0.2.3

Notable changes

• Fixed bug in validating castle moves
• Fixed bug in validating king safety for en-passant captures
• Fixed bug in piece-square tables setup: tables now mirror correctly for each side to move.
• In CLI mode, user now prevented from executing a search without first specifying a position. This would previously result in an un-handled panic.
• Singular extensions no longer used in search. This may be added back in a future release.

0.2.2

Notable changes

• Fixed uselessly high "safety margin" in game timer which was causing problems in games with fast time controls.

0.2.1

Notable changes

• Change default value of UCI option name CPU to fix incompatibility with some GUIs.

0.2.0

Notable changes

• Implements memory recycling on a per-goroutine basis to reduce memory allocations and GC pressure.
• Speed improvement of approx. 18% in nodes per second (NPS) over v0.1.1.
• New UCI option to set number of search threads, defaulting to one search process (goroutine) per logical core.
• Expanded time control options:
  • per-game
  • per-game plus time increment
  • fixed-depth
  • fixed time per move
• Minor bug-fixes and optimizations

0.1.1

Notable changes

• Improvements to sorting of promotion moves.
• Fixed bug that would prevent legal castling in rare instances.
• Implemented separate -cpuprofile and -memprofile command-line flags to simplify profiling.

0.1.0

Notable Changes

• This is the first official release.