Author: Daniel Clausen
Date: 13:05:54 12/09/99
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Hi On December 08, 1999 at 17:22:13, William Bryant wrote: > >>Correct. Here is the mother of all positions to test hashing on, from >>Fine's "Basic Chess Endings" position number 70: >> >> >>/k/3p/p2P1p/P2P1P///K/ w >> >>if hashing works, you will get to 30 plies instantly. If it doesn't, you >>won't get to 15. >> >> >>> > >_instantly_? > >As I have "improved" my move ordering my responst to this test hash slowed >somewhat. I get to 18 plies "instantly" (less than 1 second"), >23 plies by 33 seconds, 24 plies by 55 seconds, and find the answer at a depth >of 24 plies in 125 seconds. It takes me nine minutes to actually get to 30 >plies. Then you should be happy since compared with my engine yours is blindingly fast. ;) 22 ( 1/ 3) 49.32 +1.24 KA1-B2 KA7-A8 KB2-A1 KA8-A7 <HT> 22 ( 3/ 3) 76.18 +1.24 KA1-B2 KA7-A8 KB2-A1 KA8-A7 <HT> 23 ( 1/ 3) 131.53 +1.24 KA1-B2 KA7-A8 KB2-A1 KA8-A7 <HT> 23 ( 2/ 3) 472.77 +2.16 KA1-B1 KA7-A6 KB1-C2 KA6-B6 KC2-D2 <skipped> 23 ( 3/ 3) 472.80 +2.16 KA1-B1 KA7-A6 KB1-C2 KA6-B6 KC2-D2 <skipped> I think the reason it takes ages compared to Crafty is more dependent on the replace strategy in the HT than move ordering. But in my case a bug is even much more likely. :) Kind regards, -sargon
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