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@bdmendes bdmendes released this 18 Sep 21:49
· 236 commits to master since this release
v1.2.0
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Learn about vigilant mode.

This release introduces several new techniques to improve search and evaluation, ready to be tuned in the future.

Changelog

  • Use aspiration windows centred at the last iteration score to tighten the search bounds
  • Generate moves by stages
  • Incentivize the advancement of passed pawns
  • Penalize broken pawn shelter around the king
  • Incentivize pieces to attack the opponent king ("king tropism")
  • Generate all check evasions in quiescence search if in check

Estimated Strength

  • Lichess: 2100 (Bullet), 2150 (Blitz), 2217 (Rapid)
  • CCRL: 2037 (Blitz)
  • Compared to the previous version: ✅ Elo difference: 57.25 +/- 22.18
Assets 2
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