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New version chess engine: Stormphrax 4.0.0

on
 


Stormphrax, UCI chess engine implemented NNUE
Rating CEDR=3454

v.4.0.0:
new network (edgelands)
huge SMP time management improvements
NMP verification search
a few other miscellaneous search improvements
tuned (almost) everything
the usual various tweaks and fixes
Stormphrax 4.0.0, no longer using basically no time with multiple threads. This release is a significant strength improvement, most noticeable in SMP games. Puzzle performance should also be improved somewhat, though please note that this is by no means a primary development focus.

Results against Stormphrax 3.0.0
STC:

ELO   | 89.48 +- 7.33 (95%)
CONF  | 8.0+0.08s Threads=1 Hash=32MB
GAMES | N: 3024 W: 938 L: 176 D: 1910
LTC:

ELO   | 69.71 +- 10.58 (95%)
CONF  | 60.0+0.60s Threads=1 Hash=128MB
GAMES | N: 1000 W: 229 L: 31 D: 740
SMP (3 threads):

ELO   | 105.63 +- 12.09 (95%)
CONF  | 20.0+0.20s Threads=3 Hash=64MB
GAMES | N: 1000 W: 320 L: 25 D: 655
FRC STC:

ELO   | 108.14 +- 14.31 (95%)
CONF  | 8.0+0.08s Threads=1 Hash=32MB
GAMES | N: 1008 W: 379 L: 75 D: 554



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