Author: Stan Arts
Date: 03:28:48 08/22/04
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Hi Neurosis1.8 has a bit of noise at first, but then he gets it. (20 seconds, on my slow computer) It usually takes neurosis a bit long to find more complicated forced draws by repetition, because I give drawscores in the searchtree after 3 repetitions. (not 2, that seems to be common) >I am wondering, specifically, what tricks there are to get it >solved faster than this on non-parallel. A forced draw like this by checkextentions. P3-550 , 48MB hash Legal moves: 31 Static score: 67 Ply Score Time Nodes Best move and expected line ------------------------------------------------------------ 2 365 6 996 Qxb6 e4 3 374 6 1806 Qxb6 Rc8 Qe3 4 371 11 6024 Qxb6 e4 b4 Rf2 5 377 33 23050 Qxb6 e4 b4 Qc3 Rb1 6 366 110 89288 Qxb6 Rf1 Qd8+ Kh7 Qd3+ e4 Qc2 a4 7 326 171 141923 Qxb6 < - > Rf1 Bxh6 Qxa1 b3 gxh6 7 246 193 161647 Qxb6 < - > Rf1 Bxh6 Qxa1 b3 gxh6 7 6 215 186108 Qxb6 < - > Rf1 Bxh6 Qxa1 b3 gxh6 7 -94 275 242780 Qxb6 Rf1 Qd8+ Kh7 Qd3+ e4 Qxf1 Qxf1 7 -93 374 332003 Bf4 < + > Qxa1 Bxe5 Rf2 b3 Qb1 Qxb6 7 -77 401 350289 Bf4 Qxa1 Bxe5 Kh7 Qxb6 Qxa2 b4 7 -76 627 561734 h4 < + > Qf2 b3 Qxh4+ Qh3 e4 7 -66 676 598991 h4 Rf1 Qe8+ Kh7 Kh3 Rh1+ Kg4 Rxh4+ Kf5 e4 8 -106 692 619508 h4 < - > Rf1 Qxh6+ gxh6 b3 8 -186 703 629223 h4 < - > Rf1 Qxh6+ gxh6 b3 8 -426 753 680001 h4 < - > Rf1 Qxh6+ gxh6 b3 8 -934 1110 983162 h4 Rf1 Kh3 Rh1+ Kg4 Rxh4+ Kf3 e4+ Qxe4 Qxe4+ Kf2 Rh2 8 -933 1137 1005261 Qxb6 < + > Rf1 Qd8+ Kh7 Qd3+ Rf5 b3 Qxc1 8 -853 1143 1006669 Qxb6 < + > Rf1 Qd8+ Kh7 Qd3+ Rf5 b3 Qxc1 8 -613 1143 1009255 Qxb6 < + > Rf1 Qd8+ Kh7 Qd3+ Rf5 b3 Qxc1 8 -83 1264 1120290 Qxb6 Rf1 Qd8+ Kh7 Qd3+ e4 Qxf1 Qxf1 b4 8 -82 1379 1222336 Bf4 < + > Qxa1 Bxe5 Kh7 Qxb6 Rf4 Bxf4 8 -82 1401 1238249 Bf4 Qxa1 Bxe5 Kh7 Qxb6 Qxa2 b4 Rf2 9 -79 1659 1473132 Bf4 Qxa1 Bxe5 Kh7 Qxb6 Qxa2 Bd6 Qe6 b4 9 -78 2027 1851024 Bxh6 < + > Qxa1 Qg6 Rf4 Bxf4 Qxa2 9 0 2263 2086133 Bxh6 Qxa1 Qg6 gxh6 Qxh6+ Kg8 Qg6+ Kh8 Qh6+ Kg8 Qg6+ Kh8 Qh6+ 10 0 3356 2973850 Bxh6 Qxa1 Qg6 gxh6 Qxh6+ Kg8 Qg6+ Kh8 Qh6+ Kg8 Qg6+ Kh8 Qh6+ 11 0 6679 5764820 Bxh6 Qxa1 Qg6 gxh6 Qxh6+ Kg8 Qg6+ Kh8 Qh6+ Kg8 Qg6+ Kh8 Qh6+ 12 0 17401 14159929 Bxh6 Qxa1 Qg6 gxh6 Qxh6+ Kg8 Qg6+ Kh8 Qh6+ Kg8 Qg6+ Kh8 Qh6+ Total nodes:20176698 n/sec:85800 (Q-nodes:14% max depth:31) Stan On August 21, 2004 at 23:56:48, Stuart Cracraft wrote: >On August 21, 2004 at 23:39:17, Stuart Cracraft wrote: > >>There was an error. The right position is: >> >>[D]5r1k/6p1/1n2Q2p/4p3/8/7P/PP4PK/R1B1q3 w >> > >It takes my program 142M nodes to get the right move for the >right reason in 10 minutes. This would be about 1.5 minutes >on a more modern PC. > >I am wondering, specifically, what tricks there are to get it >solved faster than this on non-parallel. > >Stuart
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