From f811a5693e5c65637923f5f72e6d95d9d7b4f858 Mon Sep 17 00:00:00 2001 From: Marco Costalba Date: Wed, 26 Mar 2014 06:39:46 +0100 Subject: [PATCH] Restore old aspiration window to 16 Tested directly at LTC because previous long test series on this topic shows it is TC dependant. Tested with no-regression mode because gets rid of an ugly and ad-hoc rule. Test at LTC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 67918 W: 10590 L: 10541 D: 46787 bench: 7926803 --- src/search.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/search.cpp b/src/search.cpp index b0e885c6..05773469 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -327,7 +327,7 @@ namespace { // Reset aspiration window starting size if (depth >= 5) { - delta = Value(depth > 23 ? 16 : 12); + delta = Value(16); alpha = std::max(RootMoves[PVIdx].prevScore - delta,-VALUE_INFINITE); beta = std::min(RootMoves[PVIdx].prevScore + delta, VALUE_INFINITE); } -- 2.39.2