My test for Ethereal 12.75 x64-pext-avx2_final_release

[Sylwy]

Test conditions:
-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Books: IM_4mvs.abk (8 plies book) for both engines
-default settings for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-OS: Windows 10 Home
-6-men Syzygy bases for both engines.





Komodo 14 x64 has ..................................3450 Elo points-CCRL Blitz
Ethereal 12.75 x64-pext-avx2_final_release.....around 3422 Elo points (3450-28)
Ethereal 12.50 x64 has..............................3380 Elo points-CCRL Blitz

Ethereal 12.75 x64-pext-avx2_final_release is about 42 Elo points above Ethereal 12.50 x64.
Ethereal 12.75 x64-pext-avx2 SF-NNUE is about 182 Elo points above Ethereal 12.75 x64-pext-avx2_final_release.

[Tony P.]

Thanks for the test! It will be funny if further testing confirms that Andrew has accidentally written a better or equal search backend for SF nets than SF itself

[AndrewGrant]

Its a copy paste job of Stockfish.

However, I have written an NNUE trainer that is probably better than SF's. I've just not used it yet.