Chess Engine: Slow Blitz Classic 2.2 (Jun 17, 2020)
Author: Jonathan Kreuzer (USA)
Rating Elo 2615 ComputerChess
Note released:
Version 2.2 (+100 elo)
- Fix bug where history update would try to decrease the score of wrong or invalid moves. This also increased search depths. (+55 elo)
- More evaluation tuning. Added some terms, removed some terms, and changed some logic. More work than it sounds. Also ran some more FRC training games. (+30 elo)
- syzygy Tablebase support. Is functional for playing games, but needs work to choose most reasonable move.
Various small search changes of which my elo measurement is mostly meaningless (+15 elo)
- Use SEE in for LMR Reduction of quiet piece moves
- History Extension
- Limit IID to PV or eval > alpha
- counter history shallow pruning increase active depth, and check scores are below k*d*d
- Adjust history delta amounts, max amount, and LMR history adjustment threshold
GUI : higher res pieces, all move / analysis shows as arrows now for clearer display
- Fix bug where history update would try to decrease the score of wrong or invalid moves. This also increased search depths. (+55 elo)
- More evaluation tuning. Added some terms, removed some terms, and changed some logic. More work than it sounds. Also ran some more FRC training games. (+30 elo)
- syzygy Tablebase support. Is functional for playing games, but needs work to choose most reasonable move.
Various small search changes of which my elo measurement is mostly meaningless (+15 elo)
- Use SEE in for LMR Reduction of quiet piece moves
- History Extension
- Limit IID to PV or eval > alpha
- counter history shallow pruning increase active depth, and check scores are below k*d*d
- Adjust history delta amounts, max amount, and LMR history adjustment threshold
GUI : higher res pieces, all move / analysis shows as arrows now for clearer display
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