Crabby is an original UCI chess engine written in the Rust programming language. Crabby gets its name from the Rust mascot, Ferris the crab. This project is an experiment to learn a new language and explore chess programming. I would greatly appreciate all feedback on my progress for both!
This fork of Crabby should not be dependent on nightly features any longer, so it can be built using the latest stable version of Cargo using the following commands:
git clone https://github.com/Johnson-A/Crabby.git
cd Crabby
cargo build --release
./target/release/crabbyTo make use of native CPU features and run the performance benches for some functions, you can run the Makefile or run the commands in the Makefile.
cargo rustc --release --lib -- -C target-feature=+popcnt -C target-cpu=native
cargo rustc --release --bin crabby -- -C target-feature=+popcnt -C target-cpu=native
cargo bench --bench testing
- Nega-Max alpha beta pruning
- Iterative deepening
- PVS
- Quiescence Search
- Null move pruning
- Late Move Reduction
- Killer move heuristic
- Static exchange evaluation
- Transposition Table with Zobrist hashing
- Bitboard based representation
- Magic move generation
- Aspiration window
- Time manager -> improvements
- PVS or MTD(f) -> improvements
- Piece-square evaluation
- Evaluation -> improvements
- 50 move rule
- Multi-threaded search
- Parameter Optimization
- UCI option parsing and implementation
- Migrate to criterion for benches
- perft x - Run perft to a depth x
- test move - Run perft on many positions to validate move generation
- test perf - Search to a given depth in many positions to test performance
I'd like to thank the chess programming wiki, the talk chess forums, and the open source Stockfish engine for being great resources.
Crabby is licensed under the GNU General Public License (GPLv2) as specified in the LICENSE.