TESTING STOCKFISH DEVELOPMENT 280614

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Do you believe in coincidences? In my last post I mentioned that I had two co-leaders with a best Estimated Elo of 3283. So, please look at the Estimated Elo of SF Development 280614 at the end of this post.

Bench : 8095369 Timestamp: 1403978792

i7 980 3.33 Ghz.
6 real cores
Ponder: Off.
GUI: Fritz 12
Book: Perfect 2012c
No tablebases. No RTB used.
Hash 512
Relative Speed: 28.66
Knodes per second: 13.759

Time Control= 4+0

201406Stockfish_Dev_ 280614_4+0 2014

Stockfish 280614 64 SSE4.2_D - Houdini 4 x64_st_X6_CT0 25.5 - 14.5 +17/=17/-6 63.75%
Stockfish 280614 64 SSE4.2_D - Komodo 7 64-bitx6_NOB 23.5 - 16.5 +12/=23/-5 58.75%
Stockfish 280614 64 SSE4.2_D - Gull 3 x64 XP 25.0 - 15.0 +14/=22/-4 62.50%

Time Control= 2+2

201406Stockfish_Dev_ 280614_2+2 2014

Stockfish 280614 64 SSE4.2_D - Houdini 4 x64_st_X6_CT0 22.0 - 18.0 +7/=30/-3 55.00%
Stockfish 280614 64 SSE4.2_D - Komodo 7 64-bitx6_NOB 25.0 - 15.0 +13/=24/-3 62.50%
Stockfish 280614 64 SSE4.2_D - Gull 3 x64 XP 26.0 - 14.0 +15/=22/-3 65.00%

Score using 6 cores: 147.0 – 93.0 = 61.25%
240 Games:
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i7 975 3.33 Ghz.
4 real cores
Ponder: Off.
GUI: Fritz 12
Book: Perfect 2012c
No tablebases. No RTB used.
Hash 256
Relative Speed: 20.62
Knodes per second: 9.899

Time Control: 4+0

Stockfish 280614 64 SSE4.2_D - Houdini 4 Pro x64-A_OK 23.0 - 17.0 +10/=26/-4 57.50%
Stockfish 280614 64 SSE4.2_D - Komodo 7 64-bitx4_NOB 23.5 - 16.5 +13/=21/-6 58.75%
Stockfish 280614 64 SSE4.2_D - Gull 3 x64 XP 22.0 - 18.0 +10/=24/-6 55.00%
Time Control: 2+2

Stockfish 280614 64 SSE4.2_D - Houdini 4 Pro x64-A_OK 22.5 - 17.5 +10/=25/-5 56.25%
Stockfish 280614 64 SSE4.2_D - Komodo 7 64-bitx4_NOB 25.0 - 15.0 +13/=24/-3 62.50%
Stockfish 280614 64 SSE4.2_D - Gull 3 x64 XP 26.5 - 13.5 +15/=23/-2 66.25%

Score using 4 Cores= 142.5 – 97.5 = 59.27%
240 Games:
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Segmenting by Time Control:

Fixed TC = 142.5 – 97.5 = 59.27%
Incremental TC = 147.0 – 93.0= 61.25%

Global Score= 289.5 – 190.5 = 60.31%

Against : Houdini 4.0 St. Ct0 (3227) = 58.12% ; Komodo 7 (3206) =60.62%, Gull 3 XP (3199) = 62.19%

Average Estimated Elo Opponents = 3211
Estimated Elo Performance= 3283

Error bars= +/- 23 EEP

I am testing now the second leg of this SF Development. Games 481 to 960. Let's wait the results.

