The Week in Chess

Sunday, April 21, 2013

Fire 2.2 xTreme x64 Defeated Firenzina 2.2.2 xTreme x64

In the 100 round gauntlet matches for the top x64 computer chess engines, Fire 2.2 xTreme by original author +Norman Schmidt  demolished Firenzina 2.2.2 xTreme by Dmitri Gusev with a score of 20 wins, 7 losses and 73 draws. It also placed high in the gauntlet ahead of Ivanhoe, Rybka, Saros, Robbolito, Komodo, etc.

It is interesting to note that Fire and Firenzina have almost exactly the same source code with the notable exception that the number of threads in Firenzina is double the physical quantity of CPU cores.  Both were compiled on the same Visual Studio C++ Compiler with the same build options.  The original distribution of Firenzina does not have a 64 bit version that worked in my computers, so it should be fair that both chess engines were re-compiled for match purposes.
 
Rank Engine ELO Games Score% Points Win Loss Draw
1 Houdini 3 Pro x64 123 100 70.50% 70.5 51 10 39
2 Stockfish 2.3.1 x64 59 100 61.00% 61.0 40 18 42
3 Robodini 1.1 x64 46 100 58.50% 58.5 37 20 43
4 Critter 1.6a x64 28 100 56.00% 56.0 29 17 54
5 Tactico Power 2011 x64 4 100 52.00% 52.0 20 16 64
6 LEOpard 0.7c x64 2 100 52.00% 52.0 21 17 62
7 Fire 2.2 xTreme x64 -8 1400 48.96% 685.5 287 316 797
8 Ivanhoe 46h x64 -13 100 49.00% 49.0 11 13 76
9 Rybka 4.1 x64 -16 100 48.50% 48.5 21 24 55
10 Saros 3.3b x64 -21 100 47.50% 47.5 18 23 59
11 RobboLito 0.10 x64 -21 100 47.50% 47.5 12 17 71
12 Komodo 5 x64 -25 100 47.00% 47.0 26 32 42
13 Strelka 5.5 x64 -35 100 45.00% 45.0 17 27 56
14 Firenzina 2.2.2 xTreme x64 -41 100 43.50% 43.5 7 20 73
15 Ippolit 0.080b3 x64 -82 100 36.50% 36.5 6 33 61
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Download the computer chess engines tournament games here.

2 comments:

  1. A predictable result: It is not beneficial to have more threads than CPUs. You can limit the number of threads by setting Max_Threads.

    ReplyDelete
    Replies
    1. Ok. I will match the threads with the number of CPU's using the Arena GUI, or I may revert the code that left shifted the value of the threads.

      Delete

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