Get your engine Ready---White to play and Win

[gleperlier]

Rebel 12 don't find it :

00:00:00 1.00 1.11 1.Bb2 Kxc2
00:00:00 1.01 1.18 1.Kb4 Kxa2
00:00:00 1.02 1.25 1.Kb3 Kxa1
00:00:00 2.00 1.25 1.Kb3 Kxa1
00:00:00 3.00 1.54 1.Kb3 Nd2 2.Kb4 Kxa2
00:00:00 4.00 1.48 1.Kb3 Kxa1 2.a4 Kb1
00:00:00 5.00 1.08 1.Kb3 Nd2 2.Kb4 Kxa2 3.c4 Kxa1
00:00:00 5.01 1.35 1.c4 Kxa1 2.Kb4 Kxa2 3.c5
00:00:00 5.02 1.59 1.Bb2 Nd2 2.Kb4 Kxb2
00:00:00 6.00 1.36 1.Bb2 Nd2 2.Kb4 Kxb2 3.a4 Kxc2
00:00:00 7.00 1.36 1.Bb2 Nd2 2.Kb4 Kxb2 3.a4 Kxc2
00:00:00 7.01 1.36 1.c4
00:00:00 7.01 1.63 1.c4 Kxa1 2.Kb3 Nd2 3.Kb4 Kxa2 4.c5
00:00:00 8.00 1.77 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kd4 Na3 5.c5
Nxc2
00:00:00 9.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kd4 Na3 5.c5
Nxc2 6.Kc3 Ne3 7.Kd3
00:00:00 10.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kd4 Na3 5.c5
Nxc2 6.Kc3 Ne3 7.Kd3
00:00:00 11.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:00 12.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:00 13.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:00 14.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:00 15.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:01 16.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:01 17.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:03 18.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:06 19.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:12 20.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Nb1 4.Kb3 Nd2 5.Kc3
Nb1 6.Kb3
00:00:24 21.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Ne4 4.Kb3 Nd2 5.Kc3
Ne4
00:00:41 22.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Ne4 4.Kb3 Nd2 5.Kc3
Ne4
00:01:13 23.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Ne4 4.Kb3 Nd2 5.Kc3
Ne4
00:02:06 24.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Ne4 4.Kb3 Nd2 5.Kc3
Ne4
00:03:58 25.00 1.82 1.c4 Kxa1 2.Kb3 Nd2 3.Kc3 Ne4 4.Kb3 Nd2 5.Kc3
Ne4

[pichy]

Please do not use Tablebase , simply let your Super engine which is better than the best GM in long calculation to solve this one
[d]1N6/1RK5/5n2/8/8/8/5n2/6k1 w - - 0 1


