Monday, January 13, 2020

Season 17 qualification league statistics

A summary statistics table of previous stages and seasons. 

Draw rate, wins


Final draw rate was 45.4%.


Game termination

The three most common game termination causes were:

39.2% - TCEC win rule
30.0% - SyzygyTB
18.8% - TCEC draw rule

There were 3 crashes in the stage: Gogobello crashed twice, Minic crashed once.

Moves per game

Median= 63
Average= 68.6

There were 20 games longer than 100 moves, the longest was 227 moves (Marvin - Minic, game 147, draw).

Time per game (hours)


Median= 1:04
Average= 1:03

Openings

There were 4-move book openings in this stage chosen by Cato. The first letter of the ECO codes was distributed as follows:


The engines did not have a lot of freedom to choose the opening variant. 85% of the game pairs repeated the same ECO code twice, and 77.5% repeated the same opening variant. In only 2.5% of the game pairs the ECO first letter was not repeated twice.

Reverse pairs, wins


Reverse pairs, same moves 


Pairs of reverse games diverged very quickly, 35% diverged immediately out of book, 78.3% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 17 plys (Demolito - Igel, games 92 and 212, Two knights defence, two draws) 

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