A summary statistics table of previous stages and seasons.
Draw rate, wins
Final draw rate was 45.5%. The draw rate was higher than in division 4 but still quite low.
The three most common game termination causes were:
37.5% - TCEC win rule
22.3% - SyzygyTB
18.8% - TCEC draw rule
Hannibal crashed 5 times in the division, Arasan and rofChade crashed once each.
Moves per game
There were 13 games longer than 100 moves, the
longest was 199 moves (Leela - Pedone, round 11, Leela won).
Time per game (hours)
There were 2-move book openings in this stage chosen by Cato. The first letter of the ECO codes was
distributed as follows:
I'm dropping the opening 'family name' section. I noticed that the current opening naming used by TCEC is not consistent (e.g. "Sicillian", "Sicillian defense" both used, the separator can be ":" or ","). This has probably been true for several past reports.
engines had a lot of freedom to choose the opening variant. Yet 57.1%
of the game pairs repeated the same ECO code twice, and 50%
repeated the same opening variant. In 7.1% 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, 50% diverged immediately
out of book, 83.9% of the pairs diverged at most after 1 move. The
longest repeated sequence of moves was 8 plys (rofChade - Hannibal,
rounds 6 and 13, KGD Keene's defense, Hannibal crashed as white, otherwise two draws)