Chess engine: Axon 0.3

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Axon - a simple UCI chess engine.
Author: Jasper Sinclair  Rating CEDR=1702

v.0.3:
evaluation improvements
search improvements
PV Search
reverse futility pruning
SEE for move-ordering
SEE pruning in quiescence search
new search extensions
hash table improvements
rewritten UCI
bug fixes

axon requires a CPU w/ SSE4 POPCNT instruction set
a windows binary is available below:
elo estimate ~2500


Individual statistics: Axon 0.2 - 58 games (+  1,=  2,- 55),  3.4  %
Critter 1.6a                  :   4 (+  0,=  0,-  4),  0.0 %
SeeChess 1.2                  :   1 (+  0,=  0,-  1),  0.0 %
Galjoen 0.41.2                :   1 (+  0,=  0,-  1),  0.0 %
RofChade 3.0                  :   1 (+  0,=  0,-  1),  0.0 %
Benjamin 1.1                  :   1 (+  0,=  0,-  1),  0.0 %
NiCim 3.4                     :   1 (+  0,=  0,-  1),  0.0 %
Horowitz 2.2                  :   2 (+  0,=  1,-  1), 25.0 %
Nemorino 6.00                 :   1 (+  0,=  0,-  1),  0.0 %
Tantabus 2.0.0                :   2 (+  0,=  0,-  2),  0.0 %
ChessMatrix 1.0.6             :   1 (+  0,=  0,-  1),  0.0 %
Cinnamon 2.5                  :   1 (+  0,=  0,-  1),  0.0 %
Nalwald 16                    :   1 (+  0,=  0,-  1),  0.0 %
Black Marlin 7.0              :   1 (+  0,=  0,-  1),  0.0 %
Marvin 6.1.0                  :   1 (+  0,=  0,-  1),  0.0 %
Halogen 11                    :   1 (+  0,=  0,-  1),  0.0 %
CDrill 2000                   :   1 (+  0,=  1,-  0), 50.0 %
Stash 34.0                    :   1 (+  0,=  0,-  1),  0.0 %
Bienchen 1.0                  :   1 (+  0,=  0,-  1),  0.0 %
Kuma 1.0                      :   1 (+  0,=  0,-  1),  0.0 %
MadChess 3.2 beta             :   1 (+  0,=  0,-  1),  0.0 %
Caissa 1.4                    :   1 (+  0,=  0,-  1),  0.0 %
Mayhem 7.8                    :   1 (+  0,=  0,-  1),  0.0 %
Peacekeeper 0.12              :   1 (+  0,=  0,-  1),  0.0 %
RubiChess 20221203            :   1 (+  0,=  0,-  1),  0.0 %
Lc0 0.29.0-rc1                :   1 (+  0,=  0,-  1),  0.0 %
Alexandria 3.1.0              :   4 (+  0,=  0,-  4),  0.0 %
Sting Black Hole 2            :   6 (+  0,=  0,-  6),  0.0 %
RapChess 2022-12-08           :   2 (+  1,=  0,-  1), 50.0 %
Cheese 3.1.0                  :   3 (+  0,=  0,-  3),  0.0 %
Clover 3.2                    :   3 (+  0,=  0,-  3),  0.0 %
Minic 3.31                    :   2 (+  0,=  0,-  2),  0.0 %
Stockfish 091222 Ivec         :   2 (+  0,=  0,-  2),  0.0 %
Peacekeeper 1.0               :   2 (+  0,=  0,-  2),  0.0 %
Chess-rs 0.1.1                :   1 (+  0,=  0,-  1),  0.0 %
Leorik 2.3                    :   1 (+  0,=  0,-  1),  0.0 %
Jangine 2022-12-01            :   1 (+  0,=  0,-  1),  0.0 %
Captain 3.1                   :   1 (+  0,=  0,-  1),  0.0 %



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