Regards,
Tom Casanovas

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TESTING STOCKFISH DEVELOPMENT 280614 = GAMES 481 to 960

Bench : 8095369 Timestamp: 1403978792

i7 980 3.33 Ghz.
6 real cores
Ponder: Off.
GUI: Fritz 12
Book: Perfect 2012c
No tablebases. No RTB used.
Hash 512
Relative Speed: 28.66
Knodes per second: 13.759

Time Control= 4+0

Stockfish 280614 64 SSE4.2_D - Houdini 4 x64_st_X6_CT0 22.5 - 17.5 +9/=27/-4 56.25%
Stockfish 280614 64 SSE4.2_D - Komodo 7 64-bitx6_NOB 26.0 - 14.0 +14/=24/-2 65.00%
Stockfish 280614 64 SSE4.2_D - Gull 3 x64 XP 24.5 - 15.5 +12/=25/-3 61.25%

Time Control= 2+2

Stockfish 280614 64 SSE4.2_D - Houdini 4 x64_st_X6_CT0 25.0 - 15.0 +15/=20/-5 62.50%
Stockfish 280614 64 SSE4.2_D - Komodo 7 64-bitx6_NOB 23.5 - 16.5 +11/=25/-4 58.75%
Stockfish 280614 64 SSE4.2_D - Gull 3 x64 XP 27.0 - 13.0 +15/=24/-1 67.50%

Score using 6 cores: 148.5 – 91.5 = 61.87%
240 Games:
[You must be registered and logged in to see this link.]

i7 975 3.33 Ghz.
4 real cores
Ponder: Off.
GUI: Fritz 12
Book: Perfect 2012c
No tablebases. No RTB used.
Hash 256
Relative Speed: 20.62
Knodes per second: 9.899

Time Control: 4+0

Stockfish 280614 64 SSE4.2_D - Houdini 4 Pro x64-A_OK 24.0 - 16.0 +13/=22/-5 60.00%
Stockfish 280614 64 SSE4.2_D - Komodo 7 64-bitx4_NOB 25.0 - 15.0 +13/=24/-3 62.50%
Stockfish 280614 64 SSE4.2_D - Gull 3 x64 XP 21.5 - 18.5 +11/=21/-8 53.75%

Time Control: 2+2

Stockfish 280614 64 SSE4.2_D - Houdini 4 Pro x64-A_OK 24.0 - 16.0 +14/=20/-6 60.00%
Stockfish 280614 64 SSE4.2_D - Komodo 7 64-bitx4_NOB 26.0 - 14.0 +16/=20/-4 65.00%
Stockfish 280614 64 SSE4.2_D - Gull 3 x64 XP 25.5 - 14.5 +16/=19/-5 63.75%

Score using 4 Cores= 146.0 – 94.0 = 60.83%
240 Games:
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Segmenting by Time Control:

Fixed TC = 143.5 – 96.5 = 59.79%
Incremental TC = 151.0 – 89.0 = 62.92%

Global Score= 294.5 – 185.5 = 61.35%

Against : Houdini 4.0 St. Ct0 (3227) = 59.69% ; Komodo 7 (3206) =62.81%, Gull 3 XP (3199) = 61.56%

Average Estimated Elo Opponents = 3211
Estimated Elo Performance= 3290

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Results of the first leg of this test:

Global Score= 289.5 – 190.5 = 60.31%

Against : Houdini 4.0 St. Ct0 (3227) = 58.12% ; Komodo 7 (3206) =60.62%, Gull 3 XP (3199) = 62.19%


Global score after 960 games - Error bars= +/- 16 EEP

Global Score: 584.0 – 376.0 = 60.83%

Average Elo Opponents = 3211
Estimated Elo Performance = 3287

This is a new best score ever in my tests.

For the first time in many months a Stockfish Development engine leads my tests. 60 Elo points above the great Houdini 4.0. Not so long ago the leader was Deep Rybka 4.1. This SF Development is about 272 Elo points above this very strong engine. Amazing!. The first places in my tests right now -only main engines- are:

Stockfish 280614 Development = 3287
Stockfish 090614 IPMAN = 3283
Stockfish RockWood 190514 = 3283
Stockfish 5 = 3272
Houdini 4.0 = 3227
Komodo 7 = 3206
Gull 3 XP = 3199
Critter 1.6a = 3104
Deep Rybka 4.1 = 3015

My congratulations again and again to Marco and the Stockfish team. Great work, guys!. Best regards,