Board Thread:Game Discussion/@comment-10276925-20130815185017/@comment-10727129-20130815223234

It sounds really dumb, and it is, but if you're on your phone... play left handed! The chain spot is in a very convenient spot for a right thumb, but the left thumb is over the net button, and the extra second it takes your brain to process using the off hand will keep you from making that mistake.

Of course, if you're one of those unnatural left handed people (of which I married one), then you probably aren't having this problem.