Season 21 league 2 statistics

A summary statistics table of previous stages and seasons.  

Draw rate, wins

Final draw rate was 56.8%. 

Game termination

The three most common game termination causes were:

42.4% - SyzygyTB
26.5% - TCEC draw rule
18.2% - Mate

There were no crashes in the stage.

Moves per game

Median= 62.8
Average= 65.3

There were 13 games longer than 100 moves, the longest was 156 moves (Arasan - ClassicAra, game 33, draw). 

Time per game (hours)

Median= 1:06
Average= 1:04

Openings

There were variable length book openings in this stage chosen by Eduardo Sauceda. The first letter of the ECO codes was distributed as follows:

The engines had a little freedom to choose the opening variant, 97% of the game pairs repeated the same ECO code and 93.9% repeated the opening variant twice. There was one game pair that didn't repeat the first letter of the ECO code.

Reverse pairs, wins

Reverse pairs, same moves

Pairs of reverse games diverged very quickly, only 22.7% diverged immediately out of book, but 66.7% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 11 plys (Defenchess - Booot, games 61 and 127, KGA, Muzio gambit, two black wins)