Thursday, March 31, 2022

Season 22 premier division statistics

A summary statistics table of previous stages and seasons.  

Draw rate, wins

Final draw rate was 58.0%. 

Game termination

The three most common game termination causes were:

42.0% - TCEC draw rule
35.7% - SyzygyTB
17.0% - Mate

There was one crash in the stage by ScorpioNN.

Moves per game

Median= 69
Average= 75.6

There were 25 games longer than 100 moves, the longest was 311 moves (SlowChess - Stoofvlees, game 119, draw). 

Time per game (hours)

Median= 2:07
Average= 2:05

Openings

There were 8-move book openings in this stage chosen by Cato. 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 repeated the same ECO code and the same opening variant twice.

Reverse pairs, wins

Reverse pairs, same moves

Most of the pairs of reverse games diverged quickly, 20.5% diverged immediately out of book, 51.8% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 24 plys (Stockfish - Leela, games 6 and 34, Scandinavian defence, two draws) 


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