Author: Uri Blass
Date: 01:37:58 04/22/01
These results is from the nunn match(both programs used 64 mbytes hash and most of the tablebases) Tiger14(depth 3)-Deep Fritz(depth 3) 16.5-3.5 Tiger14(depth 4)-Deep Fritz(depth 4) 7.5-12.5 Tiger14(depth 5)-Deep Fritz(depth 5) 13-7 Tiger14(depth 6)-Deep Fritz(depth 6) 14-6 Tiger14(depth 7)-Deep Fritz(depth 7) 13.5-6.5 Tiger14(depth 8)-Deep Fritz(depth 8) 10.5-9.5 Tiger14(depth 9)-Deep Fritz(depth 9) 14-6 Tiger14(depth 10)-Deep Fritz(depth 10) 9.5-10.5 Tiger14(depth 4)-Deep Fritz(depth 3) 17.5-2.5 Tiger14(depth 5)-Deep Fritz(depth 4) 19-1 Tiger14(depth 6)-Deep Fritz(depth 5) 18-2 Tiger14(depth 3)-Deep Fritz(depth 4) 6-14 Tiger14(depth 4)-Deep Fritz(depth 5) 8-12(this result should be 12.5-7.5 but deep fritz failed to mate because of having only part of the tablebases and the engines agreed to a draw in a position that the evaluation was mate against tiger). Tiger14(depth 5)-Deep Fritz(depth 6) 7-13 We need more games to get rating for programs at fixed depth. It will be interesting to get a nunn rating listfor chess programs at fixed depth in order to find out if there is diminishing return in the nunn match. In the game that Deep fritz drew because of not having the right tablebases Deep Fritz has a position of king and 2 pawns for king and a bishop. Deep Fritz had the KPP vs KB and also the KNP vs KB tablebases but had not the KQP vs KB tablebases so it promoted the pawn to a knight. Deep Fritz did not promote the second pawn to a queen or a rook because of not having the KQB vs KN or the KRB vs KN tablebases. Uri
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