Stockfish 1.8 64-bit 1CPU Gauntlets (CCRL 40/40)

[Aser Huerga]

Stockfish 1.8 64-bit 1CPU Gauntlets


Hardware: Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz8x 3074 MHz with 4.096 MB Memory
Operating system: Microsoft Windows XP 64 Bit Professional Service Pack 2 (Build 3790)
All engines 1 CPU
Arena 2.0.1 GUI
128 Hash Tables
3-4-5 EGTBs
Ponder off
Book GrandPQRS-3moves (2.361 starting selected positions, from Norm Pollock collections), each pair plays the same position with switched colours.
40 moves in 23 minutes repeating (adapted to the CCRL 40/40 standard)

Gauntlet I:

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1   Stockfish 1.8 64-bit    -3128- 75.5/120
2   Rybka 4 64-bit           3179  14.5/24
3   Rybka 3 64-bit           3152  13.5/24
4   Hiarcs 13.1              2980  6.0/24
5   Onno 1.2.70 64-bit       2939  5.5/24
6   Deep Junior 11.2 64-bit  2936  5.0/24

(All ELOs referred to the last Chess Computer Rating List when tournament starts, except -XXXX- one, wich is referred to performance).

Statistics:

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Stockfish 1.8 64-bit          : 120 (+ 51,= 49,- 20), 62.9 %

Rybka 4 64-bit                :  24 (+  4,= 11,-  9), 39.6 %
Rybka 3 64-bit                :  24 (+  5,= 11,-  8), 43.8 %
Hiarcs 13.1                   :  24 (+ 12,= 12,-  0), 75.0 %
Onno 1.2.70 64-bit            :  24 (+ 14,=  9,-  1), 77.1 %
Deep Junior 11.2 64-bit       :  24 (+ 16,=  6,-  2), 79.2 %

(All statistic results are from the engine tested view).

Games: http://kirill-kryukov.com/chess/discuss ... f=7&t=5332

[Aser Huerga]

Stockfish keeps position 2 with the 1.8 64-bit version (now 3124 in CCRL 40/40 1CPU), showing an improvement of 4 ELO points regarding the 1.7.1 64-bit version, 60 ELO points behind Rybka and 26 ELO points ahead Naum.
http://computerchess.org.uk/ccrl/4040.l ... ons_only=1