White to Mate in 262
1. Kd6 N6g4 2. Kd5 Ne3+ 3. Kd4 Nc2+ 4. Kc3 Ne3 5. Kd2 Nfg4 6. Kd3 Kg2 7. Ke4 Nc4 8. Kf4 Nge5 9. Ra7 Nd3+ 10. Ke4 Nf2+ 11. Kd4 Nd6 12. Kd5 Nb5 13. Ra5 Nd1 14. Kc5 Nbc3 15. Kd4 Ne2+ 16. Kd3 Ng3 17. Ra1 Nf2+ 18. Ke3 Nf1+ 19. Kd4 Ng3 20. Ra3 Nf5+ 21. Kd5 Nd1 22. Nc6 Nde3+ 23. Ke6 Ng7+ 24. Kf7 Ngf5 25. Kf6 Kf2 26. Ra2+ Kg3 27. Ke5 Kg4 28. Ra4+ Kg5 29. Ke4 Nc4 30. Nd8 Ng3+ 31. Kd4 Nb6 32. Ra7 Nf5+ 33. Ke4 Nc4 34. Ne6+ Kf6 35. Ra6 Ng3+ 36. Kd4 Nd6 37. Kd5 Nde4 38. Ra3 Nf5 39. Nf8 Nf2 40. Rf3 Ng4 41. Ke4 Ngh6 42. Rf2 Ke7 43. Ng6+ Ke6 44. Nf4+ Kf6 45. Nd3 Ke6 46. Nc5+ Kd6 47. Nb7+ Kc7 48. Na5 Nd6+ 49. Kd5 Ng4 50. Rd2 Ne3+ 51. Kd4 Ng4 52. Rg2 Kb6 53. Nb3 Nb5+ 54. Ke4 Nd6+ 55. Kf4 Nh6 56. Rc2 Nb5 57. Rc1 Nf7 58. Nd2 Nc7 59. Nc4+ Kb5 60. Ke4 Ng5+ 61. Kf5 Nge6 62. Nd6+ Kb6 63. Nc8+ Kb5 64. Ke5 Nc5 65. Rg1 Nb3 66. Rg7 Na6 67. Rb7+ Kc4 68. Nd6+ Kc3 69. Rg7 Na5 70. Rg4 Nc6+ 71. Ke4 Na5 72. Ke3 Nb4 73. Nb5+ Kb3 74. Nd4+ Ka4 75. Rh4 Nc4+ 76. Ke4 Nd2+ 77. Kf5 Nc4 78. Ke6 Na3 79. Rh8 Nbc2 80. Nf5 Kb5 81. Kd5 Nb4+ 82. Ke4 Nc4 83. Nd4+ Kb6 84. Rh6+ Kc5 85. Rh5+ Kd6 86. Nf5+ Kd7 87. Rh7+ Kc6 88. Kd4 Kb5 89. Rh5 Na5 90. Nd6+ Kb6 91. Rg5 Kc7 92. Nf5 Kd7 93. Rg2 Ke6 94. Ng7+ Kd7 95. Rh2 Nb7 96. Rd2 Ke7 97. Rb2 Nd8 98. Kc4 Nbc6 99. Kd5 Kd7 100. Rd2 Ke7 101. Nh5 Nb4+ 102. Kc5 Na6+ 103. Kb6 Nb8 104. Nf4 Nf7 105. Kc7 Na6+ 106. Kc6 Nb8+ 107. Kd5 Nd7 108. Re2+ Kf6 109. Rf2 Nb6+ 110. Kc6 Nc4 111. Nd5+ Kg5 112. Ne7 Nce5+ 113. Kd5 Nh6 114. Rf1 Nd7 115. Rg1+ Kf4 116. Ng6+ Kf5 117. Kd6 Nf6 118. Nh4+ Ke4 119. Re1+ Kd3 120. Ke5 Nd7+ 121. Ke6 Nc5+ 122. Kd5 Nd7 123. Rd1+ Ke3 124. Rf1 Nb6+ 125. Ke6 Nc4 126. Ng2+ Ke2 127. Rf4 Nb2 128. Rb4 Nd1 129. Ke5 Nf7+ 130. Kf6 Nd8 131. Nf4+ Kf3 132. Nd5 Nc6 133. Rc4 Na5 134. Ra4 Nc6 135. Ke6 Nb2 136. Rh4 Nd3 137. Kf5 Ke2 138. Rc4 Nde5 139. Rc3 Kd2 140. Rh3 Nc4 141. Rh6 Nd4+ 142. Ke4 Ne2 143. Rh2 Kd1 144. Rf2 Ke1 145. Rg2 Kd1 146. Kd3 Ne5+ 147. Ke3 Nc4+ 148. Kf2 Ne5 149. Rg5 Nc4 150. Rg4 Na3 151. Ke3 Nc2+ 152. Ke4 Kd2 153. Rg2 Ncd4 154. Nf4 Kd1 155. Nh5 Nc2 156. Rf2 Na3 157. Kd3 Nc1+ 158. Ke3 Nc2+ 159. Ke4 Ne2 160. Rf3 Nb4 161. Rh3 Nc1 162. Rh2 Ne2 163. Ng7 Nc3+ 164. Ke5 Nb1 165. Ne6 Nd2 166. Rh3 Nc6+ 167. Kd6 Nb4 168. Kc5 Na2 169. Kd4 Nc1 170. Rh7 Ke2 171. Rh2+ Kf3 172. Rh5 Ke2 173. Re5+ Kd1 174. Rf5 Ne2+ 175. Kd3 Nc1+ 176. Ke3 Nc4+ 177. Kd4 Nb2 178. Rg5 Nbd3 179. Rg7 Ke2 180. Ng5 Ne1 181. Rf7 Kd1 182. Ne4 Ne2+ 183. Kc4 Ng2 184. Rd7+ Ke1 185. Ra7 Kd1 186. Ra1+ Kc2 187. Ra2+ Kd1 188. Rd2+ Ke1 189. Rb2 Kd1 190. Ng5 Ne1 191. Rb1+ Nc1 192. Kc3 Ned3 193. Ne4 Ke2 194. Kd4 Kd1 195. Rb8 Ne1 196. Rd8 Ke2 197. Nc5 Kf3 198. Rf8+ Ke2 199. Rf7 Na2 200. Re7+ Kd1 201. Nb3 Nb4 202. Re4 Ng2 203. Na5 Nc2+ 204. Kd3 Nge3 205. Nb3 Nf1 206. Re8 Ne1+ 207. Kc3 Nf3 208. Nc5 Ng3 209. Kd3 Ne1+ 210. Ke3 Nc2+ 211. Kf2 Nf5 212. Rd8+ Kc1 213. Ke2 Ng3+ 214. Kf3 Nf5 215. Rd7 Nfd4+ 216. Ke4 Kb2 217. Kd3 Nc6 218. Rd6 Ne5+ 219. Ke4 Nc4 220. Rd3 Na5 221. Na4+ Ka2 222. Rg3 Nc4 223. Rh3 Nb2 224. Nc5 Kb1 225. Rh2 Na3 226. Ke3 Nac4+ 227. Kd4 Na3 228. Nb3 Nb5+ 229. Kc5 Na3 230. Kb4 Nc2+ 231. Kc3 Na4+ 232. Kd2 Kb2 233. Na5 Na1 234. Kd3+ Ka3 235. Kc4 Nb6+ 236. Kb5 Nd5 237. Rd2 Nc3+ 238. Kc4 Na4 239. Rd3+ Kb2 240. Kb4 Kc2 241. Ra3 Nb6 242. Rxa1 Kd3 243. Ra3+ Ke4 244. Kc5 Nd7+ 245. Kd6 Nf6 246. Ke6 Nh5 247. Ra4+ Kd3 248. Nc6 Ng7+ 249. Ke5 Ne8 250. Nb4+ Kc4 251. Nd5+ Kb5 252. Ra7 Kc4 253. Re7 Nf6 254. Nxf6 Kd3 255. Nd5 Kc4 256. Rc7+ Kd3 257. Nf4+ Ke3 258. Rc3+ Kd2 259. Kd4 Ke1 260. Ke3 Kd1 261. Nh3 Ke1 262. Rc1#

