rather not be marked with question mark as a weak(er) defence. (2023-07-28)
Olaf Jenkner: 1... e5 is the best defence because the variation is 163 moves long.
Your proposal 1. Bc1 Ra6 2. Kb7 Ra5 3. Kc7 Ra6 4. Kd8 Ra5 5. Ke8 Ra6 6. Kf7 g5 7. Kg6 e5
shows wrong play by white. As you can see in the solution above, 4. Kd8 is not correct. (2023-08-04)
msterkowiec: Yes, you're right, 4.Kd8 was an obvious typo, anyway indeed looks like 1...e5 cannot be postponed without causing a short-mate. Now I can see that computer analysis shows it unambiguously - and finally my intuition also adjusted accordingly: after 1. Bc1 Ra6? 2. Kb7 Ra5 3. Kc7! white king is able to take advantage of e6-e5 not done and lose a tempo immediately after 3... e5 by 4. Kc8! (after 1... e5! this manoeuvre is no longer possible) (2023-08-04)
comment

Genre: n#
FEN: K7/p3p1p1/1p2p1p1/rp4B1/brpn4/Rnk5/8/4N1N1
Input: Olaf Jenkner, 2023-07-05
Last update: Rainer Staudte, 2023-07-09 more...
8 - P1410827
Ottó Titusz Bláthy
48 Vielzügige Schachaufgaben 1890
P1410827
(10+15)
#210
1. Ld1 h5 2. Kb4 Lb2 3. Ka5 Lc1 4. Kb6 Lb2 5. Kc7 Lc1 6. Kd8 Lb2 7. Ke7 Lc1 8. Kf8 Lb2 9. Kg7 Lc1 10. Kg8 Lb2 11. Kf8 Lc1 12. Ke7 Lb2 13. Kd8 Lc1 14. Kc7 Lb2 15. Kb6 Lc1 16. Ka5 Lb2 17. Kb4 La1 18. Ka3 f4 19. Kb4 Lb2 20. Ka5 Lc1 21. Kb6 Lb2 22. Kc7 Lc1 23. Kd8 Lb2 24. Ke7 Lc1 25. Kf8 Lb2 26. Kg7 Lc1 27. Kg8 Lb2 28. Kf8 Lc1 29. Ke7 Lb2 30. Kd8 Lc1 31. Kc7 Lb2 32. Kb6 Lc1 33. Ka5 Lb2 34. Kb4 La1 35. Ka3 f5 36. Kb4 Lb2 37. Ka5 Lc1 38. Kb6 Lb2 39. Kc7 Lc1 40. Kd8 Lb2 41. Ke7 Lc1 42. Kf8 Lb2 43. Kg7 Lc1 44. Kh6 Lb2 45. Kg6 Lc1 46. Kg7 Lb2 47. Kf8 Lc1 48. Ke7 Lb2 49. Kd8 Lc1 50. Kc7 Lb2 51. Kb6 Lc1 52. Ka5 Lb2 53. Kb4 La1 54. Ka3 h4 55. Kb4 Lb2 56. Ka5 Lc1 57. Kb6 Lb2 58. Kc7 Lc1 59. Kd8 Lb2 60. Ke7 Lc1 61. Kf8 Lb2 62. Kg7 Lc1 63. Kh6 Lb2 64. Kg6 Lc1 65. Kg7 Lb2 66. Kf8 Lc1 67. Ke7 Lb2 68. Kd8 Lc1 69. Kc7 Lb2 70. Kb6 Lc1 71. Ka5 Lb2 72. Kb4 La1 73. Ka3 h3 74. Kb4 Lb2 75. Ka5 Lc1 76. Kb6 Lb2 77. Kc7 Lc1 78. Kd8 Lb2 79. Ke7 Lc1 80. Kf8 Lb2 81. Kg7 Lc1 82. Kh6 Lb2 83. Kg6 Lc1 84. Kg7 Lb2 85. Kf8 Lc1 86. Ke7 Lb2 87. Kd8 Lc1 88. Kc7 Lb2 89. Kb6 Lc1 90. Ka5 Lb2 91. Kb4 La1 92. Ka3 h2 93. Kb4 Lb2 94. Ka5 Lc1 95. Kb6 Lb2 96. Kc7 Lc1 97. Kd8 Lb2 98. Ke7 Lc1 99. Kf8 Lb2 100. Kg7 Lc1 101. Kh6 Lb2 102. Kg6 Lc1 103. Kg7 Lb2 104. Kf8 Lc1 105. Ke7 Lb2 106. Kd8 Lc1 107. Kc7 Lb2 108. Kb6 Lc1 109. Ka5 Lb2 110. Kb4 La1 111. Ka3 f3 112. Kb4 Lb2 113. Ka5 Lc1 114. Kb6 Lb2 115. Kc7 Lc1 116. Kd8 Lb2 117. Ke7 Lc1 118. Kf8 Lb2 119. Kg7 Lc1 120. Kh6 Lb2 121. Kg6 Lc1 122. Kg7 Lb2 123. Kf8 