Chess engine for Android: Fatalii 0.4.0

Fatalii - UCI chess engine

Author: Patrick Heck, Rating CEDR=2250 (for Windows)

Challenge me on Lichess: https://lichess.org/@/FataliiBot

v.0.4.0:

Improvements

Added null move pruning

Added futility pruning

Added reverse futility pruning

Transposition table

Now uses a bucket system with 4 entries per bucket

Improved replacement scheme based on entry age and depth

Evaluation

Draws by insufficient material are now detected

Added a small tempo bonus for the side to move

Slightly tuned PSTs by hand (hopefully for the last time, planning to automate this in the future :D)

UCI

info now prints exact mate scores. No more 327.66 scores!

Individual statistics: Fatalii 0.2.1 - 64 games (+ 5,= 3,- 56), 10.2 % (for Windows)

RofChade 3.0 : 2 (+ 0,= 0,- 2), 0.0 %

Raubfisch X48d3 : 2 (+ 0,= 0,- 2), 0.0 %

Fisherov chess monk 1.2 : 4 (+ 0,= 0,- 4), 0.0 %

Knightx 3.4 : 2 (+ 0,= 0,- 2), 0.0 %

Atlas 4.25 : 2 (+ 0,= 0,- 2), 0.0 %

Minic 3.28 : 4 (+ 0,= 0,- 4), 0.0 %

Avalanche 1.2.0 : 4 (+ 0,= 0,- 4), 0.0 %

BigBallz 010922 : 4 (+ 0,= 0,- 4), 0.0 %

Kayra 1.5 Dynamics : 2 (+ 0,= 0,- 2), 0.0 %

Fire-zero 09022022 : 2 (+ 0,= 0,- 2), 0.0 %

Trinket 2.0.0 : 4 (+ 1,= 3,- 0), 62.5 %

Frozenight 5.0.0 : 4 (+ 0,= 0,- 4), 0.0 %

MadChess 3.1 : 4 (+ 0,= 0,- 4), 0.0 %

Viridithas 2.6.0 : 2 (+ 0,= 0,- 2), 0.0 %

StockNemo 5.3.0.0 : 2 (+ 0,= 0,- 2), 0.0 %

CT800 1.44 : 4 (+ 0,= 0,- 4), 0.0 %

Rusty Pigeon 1.0 : 2 (+ 2,= 0,- 0), 100.0 %

Lumac0 14.0 : 2 (+ 2,= 0,- 0), 100.0 %

Stockfish 070922 : 4 (+ 0,= 0,- 4), 0.0 %

Weiss 2.1 dev : 4 (+ 0,= 0,- 4), 0.0 %

Fire-zero 09112022 : 2 (+ 0,= 0,- 2), 0.0 %

Deep Rybka 4.1 : 2 (+ 0,= 0,- 2), 0.0 %

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