Single Comment

The suggested mechanism looks fine, but just in case some players feel
swamped, it might be worthwhile to let them propose their opponents a
common raise of $sparetime, perhaps limited to $sumofcommonraisesinagame.
Surely some of these would accept the offer.
It also depends on how many games we play simultaneously, of course.
And what about illegal moves? Three days for the opponent, loss on the
third offence?