Sunday, May 17, 2020

Season 18 league 2 statistics

A summary statistics table of previous stages and seasons. 

Draw rate, wins


Final draw rate was 60.0%.


Game termination

The three most common game termination causes were:



31.1% - TCEC win rule

30.0% - SyzygyTB
27.8% - TCEC draw rule

There were one crash in the stage by Nemorino, in a lost position.

Moves per game


Median= 60.3
Average= 62.6

There were only 4 games longer than 100 moves, the longest was 167 moves (Winter - Gogobello, game 31, draw).

Time per game (hours)
  
Median= 1:01
Average= 1:00

Openings

There were 6-move book openings in this stage chosen by Cato. The first letter of the ECO codes was distributed as follows:


The engines had less freedom to choose the opening variant, 80.0% of the game pairs repeated the same ECO code twice, and 73.3% repeated the same opening variant. 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, 37.8% diverged immediately out of book, 68.9% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 9 plys (ChessBrain - Chiron games 25 and 70, Benko gambit main line, ChessBrain won as black)

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