The Week in Chess

Tuesday, August 20, 2013

Gull 2.2 x64 - Gauntlet Matches, 100 Rounds

Gull 2.2 x64 by Vadim Demichev, is a UCI chess engine originally derived from Ivanhoe but has morphed into an engine that has no resemblance from its origins.

Gull 2.2 scored 52.03% with 584 wins, 503 losses and 913 draws earning 3094 ELO Rating points in the 100 rounds gauntlet matches against the strongest chess engines. It defeated higher ranked engines like Ryanfish 1, ComStock 3, drew with Robodini 1.1, Mars 1 and won the matches with the other 10 strong engines. With the impressive performance, it jumped from #15th rank to #6, gaining 39 ELO points increase.

The impressive performance of Gull 2.2 maybe gauged from the release notes:
    - Improved king safety evaluation.
    - Quadratic PST optimized with the use of automated tuning.
    - Several SMP bugs fixed.
    - Time management bug (pondering mode) fixed.



Rank Engine ELO Raw Games Score% Points Win Loss Draw Chg TF% Ply
1 Stockfish 130801 x64 3169 82 100 60.50 60.5 45 24 31 0 2.0 124
2 Houdini 3 Pro x64 3187 67 100 58.00 58.0 43 27 30 0 2.0 26
3 Critter 1.6a x64 3104 46 100 56.00 56.0 34 22 44 1 0.0 0
4 Komodo 5.1r2 x64 3099 21 100 51.50 51.5 30 27 43 1 3.0 74
5 Bouquet 1.7b x64 3082 17 100 51.00 51.0 27 25 48 0 3.0 117
6 Robodini 1.1 x64 3107 13 100 50.00 50.0 25 25 50 0 1.0 184
7 Mars 1 x64 3080 12 100 50.00 50.0 26 26 48 0 0.0 0
8 Gull 2.2 x64 3094 11 2000 52.03 1040.5 584 503 913 3094 1.7 77
9 Tactico Power 2011 x64 3044 6 100 49.00 49.0 25 27 48 1 4.0 127
10 Rybka 4.1 x64 3037 4 100 49.00 49.0 25 27 48 0 0.0 0
11 Gull 2.1 x64 3056 3 100 48.50 48.5 20 23 57 1 0.0 0
12 RobboLito 0.21Q x64 3066 0 100 48.00 48.0 19 23 58 0 2.0 56
13 Firenzina 2.3.1 xTreme x64 3072 -8 100 47.00 47.0 24 30 46 0 0.0 0
14 RyanFish 1 x64 3086 -12 100 46.00 46.0 23 31 46 -1 0.0 0
15 PanChess 00.537 x64 3070 -14 100 46.00 46.0 19 27 54 0 1.0 110
16 ComStock 3 x64 3082 -22 100 44.50 44.5 21 32 47 -1 1.0 109
17 Strelka 5.5 x64 3053 -23 100 44.00 44.0 20 32 48 0 1.0 49
18 Fire 2.2 xTreme x64 3070 -28 100 43.50 43.5 21 34 45 0 2.0 173
19 Ivanhoe 46h x64 3053 -46 100 41.00 41.0 19 37 44 0 8.0 120
20 LEOpard 0.7c x64 3044 -58 100 39.50 39.5 22 43 35 -1 5.0 118
21 Igorrit 0.086v9 x64 3073 -72 100 36.50 36.5 15 42 43 -2 0.0 0
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Download the computer chess engines tournament games here.

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