Tuesday, June 14, 2016

Season 9, stage 1b stats

Draw rate, wins

The results are almost identical to the 1a group.

Game termination

The three most common game termination causes were:
66.7% - TCEC win rule
13.3% - TCEC draw rule
9.2% - TB position

There were 3 crashes (and no losses on time), slightly better than for stage 1a. All in all stability was excellent.

Moves per game

median = 55.25
average = 63.9

Time per game

median = 3:41
average = 3:41

Games of group 1b were about 20 minutes shorter than in group 1a.


Using ECO codes there were 79 different openings played. The top ECO codes were:
B22 6 times - Sicilian, Alapin's variation
A28 3 times - English, four knights
A43 3 times - Old Benoni defence
A45 3 times - Queen's pawn game
B30 3 times - Sicillian Defense
B50 3 times - Sicillian
C01 3 times - French, exchange variation
D02 3 times - Queen's pawn game
D30 3 times - QGD

Using full opening name there were 114 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:

Compared to the 1a group, there were less Sicillians and closed games, and more open games and Indian defenses.

If we use the opening 'family name' (using format FAMILY_NAME: VARIANT....) the top 3 are:
Sicillian - 22 times
English - 16 times
QGD -  10 times

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