iPhone Game: Puzzle

This game is quite simple. The screen is going to be split in 2. Top Screen: Here is where the puzzle pieces are going to be, the user must be able to pick one piece at a time and place then in the main screen and rotate it if needed. Main Screen: It is the puzzle board. It has 6 columns and 8 lines, and each "column x line" correspond to a symbol: "x, y and z". There are going to be 15 different levels. The puzzle board is all the same but the pieces change. The attached image can help. It will be a timer to count how long the user take to finish it and a high score where the user can save his name x time. The images: icon, startup screen, puzzle board and puzzle pieces will be provided.