[Dragulic]

Please do not use Tablebase , simply let your Super engine which is better than the best GM in long calculation to solve this one
...
White to Mate in 262

Point being? That the human will play this "better" as white??

[Terry McCracken]

Please do not use Tablebase , simply let your Super engine which is better than the best GM in long calculation to solve this one
[d]1N6/1RK5/5n2/8/8/8/5n2/6k1 w - - 0 1


White to Mate in 262
1. Kd6 N6g4 2. Kd5 Ne3+ 3. Kd4 Nc2+ 4. Kc3 Ne3 5. Kd2 Nfg4 6. Kd3 Kg2 7. Ke4 Nc4 8. Kf4 Nge5 9. Ra7 Nd3+ 10. Ke4 Nf2+ 11. Kd4 Nd6 12. Kd5 Nb5 13. Ra5 Nd1 14. Kc5 Nbc3 15. Kd4 Ne2+ 16. Kd3 Ng3 17. Ra1 Nf2+ 18. Ke3 Nf1+ 19. Kd4 Ng3 20. Ra3 Nf5+ 21. Kd5 Nd1 22. Nc6 Nde3+ 23. Ke6 Ng7+ 24. Kf7 Ngf5 25. Kf6 Kf2 26. Ra2+ Kg3 27. Ke5 Kg4 28. Ra4+ Kg5 29. Ke4 Nc4 30. Nd8 Ng3+ 31. Kd4 Nb6 32. Ra7 Nf5+ 33. Ke4 Nc4 34. Ne6+ Kf6 35. Ra6 Ng3+ 36. Kd4 Nd6 37. Kd5 Nde4 38. Ra3 Nf5 39. Nf8 Nf2 40. Rf3 Ng4 41. Ke4 Ngh6 42. Rf2 Ke7 43. Ng6+ Ke6 44. Nf4+ Kf6 45. Nd3 Ke6 46. Nc5+ Kd6 47. Nb7+ Kc7 48. Na5 Nd6+ 49. Kd5 Ng4 50. Rd2 Ne3+ 51. Kd4 Ng4 52. Rg2 Kb6 53. Nb3 Nb5+ 54. Ke4 Nd6+ 55. Kf4 Nh6 56. Rc2 Nb5 57. Rc1 Nf7 58. Nd2 Nc7 59. Nc4+ Kb5 60. Ke4 Ng5+ 61. Kf5 Nge6 62. Nd6+ Kb6 63. Nc8+ Kb5 64. Ke5 Nc5 65. Rg1 Nb3 66. Rg7 Na6 67. Rb7+ Kc4 68. Nd6+ Kc3 69. Rg7 Na5 70. Rg4 Nc6+ 71. Ke4 Na5 72. Ke3 Nb4 73. Nb5+ Kb3 74. Nd4+ Ka4 75. Rh4 Nc4+ 76. Ke4 Nd2+ 77. Kf5 Nc4 78. Ke6 Na3 79. Rh8 Nbc2 80. Nf5 Kb5 81. Kd5 Nb4+ 82. Ke4 Nc4 83. Nd4+ Kb6 84. Rh6+ Kc5 85. Rh5+ Kd6 86. Nf5+ Kd7 87. Rh7+ Kc6 88. Kd4 Kb5 89. Rh5 Na5 90. Nd6+ Kb6 91. Rg5 Kc7 92. Nf5 Kd7 93. Rg2 Ke6 94. Ng7+ Kd7 95. Rh2 Nb7 96. Rd2 Ke7 97. Rb2 Nd8 98. Kc4 Nbc6 99. Kd5 Kd7 100. Rd2 Ke7 101. Nh5 Nb4+ 102. Kc5 Na6+ 103. Kb6 Nb8 104. Nf4 Nf7 105. Kc7 Na6+ 106. Kc6 Nb8+ 107. Kd5 Nd7 108. Re2+ Kf6 109. Rf2 Nb6+ 110. Kc6 Nc4 111. Nd5+ Kg5 112. Ne7 Nce5+ 113. Kd5 Nh6 114. Rf1 Nd7 115. Rg1+ Kf4 116. Ng6+ Kf5 117. Kd6 Nf6 118. Nh4+ Ke4 