We've played 3 billion live chess games on this site. Here is the 3 billionth game:
We've reached 3000000000 live chess games
Interesting
First billion took 7 years and 7 months (May 2007 to Dec 2014)
Second billion took 2 years 3 months (Dec 2014 to Mar 2017)
Third billion took 1 year 5 months (Mar 2017 to Aug 2018)
So 1 billion games were played in the span of ~518 days.
...
That averages out to ~1.9 million games per day.
Wow.
Seems to check out though.
Roughly 20K people in live chess at any time.
If we assume the average user spends about 1 hour playing before logging off...
Then to reach 1.9 million games a day the average user only needs to play 4 games.
This guesstimate would put the average game length at 15 minutes, so the average time control less than half that, which also checks out (IIRC the most popular time control is 10 minute blitz, and all the other speed games would make the average below that).
Seems to check out though.
Roughly 20K people in live chess at any time.
If we assume the average user spends about 1 hour playing before logging off...
Then to reach 1.9 million games a day the average user only needs to play 4 games.
This guesstimate would put the average game length at 15 minutes, so the average time control less than half that, which also checks out (IIRC the most popular time control is 10 minute blitz, and all the other speed games would make the average below that).
Trying to follow your math. 20k users/ hour times 24 hours/ day = 480k daily users.
However, if they each play 4 games, then you would get only 960k games per day, since you need 2 per game.
We've played 3 billion live chess games on this site. Here is the 3 billionth game:
https://www.chess.com/live/game/3000000000