Season 18 premier division statistics

A summary statistics table of previous stages and seasons.  

Draw rate, wins

Final draw rate was 79.2%. 

Game termination

The three most common game termination causes were:

51.8% - TCEC draw rule
19.6% - TCEC win rule
17.3% - SyzygyTB

There were no crashes in the stage.

Moves per game

Median= 57.5
Average= 68.7

There were 23 games longer than 100 moves, the longest was 304 moves (rofChade - Leela, game 141, draw). 

Time per game (hours)

Median= 2:57
Average= 2:54

Openings

There were 8-move book openings in this stage chosen by Cato. The first letter of the ECO codes was distributed as follows:

The engines had almost no freedom to choose the opening variant, all except two of the game pairs repeated the same ECO code and the same opening variant twice. 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, 32.1% diverged immediately out of book, 67.9% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 16 plys (Stoofvlees - Leela games 75 and 103, Alekhine's defence, modern, Larsen variation, two draws).