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============================== My email: jotes@go2.pl



New version chess engine: Lux 4.0

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Lux - UCI chess engine  Rating CEDR=2491
Lux - is the chess engine dev's Library of Alexandria. Definitely go check it out.

Libraries 
Chess package for C++: https://github.com/Disservin/chess-library

Other Engine Insiprations
[antikythera](https://github.com/0hq/antikythera)
[Bit-Genie](https://github.com/Aryan1508/Bit-Genie)
[Blunder](https://github.com/algerbrex/blunder)
[Rice](https://github.com/rafid-dev/rice)
And of course, [Stockfish](https://github.com/official-stockfish/Stockfish)

v.4.0:
Score of Lux 4.0 vs Lux 3.5: 127 - 55 - 80  [0.637] 262
...      Lux 4.0 playing White: 69 - 24 - 38  [0.672] 131
...      Lux 4.0 playing Black: 58 - 31 - 42  [0.603] 131
...      White vs Black: 100 - 82 - 80  [0.534] 262
Elo difference: 98.0 +/- 35.9, LOS: 100.0 %, DrawRatio: 30.5 %
SPRT: llr 2.95 (100.2%), lbound -2.94, ubound 2.94 - H1 was accepted
Search Upgrades
 AlphaBeta Negamax
 Quiescence Search
 Transposition Table
 Aspiration Window
 Principal Variation Search
 Improving Heuristic
 Check Extensions
 Reverse Futility Pruning
 Null Move Pruning
 History Pruning
 Late Move Reduction
Eval Upgrades
 Material Score
 Piece-Square Tables
 Bishop Pair
 Open / Semi-Open File
Move Ordering Upgrades
 TT-Move
 Promotions
 MVV-LVA
 History Heuristic [Piece][To]
 Killer Moves


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