No.1621
James Malcom
(USA)
Warm welcome to James!
Original Fairy problems
JF-2021-I:
01.01.2021 - 30.06.2021
No. 1621 James Malcom
USA
original - 12.06.2021
black Bh1f8 Pg2a4h6f6g7e7c7a7 Kh8
white Kg1 Ph2f2a2g5e6c6 Bf7
s=74 8+11
Solution: (click to show/hide)
Of course, within the transposition, we have the natural triangulation dual of Ba6 and Bb7.
James is already a veteran in the matplus forum, PDB and Andrew’s Zoom calls! Welcome to him on his first appearance in JF!
Is Bh1 really necessary?
It’s sole purpose is to ensure that the White king cannot move to create shorter solutions. For a C- problem it is an important safeguard as useless as it probably is.
George Sphicas published a s=154 in Strategems in 2003. It’s not marked as C- in Winchloe.
[Round “-“]
[White “-“]
[Black “-“]
[Result “1/2-1/2”]
[FEN “8/p1pr4/1p6/2p1p1R1/nqp4k/2b2Q2/r1p1bP1K/2n5 w – – 0 1”]
[SetUp “1”]
{————–
. . . . . . . .
p . p r . . . .
. p . . . . . .
. . p . p . R .
n q p . . . . k
. . b . . Q . .
r . p . b P . K
. . n . . . . .
white to play
————–}
1. Rg4+ Kh5 2. Qf5+ Kh6 3. Qg5+ Kh7 4. Qg8+ Kh6 5. Qh8+ Rh7 6. Qf6+ Kh5 7.
Qf5+ Kh6 8. Rh4+ Kg7 9. Rxh7+ Kg8 10. Qg6+ Kf8 11. Qg7+ Ke8 12. Qf7+ Kd8
13. Qxc7+ Ke8 14. Qf7+ Kd8 15. Qe7+ Kc8 16. Qd7+ Kb8 17. Qxa7+ Kc8 18. Qd7+
Kb8 19. Qc7+ Ka8 20. Qc6+ Kb8 21. Rb7+ Ka8 22. Rxb6+ Ka7 23. Ra6+ Kb8 24.
Qa8+ Kc7 25. Rc6+ Kd7 26. Qc8+ Ke7 27. Re6+ Kf7 28. Qe8+ Kg7 29. Rg6+ Kh7
30. Qf7+ Kh8 31. Qf6+ Kh7 32. Rg7+ Kh8 33. Rg3+ Kh7 34. Qg6+ Kh8 35. Rh3+
Bh5 36. Qf6+ Kg8 37. Rg3+ Kh7 38. Rg7+ Kh8 39. Rg5+ Kh7 40. Rxh5+ Kg8 41.
Qg6+ Kf8 42. Rh8+ Ke7 43. Re8+ Kd7 44. Qe6+ Kc7 45. Re7+ Kb8 46. Qd6+ Ka8
47. Qa6+ Kb8 48. Qa7+ Kc8 49. Qd7+ Kb8 50. Qc7+ Ka8 51. Qc8+ Qb8 52. Qa6+
Qa7 53. Rxa7+ Kb8 54. Rb7+ Kc8 55. Qc6+ Kd8 56. Rd7+ Ke8 57. Qe6+ Kf8 58.
Rf7+ Kg8 59. Qg6+ Kh8 60. Qh6+ Kg8 61. Rg7+ Kf8 62. Qf6+ Ke8 63. Re7+ Kd8
64. Qd6+ Kc8 65. Rc7+ Kb8 66. Rxc5+ Ka8 67. Rc8+ Ka7 68. Rc7+ Ka8 69. Qa6+
Kb8 70. Rb7+ Kc8 71. Qc6+ Kd8 72. Rd7+ Ke8 73. Qe6+ Kf8 74. Rf7+ Kg8 75.
Qg6+ Kh8 76. Qh6+ Kg8 77. Rg7+ Kf8 78. Qf6+ Ke8 79. Re7+ Kd8 80. Qd6+ Kc8
81. Rc7+ Kb8 82. Rxc4+ Ka8 83. Rc8+ Ka7 84. Rc7+ Ka8 85. Qa6+ Kb8 86. Rb7+
Kc8 87. Qc6+ Kd8 88. Rd7+ Ke8 89. Qe6+ Kf8 90. Rf7+ Kg8 91. Qg6+ Kh8 92.
Qh6+ Kg8 93. Rg7+ Kf8 94. Qf6+ Ke8 95. Re7+ Kd8 96. Qd6+ Kc8 97. Rc7+ Kb8
98. Rxc3+ Ka8 99. Rc8+ Ka7 100. Rc7+ Ka8 101. Qa6+ Kb8 102. Rb7+ Kc8 103.
Qc6+ Kd8 104. Rd7+ Ke8 105. Qe6+ Kf8 106. Rf7+ Kg8 107. Qg6+ Kh8 108. Qh6+
Kg8 109. Rg7+ Kf8 110. Qf6+ Ke8 111. Re7+ Kd8 112. Qd6+ Kc8 113. Rc7+ Kb8
114. Rxc2+ Ka8 115. Rc8+ Ka7 116. Rc7+ Ka8 117. Qa6+ Kb8 118. Rb7+ Kc8 119.
Qc6+ Kd8 120. Rd7+ Ke8 121. Qe6+ Kf8 122. Rf7+ Kg8 123. Qg6+ Kh8 124. Qh6+
Kg8 125. Rg7+ Kf8 126. Qf6+ Ke8 127. Re7+ Kd8 128. Qd6+ Kc8 129. Rc7+ Kb8
130. Rxc1+ Ka8 131. Rc8+ Ka7 132. Rc7+ Kb8 133. Rd7+ Ka8 134. Qa6+ Kb8 135.
Rb7+ Kc8 136. Rb2+ Kc7 137. Rxa2 Kb8 138. Rxa4 e4 139. Qb6+ Kc8 140. Ra8+
Kd7 141. Rd8+ Ke7 142. Qd6+ Kf7 143. Rf8+ Kg7 144. Qf6+ Kh7 145. Qh8+ Kg6
146. Rf6+ Kg5 147. Qh6+ Kg4 148. f3+ exf3 149. Qg6+ Kh4 150. Kh1 f2 151.
Rf4+ Kh3 152. Rf3+ Kh4 153. Rh3+ Kxh3 154. Qg3+ Kxg3
{Xboard adjudication: Stalemate} 1/2-1/2
Thanks Joost. You have reminded me of a s=165 by Sphicas too that is in PDB: https://pdb.dieschwalbe.de/P1329015 However the solution is not given. I won’t be surprised if either of these productions are cooked.