Season 10, stage 1 statistics

Draw rate, wins

Final draw rate was 40.2%, with a bias towards wins for white.


Game termination

The three most common game termination causes were:
57.6% - TCEC win rule
20.6% - TCEC draw rule
9.8% - TB position
9.8% - 3-fold repetition

There were 3 crashes (and no losses on time), Fizbo crashed twice and Arasan once. All in all stability was excellent.

Moves per game

median = 56.5
average = 63

There is a long right tail of long (and extremely boring) games. About 10% of the games were over 100 moves long, 6 games over 150 moves, the longest had 236.5 (Komodo-Chiron).

Time per game 

median = 2:01
average =2:01


The short added time per move, only 10 seconds, forced the games to end quickly even if many moves were played.

Openings


Using ECO codes there were 144 different openings played. The top ECO codes were:
B20 9 times - Sicilian defence
A80 8 times - Dutch
A01 7 times - Nimzovich - Larsen attack
B00 7 times - King's pawn opening
 
Using full opening name there were 235 different openings in 276 games. Reti: KIA was repeated 4 times, 8 more openings were repeated 3 times. 

Using only the first letter of the ECO codes we get the following distribution:

The openings were biased towards flank openings (e.g. Dutch, Reti and English), a lot less open games and almost no Indian defences.


If we use the opening 'family name' (using format FAMILY_NAME: VARIANT....) the top 3 are:
English - 33 times
Sicillian - 33 times
Dutch - 17 times
Reti - 17 times