119. Re1+ Kd3 120. Ke5 Nd7+ 121. Ke6 Nc5+ 122. Kd5 Nd7 123. Rd1+ Ke3 124. Rf1 Nb6+ 125. Ke6 Nc4 126. Ng2+ Ke2 127. Rf4 Nb2 128. Rb4 Nd1 129. Ke5 Nf7+ 130. Kf6 Nd8 131. Nf4+ Kf3 132. Nd5 Nc6 133. Rc4 Na5 134. Ra4 Nc6 135. Ke6 Nb2 136. Rh4 Nd3 137. Kf5 Ke2 138. Rc4 Nde5 139. Rc3 Kd2 140. Rh3 Nc4 141. Rh6 Nd4+ 142. Ke4 Ne2 143. Rh2 Kd1 144. Rf2 Ke1 145. Rg2 Kd1 146. Kd3 Ne5+ 147. Ke3 Nc4+ 148. Kf2 Ne5 149. Rg5 Nc4 150. Rg4 Na3 151. Ke3 Nc2+ 152. Ke4 Kd2 153. Rg2 Ncd4 154. Nf4 Kd1 155. Nh5 Nc2 156. Rf2 Na3 157. Kd3 Nc1+ 158. Ke3 Nc2+ 159. Ke4 Ne2 160. Rf3 Nb4 161. Rh3 Nc1 162. Rh2 Ne2 163. Ng7 Nc3+ 164. Ke5 Nb1 165. Ne6 Nd2 166. Rh3 Nc6+ 167. Kd6 Nb4 168. Kc5 Na2 169. Kd4 Nc1 170. Rh7 Ke2 171. Rh2+ Kf3 172. Rh5 Ke2 173. Re5+ Kd1 174. Rf5 Ne2+ 175. Kd3 Nc1+ 176. Ke3 Nc4+ 177. Kd4 Nb2 178. Rg5 Nbd3 179. Rg7 Ke2 180. Ng5 Ne1 181. Rf7 Kd1 182. Ne4 Ne2+ 183. Kc4 Ng2 184. Rd7+ Ke1 185. Ra7 Kd1 186. Ra1+ Kc2 187. Ra2+ Kd1 188. Rd2+ Ke1 189. Rb2 Kd1 190. Ng5 Ne1 191. Rb1+ Nc1 192. Kc3 Ned3 193. Ne4 Ke2 194. Kd4 Kd1 195. Rb8 Ne1 196. Rd8 Ke2 197. Nc5 Kf3 198. Rf8+ Ke2 199. Rf7 Na2 200. Re7+ Kd1 201. Nb3 Nb4 202. Re4 Ng2 203. Na5 Nc2+ 204. Kd3 Nge3 205. Nb3 Nf1 206. Re8 Ne1+ 207. Kc3 Nf3 208. Nc5 Ng3 209. Kd3 Ne1+ 210. Ke3 Nc2+ 211. Kf2 Nf5 212. Rd8+ Kc1 213. Ke2 Ng3+ 214. Kf3 Nf5 215. Rd7 Nfd4+ 216. Ke4 Kb2 217. Kd3 Nc6 218. Rd6 Ne5+ 219. Ke4 Nc4 220. Rd3 Na5 221. Na4+ Ka2 222. Rg3 Nc4 223. Rh3 Nb2 224. Nc5 Kb1 225. Rh2 Na3 226. Ke3 Nac4+ 227. Kd4 Na3 228. Nb3 Nb5+ 229. Kc5 Na3 230. Kb4 Nc2+ 231. Kc3 Na4+ 232. Kd2 Kb2 233. Na5 Na1 234. Kd3+ Ka3 235. Kc4 Nb6+ 236. Kb5 Nd5 237. Rd2 Nc3+ 238. Kc4 Na4 239. Rd3+ Kb2 240. Kb4 Kc2 241. Ra3 Nb6 242. Rxa1 Kd3 243. Ra3+ Ke4 244. Kc5 Nd7+ 245. Kd6 Nf6 246. Ke6 Nh5 247. Ra4+ Kd3 248. Nc6 Ng7+ 249. Ke5 Ne8 250. Nb4+ Kc4 251. Nd5+ Kb5 252. Ra7 Kc4 253. Re7 Nf6 254. Nxf6 Kd3 255. Nd5 Kc4 256. Rc7+ Kd3 257. Nf4+ Ke3 258. Rc3+ Kd2 259. Kd4 Ke1 260. Ke3 Kd1 261. Nh3 Ke1 262. Rc1#

