Good engine, very poor UI

This is a very strong engine, but the UI is very poorly implemented. The chess sets are quite low resolution and aliased, move animation is very jarring and often moves past the target square and often times opponents move is animated while your move is still in progress. Swiping to take back move rarely works, having dedicated buttons for this would be much better. The chip icon at the bottom is quite inappropriate here and touching it does something unexpected. I think the developers of this UI could take quite a few hints from Shredder which has pretty good UI.

Mario Grgic about HIARCS Chess