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Chess engine: Texel 1.08

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Texel - UCI Chess engines
Rating CEDR=3188, Author - Peter Osterlund

v.1.08:
2023-06-10: Texel 1.08
New features:
Allow arbitrary hash table sizes up to 1TiB of memory.
Add "contempt" UCI parameter.
Add automatic contempt depending on opponent name.
Add support for 7 man syzygy tablebases.
Add "runcmd" Windows program. Useful for GUIs that don't allow specifying command line arguments to the engine.

Bug fixes:
Fix crash in Windows NUMA/CPU discovery code.
Fixed rare crash when running in cluster mode.
Changed default "ponder" UCI option value to false.

Time management:
More dynamic time management.
Better time allocation for ponder on games.

Search:
Use depth-dependent singular extension threshold.
Add tempo bonus.

Reduced strength:
Add MaxNPS UCI parameter.
Make reduced strength work for Threads > 1.
Add UCI_LimitStrength and UCI_Elo support, range -625 - 2540.

Infrastructure:
Use CMake instead of a handwritten Makefile.
Use Google Test framework instead of CUTE.

texelutil:
Use C++ threads instead of OpenMP.
Build texelutil with reduced functionality even if Armadillo and GSL libraries are not found.
Add a reverse move generator, "texelutil revmoves".
Improve "texelutil proofgame" for random positions.
Add "texelutil rndfen" to generate random positions.

Documentation:
Document how to estimate number of legal chess positions.
Document the Texel tablebase probing algorithm.


 Texel 1.08 download
All files (games, tables and engines) - download from page

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