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Friday, October 30, 2015

Stockfish 15103001 - new development version very strong chess engine UCI

Stockfish - chess engines UCI

Previous version chess engine Stockfish 

Author compilation - 
Ajith


Information on the compilation:
Reduce variation in rootDepth between different threads 

Reduce the variation in Root Depth between different threads. This 
prevents threads from searching at a depth much higher than Main Thread. 

Performed well at STC 24 Threads: 
ELO: 3.44 +-3.8 (95%) LOS: 96.1% 
Total: 10000 W: 1627 L: 1528 D: 6845 

And LTC 24 Threads 
LLR: 1.43 (-2.94,2.94) [0.00,4.00] 
Total: 3804 W: 500 L: 420 D: 2884 
ELO : +7.31 
p-value: 73.16% 

Passed no regression at STC 3 Threads: 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 40457 W: 7148 L: 7060 D: 26249 

And LTC 3 Threads: 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 17704 W: 2489 L: 2364 D: 12851 

Raising a pull request early as 24 Thread tests are very expensive and 
this is clearly a positive gain at high thread counts and high time 
controls. The change is a small parameter tweak with no additional 
logic. 

No functional change for single thread mode. 

Resolves #481


JCER=3256

 Stockfish 15103001 - download



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