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



Chess engines: Polaris 1.8.1

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Polaris is a UCI chess engine, a full rewrite of its predecessor (my first attempt at a chess engine, also named Polaris).

Rating CEDR=2890

v.1.8.1:
Release republished due to outdated tag (again) (I am stupid)

This release fixes some strange behaviour regarding how tablebase scores are reported, and adds some additional safeguards to win/loss score handling in aspiration windows. Additionally, compilation should no longer spit out warnings from Fathom.

No strength difference exists from 1.8.0 :)

Individual statistics: Polaris 1.4.1 - 142 games (+ 25,= 23,- 94), 25.7 %
Critter 1.6a                  :   4 (+  0,=  0,-  4),  0.0 %
Rebel 16.2                    :   2 (+  0,=  0,-  2),  0.0 %
Leorik 2.4                    :   2 (+  1,=  0,-  1), 50.0 %
Peacekeeper 1.3               :   2 (+  2,=  0,-  0), 100.0 %
Viridithas 8.1.0              :   2 (+  0,=  0,-  2),  0.0 %
Eman 8.90                     :   2 (+  0,=  0,-  2),  0.0 %
CfishNN 20230329              :   2 (+  0,=  0,-  2),  0.0 %
Deep Blue 230329              :   2 (+  0,=  0,-  2),  0.0 %
CorChess 20230401             :   2 (+  0,=  0,-  2),  0.0 %
Arasan 23.5                   :   8 (+  0,=  0,-  8),  0.0 %
Knightx 3.7b                  :   8 (+  1,=  4,-  3), 37.5 %
Mayhem 8.1                    :   8 (+  2,=  2,-  4), 37.5 %
Lc0 0.30.0-dev+git.9a205320   :   2 (+  0,=  0,-  2),  0.0 %
Polyfish 20230402             :   2 (+  0,=  0,-  2),  0.0 %
Svart 3                       :   2 (+  0,=  0,-  2),  0.0 %
Tenax 0.7.7                   :   8 (+  0,=  0,-  8),  0.0 %
Altair 2.0.0                  :   8 (+  1,=  1,-  6), 18.8 %
BrainLearn 23.1               :   4 (+  0,=  0,-  4),  0.0 %
Jangine 2023-03-31            :   6 (+  6,=  0,-  0), 100.0 %
Midnight 5.0                  :   6 (+  0,=  3,-  3), 25.0 %
MrBob 1.2.0                   :   6 (+  0,=  1,-  5),  8.3 %
Polyfish 20230410             :   4 (+  0,=  0,-  4),  0.0 %
Renegade 0.10.0               :   6 (+  3,=  2,-  1), 66.7 %
RubiChess 20230410            :   6 (+  0,=  0,-  6),  0.0 %
AI 28.0                       :   4 (+  0,=  0,-  4),  0.0 %
ShashChess 31.1               :   4 (+  0,=  0,-  4),  0.0 %
Zangdar 2.14.06               :   6 (+  3,=  3,-  0), 75.0 %
Svart 3.1                     :   6 (+  0,=  3,-  3), 25.0 %
Willow 2.7                    :   6 (+  2,=  3,-  1), 58.3 %
Akimbo 0.2.0                  :   6 (+  4,=  1,-  1), 75.0 %
Clover 4.0                    :   4 (+  0,=  0,-  4),  0.0 %
Corchess 20230410             :   2 (+  0,=  0,-  2),  0.0 %

Polaris 1.8.1 download

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