Good but needs some improvement

This game is fun to play but would be even more so if I didnt have to spend time going back and forth to the number grid in order to enter a number in the puzzle. I would like to be able to click on a number anywhere in the puzzle to be able to enter it somewhere else in a grid. Also, the timer should not start working until the number grid appears on the right side to begin placing numbers. Otherwise its an addictive game.

smp276 about (heart) Sudoku