Dev Builds » 20191208-2310

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NCM plays each Stockfish dev build 20,000 times against Stockfish 14. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.


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Commit ID 20484ccdd5876deee4138d8badea4ef44b73341f
Author xoto10
Date 2019-12-08 23:10:47 UTC
Tweak time management (failing eval) Adjust fallingEval with score change in last 5 iterations. FallingEval adjusts the time used on a move depending on whether the position score is better or worse than on the previous move. This change adds a dependency on the score change in the last 5 iterations of the current search. Tests with original code: STC : LLR: 2.97 (-2.94,2.94) [-1.50,4.50] Total: 18728 W: 4170 L: 4005 D: 10553 LTC : LLR: 2.95 (-2.94,2.94) [0.00,3.50] Total: 180217 W: 29214 L: 28551 D: 122452 Revised code using a simple array instead of a deque and different values gave a slightly quicker pass at LTC. The merged patch now uses this: STC : LLR: 2.96 (-2.94,2.94) [-1.50,4.50] Total: 18616 W: 4114 L: 3950 D: 10552 LTC : LLR: 2.96 (-2.94,2.94) [0.00,3.50] Total: 134151 W: 21729 L: 21191 D: 91231 No functional change
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