Combusken is a UCI-compliant open source chess engine using Alpha-beta algorithm.
The software saw its first release in 2020.
Combusken is free and open source software.
Features include:
- Bitboards
- Plain Magic Bitboards
- Search:
- Lazy SMP.
- Iterative Deepening.
- Aspiration Windows.
- Alpha-Beta.
- Transposition Table.
- Selectivity:
- Check Extensions.
- Castling Extension.
- Singular Extensions.
- Late Move Reductions.
- Null Move Pruning.
- Futility Pruning.
- Reverse Futility Pruning.
- Late Move Pruning.
- Static Exchange Evaluation Pruning.
- Move Ordering:
- Hash Move.
- Internal Iterative Deepening.
- MVV/LVA.
- Static Exchange Evaluation.
- Killer Heuristic.
- History Heuristic.
- Countermove Heuristic.
- Follow Up History.
- Evaluation:
- Tapered Eval.
- Material.
- Bishop Pair.
- Piece-Square Tables.
- Mobility.
- Outposts.
- Rook on (Half) Open File.
- Pawn-King Hash Table.
- Pawn Structure:
- Passed Pawn.
- Isolated Pawn.
- Doubled Pawn.
- Backward Pawn.
- Straggler.
- Connected Pawns.
- King Safety:
- Pawn Shield.
- Pawn Storm.
- Attacking King Zone.
- Hanging Pieces.
- Tempo.
- Automated Tuning using Gradient Descent.
Website: github.com/mhib/combusken
Support:
Developer: Marcin Henryk Bartkowiak
License: GNU General Public License v3.0
Combusken is written in Go and C. Learn Go with our recommended free books and free tutorials.
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