Sunday, May 22, 2016

Season 9, stage 1a stats

Draw rate, wins
Game termination

The three most common game termination causes were:
64.2% - TCEC win rule
12.5% - TCEC draw rule
11.7% - TB position

There 2 losses on time and 3 crashes. Not bad for stage 1.

Moves per game

median = 59.75
average = 64.32

Time per game

median = 4:00
average = 3:57


Cato used 2-move openings for this stage, repeats were allowed but not for the same engine. Two moves direct the opening but usually allow a lot of freedom for development.

Using ECO codes there were 76 different openings played. The top 3 ECO codes were:
B22 6 times - Sicilian, Alapin's variation
D02 5 times - Queen's pawn game
B30 4 times - Sicillian Defense
D30 4 times - QGD

Using full opening name there were 112 different openings, so almost no repeated opening. No opening was repeated more than twice.

Using only the first letter of the ECO codes we get the following distribution:

I think this reflects Cato's choices more than the engines' choices, less open games and almost no Indian defenses.

If we use the opening 'family name' (using format FAMILY_NAME: VARIANT....) the top 3 are:
Sicillian - 23 times
Queen's Pawn - 10 times
Reti -  10 times

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