From 904a016396013cacdf36d9c7fe4c562a330b33b4 Mon Sep 17 00:00:00 2001 From: Daniel Monroe Date: Fri, 28 Mar 2025 12:38:59 -0400 Subject: [PATCH] Don't use 5th continuation history in move ordering Passed simplification STC LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 136960 W: 35374 L: 35262 D: 66324 Ptnml(0-2): 420, 16214, 35049, 16428, 369 https://tests.stockfishchess.org/tests/view/67e6d0ae6682f97da2178ee5 Passed simplification LTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 233016 W: 59063 L: 59059 D: 114894 Ptnml(0-2): 113, 25430, 65421, 25428, 116 https://tests.stockfishchess.org/tests/view/67e9f7fb31d7cf8afdc44ad4 closes https://github.com/official-stockfish/Stockfish/pull/5978 Bench: 1842721 --- src/movepick.cpp | 1 - 1 file changed, 1 deletion(-) diff --git a/src/movepick.cpp b/src/movepick.cpp index 6ee5fad7c..11317f113 100644 --- a/src/movepick.cpp +++ b/src/movepick.cpp @@ -162,7 +162,6 @@ void MovePicker::score() { m.value += (*continuationHistory[1])[pc][to]; m.value += (*continuationHistory[2])[pc][to]; m.value += (*continuationHistory[3])[pc][to]; - m.value += (*continuationHistory[4])[pc][to] / 3; m.value += (*continuationHistory[5])[pc][to]; // bonus for checks