5.1c

• Fix *.sh scripts and make them working
• Revise how the distribution looks like:
• Pack all java classes and NNUE data file into a single jar file
• Move bat/sh scripts to the root of the distribution
• Add a configured main class to run the engine in order to remove the necessary program arguments in the scripts

5.1b

• Singular move extension implemented
• Revise search and move ordering
• Revise time management

5.1a

• Updated logo
• Updated NUEE network file with new version
• Bug fixing for an issue which appears on very fast time control (e.g. 40/0:01+0.01)
• Bug fixing of PV line - now the last move is always valid
• Bug fixing for negative mate scores reported to GUI
• Disable chess extension but make sure qsearch extends all check positions with search of depth 1
• Disable Mop-up evaluation and rely on the NNUE evaluation
• LMR skips are more often on moves which produce beta cutoffs

5.1

NNUE in Java based on Bullet trainer and custom training process. More info: https://github.com/bagaturchess/Bagatur/tree/master/NNUE

5.0

• NNUE Java porting implemented and works correctly without incremental updates. More info: https://github.com/bagaturchess/Bagatur/tree/master/NNUE
• Switching the default evaluation to NNUE Java as it is now stronger than the classical version. (Which was not the case with JNI NNUE version introduced in version 4.1a)

4.1a

• NNUE support - adding script files for running under Linux for both 1 core and multicore versions
• NNUE support - adding exe and bat files for multicore version under Windows

4.1

• Optimizations and bugfixing in the evaluation function

4.0

• Adding exe and bat file for NNUE version of Bagatur, currently under Windows only. More information: https://github.com/bagaturchess/Bagatur/tree/master/NNUE
• Optimizations in the evaluation function - use int instead of double during calculations
• Use directly the Transposition Table score in the root search node too

3.7e

• Bugfixing - mate with bishop and knight is now possible.
• EGTB Handling: return score directly if there is EGTB hit.
• EGTB Handling: search scores of Draw and EGTB hits are now stored in TT again.

3.7d

• 3.7c is still weaker than version 3.0. These changes in 3.7d aim to restore the ELO strength.
• Move ordering: bad captures are now before quiet moves (like in version 3.0).
• Search: Randomize move lists before sorting 2.5 times more often.
• Search: Switch on Adaptive LMR, it keeps around 5% of all nodes not reduced by LMR.
• EGTB Handling: search scores of Draw, Mate and EGTB hits are not stored in TT.