Cerulean
Chess engine View source on GitHub
A chess engine written in C.
Features
- 0x88 board representation
- Zobrist key hashing
- Winboard support
- Perft test suite
- Search test suite
- Runs on Mac/Linux/Windows
Performance
Perft(6) on my 2.4 GHz Intel Core i7 2760QM computer with 8 GB RAM.
| Position FEN | Perft(6) | Time (s) | Moves/s |
|---|---|---|---|
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1 | 119060324 | 4.677 | 25455807.4 |
r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - 0 1 | 8031647685 | 328.109 | 24478596.7 |
Commands
$ ./cerulean help Commands -------- display Draws the board divide n Divides the current board to a depth of n e2e4 Moves from the current position, and thinks go Forces the engine to think undo Subtracts the previous move new Sets up the default board position setboard [FEN] Sets the board to whatever you want perfttest Runs the perft test suite searchtest Runs the search test suite eval Performs a static evaluation of the board and prints info white Sets the active colour to WHITE black Sets the active colour to BLACK time [INT] Sets engine's time (in centiseconds) otim [INT] Sets opponent's time (in centiseconds) exit Exits the menu help Gets you this magical menu