This project adheres to semantic versioning.
- Fixed compile error caused by newest varion of GCC/Clang that prevented compilation in optimized mode due to an extraneous warning flag.
- Fixed a bug involving pawn move generation regarding quiet moves vs capture moves.
- Engine is better at playing bullet.
- In these time controls, the engine will only "think" for one second maximum when it finds a book move to play as opposed to the 2-4 second "think" time when playing blitz/rapid/classical/correspondence.
- Cleaned up the code and added comments. Should see slight performance boost where in 10 + 5 games the engine will get to a depth of ~7-9 before it plays a move on my 2017 MacBook Pro. Stronger computers should get to a deeper depth.
- Engine now comes with and can use Polyglot opening books. README instructions are updated and a bunch of books come bundled with the program.
- Added ability for engine to print moves in standard algebraic notation when playing in console mode.
- Fixed segfault in
evaluate.ccaused from adding king evaluation. - Updated engine's response to the
forcecommand.
- Fixed bug in
engine.cregarding thequitvariable to avoid undefined behavior.
- Added null move pruning to speed up searching.
- New null move creation/takeback functions added to
makemove.c - Function defs added to
functions.h. - New code used in
search.c
- New null move creation/takeback functions added to
- Fixed bug in
evaluate.cregarding incorrect metrics used to evaluate king safety. - Added bonus for keeping both bishops in the game/removing both of the opponent's bishops.
- Added material draw recognition. This recognition is for draws that are draws no matter what, not just theoretical draws.
- Updated/added piece evaluation for queens, pawns, rooks, kings.
- Added check evaluation so that being in check causes us to increase the depth, hopefully allowing us to find a move that gets us out of check.
- Finally released version 1.0.0! This build is pretty unoptimized, but will still play a decent game.