Stockfish1.4 & Stockfish1.51

[Adam Hair]

A comparison of Stockfish1.51 & 1.4

4'3" time control
Intel E8400 Dual Core
Windows XP x64
Arena 2.01
128 MB hash
HS Main Book 7 moves
Ponder Off
3-4 man tablebases & bitbases

Code: Select all

Stockfish_151_x64(2CPU)   :  861 (+528,=243,- 90), 75.4 %

Rybka v2.2n2x64(2CPU)         :  72 (+ 23,= 35,- 14), 56.2 %
Thinker54d Inertx64(2CPU)     :  72 (+ 26,= 30,- 16), 56.9 %
Toga141se-2cpu                :  72 (+ 33,= 27,- 12), 64.6 %
Alaric707                     :  53 (+ 39,= 12,-  2), 84.9 %
Bright-0.4a3(2CPU)            :  54 (+ 33,= 16,-  5), 75.9 %
Booot415                      :  54 (+ 42,= 10,-  2), 87.0 %
Crafty_230_x64_ja(2CPU)       :  54 (+ 38,= 13,-  3), 82.4 %
Delfi 5.4 (2CPU)              :  54 (+ 37,= 15,-  2), 82.4 %
Fruit23-EM64T                 :  54 (+ 35,= 15,-  4), 78.7 %
Frenzee_Feb08_x64             :  54 (+ 40,=  8,-  6), 81.5 %
Naum2.0_x64                   :  54 (+ 36,= 15,-  3), 80.6 %
Scorpio_21_x64_ja(2cpu)       :  53 (+ 39,=  8,-  6), 81.1 %
Spike1.2 Turin                :  54 (+ 38,= 11,-  5), 80.6 %
TwistedLogic20080620          :  54 (+ 45,=  8,-  1), 90.7 %
Rybkav2.3.2a.w32              :  53 (+ 24,= 20,-  9), 64.2 %

Code: Select all

Stockfish_14_x64_ja(2CPU) : 862 (+464,=274,-124), 69.7 %

Rybka v2.2n2x64(2CPU)         :  72 (+ 18,= 31,- 23), 46.5 %
Thinker54d Inertx64(2CPU)     :  72 (+ 15,= 37,- 20), 46.5 %
Toga141se-2cpu                :  72 (+ 24,= 29,- 19), 53.5 %
Alaric707                     :  53 (+ 44,=  8,-  1), 90.6 %
Bright-0.4a3(2CPU)            :  54 (+ 21,= 22,- 11), 59.3 %
Booot415                      :  54 (+ 40,= 11,-  3), 84.3 %
Crafty_230_x64_ja(2CPU)       :  54 (+ 30,= 18,-  6), 72.2 %
Delfi 5.4 (2CPU)              :  54 (+ 34,= 13,-  7), 75.0 %
Fruit23-EM64T                 :  54 (+ 30,= 16,-  8), 70.4 %
Frenzee_Feb08_x64             :  54 (+ 42,= 10,-  2), 87.0 %
Naum2.0_x64                   :  54 (+ 29,= 22,-  3), 74.1 %
Scorpio_21_x64_ja(2cpu)       :  54 (+ 45,=  7,-  2), 89.8 %
Spike1.2 Turin                :  53 (+ 36,= 11,-  6), 78.3 %
TwistedLogic20080620          :  54 (+ 40,= 14,-  0), 87.0 %
Rybkav2.3.2a.w32              :  54 (+ 16,= 25,- 13), 52.8 %

http://www.mediafire.com/?sharekey=2771 ... f6e8ebb871

Next comparison will be Twisted Logic 20080620 & 20090922

Please feel free to tell me if I need to do anything differently.

[jpqy]

Hi Adam,

I find you did this perfect..i like these comparions!
Do you also check the games and corect the result if nessecary?!

Kind regards,
Jean-Paul.

[George Tsavdaris]

A comparison of Stockfish1.51 & 1.4

Nice! Thanks for this.

[Adam Hair]

Hi Adam,

I find you did this perfect..i like these comparions!
Do you also check the games and corect the result if nessecary?!

Kind regards,
Jean-Paul.

Thanks Jean-Paul. I check all games that do not end normally,
normal meaning any game that ends with checkmate, resignation,
draw, or stalemate. Any time forfeit I adjucate to the best of my
ability. I also check all games that end in under 40 moves, and
I did throw out 2 games that ended with a threefold repetion in
less than 20 moves. Finally, I removed one game that both engines
scored the the position, when coming out of book, +5 centipawns
for white.

[Adam Hair]

A comparison of Stockfish1.51 & 1.4

Nice! Thanks for this.

You are welcome George.

[jpqy]

Thanks Adam!

That's the way i also almost do..great work and enjoy the games!

JP.