DON Chess Engine

DON Chess Engine – Major Update Released!
I’ve just pushed a major update to my DON chess engine on GitHub! This update includes several improvements, optimizations, and new features that enhance DON’s strength, efficiency, and overall performance.

Key Improvements in This Update:
Search Optimizations:

Enhanced move ordering with improved history heuristics and killer move tracking.
Improved quiescence search for better tactical accuracy.
Refined null move pruning and late move reductions, leading to deeper searches.
Evaluation Enhancements:

More accurate pawn structure evaluation including isolated and doubled pawns.
Improved king safety evaluation and mobility factors.
Enhanced tuning of piece-square tables for better positional play.
Bitboard & Move Generation Speed-Up:

Optimized bitboard operations for faster move generation.
Improved magic bitboards for efficient sliding piece attacks.
Threading & Parallel Search Improvements:

Improved multi-threading support for better scaling on multi-core systems.
More efficient lazy SMP (Shared Memory Parallelism) implementation.
UCI Protocol Enhancements:

Improved time management and move selection in bullet and blitz games.
Fixed minor UCI bugs for smoother interaction with GUI interfaces like Arena and Cute Chess.
Bug Fixes & Stability Improvements:

Fixed rare crashes in endgame scenarios.
Improved hash table efficiency, reducing collisions and increasing hit rates.

Now I updated the master branch with the latest changes.

Here is the link to the source code:
GitHub - DON Chess Engine
https://github.com/ehsanrashid/DON/

Thanks

Ehsan Rashid

I uploaded the new DON Chess Engine executables
This time it has Fix for Load error also.
Including the GUI (Fritz 19, Scid and others)
and some major updates.

here are the links:

DON x64 AVX2.exe
https://pixeldrain.com/u/WoMCtC3H

DON x64 BMI2.exe
https://pixeldrain.com/u/ckpkLgT9

try and let me know if it works

Thanks
Ehsan Rashid

I uploaded the new DON Chess Engine executables
This time it has Fix for Load error also.
Including the GUI (Fritz 19, Scid and others)
and some major updates.

here are the links:

DON x64 AVX2.exe
https://pixeldrain.com/u/3skXkLKS

DON x64 BMI2.exe
https://pixeldrain.com/u/bc7ADSNM

try and let me know if it works

Thanks
Ehsan Rashid

I uploaded the new DON Chess Engine executables
This time it has Fix for Load error also.
Including the GUI (Fritz 19, Scid and others)
and some major updates.

here are the links:

DON x64 SSSE3.exe
https://pixeldrain.com/u/CFcmG73A

DON x64 SSE4.1.exe
https://pixeldrain.com/u/cMFc1eAG

DON x64 AVX2.exe
https://pixeldrain.com/u/wZMQdvSD

DON x64 BMI2.exe
https://pixeldrain.com/u/Fybesr7Z

try and let me know if it works

Thanks
Ehsan Rashid

I uploaded the new DON Chess Engine executables
Including fix for the GUI (Fritz 19, Scid and others)
and some major updates.

here are the links:

"DON x64 SSSE3"
https://pixeldrain.com/u/x6oYM3ik

"DON x64 SSE4.1"
https://pixeldrain.com/u/PvHphnA8

"DON x64 AVX2"
https://pixeldrain.com/u/7h3Q9Uyk

"DON x64 BMI2"
https://pixeldrain.com/u/ShdtyeWz

try and let me know if it works

Thanks
Ehsan Rashid

I uploaded the new DON Chess Engine executables
Some major updates and speedup.

here are the links:

DON x64 SSSE3.exe
https://pixeldrain.com/u/rh9nofA6

DON x64 SSE4.1.exe
https://pixeldrain.com/u/GoPZ3V7B

DON x64 AVX2.exe
https://pixeldrain.com/u/8cBfdUhW

DON x64 BMI2.exe

DON x64 AVXVNNI.exe
https://pixeldrain.com/u/8QCMemz2

DON x64 VNNI256.exe
https://pixeldrain.com/u/cubVnjN1

Try and let me know how it works

Thanks
Ehsan Rashid