Season 18 superfinal statistics

A summary statistics table of previous stages and seasons. 

Draw rate, wins

Final draw rate was 61%.

Game termination

The three most common game termination causes were:

51% - TCEC draw rule
37% - TCEC win rule
5% - SyzygyTB, 3-Fold repetition

There were no crashes in the stage.

Moves per game

Median= 64.3
Average= 75.6

There were 16 games longer than 100 moves, the longest was 357 moves (Leela - Stockfish, game 73, draw).

Time per game (hours)

Median= 3:14
Average= 3:08

Openings

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

The engines had almost no freedom to choose the opening variant, 96% of the game pairs repeated the same ECO code and opening variant. In all the game pairs the ECO first letter was repeated twice. The two exceptions were a few very short book sequences of length under 5.

Reverse pairs, wins

There was an unusual high number of 1-1 results with two white wins, Jeroen's openings were designed to be more biased than usual.

Reverse pairs, same moves

Pairs of reverse games diverged very quickly, 36% diverged immediately out of book, 72% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 12 plys (Leela - Stockfish games 87 and 88, KGA Quaade gambit, Stockfish wins as white)