Draw rate, wins
Final draw rate was 60.7%.
Game termination
The three most common game termination causes were:
29.5% - SyzygyTB
27.7% - TCEC win rule
22.3% - TCEC draw rule
ChessBrain crashed once in the division. One Leela game stopped due to a network failure and was later adjudicated manually.
Moves per game
Median= 63.5
Average= 76.9
There were 22 games longer than 100 moves, the longest was 216 moves (Booot - Leela, round 25, draw).
Time per game (hours)
Median= 1:13
Average= 1:15
Openings
There were 6-move book openings in this stage chosen by Cato. The first letter of the ECO codes was distributed as follows:
The 6-move book determined the opening in most cases, 83.9% of the game pairs repeated the same ECO code twice, 78.6% repeated the same opening variant. In 1.8% of the game pairs (one pair) the ECO first letter was not repeated twice.
Reverse pairs, wins
Reverse pairs, same moves
Pairs of reverse games diverged very quickly, 39.2% diverged immediately out of book, 80.3% of the pairs diverged at most after 1 move. The longest repeated sequence of moves was 11 plys (Gull - Xiphos, rounds 16 and 23, Sici lian Anderssen variation, Xiphos won as white, the other game was a draw)
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