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============================== My email: jotes@go2.pl



Chess engine: Pedantic 2.1.0

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Pedantic - UCI engines Author: JoAnn D. Peeler
Rating Chess Engines Diary CEDR=3123

v.2.1.0:
This release of Pedantic changes the architecture of the NNUE network from (768 -> 128) x 2 -> 1 to (768 -> 384) x 2 -> 1. It was built up in stages from 160, 192, 256 to 384 hidden layers with each step generating new training data for the next net. The final net was trained with 1.9 billion positions. Additionally, the inference was changed from using CReLu to SCReLu activation. Although in my last release I stated that I would endeavor to add HCE back into the engine, I have decided to abandon this as I will probably be ramping down my chess programming activities over the next several months.

Playing strength improvements:
AMD Ryzen 9 7945hx ♦ 256mb Hash Table ♦ 3-6 Man Syzygy ♦ Concurrency 24 ♦ 8moves_v3.pgn

+119.0 +/- 6.9 Elo over Pedantic 2.0.0 in self-play at 20+0.2 time controls.
+92.0 +/- 10.2 Elo over Pedantic 2.0.0 in self-play at 2:00+1 time controls.
+61.8 +/- 14.5 Elo over Pedantic 2.0.0 in self-play at 12:00+8 time controls.

20+0.2 Self-Play Results
Score of Pedantic 2.1.0 vs Pedantic 2.0.0: 1826 - 342 - 2332 [0.665] 4500
... Pedantic 2.1.0 playing White: 1031 - 123 - 1096 [0.702] 2250
... Pedantic 2.1.0 playing Black: 795 - 219 - 1236 [0.628] 2250
... White vs Black: 1250 - 918 - 2332 [0.537] 4500
Elo difference: 119.0 +/- 6.9, LOS: 100.0 %, DrawRatio: 51.8 %
SPRT: llr 0 (0.0%), lbound -inf, ubound inf

120+1 Self-Play Results
Score of Pedantic 2.1.0 vs Pedantic 2.0.0: 464 - 76 - 960 [0.629] 1500
... Pedantic 2.1.0 playing White: 278 - 30 - 442 [0.665] 750
... Pedantic 2.1.0 playing Black: 186 - 46 - 518 [0.593] 750
... White vs Black: 324 - 216 - 960 [0.536] 1500
Elo difference: 92.0 +/- 10.2, LOS: 100.0 %, DrawRatio: 64.0 %
SPRT: llr 0 (0.0%), lbound -inf, ubound inf

12:00+8 Self-Play Results
Score of Pedantic 2.1.0 vs Pedantic 2.0.0: 105 - 17 - 378 [0.588] 500
... Pedantic 2.1.0 playing White: 61 - 7 - 182 [0.608] 250
... Pedantic 2.1.0 playing Black: 44 - 10 - 196 [0.568] 250
... White vs Black: 71 - 51 - 378 [0.520] 500
Elo difference: 61.8 +/- 14.5, LOS: 100.0 %, DrawRatio: 75.6 %
SPRT: llr 0 (0.0%), lbound -inf, ubound inf

Pedantic 2.0.0 - results:
OpponentScore+-Games
RubiChess 202408174.5/16-716 Games
Protej 0.6.713/13+1313 Games
Sloth 2.010/10+1010 Games
Simbelmyne 1.10.06/10+210 Games
Molybdenum 4.04.5/10-110 Games
Critter 1.6a4/10-210 Games
Mufasa 0.2.1 JA9/9+99 Games
Euwe 1.2.16/6+66 Games
DeepBlunder 1.2.06/6+66 Games
HypnoS legacy 1808241.5/6-36 Games
YuliGM STRONG 1808241.5/6-36 Games
Stockfish 202408201/6-46 Games
Rems 1508241/6-46 Games
Steel Fighter III1/6-46 Games
Lc0 0.31.10.5/6-56 Games
Pioneer 0.3.24/4+44 Games

Pedantic 2.1.0 download


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