UCI chess engine: Potential
Ahthor: Eren Araz Rating Chess Engines Diary CEDR=2942
Potential 3 what's new?
New Original Search Stuff
Post LMR History Reduction by @ProgramciDusunur in #323
New experiment successfull with one shot! Add Corrplexity Extension by @ProgramciDusunur in #363
TT was pv and fails high then do RFP by @ProgramciDusunur in #341
Search
Better Improving Decision by @ProgramciDusunur in #316
Add Node TM by @ProgramciDusunur in #321
Add LMR Depth To Quiet History Pruning by @ProgramciDusunur in #324
Add Promotion Move Ordering by @ProgramciDusunur in #336
Add 50 Move Rule by @ProgramciDusunur in #364
Add 50 Move Rule Scaling by @ProgramciDusunur in #366
Tweak lmr depth with move history by @ProgramciDusunur in #337
Add Major Correction History by @ProgramciDusunur in #338
Don't create major correction history key from scratch by @ProgramciDusunur in #339
Add Pawn History by @ProgramciDusunur in #351
Shrink Pawn History by @ProgramciDusunur in #352
Shrink histories to int16 by @ProgramciDusunur in #354
Do more correction history by @ProgramciDusunur in #356
Skip verification if null move score is much above beta by @ProgramciDusunur in #357
New experiment successfull with one shot! Add Corrplexity Extension by @ProgramciDusunur in #363
Late Move Reductions
Reduce The Minimum Number Of Moves That Must Be Searched For LMR by @ProgramciDusunur in #313
TT PV Fail Low LMR by @ProgramciDusunur in #322
Post LMR Shallower by @ProgramciDusunur in #329
Try More Cut Node LMR by @ProgramciDusunur in #330
if our tt was pv and we are improving then reduce less by @ProgramciDusunur in #367
Reduce even less if our current node is principle variation node by @ProgramciDusunur in #359
Add TT Capture LMR by @ProgramciDusunur in #361
Singular Extensions
Depth 6 Singular Extensions by @ProgramciDusunur in #312
Depth 5 Singular extensions by @ProgramciDusunur in #318
Cut Node Extension And Double Negative Extension Based Cut Node Prediction by @ProgramciDusunur in #314
Limit Singular Extensions by @ProgramciDusunur in #335
Tweak SE beta with a depth formula by @ProgramciDusunur in #325
Simplify Triple Negative Extension by @ProgramciDusunur in #348
Simplify Some Extension Conditions by @ProgramciDusunur in #340
Remove multicut by @ProgramciDusunur in #360
Reverse Futility Pruning
If TT was pv then don't RFP by @ProgramciDusunur in #320
TT was pv and fails high then do RFP by @ProgramciDusunur in #341
More Aggressive RFP by @ProgramciDusunur in #345
Depth 9 RFP by @ProgramciDusunur in #346
Depth 11 RFP by @ProgramciDusunur in #358
Add Corrplexity RFP by @ProgramciDusunur in #353
Tweak RFP tt was pv decision by @ProgramciDusunur in #349
Late Move Pruning
Add Improving in LMP by @ProgramciDusunur in #319
Transposition Table
New TT Replacement Scheme by @ProgramciDusunur in #326
A Tweak For TT Replacement by @ProgramciDusunur in #327
TT Replacement TT PV Tweak by @ProgramciDusunur in #328
Tweak TT Replacement with a offset by @ProgramciDusunur in #334
Evaluation
Pieces threat king territory by @ProgramciDusunur in #343
Add heavy king threats evaluation by @ProgramciDusunur in #344
Fix
A Few Adjustments And Cleaning by @ProgramciDusunur in #310
A Few Adjustments For Readability by @ProgramciDusunur in #311
fix build failing to compile due to missing libs by @ProgramciDusunur in #317
Fix Darwin problems by @ProgramciDusunur in #365
Potential 3 Strength
// 3.0.0 vs 2.0.0
Elo | 102.92 +- 10.39 (95%)
Conf | 8.0+0.08s Threads=1 Hash=32MB
Games | N: 2008 W: 776 L: 198 D: 1034
Penta | [10, 90, 361, 398, 145]
Elo | 130.94 +- 15.27 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 414 L: 54 D: 532
Penta | [2, 27, 181, 189, 101]
Elo | 179.90 +- 21.43 (95%)
Conf | 120.0+1.20s Threads=1 Hash=128MB
Games | N: 500 W: 255 L: 17 D: 228
Penta | [0, 5, 61, 125, 59]
// Potential 3.0.0 vs Stash 29
Elo | -92.57 +- 18.84 (95%)
Conf | 8.0+0.08s Threads=1 Hash=32MB
Games | N: 1018 W: 216 L: 481 D: 321
Penta | [118, 154, 140, 69, 28]
Elo | -10.43 +- 22.97 (95%)
Conf | 120.0+1.20s Threads=1 Hash=128MB
Games | N: 500 W: 144 L: 159 D: 197
Penta | [23, 61, 93, 54, 19]
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