Lc1 124. Ke7 Lb2 125. Kd8 Lc1 126. Kc7 Lb2 127. Kb6 Lc1 128. Ka5 Lb2 129. Kb4 La1 130. Ka3 f2 131. Kb4 Lb2 132. Ka5 Lc1 133. Kb6 Lb2 134. Kc7 Lc1 135. Kd8 Lb2 136. Ke7 Lc1 137. Kf8 Lb2 138. Kg7 Lc1 139. Kh6 Lb2 140. Kg6 Lc1 141. Kg7 Lb2 142. Kf8 Lc1 143. Ke7 Lb2 144. Kd8 Lc1 145. Kc7 Lb2 146. Kb6 Lc1 147. Ka5 Lb2 148. Kb4 La1 149. Ka3 f4 150. Kb4 Lb2 151. Ka5 Lc1 152. Kb6 Lb2 153. Kc7 Lc1 154. Kd8 Lb2 155. Ke7 Lc1 156. Kf8 Lb2 157. Kg7 Lc1 158. Kh6 Lb2 159. Kg6 Lc1 160. Kg7 Lb2 161. Kf8 Lc1 162. Ke7 Lb2 163. Kd8 Lc1 164. Kc7 Lb2 165. Kb6 Lc1 166. Ka5 Lb2 167. Kb4 La1 168. Ka3 f3 169. Kb4 Lb2 170. Ka5 Lc1 171. Kb6 Lb2 172. Kc7 Lc1 173. Kd8 Lb2 174. Ke7 Lc1 175. Kf8 Lb2 176. Kg7 Lc1 177. Kh6 Lb2 178. Kg6 Lc1 179. Kg7 Lb2 180. Kf8 Lc1 181. Ke7 Lb2 182. Kd8 Lc1 183. Kc7 Lb2 184. Kb6 Lc1 185. Ka5 Lb2 186. Kb4 La1 187. Ka3 e5 188. Kb4 Lb2 189. Ka5 Lc1 190. Kb6 Lb2 191. Kc7 Lc1 192. Kd8 Lb2 193. Ke7 Lc1 194. Kf8 Lb2 195. Kg7 Lc1 196. Kh6 Lb2 197. Kg6 Lc1 198. Kg7 Lb2 199. Kf8 Lc1 200. Ke7 Lb2 201. Kd8 Lc1 202. Kc7 Lb2 203. Kb6 Lc1 204. Ka5 Lb2 205. Kb4 La1 206. Ka3 Lxa6 207. Lxa6 Txa7 208. Lxa7 Lb2+ 209. Kxb2 Sc5 210. Sxf2#
play all play one stop play next play all
Henrik Juel: The position seems to be illegal, unfortunately
The single white capture was bxDa, and he promoted to L on a light square (c8 or g8)
Black pawns captured all six missing white men by axbxc, bxcxd, cxd, and gxf
The absence of [Pe2,Ph2] cannot be explained (2023-07-09)
Olaf Jenkner: Blathy didn't care about that.
I tested the last 170 moves and found no shorter solution.
The shortcut as in #169 (P1410779) doesn't work in this case.
If the king captures h5 to save time, then Sg3+ Sxg3? can not
guard square e4 because pawn f4 or f5. (2023-07-09)
Olaf Jenkner: Meanwhile Gustav is able to manage problems with 210 moves.
The solution was found at the same length. Of course it's far away from C+. (2023-07-10)
Henrik Juel: So we have a dualistic problem with illegal starting position
Maybe Blathy did not worry that much about duals either (2023-07-10)
Olaf Jenkner: I think the line above is dualfree, if we do not mention the minor duals near the triangle manoeuver. (2023-07-10)
more ...
comment

Genre: n#
FEN: rBb5/P2p4/P2Ppp1p/1B1p1p1B/2prn3/KRnk4/3p4/b4N1N
Input: Olaf Jenkner, 2023-07-09
Last update: Olaf Jenkner, 2023-07-09 more...
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The problems of this query have been registered by the following contributors:

Frank Müller (3)
James Malcom (2)
Felber, Volker (1)
Olaf Jenkner (2)