Sudoku Express

App solicits ratings, so looses a full star. Leaderboard is easily undermined, to the point of uselessness, by taking a screenshot of the original puzzle, closing the app, solving via screenshot, and then inputting the solution in the reopened puzzle. The person who cheats the fastest wins.

When a number has been correctly placed in all 9 squares, please remove that number from the possibles row, or dim it, or somehow indicate that the number is complete. It’s not fun continually going through the numbers and checking each square to see if it’s already there. That really slows down the game and reduces the enjoyment.

Have only done paper and pencil Sudokus so wasn't sure what a digital one would be like. But it was great fun, and the instructions made it easy even for someone technologically-challenged like me!