Author: Mark Rawlings
Date: 10:15:20 01/14/06
Go up one level in this thread
On January 14, 2006 at 08:59:29, Marc Bourzutschky wrote: >kqnnkqn, while generally a draw, contains positions that require up to 282 moves >to capture or mate. This brings it very close to the current record holder >krrnkrr which requires up to 290 moves. kqnnkqb looks to be in third place now >with 272 moves, but that database has not yet been verified. kqnnkqn took about >8.5 days to generate on a 3.8 GHZ Pentium machine, using Yakov Konoval's >program. > >Note that play after the capture on move 282 will not be the same as would be >obtained from a Nalimov database, because the latter maximizes distance to mate >rather than distance to mate or capture. So, in other words, if the Nalimov database was computed for this, it may be a mate in greater than 288, however there would be a capture in < 282, if I understand correctly? Keep up the great work on the databases, Marc! These long mates are just fascinating to me where there are hundreds of seemingly random moves that are somehow progressing to mate... Thanks, Mark > >[D] 5n1N/3k4/N7/8/7Q/8/3K4/1q6 w - - 0 1 > >[Event "W +282"] >[Date "????.??.??"] >[White "QNN"] >[Black "QN"] >[Result "1-0"] >[SetUp "1"] >[FEN "5n1N/3k4/N7/8/7Q/8/3K4/1q6 w - - 0 1"] > >1. Qa4+! Ke6 2. Qe8+! Kd5 3. Qd8+! Kc4 4. Qc7+ Kd5 5. Qa5+ Kd6 6. Qa3+ Kd7 7. >Nc5+ Kc7 8. Nf7! Qb6 9. Qg3+! Kc6 10. Nd3! Qa5+ 11. Ke2! Qa2+ 12. Ke3 Qe6+ 13. >Kd2! Qa2+ 14. Kc3 Qa3+ 15. Kc4 Qa2+ 16. Kb4 Qb1+ 17. Kc3 Qa1+ 18. Kb3 Qd4 19. >Nb4+! Kd7 20. Ne5+! Kc8 21. Nec6! Qd1+ 22. Kc3 Nd7 23. Ne7+! Kb7 24. Qg2+! Ka7 >25. Qa2+ Kb8 26. Qg8+ Ka7 27. Nec6+ Kb7 28. Na5+! Ka7 29. Nbc6+ Kb6 30. Qd8+! >Kc5 31. Qe7+ Kb6 32. Qb4+ Kc7 33. Qb7+! Kd6 34. Nc4+ Kc5 35. Nd2! Qc1+ 36. >Kd3! Qa3+ 37. Ke2! Qa2 38. Ke3! Nf6 39. Nb3+! Kd6 40. Ncd4! Nd5+ 41. Kf3! Qb1 >42. Nb5+! Ke5 43. Qg7+! Nf6 44. N5d4! Qe4+ 45. Kf2! Qh4+ 46. Kf1! Kf4 47. >Ne2+! Ke5 48. Qc7+ Kd5 49. Qb7+! Kd6 50. Nbd4! Qh7 51. Qc8! Qh1+ 52. Kf2! Qh4+ >53. Ke3 Qe4+ 54. Kd2! Nd7 55. Qd8! Qe5 56. Ke1 Qf6 57. Qa8! Qe5 58. Qa6+ Kc7 >59. Ne6+ Kb8 60. Kd1! Qd5+ 61. N2d4! Qh1+ 62. Kd2 Qg2+ 63. Kc3 Qg3+ 64. Kc4! >Ne5+ 65. Kd5! Qg2+ 66. Kd6! Qb7 67. Qe2! Nf7+ 68. Kc5 Qa7+ 69. Kd5 Qd7+ 70. >Ke4 Qb7+ 71. Ke3! Nd6 72. Qh2! Qd5 73. Qh8+! Ka7 74. Qh7+! Qb7 75. Nc6+ Kb6 >76. Qb1+! Nb5 77. Ned4! Kc7 78. Qh7+ Kb6 79. Qg6 Qc7 80. Ne5+! Kb7 81. Qe4+! >Ka6 82. Ndc6! Qb6+ 83. Kf3! Qg1 84. Qb4 Kb6 85. Qd2 Kc5 86. Kf4 Kb6 87. Kf5 >Qc5 88. Kg4! Qg1+ 89. Kh5 Qh1+ 90. Kg5 Qg1+ 91. Kf6 Qf1+ 92. Ke7 Qf5 93. Qe3+ >Kc7 94. Qc1! Qh7+ 95. Nf7! Qe4+ 96. Nce5+! Kb6 97. Qd2! Nc7 98. Qb2+ Nb5 99. >Qb3 Kc5 100. Qe6! Qe3 101. Kf8 