Author: Uri Blass
Date: 01:54:49 08/24/05
Go up one level in this thread
On August 23, 2005 at 10:54:34, Tony Hedlund wrote: >On August 23, 2005 at 07:06:02, Rick Hagen wrote: > >>On August 23, 2005 at 05:43:48, Tony Hedlund wrote: >> >>>Here are five positions that give you an indication of how strong your engines >>>are in endgames. >>> >>>White to move, and it's a draw. >>> >>>[D] 6R1/P2k4/r7/5N1P/r7/p7/7K/8 w - - 0 1 >> >>1.Nh6 followed by perpetual check with the rook. >>Must find an engine that sees the draw yet though... >> > >Yes, that's right! But can an engine find it? GM Morozevitj couldn't. > >Tony certainly engines can find it. download movei and see that it find the right move in less than a minute on fast hardware. No draw score but score that is less than one pawn advantage for black and later less than half pawn for black. some analysis of the public version setboard 6R1/P2k4/r7/5N1P/r7/p7/7K/8 w - - 0 1 analyze 1 -18 0 187 g8g7 d7e6 2 0 0 531 g8g7 d7d8 g7g8 d8d7 2 0 0 720 g8g7 d7d8 g7g8 d8d7 3 -30 0 1017 g8g7 3 -100 0 1492 g8g7 3 -111 0 2114 g8g7 d7d8 g7g8 d8c7 f5d4 3 -110 0 2302 h5h6 3 -110 0 2576 h5h6 a6a7 h6h7 a3a2 h7h8q a2a1q g8d8 d7c7 3 -110 0 3421 h5h6 a6a7 h6h7 a3a2 h7h8q a2a1q g8d8 d7c7 4 -109 0 4276 h5h6 a6a7 h6h7 a3a2 h7h8q a2a1q g8d8 d7c6 4 -109 1 8064 h5h6 a6a7 h6h7 a3a2 h7h8q a2a1q g8d8 d7c6 5 -139 1 11729 h5h6 5 -189 3 14617 h5h6 a3a2 h6h7 a2a1q h7h8q a4a2 h2g3 a1h8 g8h8 a6a7 5 -188 3 18800 g8g7 5 -159 4 27375 g8g7 5 -116 7 43439 g8g7 d7e6 f5d4 e6f6 g7g6 f6f7 g6a6 a4a6 d4c6 5 -116 9 50189 g8g7 d7e6 f5d4 e6f6 g7g6 f6f7 g6a6 a4a6 d4c6 6 -146 10 59601 g8g7 6 -200 21 116476 g8g7 d7c6 g7g6 c6b7 a7a8r a6a8 h5h6 6 -199 21 121155 h5h6 6 -189 23 125257 h5h6 a3a2 h6h7 a2a1q h7h8q a4a2 h2g3 a1h8 g8h8 a6a7 6 -189 28 152299 h5h6 a3a2 h6h7 a2a1q h7h8q a4a2 h2g3 a1h8 g8h8 a6a7 7 -219 29 161433 h5h6 7 -238 31 173257 h5h6 a3a2 h6h7 a2a1q h7h8q a4a2 h2g3 a1e1 g3f4 a6a7 7 -237 37 204726 g8g7 7 -220 73 392855 g8g7 d7e6 f5d4 e6e5 d4f3 e5d5 g7g5 d5e4 h2g3 a6a7 g5e5 e4d3 h5 h6 7 -220 93 510165 g8g7 d7e6 f5d4 e6e5 d4f3 e5d5 g7g5 d5e4 h2g3 a6a7 g5e5 e4d3 h5 h6 8 -243 146 789751 g8g7 d7e6 f5d4 e6e5 d4f3 e5e4 h2g2 a6a7 g7a7 a4a7 h5h6 8 -243 215 1201112 g8g7 d7e6 f5d4 e6e5 d4f3 e5e4 h2g2 a6a7 g7a7 a4a7 h5h6 9 -273 420 2312501 g8g7 9 -329 579 3187361 g8g7 d7e6 f5d4 e6f6 g7g6 f6f7 g6a6 a4a6 d4f3 a6a7 f3g5 f7g7 g5e6 g7f6 e6d4 9 -328 584 3218403 a7a8q 9 -314 590 3255996 a7a8q a6a8 g8g1 a4f4 g1d1 d7e6 f5g7 e6f6 h2g3 a8a4 9 -313 750 4204341 f5h6 9 -314 892 4993010 a7a8q a6a8 g8g1 a4f4 g1d1 d7e6 f5g7 e6f6 h2g3 a8a4 9 -313 1095 6227432 g8g1 9 -284 1143 6488632 g8g1 9 -274 1198 6798805 g8g1 a6a7 g1a1 d7e6 f5g3 a4b4 a1e1 e6d5 e1d1 b4d4 d1a1 d4d2 h2h3 9 -274 1253 7129097 g8g1 a6a7 g1a1 d7e6 f5g3 a4b4 a1e1 e6d5 e1d1 b4d4 d1a1 d4d2 h2h3 10 -284 1415 8045587 g8g1 a6a7 g1a1 a7b7 h2g2 b7b2 g2f3 b2b3 f3e2 a4e4 e2d2 b3f 3 f5g7 d7d6 10 -284 2398 13861041 g8g1 a6a7 g1a1 a7b7 h2g2 b7b2 g2f3 b2b3 f3e2 a4e4 e2d2 b3 f3 f5g7 d7d6 11 -314 2575 14922482 g8g1 11 -322 2746 15977840 g8g1 a6a7 g1a1 a3a2 h5h6 d7e6 f5g7 e6f7 h2g3 f7g6 g3f2 a7 f7 f2e2 g6h6 11 -321 2839 16540205 a7a8q 11 -307 2910 16949597 a7a8q a6a8 g8g1 a3a2 g1a1 a4f4 f5g3 f4f2 h2h3 a8h8 h3g4 h 8g8 g4h3 11 -306 4529 26697245 f5h6 11 -277 4665 27549102 f5h6 11 -73 5492 32527924 f5h6 d7c7 a7a8q a6a8 g8g7 c7b6 g7g6 b6b7 g6g7 b7c6 g7g6 c6 d7 g6g7 d7d6 g7g6 d6d5 g6g5 d5e6 g5g6 e6e5 11 -73 5776 34162617 f5h6 d7c7 a7a8q a6a8 g8g7 c7b6 g7g6 b6b7 g6g7 b7c6 g7g6 c6 d7 g6g7 d7d6 g7g6 d6d5 g6g5 d5e6 g5g6 e6e5 12 -92 6498 38488953 f5h6 a3a2 a7a8q a6a8 g8g7 d7d8 g7g8 d8c7 g8g7 c7c8 g7g8 c8 b7 g8g7 b7c6 g7g6 c6d5 g6g5 d5e6 g5g6 e6e5 12 -92 8898 51958952 f5h6 a3a2 a7a8q a6a8 g8g7 d7d8 g7g8 d8c7 g8g7 c7c8 g7g8 c8 b7 g8g7 b7c6 g7g6 c6d5 g6g5 d5e6 g5g6 e6e5 13 -62 15379 89836530 f5h6 13 -40 23562 139103930 f5h6 a6a7 g8g7 d7d8 g7g8 d8c7 g8g7 c7c8 g7g8 c8b7 g8g7 b 7c6 g7g6 c6d5 g6g5 d5c4 g5g4 c4c5 g4g5 c5b4 g5g4 b4b5 g4g5 b5a6 g5g6 a6a5 g6g5 a 5b6 Uri
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