Dev Builds » 20160924-1756

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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 351844061eddffac59e7a3c2d16af7ea9661bb3e
Author joergoster
Date 2016-09-24 17:56:02 UTC
Allowing singular extension in mate positions Drop useless condition abs(ttValue) < VALUE_KNOWN_WIN And extend singular extension search to cases when ttValue stores a mate score. This improves mate finding and does not introduce any regression. Yery tested this patch against current master on the 6500+ Chest mate suite with 200K fixed nodes: shortest mates found: master: 1206 patch:1205 any mate found: master: 1903 patch: 2003 with 1 sec time: shortest mates found: master: 2667 patch: 2628 any mate found: master: 3585 patch: 3646 Verified for no regression: STC LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 25655 W: 4578 L: 4465 D: 16612 LTC LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 66247 W: 8618 L: 8557 D: 49072 bench: 6335042
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