Draw rate, wins
Final draw rate was 65.6%.
Game termination
The three most common game termination causes were:
36.7% - TCEC draw rule
28.9% - TCEC win rule
18.9% - SyzygyTB
There were no crashes in the stage.
Moves per game
Median= 56.8
Average= 60.9
There were only 5 games longer than 100 moves, the longest was 156 moves (Counter - Igel, game 58, draw).
Time per game (hours)
Median= 1:02
Average= 1:00
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 less freedom to choose the opening variant, 88.9% of the game pairs repeated the same ECO code twice, and 82.2% repeated the same opening variant. In all but one of the game pairs the ECO first letter was repeated twice.
Reverse pairs, wins
Reverse pairs, same moves
Pairs of reverse games diverged very quickly, 28.9% 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 (Demolito - Igel games 19 and 64, Queen's pawn game, two draws)
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