Touch To Push: puzzle app for iphone & ipad

Ivan Vassilev recently contacted me about his new puzzle app Touch To Push. The object is to get the red circle to the red ring. How: touch on an empty cell, and all the colored tiles will slide away as far as possible. There are 400 levels. I did the first 50 and the last 50. Touch To Push is a very respectable puzzle app, but I'm not feeling the addiction. I prefer Ivan's other puzzle app: tJam, which is almost a masterpiece.