This is a position that no human could solve over the board. It lacks creativity but makes up for it in depth, something only a machine could handle.

[pichy]

Please do not use Tablebase , simply let your Super engine which is better than the best GM in long calculation to solve this one
[d]1N6/1RK5/5n2/8/8/8/5n2/6k1 w - - 0 1


White to Mate in 262
1. Kd6 N6g4 2. Kd5 Ne3+ 3. Kd4 Nc2+ 4. Kc3 Ne3 5. Kd2 Nfg4 6. Kd3 Kg2 7. Ke4 Nc4 8. Kf4 Nge5 9. Ra7 Nd3+ 10. Ke4 Nf2+ 11. Kd4 Nd6 12. Kd5 Nb5 13. Ra5 Nd1 14. Kc5 Nbc3 15. Kd4 Ne2+ 16. Kd3 Ng3 17. Ra1 Nf2+ 18. Ke3 Nf1+ 19. Kd4 Ng3 20. Ra3 Nf5+ 21. Kd5 Nd1 22. Nc6 Nde3+ 23. Ke6 Ng7+ 24. Kf7 Ngf5 25. Kf6 Kf2 26. Ra2+ Kg3 27. Ke5 Kg4 28. Ra4+ Kg5 29. Ke4 Nc4 30. Nd8 Ng3+ 31. Kd4 Nb6 32. Ra7 Nf5+ 33. Ke4 Nc4 34. Ne6+ Kf6 35. Ra6 Ng3+ 36. Kd4 Nd6 37. Kd5 Nde4 38. Ra3 Nf5 39. Nf8 Nf2 40. Rf3 Ng4 41. Ke4 Ngh6 42. Rf2 Ke7 43. Ng6+ Ke6 44. Nf4+ Kf6 45. Nd3 Ke6 46. Nc5+ Kd6 47. Nb7+ Kc7 48. Na5 Nd6+ 49. Kd5 Ng4 50. Rd2 Ne3+ 51. Kd4 Ng4 52. Rg2 Kb6 53. Nb3 Nb5+ 54. Ke4 Nd6+ 55. Kf4 Nh6 56. Rc2 Nb5 57. Rc1 Nf7 58. Nd2 Nc7 59. Nc4+ Kb5 60. Ke4 Ng5+ 61. Kf5 Nge6 62. Nd6+ Kb6 63. Nc8+ Kb5 64. Ke5 Nc5 65. Rg1 Nb3 66. Rg7 Na6 67. Rb7+ Kc4 68. Nd6+ Kc3 69. Rg7 Na5 70. Rg4 Nc6+ 71. Ke4 Na5 72. Ke3 Nb4 73. Nb5+ Kb3 74. Nd4+ Ka4 75. Rh4 Nc4+ 76. Ke4 Nd2+ 77. Kf5 Nc4 78. Ke6 Na3 79. Rh8 Nbc2 80. Nf5 Kb5 81. Kd5 Nb4+ 82. Ke4 Nc4 83. Nd4+ Kb6 84. Rh6+ Kc5 85. Rh5+ Kd6 86. Nf5+ Kd7 87. Rh7+ Kc6 88. Kd4 Kb5 89. Rh5 Na5 90. Nd6+ Kb6 91. Rg5 Kc7 92. Nf5 Kd7 93. Rg2 Ke6 94. Ng7+ Kd7 95. Rh2 Nb7 96. Rd2 Ke7 97. Rb2 Nd8 98. Kc4 Nbc6 99. Kd5 Kd7 100. Rd2 Ke7 101. Nh5 Nb4+ 102. Kc5 Na6+ 103. Kb6 Nb8 104. Nf4 Nf7 105. Kc7 Na6+ 106. Kc6 Nb8+ 107. Kd5 Nd7 108. Re2+ Kf6 109. Rf2 Nb6+ 110. Kc6 Nc4 111. Nd5+ Kg5 112. Ne7 Nce5+ 113. Kd5 Nh6 114. Rf1 Nd7 115. Rg1+ Kf4 116. Ng6+ Kf5 117. Kd6 Nf6 118. Nh4+ Ke4 119. Re1+ Kd3 120. Ke5 Nd7+ 121. Ke6 Nc5+ 122. Kd5 Nd7 123. Rd1+ Ke3 124. Rf1 Nb6+ 125. Ke6 Nc4 126. Ng2+ Ke2 127. Rf4 