uDigits is a different game for lovers of numeric puzzle games, like Sudoku. It is new, original, and very easy to play. The idea is simple: in as few moves as possible, match and cross pairs of digits that are the same or equal to 10 when added.
Pro: two digits are next to each other horizontally (they follow one another, either on the same row or wrapping to the next row), or vertically
Advanced: two digits that are the first uncrossed and the last uncrossed digits on the field. Plus the rule from Pro.
Beginner: the two matching digits are located diagonally, but only on consecutive rows. Plus the rules from Advanced and Pro.