TESTING STOCKFISH 7 BETA 2. 960 GAMES 480 Games at Fixed Time control

TESTING STOCKFISH 7 BETA 2. 960 GAMES
480 Games at Fixed Time control. Bench: 8355485

6 real cores
Ponder: Off.
GUI: Fritz 14
Book: Perfect 2014c – Limit 5 moves. Sedat –
No tablebases. No RTB used.
Hash 512
Relative Speed: 29.54
Knodes per second: 14.177

Time Control= 4+0
Stockfish 7Beta2 64 POPCNT_ - Komodo 9.3 64-bit_ST_NOB_x6 33.0 - 27.0 +14/=38/-8 55.00%
Stockfish 7Beta2 64 POPCNT_ - SugaR PrO v1.3 64 POPCNT_X6 29.5 - 30.5 +3/=53/-4 49.17%
Stockfish 7Beta2 64 POPCNT_ - Houdini 4 Pro x64_Ct0_X6 42.0 - 18.0 +27/=30/-3 70.00%
Stockfish 7Beta2 64 POPCNT_ - Gull 3 x64 XP_X6 43.5 - 16.5 +29/=29/-2 72.50%

Score after 240 games using 6 cores= 148.0 – 92.0 = 61.67%
240 Games = [You must be registered and logged in to see this link.]

8 real cores
Ponder: Off
GUI: Fritz 14
Book: Perfect 2014c – Limit 5 moves. Sedat –
No tablebases. No RTB used.
Hash 1024
Relative Speed: 53.22
Knodes per Second: 25.543

Time Control: 4+0
Stockfish 7Beta2 64 BMI2_8 - Komodo 9.3 64-bit_St_nob_X8 32.5 - 27.5 +13/=39/-8 54.17%
Stockfish 7Beta2 64 BMI2_8 - SugaR PrO v1.3 64 BMI2_X8 30.0 - 30.0 +4/=52/-4 50.00%
Stockfish 7Beta2 64 BMI2_8 - Houdini 4 Pro x64_Ct0_8 43.5 - 16.5 +29/=29/-2 72.50%
Stockfish 7Beta2 64 BMI2_8 - Gull 3 x64 XPx8 41.5 - 18.5 +26/=31/-3 69.17%

Score after 240 games using 8 cores= 147.5 – 92.5 = 61.46%
240 games: [You must be registered and logged in to see this link.]

GLOBAL SCORE FOR STOCKFISH 7 BETA2 AFTER 480 GAMES AT FIXED TIME CONTROL: 295.5 – 182.5 = 61.56%
AVERAGE ELO OF OPONENTS= 3.195
ESTIMATED ELO FOR SF DEVELOPMENT 221215= 3.276

Stockfish Beta 2 has permormed much better -12 Elo Points- than SF Beta 1 at fixed Time Control. Its score is very similar to that of Stockfish Development 221215 (3278).

Let’s test it at Incremental Time Control.


Tom Casanovas


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Actually, so far Beta 1  which is Stockfish Development 221215 and Beta 2 are about same strength  at fixed time control