It's hard to distinguish between pre-laid pieces and user placed pieces. Maybe an even darker shade would help.
It's always possible to solve without any guessing, so I guess the reasoning for not having them differentiate is that you shouldn't need to change a tile you've already placed.
I can tell this is going to be as annoyingly addictive as 2048. Great work, I've just downloaded the app!
Great fun. Haven't ventured above the 4x4 grid yet.
I agree with Matt, the 'pre-placed' tiles should be more distinctive. Love the game though!
That was great
Love this! Although, once a game has been won, the juxtaposition of a congratulatory word at the top ("Impressive! … Perfect!") and the cross icon at the bottom is really confusing. My eye is always drawn to the cross, and I feel like I've lost rather than won.