kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-04-30 00:33:09 +00:00
Code Issues Releases Wiki Activity

Increase reduction at root

Browse source 
when the best move does not change frequently

STC:
LLR: 2.94 (-2.94,2.94) {-0.25,1.25}
Total: 51320 W: 5159 L: 4956 D: 41205
Ptnml(0-2): 215, 3897, 17242, 4082, 224
https://tests.stockfishchess.org/tests/view/5faa072367cbf42301d6a767

LTC:
LLR: 2.98 (-2.94,2.94) {0.25,1.25}
Total: 15952 W: 762 L: 642 D: 14548
Ptnml(0-2): 8, 561, 6725, 667, 15
https://tests.stockfishchess.org/tests/view/5faa4c3567cbf42301d6a794

closes https://github.com/official-stockfish/Stockfish/pull/3225

Bench: 3954692
This commit is contained in:
SFisGOD 2020-11-10 18:28:43 +01:00 • committed by Stéphane Nicolet
parent b5781150ea
commit 285bf7041a
2 changed files with 4 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
AUTHORS
View file

@ -86,7 +86,7 @@ Jekaa
Jerry Donald Watson (jerrydonaldwatson)
jjoshua2
Jonathan Calovski (Mysseno)
Jonathan Dumale (SFisGOD)
Jonathan Buladas Dumale (SFisGOD)
Joost VandeVondele (vondele)
Jörg Oster (joergoster)
Joseph Ellis (jhellis3)

5
src/search.cpp
View file

@ -1161,7 +1161,7 @@ moves_loop: // When in check, search starts from here
if (thisThread->ttHitAverage > 509 * TtHitAverageResolution * TtHitAverageWindow / 1024)
r--;
// Reduction if other threads are searching this position
// Increase reduction if other threads are searching this position
if (th.marked())
r++;
@ -1169,7 +1169,8 @@ moves_loop: // When in check, search starts from here
if (ss->ttPv)
r -= 2;
if (!PvNode && depth > 10 && thisThread->bestMoveChanges <= 2)
// Increase reduction at root and non-PV nodes when the best move does not change frequently
if ((rootNode || !PvNode) && depth > 10 && thisThread->bestMoveChanges <= 2)
r++;
if (moveCountPruning && !formerPv)