HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-22 18:17:02 +08:00
Code Issues Packages Projects Releases Wiki Activity

Remove essentially unused code

Browse Source 
this was added recently as part of a larger commit, but only changes eval of positions at MAX_PLY depth a little. Can be safely removed:

passed STC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 7424 W: 1640 L: 1492 D: 4292
http://tests.stockfishchess.org/html/live_elo.html?5ba3bcbe0ebc592cf27677ff

passed LTC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 73554 W: 12028 L: 11990 D: 49536
http://tests.stockfishchess.org/html/live_elo.html?5ba397ee0ebc592cf2767556

unchanged Bench: 4248710
This commit is contained in:
Joost VandeVondele
2018-09-20 14:50:39 +02:00
committed by Stéphane Nicolet
parent 13d06edb84
commit bbf9daa175
1 changed files with 1 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/search.cpp
View File

@@ -584,8 +584,7 @@ namespace {
if ( Threads.stop.load(std::memory_order_relaxed)
|| pos.is_draw(ss->ply)
|| ss->ply >= MAX_PLY)
return (ss->ply >= MAX_PLY && !inCheck) ? evaluate(pos) - 10 * ((ss-1)->statScore > 0)
: VALUE_DRAW;
return (ss->ply >= MAX_PLY && !inCheck) ? evaluate(pos) : VALUE_DRAW;
// Step 3. Mate distance pruning. Even if we mate at the next move our score
// would be at best mate_in(ss->ply+1), but if alpha is already bigger because