- The maximum duration of the session - 37 spins.
- We put all those numbers that fell at least 2 times.
- We finish the session, when the won and start a new one.
- We finish the session, if you lost more than 50 units.
That is, make blank back, until one of the numbers will not drop out twice. Start to put on it, if you have any fall in the number twice, and put on them too. Aborting the session, if you win, reached 37 spins or lost more than 50 units.