New version chess engine: Puffin 3.0

Puffin - UCI chess Engine

Rating Chess Engines Diary CEDR=2695 (v.2.2)

v.3.0:

This is a smaller release that brings a small gain in playing strength.

A bug with detecting 3-fold repetition properly was hopefully fixed.

Added features:

late move pruning

internal iterative reduction

isolated pawn eval

draw detection for 50 moves and material draws

Self-play vs Puffin 2.0

Score of puffinnew vs puffinold: 237 - 122 - 288 [0.589] 647

... puffinnew playing White: 119 - 59 - 146 [0.593] 324

... puffinnew playing Black: 118 - 63 - 142 [0.585] 323

... White vs Black: 182 - 177 - 288 [0.504] 647

Elo difference: 62.4 +/- 20.0, LOS: 100.0 %, DrawRatio: 44.5 %

SPRT: llr 2.96 (100.6%), lbound -2.94, ubound 2.94 - H1 was accepted

Finished match

Bullet (10s+0.1) Gauntlet

# PLAYER : RATING ERROR POINTS PLAYED W D L D(%)

1 Nalwald 15 : 2912.0 ---- 465.0 600 418 94 88 16

2 Frozenight 3.0.0 : 2883.9 32.8 447.5 600 371 153 76 26

3 Leorik 2.4 : 2824.0 31.4 405.5 600 329 153 118 26

4 Halogen 8 : 2772.4 31.3 365.0 600 310 110 180 18

5 Apotheosis 4.0.1 : 2709.3 30.4 312.0 600 223 178 199 30

6 Peacekeeper 1.40 : 2695.8 30.9 300.5 600 235 131 234 22

7 Puffin 3.0 : 2695.3 23.4 2326.5 5400 1671 1311 2418 24

8 Princhess 0.12.0 : 2671.9 31.0 280.0 600 241 78 281 13

9 Lynx 1.3 : 2635.7 30.3 249.5 600 169 161 270 27

10 Puffin 2.0 : 2634.5 30.7 248.5 600 122 253 225 42

Puffin 2.0 - results:

Puffin 3.0 download

Chess Engines Diary