Author: Stuart Cracraft
Date: 18:59:29 08/22/04
Go up one level in this thread
[D]r3kb1r/1pp3p1/p3bp1p/5q2/3QN3/1P6/PBP3P1/3RR1K1 w kq - 0 1 Debug it incrementally to solve this. First, disable all your non-core stuff. Disable hashing, nullmove, extensions, reductions, etc. Try it with core-only. Fails? Debug that. Otherwise layer until you find what introduces the deviation from the solution. To prove that there is promise, even with this lowly programmer typing to you, here's WAC 217 (your position) solved. Note, my branching factor calculation is currently not available. Sorry. Testsuite: Tests/wac.epd 1 positions Alpha=-2256 Beta=-1756 Maxdepth=9999999 MaxTime=1 1/21 c2c3 0.01 -2006 354 c2c3 2/21> d4e3 0.04 -1756 5502 d4e3 e8e7 2/32 e4g3 0.05 71 7140 e4g3 f5c2 3/32> e4g3 0.06 321 7504 e4g3 f8e7 g3f5 3/32 c7d6 0.10 1073 13785 e4g3 f5b5 e1e6 f8e7 4/32 b7b5 0.19 1088 33765 e4g3 f5c5 e1e6 e8f7 d1e1 5/33 e4g3 0.51 1088 93563 e4g3 f5c5 e1e6 e8f7 d1e1 c5d4 b2d4 6/33>Md4d7 0.89 9999988 166584 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 nps=187806 ha=24.00% q=57.0% bc=86% br=NaN% mp=142<>116 pawnx=0 recapx=0 qcheckx=15740 checkx=3372 futilx=0 qfutilx=0 **** 6.00/33.00 100% 1/1 0.89 166584 166584/1/187806 0/0/15740/3372/0/0 % totcor/totpos time nodes nodes/pos time/pos nodes/sec pawnx/recapx/qcheckx/che ckx/futilx/qfutilx -------------------------------- On August 22, 2004 at 14:26:17, Jan K. wrote: >hi....i need some help....my engine seems to have a problem in positions like >this one from WAC >[D]r3kb1r/1pp3p1/p3bp1p/5q2/3QN3/1P6/PBP3P1/3RR1K1 w kq - 0 1 > >with extensions: >depth|score(mate is 90)|time|nodes >4 89.91 0.077 30855 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >4 -> 89.91 0.087 38970 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >5 89.91 0.173 65972 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >5 -> 89.91 0.429 191252 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >6 89.91 0.688 319235 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >6 -> 89.91 1.709 1037226 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >7 89.91 2.379 1664198 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >7 -> 89.91 7.369 5421612 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >8 89.91 10.524 7943967 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >8 -> 89.91 37.778 30229615 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >9 89.91 50.168 41272010 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >9 -> 89.91 197.056 164908328 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 > >without extensions: >4 -0.23 0.005 1822 e4f6 e8f7 f6d7 f5g6 >4 -0.04 0.023 11768 e4g5 f8c5 e1e6 f5e6 g5e6 c5d4 b2d4 f7g6 d7c7 >4 1.66 0.031 16900 e4g3 f8c5 g3f5 c5d4 b2d4 c5d4 b2d4 f7g6 d7c7 >4 -> 1.66 0.046 24667 e4g3 f8c5 g3f5 c5d4 b2d4 c5d4 b2d4 f7g6 d7c7 >5 1.65 0.057 29693 e4g3 f5c5 e1e6 e8f7 d1e1 c5d4 b2d4 c5d4 g1f1 f7e6 d1d4 >5 -> 1.65 0.088 55230 e4g3 f5c5 e1e6 e8f7 d1e1 c5d4 b2d4 c5d4 g1f1 f7e6 d1d4 >6 1.65 0.101 62020 e4g3 f5c5 e1e6 e8f7 d1e1 c5d4 b2d4 c5d4 g1f1 f7e6 d1d4 >6 -> 1.65 0.390 155803 e4g3 f5c5 e1e6 e8f7 d1e1 c5d4 b2d4 c5d4 g1f1 f7e6 d1d4 >7 1.20 0.417 173599 e4g3 f5c5 e1e6 e8f7 e6e1 f8d6 g3e4 c5d4 b2d4 c7d6 g1f1 >7 -> 1.20 0.892 417173 e4g3 f5c5 e1e6 e8f7 e6e1 f8d6 g3e4 c5d4 b2d4 c7d6 g1f1 >8 1.15 0.988 467803 e4g3 f5c5 e1e6 e8f7 d1e1 c5d4 b2d4 f8d6 >8 -> 1.15 2.100 1162258 e4g3 f5c5 e1e6 e8f7 d1e1 c5d4 b2d4 f8d6 >9 1.17 2.230 1265171 e4g3 f5c5 e1e6 e8f7 d1e1 c5d4 b2d4 f8b4 e1e2 >9 89.91 4.461 3217154 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >9 -> 89.91 12.078 13306454 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >10 89.91 14.649 14632878 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 >10 -> 89.91 120.830 132491936 d4d7 e6d7 e4d6 e8d8 d6f7 d8c8 e1e8 d7e8 d1d8 > >If I don't stop search after I found a mate and want to continue, is it normal >to get such a high branching factor? Note that 80% of time needed to complete an >iteration is consumed by searching remaining moves, although alfa at root is >near to beta thanks to the mate score(and I use pvs)...that doesn't look right >to me...and engines like Gothmog,Fruit,Aristarch seem to continue searching very >quickly. Where could be the problem? Are they using some kind of mate pruning? >:) Thanks.
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