User blog comment:Caporai/League of Legends chess and champions as pieces/@comment-4477755-20110925101525/@comment-3286233-20110925105156

You will get used to it in the end. :D At first the brain doesn't get the memories which pieces is who. but sooner or later the brain will put pieces to exact who they are and in the end, You can tell the difference.

Beside there are probably methods to do that in order to distinguish between pieces. There are more of some chess that have different setups.(Like Talon as Knight, he stands on a statue shaped like a horse, waiting to struck down some enemies. Something like that) :D