Nb2 128. Rb4 Nd1 129. Ke5 Nf7+ 130. Kf6 Nd8 131. Nf4+ Kf3 132. Nd5 Nc6 133. Rc4 Na5 134. Ra4 Nc6 135. Ke6 Nb2 136. Rh4 Nd3 137. Kf5 Ke2 138. Rc4 Nde5 139. Rc3 Kd2 140. Rh3 Nc4 141. Rh6 Nd4+ 142. Ke4 Ne2 143. Rh2 Kd1 144. Rf2 Ke1 145. Rg2 Kd1 146. Kd3 Ne5+ 147. Ke3 Nc4+ 148. Kf2 Ne5 149. Rg5 Nc4 150. Rg4 Na3 151. Ke3 Nc2+ 152. Ke4 Kd2 153. Rg2 Ncd4 154. Nf4 Kd1 155. Nh5 Nc2 156. Rf2 Na3 157. Kd3 Nc1+ 158. Ke3 Nc2+ 159. Ke4 Ne2 160. Rf3 Nb4 161. Rh3 Nc1 162. Rh2 Ne2 163. Ng7 Nc3+ 164. Ke5 Nb1 165. Ne6 Nd2 166. Rh3 Nc6+ 167. Kd6 Nb4 168. Kc5 Na2 169. Kd4 Nc1 170. Rh7 Ke2 171. Rh2+ Kf3 172. Rh5 Ke2 173. Re5+ Kd1 174. Rf5 Ne2+ 175. Kd3 Nc1+ 176. Ke3 Nc4+ 177. Kd4 Nb2 178. Rg5 Nbd3 179. Rg7 Ke2 180. Ng5 Ne1 181. Rf7 Kd1 182. Ne4 Ne2+ 183. Kc4 Ng2 184. Rd7+ Ke1 185. Ra7 Kd1 186. Ra1+ Kc2 187. Ra2+ Kd1 188. Rd2+ Ke1 189. Rb2 Kd1 190. Ng5 Ne1 191. Rb1+ Nc1 192. Kc3 Ned3 193. Ne4 Ke2 194. Kd4 Kd1 195. Rb8 Ne1 196. Rd8 Ke2 197. Nc5 Kf3 198. Rf8+ Ke2 199. Rf7 Na2 200. Re7+ Kd1 201. Nb3 Nb4 202. Re4 Ng2 203. Na5 Nc2+ 204. Kd3 Nge3 205. Nb3 Nf1 206. Re8 Ne1+ 207. Kc3 Nf3 208. Nc5 Ng3 209. Kd3 Ne1+ 210. Ke3 Nc2+ 211. Kf2 Nf5 212. Rd8+ Kc1 213. Ke2 Ng3+ 214. Kf3 Nf5 215. Rd7 Nfd4+ 216. Ke4 Kb2 217. Kd3 Nc6 218. Rd6 Ne5+ 219. Ke4 Nc4 220. Rd3 Na5 221. Na4+ Ka2 222. Rg3 Nc4 223. Rh3 Nb2 224. Nc5 Kb1 225. Rh2 Na3 226. Ke3 Nac4+ 227. Kd4 Na3 228. Nb3 Nb5+ 229. Kc5 Na3 230. Kb4 Nc2+ 231. Kc3 Na4+ 232. Kd2 Kb2 233. Na5 Na1 234. Kd3+ Ka3 235. Kc4 Nb6+ 236. Kb5 Nd5 237. Rd2 Nc3+ 238. Kc4 Na4 239. Rd3+ Kb2 240. Kb4 Kc2 241. Ra3 Nb6 242. Rxa1 Kd3 243. Ra3+ Ke4 244. Kc5 Nd7+ 245. Kd6 Nf6 246. Ke6 Nh5 247. Ra4+ Kd3 248. Nc6 Ng7+ 249. Ke5 Ne8 250. Nb4+ Kc4 251. Nd5+ Kb5 252. Ra7 Kc4 253. Re7 Nf6 254. Nxf6 Kd3 255. Nd5 Kc4 256. Rc7+ Kd3 257. Nf4+ Ke3 258. Rc3+ Kd2 259. Kd4 Ke1 260. Ke3 Kd1 261. Nh3 Ke1 262. Rc1#

This is a position that no human could solve over the board. It lacks creativity but makes up for it in depth, something only a machine could handle.

