Season 21 league 3 statistics

A summary statistics table of previous stages and seasons.   

Draw rate, wins

Final draw rate was 72.0%.

Game termination

The three most common game termination causes were:

43.2% - TCEC draw rule
30.3% - SyzygyTB
13.6% - Mate

There was one crash in the stage, ClassicAra crashed a few moves before losing.

Moves per game

Median= 59
Average= 66.2

There were 14 games longer than 100 moves, the longest was 183 moves (ClassicAra - Combusken, game 103, draw). 

Time per game (hours)

Median= 1:02
Average= 1:02

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 had some freedom to choose the opening variant, 90.9% of the game pairs repeated the same ECO code twice, and 81.8% repeated the same opening variant. Only in two (3.0%) game pairs the ECO first letter was not repeated twice.

Reverse pairs, wins

Reverse pairs, same moves  

Pairs of reverse games diverged very quickly, 34.8% diverged immediately out of book, 66.7% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 11 plys (Wasp - Tucano, games 24 and 90, English Mikenas-Carls, Flohr variation, Wasp won as white)