Maverick 1.5 (Leiden WCCC 2015) Released

I’m happy to announce the release of Maverick 1.5. This is close to the version which competed in the 2015 World Computer Chess Championship in Leiden. I’d estimate that it’s only about +50 ELO better than version 1.o (based on self play). I’m about to embark on a rewrite of the evaluation function so I thought it a worthwhile launch.

The main changes are:

  • Tweaks to the piece square tables (especially pawns)
  • Added endgame knowledge
  • Less selectivity
  • Fixed a quiescent search bug which unnecessarily research some moves

You can download it below or from the Download Page. I’ve only included a 32 bit and 64 bit version which should work on most systems. If anyone would like to create a Linux / Apple Mac compile then I’d be happy to include it in with this version. The source is available here