You are correct it was never played by any top human GM, and the reason why I posted not to use tablebase is because the 6 men tablebase will see it immediately. The position is to the right instead of to the left but the result is the same mate in 262. Just one of 17,823,400,766 positions 01.04.2002 – Imagine this: a relatively simple endgame position, six pieces on the board, with a study-like win. The problem is that White must find 262 accurate moves in order to achieve his goal. In most cases the slightest inaccuracy leads to an immediate draw. We refer to the longest known six-piece ending, as calculated by the endgame databases of Ken Thompson and Eugene Nalimov

PS: This is the actual position inverted but the result is the same mate in 262.

[d]6N1/5KR1/2n5/8/8/8/2n5/1k6 w - - 0 1
http://www.chessbase.com/newsdetail.asp?newsid=239

[MikeGL]

Please do not use Tablebase , simply let your Super engine which is better than the best GM in long calculation to solve this one
[d]1N6/1RK5/5n2/8/8/8/5n2/6k1 w - - 0 1


White to Mate in 262
1. Kd6 N6g4 2. Kd5 Ne3+ 3. Kd4 Nc2+ 4. Kc3 Ne3 5. Kd2 Nfg4 6. Kd3 Kg2 7. Ke4 Nc4 8. Kf4 Nge5 9. Ra7 Nd3+ 10. Ke4 Nf2+ 11. Kd4 Nd6 12. Kd5 Nb5 13. Ra5 Nd1 14. Kc5 Nbc3 15. Kd4 Ne2+ 16. Kd3 Ng3 17. Ra1 Nf2+ 18. Ke3 Nf1+ 19. Kd4 Ng3 20. Ra3 Nf5+ 21. Kd5 Nd1 22. Nc6 Nde3+ 23. Ke6 Ng7+ 24. Kf7 Ngf5 25. Kf6 Kf2 26. Ra2+ Kg3 27. Ke5 Kg4 28. Ra4+ Kg5 29. Ke4 Nc4 30. Nd8 Ng3+ 31. Kd4 Nb6 32. Ra7 Nf5+ 33. Ke4 Nc4 34. Ne6+ Kf6 35. Ra6 Ng3+ 36. Kd4 Nd6 37. Kd5 Nde4 38. Ra3 Nf5 39. Nf8 Nf2 40. Rf3 Ng4 41. Ke4 Ngh6 42. Rf2 Ke7 43. Ng6+ Ke6 44. Nf4+ Kf6 45. Nd3 Ke6 46. Nc5+ Kd6 47. Nb7+ Kc7 48. Na5 Nd6+ 49. Kd5 Ng4 50. Rd2 Ne3+ 51. Kd4 Ng4 52. Rg2 Kb6 53. Nb3 Nb5+ 54. Ke4 Nd6+ 55. Kf4 Nh6 56. Rc2 Nb5 57. Rc1 Nf7 58. Nd2 Nc7 59. Nc4+ Kb5 60. Ke4 Ng5+ 61. Kf5 Nge6 62. Nd6+ Kb6 63. Nc8+ Kb5 64. Ke5 Nc5 65. Rg1 Nb3 66. Rg7 Na6 67. Rb7+ Kc4 68. Nd6+ Kc3 69. Rg7 Na5 70. Rg4 Nc6+ 71. Ke4 Na5 72. Ke3 Nb4 73. Nb5+ Kb3 74. Nd4+ Ka4 75. Rh4 Nc4+ 76. Ke4 Nd2+ 77. Kf5 Nc4 78. Ke6 Na3 79. Rh8 Nbc2 80. Nf5 Kb5 81. Kd5 Nb4+ 82. Ke4 Nc4 83. Nd4+ Kb6 84. Rh6+ Kc5 85. Rh5+ Kd6 86. Nf5+ Kd7 87. Rh7+ Kc6 88. Kd4 Kb5 89. Rh5 Na5 90. Nd6+ Kb6 91. Rg5 Kc7 92. Nf5 Kd7 93. Rg2 Ke6 94. Ng7+ Kd7 95. Rh2 Nb7 96. Rd2 Ke7 97. Rb2 Nd8 98. Kc4 Nbc6 99. Kd5 Kd7 100. Rd2 Ke7 101. Nh5 Nb4+ 102. Kc5 Na6+ 103. Kb6 Nb8 104. Nf4 Nf7 105. Kc7 Na6+ 106. Kc6 Nb8+ 107. Kd5 Nd7 