Draw rate, wins
Final draw rate was 41.1%.
Game termination
The three most common game termination causes were:
45.6% - TCEC win rule
21.1% - SyzygyTB
17.8% - TCEC draw rule
There were no crashes in the stage.
Moves per game
Median= 62
Average= 69.3
There were 11 games longer than 100 moves, the longest was 196 moves (Counter - Tucano, game 57, draw).
Time per game (hours)
Median= 1:05
Average= 1:05
Openings
There were 2-move book openings in this stage chosen by Cato. The first letter of the ECO codes was distributed as follows:
The engines had a lot of freedom to choose the opening variant. Only 62.2% of the game pairs repeated the same ECO code twice, and only 57.8% repeated the same opening variant. However, only in 4.4% 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, 44.4% diverged immediately out of book, 75.6% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 14 plys (ChessFighter - chess22k, games 24 and 69, Petrov classical attack, Marshall variation, chess22k won as white and drew as black)
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