2 9 6 1 3 5 7 1 5 7 3 2 1 6 8 3 5 4 7 2 6 8

Enter numbers 1 through 9 in any empty cell. If there are multiple possibilities, you can "pencil in" up to 5 different numbers in any given cell just by typing them in. You can check your progress at any time by clicking "Check", but note that it will only give you feedback on cells that have only one digit in them (cells with multiple numbers "pencilled in" will be ignored). When you're done with the puzzle, click "Check" and the system will return your final time and score. Good luck!