Small eval randomization for drawn terminal nodes #135
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Idea from Stockfish The small randomization, using the thread's node count, ensures that when different potential 3-fold lines are available, the search keeps exploring different lines. This helps to discover lines where one side can escape the 3-fold with advantage. This is especially useful at longer TCs. ELO | 1.28 +- 2.10 (95%) SPRT | 12.0+0.12s Threads=1 Hash=8MB LLR | -0.43 (-2.94, 2.94) [0.00, 4.00] Games | N: 49920 W: 11997 L: 11813 D: 26110 http://chess.grantnet.us/viewTest/4797/ ELO | 3.63 +- 2.88 (95%) SPRT | 60.0+0.6s Threads=1 Hash=64MB LLR | 2.97 (-2.94, 2.94) [0.00, 5.00] Games | N: 21050 W: 4092 L: 3872 D: 13086 http://chess.grantnet.us/viewTest/4799/ BENCH : 5,132,900
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Idea from Stockfish.
The small randomization, using the thread's node count, ensures that when different potential 3-fold lines are available, the search keeps exploring different lines. This helps to discover lines where one side can escape the 3-fold with advantage. This is especially useful at longer TCs.
ELO | 1.28 +- 2.10 (95%)
SPRT | 12.0+0.12s Threads=1 Hash=8MB
LLR | -0.43 (-2.94, 2.94) [0.00, 4.00]
Games | N: 49920 W: 11997 L: 11813 D: 26110
http://chess.grantnet.us/viewTest/4797/
ELO | 3.63 +- 2.88 (95%)
SPRT | 60.0+0.6s Threads=1 Hash=64MB
LLR | 2.97 (-2.94, 2.94) [0.00, 5.00]
Games | N: 21050 W: 4092 L: 3872 D: 13086
http://chess.grantnet.us/viewTest/4799/
BENCH : 5,132,900