Author: Rob Basham
Date: 08:57:28 02/12/06
Go up one level in this thread
On February 12, 2006 at 11:34:56, Tord Romstad wrote: >On February 12, 2006 at 11:07:55, Andre Reffhaug wrote: > >>After 5 minutes Glaurung 1.0.2 announces a mate in 10 - but this is perhaps due >>to some of the problems discussed earlier on this very forum? >> >>Tord, any opinions here? > >Yes, this is probably caused by not adjusting mate scores when storing to the >hash table, as discussed yesterday. On my machine, Glaurung announces >mate in 10 after 1:51 at iteration 18, and corrects this to mate in 11 two >iterations later: > >2 +96 25 239 Kg1 Qb1+ Kh2 >2 +251 25 467 Ng5 e4 Qh7+ Qxh7+ Rxh7+ Kg8 >2 +489 25 839 Bg5 Be7 Qxe7 Bxh3 gxh3 Qxf2+ Kh1 >3 +489 25 1045 Bg5 Be7 Qxe7 Bxh3 gxh3 Qxf2+ Kh1 >4 +743 26 1794 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 >5 +743 26 3068 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 >6 +742 26 5257 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Qf6 Qxf6 Bxf6 >7 +950 27 10887 Bg5 Be7 Qxe7 Qg6 Bf6+ Kg8 Qg7+ Qxg7 Rxg7+ Kf8 Rxg4 >8 +1193 29 20866 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Qf7 Rxf7 Kxf7 >9 +1193 32 43658 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Qf7 Rxf7 Kxf7 >10 +1232 37 95102 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Qf7 Rxf7 Kxf7 b6 >11 +1245 52 223729 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Qf7 Rxf7 Kxf7 Qe7+ Kg8 b6 Rc2 >12 +1395 81 497699 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Nxg6 Rxe5 Nxe5 Bc8 Rc7 >13 +1396 162 1222898 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Nxg6 Rxe5 Rb8+ Re8 Rxe8+ >Kg7 Kg3 Bf5 >14 +3164 381 3081028 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Rc5 Rb8+ Bc8 Nxg6 Rxe5 Rxc8+ >Re8 Rxe8+ Kf7 Rh8 Kxg6 >15 +3485 876 7041329 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Qh8+ Kxh8 Nxg6+ Kg8 Bh6 >Bd7 Rxd7 Re7 Nxe7+ Kf7 Kg3 Ke6 Rc7 >16 +3485 1674 13566779 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Qh8+ Kxh8 Nxg6+ Kg8 >Bh6 Bd7 Rxd7 Re7 Nxe7+ Kf7 Kg3 Ke6 Rc7 Kd6 >17 +3489 4223 35004936 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Qh8+ Kxh8 Nxg6+ Kg8 >Bh6 Bd7 Rxd7 Re7 Nxe7+ Kf7 Nc8+ Ke6 Rd6+ Kf5 Kg3 Ke4 b6 >18 +9981 11170 92490163 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Nxg6 Rxe5 Nxe5 Bf5 >Bf6 Bc8 Rb8 Kh7 Rxc8 Kh6 Rh8# >19 +9981 12752 107096848 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Nxg6 Rxe5 Nxe5 Bf5 >Bf6 Bc8 Rb8 Kh7 Rxc8 Kh6 Rh8# >20 +9979 16010 136978923 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Nxg6 Rxe5 Nxe5 Bh5 >Bf6 Kf8 Rb8+ Be8 Rd8 Kg8 Rxe8+ Kh7 Rh8# >21 +9979 32714 288647598 Bg5 Be7 Qxe7 Qg6 Qxe5+ Kg8 Nf4 Re8 Nxg6 Rxe5 Nxe5 Bh5 >Bf6 Kf8 Rb8+ Be8 Rd8 Kg8 Rxe8+ Kh7 Rh8# > >Actually, I don't care much if my program occasionally announces mate >in a wrong number of moves. As long as it doesn't announce mate >when there is no mate, I'm happy. > >Tord Yes, I agree! It does not have to be the correct number of moves..etc. Thanks to all the good replies! Very interesting! Keep up the good work! Rob
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