The Week in Chess

Wednesday, December 11, 2013

Houdini 4 Pro x64 - Gauntlet Matches, 100 Rounds.

Houdini 4 Pro x64 is a UCI chess engine by +Robert Houdart released last November 25, 2013. It was a contestant at the TCEC Live Tournament, 2nd Season 2013 and finished number 3 behind Komodo TCEC and Stockfish DD.

Houdini scored 65.6% with 942 wins, 318 losses and 740 draws against the top 20 strongest chess engines.  It earned 3192 ELO rating points and number 2 rank in the Top 100 Chess Engines Rating List.

The website of Houdini stated that it is about 50 ELO stronger than the previous version, Houdini 3 (ELO=3178) .  With simple arithmetic it should roughly translate to 3228 ELO which is 13 points better than the number 1 Stockfish DD. But the fact is: it was defeated by Stockfish DD and Komodo TCEC during the TCEC-Live Tournament at long time controls and best hardware platform for chess engines competition. Houdini 4 was also demolished by Stockfish DD in this rating list site with a score of 64.5-35.5 at blitz time control of 1 minute + 1 seconds increment, where Houdini supposedly rules.
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Rank Engine ELO Raw Games Score% Points Win Loss Draw Chg TF% Ply
1 Stockfish DD x64 3215 198 100 64.50 64.5 50 21 29 4 3.00 99
2 Houdini 4 Pro x64 3192 97 2000 65.60 1312.0 942 318 740 3192 1.15 87
3 Komodo 6 x64 3139 81 100 47.00 47.0 25 31 44 2 0.00 0
4 Gull R600 x64 3114 74 100 46.50 46.5 30 37 33 3 1.00 4
5 Critter 1.6a x64 3100 50 100 42.50 42.5 23 38 39 1 1.00 146
6 Rybka 4.1 x64 3033 36 100 40.50 40.5 23 42 35 2 3.00 107
7 Robodini 1.1 x64 3101 10 100 36.00 36.0 15 43 42 0 3.00 103
8 ComStock 3 x64 3077 2 100 35.50 35.5 18 47 35 0 3.00 132
9 Firenzina 2.3.1 xTreme x64 3063 -9 100 32.50 32.5 9 44 47 0 0.00 0
10 Mars 1 x64 3069 -11 100 32.50 32.5 10 45 45 0 0.00 0
11 PanChess 00.537 x64 3059 -12 100 32.50 32.5 12 47 41 0 0.00 0
12 Samsung x64 3119 -12 100 33.00 33.0 13 47 40 -2 2.00 33
13 RyanFish 1 x64 3076 -13 100 33.50 33.5 17 50 33 0 2.00 76
14 Bouquet 1.8 x64 3077 -23 100 30.50 30.5 9 48 43 -1 2.00 55
15 Fire 2.2 xTreme x64 3059 -40 100 29.00 29.0 11 53 36 -1 0.00 0
16 Strelka 5.7 x64 3098 -41 100 29.00 29.0 11 53 36 -2 2.00 79
17 Ivanhoe 46h x64 3043 -43 100 28.00 28.0 8 52 40 0 2.00 75
18 Tactico Power 2011 x64 3036 -56 100 27.50 27.5 12 57 31 -1 0.00 0
19 RobboLito 0.21Q x64 3054 -71 100 24.50 24.5 6 57 37 -1 1.00 5
20 Igorrit 0.086v9 x64 3055 -95 100 21.50 21.5 4 61 35 -1 2.00 10
21 LEOpard 0.7c x64 3034 -121 100 21.50 21.5 12 69 19 -1 2.00 168
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Download the computer chess engines tournament games here.

Note:  TF% = Time forfeit percentage
          Ply = Average moves of games lost by time forfeit 

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