Pedantic - UCI engines
Rating CEDR=3124
v.1.0.0:
Playing strength improvements:
AMD Ryzen 7 5800h ♦ 256mb Hash Table ♦ 3-6 Man Syzygy ♦ Concurrency 14 ♦ openings-10ply-100k.pgn
+91 +/-12 Elo over Pedantic 0.6.2 in self-play at 20+0.2 time controls.
+115 +/-12 Elo over Pedantic 0.6.0 in self-play at 20+0.2 time controls.
Self-Play Results
Rank Name Elo +/- Games Wins Losses Draws Points Score Draw
0 Pedantic 1.0.0 103 8 4000 1761 609 1630 2576.0 64.4% 40.8%
1 Pedantic 0.6.2 -91 12 2000 325 836 839 744.5 37.2% 41.9%
2 Pedantic 0.6.0 -115 12 2000 284 925 791 679.5 34.0% 39.6%
What's Changed
Add null move pruning. + 64 by @JoAnnP38 in #1
Add LMR. +61 Elo by @JoAnnP38 in #2
Reverse futility pruning. +8 Elo by @JoAnnP38 in #3
Add quiet history w/gravity. +90 Elo by @JoAnnP38 in #4
Add tempo bonus to evaluation. +73 Elo by @JoAnnP38 in #5
Add mobility evaluation. +52 Elo by @JoAnnP38 in #6
Add passed pawn evaluation. +27 elo by @JoAnnP38 in #7
Evaluate adjacent/phalanx pawns. +20 Elo by @JoAnnP38 in #8
Add chained pawn evaluation. +27 Elo by @JoAnnP38 in #9
Add pawn ram evaluation. +8 Elo by @JoAnnP38 in #10
Add isolated pawn evaluation. +7 Elo by @JoAnnP38 in #11
Extended isolated pawn evaluation to use PST scores instead of file-b… by @JoAnnP38 in #12
Add pawn structure hash table. +18 Elo by @JoAnnP38 in #13
Add late move pruning to search. +75 Elo by @JoAnnP38 in #14
Add counter move support to history. +10 elo by @JoAnnP38 in #15
Add king attack bonus to eval. +20 elo by @JoAnnP38 in #16
Give bonus for valuing castling rights. +11 elo by @JoAnnP38 in #17
Enemy king outside passed pawn promotion square. +3 elo by @JoAnnP38 in #18
It is safe for passer to advance. +5 elo by @JoAnnP38 in #19
Piece blocks enemy passed pawn from advancing. +4 elo by @JoAnnP38 in #20
Bug fix that broke passed pawn tuning. +14 elo by @JoAnnP38 in #21
Use SEE for capture move classification. +29 elo by @JoAnnP38 in #22
Prune bad captures from QSearch. +22 elo by @JoAnnP38 in #23
Add bishop pair evaluation. +7 elo by @JoAnnP38 in #24
Evaluate bad bishops and pawns. +4 elo by @JoAnnP38 in #25
Evaluate rooks on open files. +12 elo by @JoAnnP38 in #26
Evaluate rooks on half-open files. +3 elo by @JoAnnP38 in #27
Change tt depth type from byte to sbyte. +216 elo by @JoAnnP38 in #28
Add futility pruning to main search. +93 elo by @JoAnnP38 in #29
Internal iterative reduction (IIR) +11 elo by @JoAnnP38 in #30
See pruning +13 elo by @JoAnnP38 in #31
Syzygy tablebase probing at the root. +16 elo by @JoAnnP38 in #32
Syzygy probing during search. +36 elo by @JoAnnP38 in #33
Pawn push threat evaluation. +22 elo by @JoAnnP38 in #34
Evaluate opponent pieces threaten by our pawns. +5 elo by @JoAnnP38 in #35
Change the manner that attacks are cached in evaluation. +4 elo by @JoAnnP38 in #36
Evaluate threats by minor pieces. +9 elo by @JoAnnP38 in #37
Evaluate threats by rooks. +8 elo by @JoAnnP38 in #38
Give PV move a bonus to ensure poll position. +57 elo by @JoAnnP38 in #39
Evaluate rooks behind passed pawn. +7 elo by @JoAnnP38 in #40
Only calculate full eval if required. +21 elo by @JoAnnP38 in #41
Razoring at frontier node. +32 elo by @JoAnnP38 in #42
Refactor razoring to use parameters from UciOptions by @JoAnnP38 in #43
Continuation history at ply - 1 +17 elo by @JoAnnP38 in #44
Continuation history at ply - 2 +4 elo by @JoAnnP38 in #45
