Wednesday, October 14, 2015

Nirvanachess 2.2 Release

What is new in this release?

  •  Tuning with Texel's tuning method
    • Improved mobility evaluation
    • Improved Passed Pawns evaluation
    • Improved Shelter and Storming pawns evaluation
    •  
  •  SPSA tuning
    • Tuned LMP
    • Tuned LMR
  • Speed ups
    • Improved move generation speed by approximately 10%
  • New Features
    • Now accepts the "movetime" command
    • Now able to handle more than 16 gb of hash
  • Bug Fixes
    • Fixed a crash that could have occurred during late game ends
    • Fixed a crash with SMP
    • Fixed node counting during SMP
    • SMP now scales well beyond 4 cores.
 Overall strength gain ~50 elo after 5000 games against 2.1c at 60"+0.05"

Download:
http://www.mediafire.com/download/hc0g330h79urej0/Nirvanachess+2.2.rar

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"

Download:
http://www.mediafire.com/download/8hslhtv0h42phbj/Nirvanachess_2.1c.rar