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Thursday, October 22, 2015

Stockfish 15102006 - new development version very strong chess engine UCI

Stockfish - chess engines UCI

Previous version chess engine Stockfish 

Author compilation - Mbootsector



Information on the compilation:
Lazy SMP 

Start all threads searching on root position and 
use only the shared TT table as synching scheme. 

It seems this scheme scales better than YBWC for 
high number of threads. 

Verified for nor regression at STC 3 threads 
LLR: -2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 40232 W: 6908 L: 7130 D: 26194 

Verified for nor regression at LTC 3 threads 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 28186 W: 3908 L: 3798 D: 20480 

Verified for nor regression at STC 7 threads 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 3607 W: 674 L: 526 D: 2407 

Verified for nor regression at LTC 7 threads 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 4235 W: 671 L: 528 D: 3036 

Tested with fixed games at LTC with 20 threads 
ELO: 44.75 +-7.6 (95%) LOS: 100.0% 
Total: 2069 W: 407 L: 142 D: 1520 

Tested with fixed games at XLTC (120secs) with 20 threads 
ELO: 28.01 +-6.7 (95%) LOS: 100.0% 
Total: 2275 W: 349 L: 166 D: 1760 

Original patch of mbootsector, with additional work 
from Ivan Ivec (log formula), Joerg Oster (id loop 
simplification) and Marco Costalba (assorted formatting 
and rework). 

Bench: 8116244 


JCER=3268

 Stockfish 15102006 - download



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