I like the look of this, but I think I must be missing a game mechanic on lvl 7. Rotating button to solve the piece on the left just fine, but sliding the piece on the right just back and forth, no obvious way to rotate?
How on earth is lvl 10 solvable? To make 9 in the row, you need to use the 4 and the 5... but then, the prefilled numbers mean that the columns are over 8 immediately?
Also not a problem! Thanks :)