Season 25 entrance league statistics

A summary statistics table of previous stages and seasons.  

Draw rate, wins

Final draw rate was 52.9%. 

Game termination

The three most common game termination causes were:
36.5% - SyzygyTB
35.8% - TCEC draw rule
19.6% - mate

There were 3 crashes in the stage, Caissa lost on time twice (once in a winning position), and MrBob crashed once (in a losing position).

Moves per game

Median= 66.5
Average= 72.6

There were 25 games longer than 100 moves, the longest was 198 moves (MrBob - Caissa, game 86, Caissa won). 

Time per game (hours)

Median= 1:01
Average= 1:00

Openings

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

The engines had almost no freedom to choose the opening variant, all of the game pairs but one repeated the ECO code and the opening variant twice. In all of the game pairs the first letter of the ECO code was repeated.

Reverse pairs, wins

Reverse pairs, same moves

Pairs of reverse games diverged quickly, 27.5% diverged immediately out of book, 63.3% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 11 plys (Clover - Winter, games 51 and 171, Alekhine's defence, four pawns attack, fianchetto variation, Clover won as white)