From 7c94376bbae3f051daa5fc42bfb0f1a2ae533536 Mon Sep 17 00:00:00 2001 From: Fabian Fichter Date: Sat, 30 Jan 2021 23:45:01 +0100 Subject: [PATCH] Tweak probcut margin for extinction variants shatranj STC LLR: 2.95 (-2.94,2.94) [0.00,10.00] Total: 1753 W: 212 L: 146 D: 1395 http://www.variantfishtest.org:6543/tests/view/601473246e23db669974e64a shatranj LTC LLR: 2.97 (-2.94,2.94) [-10.00,5.00] Total: 2653 W: 205 L: 173 D: 2275 http://www.variantfishtest.org:6543/tests/view/60148af66e23db669974e65e horde LTC LLR: 2.96 (-2.94,2.94) [-10.00,5.00] Total: 1249 W: 648 L: 589 D: 12 http://www.variantfishtest.org:6543/tests/view/60148b226e23db669974e660 --- src/search.cpp | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/search.cpp b/src/search.cpp index 7dd9a69..943baf9 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -977,7 +977,7 @@ namespace { } } - probCutBeta = beta + (183 + 20 * !!pos.capture_the_flag_piece() + 50 * pos.captures_to_hand()) * (1 + pos.check_counting() + (pos.extinction_value() != VALUE_NONE)) - 49 * improving; + probCutBeta = beta + (183 + 20 * !!pos.capture_the_flag_piece() + 50 * pos.captures_to_hand()) * (1 + pos.check_counting() + pos.extinction_single_piece()) - 49 * improving; // Step 10. ProbCut (~10 Elo) // If we have a good enough capture and a reduced search returns a value -- 1.7.0.4