Showing posts with label blitz. Show all posts
Showing posts with label blitz. Show all posts

Monday, January 1, 2018

Season 10, blitz tournament statistics

Draw rate, wins



Final draw rate was 31%.

Game termination

The three most common game termination causes were:
38.4% - White mates
29.0% - Black mates
18.8% - 3-fold repetition

These are very unusual, due to the fact that there was no adjudication by tablebases or by score in the blitz tournament.

There were only 9 crashes.

Moves per game



Median= 75.5
Average= 80.5

No adjudication caused the games to be longer than usual. There were 55 games (10%) with more than 120 moves.

Time per game (hours)

  

Median= 0:10:04
Average= 0:10:14

Openings

There were 2-move book openings in this stage chosen by Cato. The first letter of the ECO codes was distributed as follows:



Open games (C) and indian openings (E) were under-represented, very similar to the rapid stage.

If we use the opening 'family name' (using format FAMILY_NAME: VARIANT....) the top 3 are:
Sicillian - 105 times
English - 46 times
QGD - 38 times

The engines had a lot of freedom to choose the opening variant. Only 37.3% of the game pairs repeated the same ECO code twice, and only 18.1% repeated the same opening variant. In 18.1% of the game pairs the ECO first letter was not repeated twice.

Reverse pairs, wins



Reverse pairs, same moves  



The reverse games diverged very quickly, 53% diverged in the first move and 87% diverged at or before the third ply. Only 7 games repeated more than 6 plys. One game pair (Gull-Arasan) repeated 26 plys after book before diverging.