kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-04-30 08:43:09 +00:00
Code Issues Releases Wiki Activity

Simplify futility equation

Browse source 
This is a functional simplification. The 178 constant for the futility equation
in master can be removed.

STC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 42626 W: 9508 L: 9428 D: 23690
http://tests.stockfishchess.org/tests/view/5d5d4e320ebc5925cf11254e

LTC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 26182 W: 4432 L: 4320 D: 17430
http://tests.stockfishchess.org/tests/view/5d5df70d0ebc5925cf112fee

Closes https://github.com/official-stockfish/Stockfish/pull/2278

Bench: 3985701
This commit is contained in:
protonspring 2019-08-22 08:27:26 -06:00 • committed by Stéphane Nicolet
parent 10d2ebc6ae
commit a016626825
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/search.cpp
View file

@ -64,7 +64,7 @@ namespace {
// Razor and futility margins
constexpr int RazorMargin = 661;
Value futility_margin(Depth d, bool improving) {
return Value(198 * (d / ONE_PLY) - 178 * improving);
return Value(198 * (d / ONE_PLY - improving));
}
// Reductions lookup table, initialized at startup