Author: Robert Hyatt
Date: 10:09:06 05/13/04
Go up one level in this thread
On May 13, 2004 at 03:44:58, Jeff GAZET wrote: >>>Good morning, >>> >>>i have a good 64bit hash value for each position, xored with side, ep, piece and >>>castling rights. I can say this is good because it's ok for detecting >>>repetitions. >>> >>>I suppose the code to insert informations into the hashtable and to retreive >>>them is ok (thanks to users of this forum). This works fine for a given position >>>: the search goes deep in depth and with a correct PV. Then, if i undo the move >>>and search again, another move is given in PV. I undo the move and seach again >>>and result is different... >>> >>>But if i clear the hash table before each search. It's all right. PV is always >>>the same for a given position. And a good PV. >>> >>>I printed hash values to a file, and depth, eval, hash flags. I can't see >>>anything bad. >>> >>>Have you got any idea where the bug could be ? >>> >>>Regards. > >>in your head. :) >>this sounds normal... > >I'd like this sounds normal. Maybe i didn't explain vey well. >But this doesn't sound normal for me : That definitely is not normal. However, backing up and re-searching will often produce a different PV or score. But it should not produce a _wrong_ PV or score as you are showing below... > >[D] 8/k7/3p4/p2P1p2/P2P1P2/8/8/K7 w - - > >The correct move is a1b1 > >depth time eval pv > 1 00:00 1,35 a1b2 > 2 00:00 1,15 a1b2 a7b6 > 3 00:00 1,35 a1b2 a7b6 b2c3 > 4 00:00 1,35 a1b2 a7b6 b2c3 b6c7 > 5 00:00 1,45 a1b2 a7b6 b2c3 b6c7 c3d3 > 6 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3d3 c7d7 > 7 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3d3 c7d7 d3e3 > 8 00:00 1,45 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 > 9 00:00 1,45 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3e3 >10 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3e3 >11 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3e3 c7d7 e3d3 >12 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3c3 c7d7 c3c4 d7e7 >13 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3c3 c7d7 c3c4 d7e7 >c4d3 >14 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3c3 c7b7 c3c2 b7c7 >c2d3 c7d7 >15 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3c3 c7b7 c3c2 b7c7 >c2d3 c7d7 d3e3 >16 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3c3 c7b7 c3c2 b7c7 >c2d3 c7d7 d3e3 d7e7 >17 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3c3 c7b7 c3c2 b7c7 >c2d3 c7d7 d3e3 d7e7 e3d3 >18 00:00 1,35 a1b2 a7a8 b2a2 a8b7 a2b3 b7c7 b3c4 >19 00:00 1,35 a1b2 a7a8 b2a2 a8b7 a2b3 b7c7 b3c4 >20 00:00 1,83 a1b1 a7b7 b1c1 b7c7 c1d1 c7d7 d1c2 d7e7 c2c3 >21 00:00 2,03 a1b1 a7b7 b1c1 b7c7 c1d1 c7d7 d1c2 d7e7 c2c3 e7f6 c3c4 f6g6 >c4b5 g6h5 b5c6 h5g4 c6d6 g4f4 d6e6 f4e4 d5d6 >22 00:00 1,83 a1b1 a7b7 b1c1 b7c7 c1d1 c7d7 d1c2 d7e7 c2c3 e7f6 c3c4 f6g6 >c4b5 g6h5 b5a5 h5g4 a5b5 g4f4 b5c6 f4e4 c6d6 e4d4 >23 00:00 2,04 a1b1 a7b7 b1c1 b7c7 c1d1 c7d7 d1c2 d7e7 c2c3 e7f6 c3c4 f6g6 >c4b5 g6h5 b5a5 h5g4 a5b5 g4f4 b5c6 f4e4 c6d6 e4d4 a4a5 >24 00:01 2,89 a1b1 a7b7 b1c1 b7c7 c1d1 c7d7 d1c2 d7c8 c2d2 c8b8 d2e3 b8c8 >25 00:02 3,06 a1b1 a7b7 b1c1 b7c7 c1d1 c7d7 d1c2 d7c8 c2d2 c8d7 d2c3 > >undo >go > > 1 00:00 1,35 a1b2 > 2 00:00 1,15 a1b2 a7b6 > 3 00:00 1,35 a1b2 a7b6 b2c3 > 4 00:00 1,35 a1b2 a7b6 b2c3 b6c7 > 5 00:00 1,45 a1b2 a7b6 b2c3 b6c7 c3d3 > 6 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3d3 c7d7 > 7 00:00 1,35 a1b2 a7b6 b2c3 b6c7 c3d3 c7d7 d3e3 > 8 00:00 1,45 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 > 9 00:00 1,45 a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4d3 b6c7 d3e3 >10 00:00 1,55 a1b2 a7b6 b2c3 b6c7 c3d3 c7b7 d3d2 >11 00:00 1,55 a1b2 a7b6 b2c3 b6c7 c3d3 c7b7 d3d2 >12 00:00 1,55 a1b2 a7b6 b2c3 b6c7 c3d3 c7b7 d3d2 >13 00:00 1,55 a1b2 a7b6 b2c3 b6c7 c3d3 c7b7 d3d2 >14 00:00 1,55 a1b2 a7b6 b2c3 b6c7 c3d3 c7b7 d3d2 >15 00:00 1,55 a1b2 a7b6 b2c3 b6c7 c3d3 c7b7 d3d2 >16 00:00 1,55 a1b2 a7b6 b2c3 b6c7 c3d3 c7b7 d3d2 >17 00:00 1,55 a1b2 a7b6 b2c3 b6c7 c3d3 c7b7 d3d2 >18 00:00 1,55 a1b2 a7a8 b2c3 a8b7 >19 00:00 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7d8 d2c2 d8d7 >c2b3 d7c7 b3c4 c7b6 c4d3 >20 00:00 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7c8 d2c2 c8d8 >c2c1 d8c7 c1d1 c7c8 d1e1 >21 00:00 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7c8 d2e1 >22 00:00 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7c8 d2e1 >23 00:00 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7c8 d2e1 >24 00:00 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7c8 d2e1 >25 00:00 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7c8 d2e1 >26 00:01 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7c8 d2e1 >27 00:01 1,55 a1b2 a7a8 b2c3 a8b7 c3d3 b7c7 d3e3 c7d7 e3d2 d7c8 d2e1 > >undo >go > > 1 00:00 1,35 a1b2 > 2 00:00 1,05 a1b1 a7b6 > 3 00:00 1,25 a1b1 a7b6 b1c2 > 4 00:00 1,25 a1b1 a7b6 b1c2 b6c7 > 5 00:00 1,45 a1b1 a7b6 b1c2 b6c7 c2d3 > 6 00:00 1,35 a1b1 a7b6 b1c2 b6c7 c2d3 c7d7 > 7 00:00 1,35 a1b1 a7b7 b1c2 b7c7 > 8 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4d3 b6c7 > 9 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4d3 b6c7 d3e3 >10 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6a6 c3d3 a6b6 >11 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6a6 c3d3 a6b6 d3e3 >12 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6a6 c3d3 a6b6 d3e3 b6c7 >13 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6a6 c3d3 a6b6 d3e3 b6c7 >e3d3 >14 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6a6 c3b3 a6b6 b3c4 b6a6 >c4d3 a6b6 >15 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6a6 c3b3 a6b6 b3c4 b6a6 >c4c3 a6b6 c3d3 >16 00:00 1,45 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6a6 c3b3 a6b6 b3c4 b6a6 >c4c3 a6b6 c3d3 b6c7 >17 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >18 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >19 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >20 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >21 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >22 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >23 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >24 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >25 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >26 00:00 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7 >27 00:01 1,55 a1a2 a7b6 a2b3 b6a6 b3c4 a6b6 c4c3 b6b7
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