Monday, May 4, 2015

Nirvanachess 2.1 Release

What is new in this release?

  •  Tuning with Texel's tuning method
    • Improved king safety evaluation
    • Improved threats evaluation
    • Improved mobility evaluation
  •  SPSA tuning
    • Further tuned pruning margins
  • Added singular extensions
    • Worth approximately 20 elo!
  • Bug Fixes
    • Fixed an SMP bug that would cause crashes when running more than one thread
    • Fixed another SMP bug that caused threads to not start properly
 Overall strength gain ~80 elo after 5000 games against 2.0a at 60"+0.05"



  1. I can't load Nirvana to Fritz. I don't know why ?

  2. Is any chance to compile Nirvana for Mac (OSX) ?
    Regards Dariusz