Season 22 league 4 statistics

A summary statistics table of previous stages and seasons. 

Draw rate, wins

Final draw rate was 56.1%.

Game termination

The three most common game termination causes were:

32.6% - SyzygyTB
30.3% - TCEC draw rule
23.5% - Mate

There was one crash in the stage by MrBob.

Moves per game

Median= 61
Average= 66.3

There were 12 games longer than 100 moves, the longest was 263 moves (Amoeba - Nirvana, game 47, draw).

Time per game (hours)

Median= 0:58
Average= 0:57

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 a little freedom to choose the opening variant, 77.3% of the game pairs repeated the same ECO code twice, and 77.3% repeated the same opening variant. In 4.5% 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, 36.4% diverged immediately out of book, 66.7% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 14 plys (Zahak - Drofa, games 19 and 85, KGA Kieseritsky, Berlin defence, two draws)