Chess engine: Black Marlin 7.0 NNUE (Windows and Linux)

Black Marlin - UCI engine, Author: Doruk SEKERCIOGLU

Rating CEDR=3132

v.7.0:

Search

Black Marlin's search now includes the threats idea from Koivisto. There are various other search tweaks, though most notably, the search algorithm has been tuned automatically via the usage of SPSA. The new search parameters result in a much wider, yet much stronger search.

Evaluation

The neural network has doubled in size and has been trained on a much larger dataset than previously done. This data has been generated by the author of Seer and resulted in significant gains.

Self Play Results

ELO | 134.35 +- 3.48 (95%)

CONF | 8.0+0.08s Threads=1 Hash=8MB

GAMES | N: 20000 W: 8935 L: 1565 D: 9500

Testing

Testing has been done on the main OpenBench instance. Aside from increased hardware, this has the added benefit of ideas being verified by various other engine authors. Thanks to Andrew Grant and all the engine authors on the instance.

Binaries Ordered by Runtime Performance:

AVX512F + POPCNT

AVX2 + POPCNT

SSE4.2 + POPCNT

SSSE3 + POPCNT

POPCNT

Individual statistics: Black Marlin 5.0 - 37 games CEDR (+ 11,=  9,- 17), 41.9 %

Fritz 17                      :   2 (+  0,=  2,-  0), 50.0 %

Raubfisch X48e                :   2 (+  0,=  1,-  1), 25.0 %

Kayra 1.3                     :   2 (+  0,=  0,-  2),  0.0 %

Stockfish 15                  :   1 (+  0,=  1,-  0), 50.0 %

Fisherov 0.98k                :   2 (+  0,=  0,-  2),  0.0 %

Fisherov 0.98g                :   2 (+  0,=  0,-  2),  0.0 %

Wasp 5.50                     :   1 (+  0,=  0,-  1),  0.0 %

Komodo 13.02                  :   1 (+  0,=  0,-  1),  0.0 %

Arasan 23.3                   :   1 (+  0,=  0,-  1),  0.0 %

Stockfish 030522              :   2 (+  0,=  1,-  1), 25.0 %

CorChess 060522               :   2 (+  0,=  0,-  2),  0.0 %

Hiarcs 15.5                   :   2 (+  0,=  2,-  0), 50.0 %

Caligula 1.0b                 :   2 (+  2,=  0,-  0), 100.0 %

Avalanche 0.2.2               :   2 (+  2,=  0,-  0), 100.0 %

Stash 33.0                    :   2 (+  1,=  1,-  0), 75.0 %

Crystallite 1.1a              :   2 (+  0,=  0,-  2),  0.0 %

Avalanche 0.3a                :   2 (+  1,=  1,-  0), 75.0 %

RofChade 3.0                  :   1 (+  0,=  0,-  1),  0.0 %

Rebel 15x2                    :   1 (+  1,=  0,-  0), 100.0 %

Fritz 15                      :   1 (+  1,=  0,-  0), 100.0 %

Blue Marlin 15.2a             :   1 (+  0,=  0,-  1),  0.0 %

Protej 0.6.3                  :   1 (+  1,=  0,-  0), 100.0 %

Alexandria 2.1.0              :   1 (+  1,=  0,-  0), 100.0 %

Odonata 0.6.2                 :   1 (+  1,=  0,-  0), 100.0 %

Black Marlin 7.0 download from page