Stockfish 17042905 - new version!

Stockfish, chess engine UCI
Leader rating list JCER = 3405
🔬 Author: Joost VandeVondele


Timestamp: 1493436544 

Copy killers in the movepicker 
ss->killers can change while the movepicker is active. 
The reason ss->killers changes is related to the singular 
extension search in the moves loop that calls search<> 
recursively with ss instead of ss+1, 
effectively using the same stack entry for caller and callee. 
By making a copy of the killers, the movepicker does the right thing nevertheless. 

Tested as a bug fix 

LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 70845 W: 12752 L: 12716 D: 45377 

LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 28368 W: 3730 L: 3619 D: 21019 

Bench: 6465887 
Closes #1085 
⭐⭐⭐   Stockfish 17042905 - download


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