Monday, May 21, 2018

Season 12 division 1 statistics

Draw rate, wins


Final draw rate was 58.0%.

Game termination

The three most common game termination causes were:
39.3% - TCEC win rule
33.9% - TCEC draw rule
12.5% - 3-Fold repetition

There was one game that ended in a crash.

Moves per game


Median= 59.5
Average= 70.1

There were 14 games with more than 100 moves.

Time per game (hours)


Median= 2:06
Average= 2:05


There was no change in the opening variants information, still not as detailed as in previous seasons.

There were 5-move book openings in this stage chosen by Cato. The first letter of the ECO codes was distributed as follows:


If we use the opening 'family name' (using format FAMILY_NAME: VARIANT....) the top 3 are:
Sicillian - 12 times
QGD, King's Indian, Sicillian defence - 8 times each
(the naming problem is evident here, the Sicillian openings are not all given the same name)

The engines had some freedom to choose the opening variant. In 87.5% of the game pairs the same ECO code was repeated, all of them repeated the same opening variant, another demonstration of the lack of detail in opening variants. In all of the game pairs the ECO first letter was repeated twice.

Reverse pairs, wins


Reverse pairs, same moves 


Pairs of reverse games diverged very quickly, 89.3% of the pairs diverged at most after 1 move. Remarkably there were no pairs that repeated more than 2 moves. 

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