Dev Builds » 20191208-2310

Use this dev build

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.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN

Commit

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 https://tests.stockfishchess.org/tests/view/5de68a5bb407ee7bfda68a94 LTC : LLR: 2.95 (-2.94,2.94) [0.00,3.50] Total: 180217 W: 29214 L: 28551 D: 122452 https://tests.stockfishchess.org/tests/view/5de690a4b407ee7bfda68a9a 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 https://tests.stockfishchess.org/tests/view/5debb790b7bdefd50db28d14 LTC : LLR: 2.96 (-2.94,2.94) [0.00,3.50] Total: 134151 W: 21729 L: 21191 D: 91231 https://tests.stockfishchess.org/tests/view/5debc13fb7bdefd50db28d19 No functional change
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