Qa3 102. Qg4 Kb6+ 103. Kg7! Qa1 104. Qe6+ Ka5 >105. Ng5! Qd4 106. Nf3! Qc5 107. Qa2+! Na3 108. Kh6 Ka6 109. Qe6+! Kb7 110. >Qd7+ Ka6 111. Qa4+ Qa5 112. Qe4 Qd8 113. Kh5 Qe8+ 114. Kg4 Qe6+ 115. Kh4! Nb5 >116. Ng5! Qe8 117. Qd5 Qe7 118. Qc6+ Ka5 119. Qe4 Ka6 120. Kh5 Qe8+ 121. Ngf7! >Qe6 122. Kg5 Nc3 123. Qd4 Nb5 124. Qc5 Qb6 125. Qc8+ Qb7 126. Qc4 Qg2+ 127. >Kf6 Ka5 128. Qb3 Qf1+ 129. Kg6 Qg2+ 130. Ng5 Ka6 131. Qa4+ Kb6 132. Qc4 Ka6 >133. Nc6 Kb6 134. Ne7 Nc7 135. Nc8+! Kb7 136. Nd6+! Kb6 137. Qb3+ Ka7 138. >Qa4+ Kb6 139. Nc4+ Kc5 140. Ne5! Kb6 141. Nd7+ Kb7 142. Qb4+ Kc8 143. Nb6+! >Kb8 144. Qc5 Qe2 145. Nd7+! Kb7 146. Nf6 Qb2 147. Qc4 Qb5 148. Qf7! Qe2 149. >Nge4 Qg2+ 150. Kh7 Qh1+ 151. Kg8 Qg1+ 152. Kf8 Qd4 153. Qb3+ Ka6 154. Kg8 Qg1+ >155. Kf7 Qd4 156. Qc2 Nb5 157. Qa2+ Kb6 158. Kg6! Qg1+ 159. Kh5 Qd4 160. Qa8 >Nc7 161. Qb8+ Kc6 162. Kg6 Qg1+ 163. Kf7 Qb6 164. Qf8! Nb5 165. Qe8+ Kb7 166. >Qe7+ Qc7 167. Nd7! Qf4+ 168. Ke8 Qc7 169. Qb4 Qc8+ 170. Ke7! Qc6 171. Qa4 Kc8 >172. Nef6 Kb7 173. Qb3 Kc7 174. Qe3 Qd6+ 175. Kf7! Qc6 176. Qf4+ Kb7 177. Ne5 >Qd6 178. Qf3+ Ka7 179. Ned7! Qd4 180. Kg6 Qg1+ 181. Kh7 Qh2+ 182. Kg7 Qg1+ >183. Kf8 Qd4 184. Qh1 Qd6+ 185. Kf7 Nc7 186. Qg1+ Kb7 187. Qb1+! Ka7 188. Qa2+ >Kb7 189. Qb3+ Ka7 190. Qe3+ Kb7 191. Nc5+ Kc6 192. Nce4! Qe6+ 193. Kg7! Qe5 >194. Qc1+ Kb7 195. Qb1+ Kc8 196. Qc2 Kb7 197. Qb3+ Kc6 198. Kg6 Ne6 199. Qa3 >Nc5 200. Ng3 Kb5 201. Nf5! Qh2 202. Qa1 Qg2+ 203. Kf7 Qb7+ 204. Ne7 Qf3 205. >Nd5! Qb3 206. Qe1 Qc4 207. Ke7 Ka6 208. Qe5 Ka5 209. Qa1+ Na4 210. Kf8 Kb5 >211. Qb1+ Ka5 212. Qe1+ Ka6 213. Qe5 Nc5 214. Kg7 Ka5 215. Kh6 Qc1+ 216. Kh5 >Nd3 217. Qg3 Qc4 218. Qe3 Nb4 219. Qd2 Kb5 220. Nc3+ Ka6 221. Nfe4! Qf7+ 222. >Kh4 Qe7+ 223. Kg4 Qg7+ 224. Kh3 Qh8+ 225. Kg2 Qg7+ 226. Kf2 Qf7+ 227. Ke1 Qc4 >228. Qh6+ Ka7 229. Qg7+ Ka6 230. Qf8 Nc6 231. Kf2 Ka7 232. Qe8 Qd4+ 233. Kg2! >Qg7+ 234. Kf1 Kb7 235. Qe6! Qf8+ 236. Ke1 Qe7 237. Qb3+! Kc8 238. Qc4 Kd7 239. >Qb5 Qh4+ 240. Kd2 Qh6+ 241. Kc2 Qh2+ 242. Kc1 Qf4+ 243. Kd1 Qh6 244. Qd3+ Kc8 >245. Qc4 Qh1+ 246. Kc2 Qh2+ 247. Kb3 Qb8+ 248. Ka2 Qh2+ 249. Ka3 Qc7 250. Qg8+ >Nd8 251. Qf8 Qa7+ 252. Kb2 Qb6+ 253. Kc2 Qg6 254. Kd2 Qg2+ 255. Kd3 Qh3+ 256. >Kc2 Qh7 257. Qc5+ Kb8 258. Qd6+ Kc8 259. Qe5 Qc7 260. Qf5+ Kb8 261. Qf8 Kc8 >262. Nc5 Qc6 263. Kb3 Qb6+ 264. Kc4 Qg6 265. Qh8 Qf7+ 266. Kb5 Qf1+ 267. Kb6 >Qg2 268. N3e4 Qg6+ 269. Ka5 Qc6 270. Qf8 Qa8+ 271. Kb5 Qc6+ 272. Kc4 Qc7 273. >Nd6+ Kb8 274. Qf6 Ka8 275. Qa1+ Kb8 276. Qa3 Ne6 277. Qb2+ Ka8 278. Qa1+ Qa7 >279. Qh8+ Qb8 280. Qh1+ Ka7 281. Nb5+ Kb6 282. Nxe6 Qg3 283. Qd5 Qg4+ 284. >Nbd4 Qh4 285. Qc6+ Ka7 286. Nc5 Qe7 287. Nb5+ Kb8 288. Na6# 1-0
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