Simplify Reductions Initialization

BM123499 · vondele · commit e47b74457ef1 · 2021-06-28T21:12:04.000+02:00
passed STC: LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 45032 W: 3600 L: 3518 D: 37914 Ptnml(0-2): 111, 2893, 16435, 2957, 120 https://tests.stockfishchess.org/tests/view/60d2655d40925195e7a6c527 LTC: LLR: 3.00 (-2.94,2.94) <-2.50,0.50> Total: 25728 W: 786 L: 722 D: 24220 Ptnml(0-2): 5, 650, 11494, 706, 9 https://tests.stockfishchess.org/tests/view/60d2b14240925195e7a6c577 closes official-stockfish#3584 bench: 4602977
diff --git a/src/search.cpp b/src/search.cpp
@@ -152,7 +152,7 @@ namespace {
 void Search::init() {
 
   for (int i = 1; i < MAX_MOVES; ++i)
-      Reductions[i] = int(21.3 * std::log(i + 0.25 * std::log(i)));
+      Reductions[i] = int(21.9 * std::log(i));
 }
 
 

Original file line number	Diff line number	Diff line change
`@@ -152,7 +152,7 @@ namespace {`
`152`	`152`	`void Search::init() {`
`153`	`153`
`154`	`154`	`for (int i = 1; i < MAX_MOVES; ++i)`
`155`		`- Reductions[i] = int(21.3 * std::log(i + 0.25 * std::log(i)));`
	`155`	`+ Reductions[i] = int(21.9 * std::log(i));`
`156`	`156`	`}`
`157`	`157`
`158`	`158`