108. Re2+ Kf6 109. Rf2 Nb6+ 110. Kc6 Nc4 111. Nd5+ Kg5 112. Ne7 Nce5+ 113. Kd5 Nh6 114. Rf1 Nd7 115. Rg1+ Kf4 116. Ng6+ Kf5 117. Kd6 Nf6 118. Nh4+ Ke4 119. Re1+ Kd3 120. Ke5 Nd7+ 121. Ke6 Nc5+ 122. Kd5 Nd7 123. Rd1+ Ke3 124. Rf1 Nb6+ 125. Ke6 Nc4 126. Ng2+ Ke2 127. Rf4 Nb2 128. Rb4 Nd1 129. Ke5 Nf7+ 130. Kf6 Nd8 131. Nf4+ Kf3 132. Nd5 Nc6 133. Rc4 Na5 134. Ra4 Nc6 135. Ke6 Nb2 136. Rh4 Nd3 137. Kf5 Ke2 138. Rc4 Nde5 139. Rc3 Kd2 140. Rh3 Nc4 141. Rh6 Nd4+ 142. Ke4 Ne2 143. Rh2 Kd1 144. Rf2 Ke1 145. Rg2 Kd1 146. Kd3 Ne5+ 147. Ke3 Nc4+ 148. Kf2 Ne5 149. Rg5 Nc4 150. Rg4 Na3 151. Ke3 Nc2+ 152. Ke4 Kd2 153. Rg2 Ncd4 154. Nf4 Kd1 155. Nh5 Nc2 156. Rf2 Na3 157. Kd3 Nc1+ 158. Ke3 Nc2+ 159. Ke4 Ne2 160. Rf3 Nb4 161. Rh3 Nc1 162. Rh2 Ne2 163. Ng7 Nc3+ 164. Ke5 Nb1 165. Ne6 Nd2 166. Rh3 Nc6+ 167. Kd6 Nb4 168. Kc5 Na2 169. Kd4 Nc1 170. Rh7 Ke2 171. Rh2+ Kf3 172. Rh5 Ke2 173. Re5+ Kd1 174. Rf5 Ne2+ 175. Kd3 Nc1+ 176. Ke3 Nc4+ 177. Kd4 Nb2 178. Rg5 Nbd3 179. Rg7 Ke2 180. Ng5 Ne1 181. Rf7 Kd1 182. Ne4 Ne2+ 183. Kc4 Ng2 184. Rd7+ Ke1 185. Ra7 Kd1 186. Ra1+ Kc2 187. Ra2+ Kd1 188. Rd2+ Ke1 189. Rb2 Kd1 190. Ng5 Ne1 191. Rb1+ Nc1 192. Kc3 Ned3 193. Ne4 Ke2 194. Kd4 Kd1 195. Rb8 Ne1 196. Rd8 Ke2 197. Nc5 Kf3 198. Rf8+ Ke2 199. Rf7 Na2 200. Re7+ Kd1 201. Nb3 Nb4 202. Re4 Ng2 203. Na5 Nc2+ 204. Kd3 Nge3 205. Nb3 Nf1 206. Re8 Ne1+ 207. Kc3 Nf3 208. Nc5 Ng3 209. Kd3 Ne1+ 210. Ke3 Nc2+ 211. Kf2 Nf5 212. Rd8+ Kc1 213. Ke2 Ng3+ 214. Kf3 Nf5 215. Rd7 Nfd4+ 216. Ke4 Kb2 217. Kd3 Nc6 218. Rd6 Ne5+ 219. Ke4 Nc4 220. Rd3 Na5 221. Na4+ Ka2 222. Rg3 Nc4 223. Rh3 Nb2 224. Nc5 Kb1 225. Rh2 Na3 226. Ke3 Nac4+ 227. Kd4 Na3 228. Nb3 Nb5+ 229. Kc5 Na3 230. Kb4 Nc2+ 231. Kc3 Na4+ 232. Kd2 Kb2 233. Na5 Na1 234. Kd3+ Ka3 235. Kc4 Nb6+ 236. Kb5 Nd5 237. Rd2 Nc3+ 238. Kc4 Na4 239. Rd3+ Kb2 240. Kb4 Kc2 241. Ra3 Nb6 242. Rxa1 Kd3 243. Ra3+ Ke4 244. Kc5 Nd7+ 245. Kd6 Nf6 246. Ke6 Nh5 247. Ra4+ Kd3 248. Nc6 Ng7+ 249. Ke5 Ne8 250. Nb4+ Kc4 251. Nd5+ Kb5 252. Ra7 Kc4 253. Re7 Nf6 254. Nxf6 Kd3 255. Nd5 Kc4 256. Rc7+ Kd3 257. Nf4+ Ke3 258. Rc3+ Kd2 259. Kd4 Ke1 260. Ke3 Kd1 261. Nh3 Ke1 262. Rc1#

Amazing EGTB's. Too bad according to rules of humans, FIDE rules to be exact,
it's already a draw if there's no pawn pushes or any captures for
more than 50 moves. I'm honestly curious if there are similar rules for
engine matches or human vs engine tourns. Else, FIDE laws should be
modified for the change of times.