Correct bug with memory corruption (indexoutofrange exception). by @JoAnnP38 in #46
Replace various (Moves, QMoves, Evasion) enumerators with specialized… by @JoAnnP38 in #47
Apply improving heuristic to NMP. +25 elo by @JoAnnP38 in #48
Apply improving heuristic to RFP. +14 elo by @JoAnnP38 in #49
Use eval cache to avoid re-evaluating positions. +10 elo by @JoAnnP38 in #50
Scale eval as game approaches draw by 50mr. +5 elo STC / +10 elo MTC by @JoAnnP38 in #51
Integrate endgame scaling into tuner and retune weights. +6 elo by @JoAnnP38 in #52
Evaluate backward pawns. +6 elo by @JoAnnP38 in #53
1st round of weather-factory optimization. +37 elo by @JoAnnP38 in #54
Make sure Pedantic always has a legal move to return. by @JoAnnP38 in #55
Remove illegal moves from root move list. by @JoAnnP38 in #56
Add additional information to abort logging. by @JoAnnP38 in #57
Evaluate check threats. +10 elo by @JoAnnP38 in #58
Do not prune if need to escape potential mate. +2 elo by @JoAnnP38 in #59
Update mobility evaluation to take into account pieces pinned against their king. +11 elo by @JoAnnP38 in #60
Give bonus to pawns shielding minor pieces. +9 elo by @JoAnnP38 in #61
Revise PVS and reduce checking moves. +21 elo by @JoAnnP38 in #62
If not improving increase lmr reduction. +6 elo by @JoAnnP38 in #63
Simple check extension. +7 elo by @JoAnnP38 in #64
Decrease lmr reductions for pv nodes +10 elo by @JoAnnP38 in #65
Adjust lmr reductions based on current move's history. +10 elo by @JoAnnP38 in #66
Add continuation history at ply - 4. +8 elo by @JoAnnP38 in #67
Don't trust mate scores returned in NMP. +3 elo by @JoAnnP38 in #68
Return mate scores from quiesce search. +19 elo by @JoAnnP38 in #69
Improve QSearch (increase full capture depth from 6 to 8) +6 elo by @JoAnnP38 in #70
Scale reported uci cp score based on 100 per pawn. +0 elo by @JoAnnP38 in #71
Count xray attacks for bishops/rooks for mobility. +4 elo by @JoAnnP38 in #72
Test latest weather-factory optimization. +10 elo by @JoAnnP38 in #73
Increase training data size 6M => 16M. +12 elo by @JoAnnP38 in #74
Remove !checkingMove from prune guard. +9 elo by @JoAnnP38 in #75
Evaluate bishop on long diagonal. +3 elo by @JoAnnP38 in #76
Evaluate king on pawnless flank. +6 elo by @JoAnnP38 in #77
Generate evasion moves when in check inside Quiescence search. +12 elo by @JoAnnP38 in #78
Uci parameters by @JoAnnP38 in #79
Add file headers with copyright & license info. by @JoAnnP38 in #80
Update readme.md for first release from new repo. by @JoAnnP38 in #81
Pedantic 0.6.2 - results:
| Midnight 9 | 1/13 | -11 | 13 Games |
| Minic 3.41 | 1/10 | -8 | 10 Games |
| Pawn 3.0 | 0.5/10 | -9 | 10 Games |
| Fatalii 0.6.0 | 8/8 | +8 | 8 Games |
| Dragonrose 0.24 | 6/6 | +6 | 6 Games |
| Akimbo 0.8.0 | 1/6 | -4 | 6 Games |
| Uralochka 3.41 dev1 | 0.5/6 | -5 | 6 Games |
| Texel 1.11 | 0.5/6 | -5 | 6 Games |
| Lizard 10.1 | 0/6 | -6 | 6 Games |
| Caissa 1.16 | 0/6 | -6 | 6 Games |
| Sloth 1.6 | 5/5 | +5 | 5 Games |
| Starzix 4.0 | 2.5/5 | +0 | 5 Games |
| Cheng 4.44 | 1/5 | -3 | 5 Games |
| Shuffle 5.0.0 | 4/4 | +4 | 4 Games |
| TDFA 1.0.0 | 4/4 | +4 | 4 Games |
| Catto 0.3.0 | 4/4 | +4 | 4 Games |
| Bagatur 4.1 | 2.5/4 | +1 | 4 Games |
| Counter 5.5 | 1.5/4 | -1 | 4 Games |
| Arasan 24.1 | 0/4 | -4 | 4 Games |
| Obsidian 10.0 | 0/4 | -4 | 4 Games |
| Polyfish 240114 | 0/4 | -4 | 4 Games |
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