Dev Builds » 20190208-0854

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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 dd4796fcd5559847d4b8aab7d21ffff9929799ce
Author protonspring
Date 2019-02-08 08:54:38 UTC
Remove Some Bitboard Arrays (#1963) This is non-functional. These 5 arrays are simple enough to calculate real-time and maintaining an array for them does not help. Decreases the memory footprint. This seems a tiny bit slower on my machine, but passed STC well enough. Could someone verify speed? STC LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 44745 W: 9780 L: 9704 D: 25261 The slowdown is minimal even in 32 bit case (thanks to @mstembera for testing): Compiled using make build ARCH=x86-32 CXX=i686-w64-mingw32-c++ and benched This patch only: ``` Results for 40 tests for each version: Base Test Diff Mean 1455204 1450033 5171 StDev 49452 34533 59621 p-value: 0.465 speedup: -0.004 ``` No functional change.
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