Ultimate Sudoku is an HTML5 numbers game that can be played on iOS and Android devices as well as PC.
This classic Sudoku game has 3 difficulty levels: easy, medium and hard!
Ultimate Sudoku Rules
- Rule 1 - Each row must contain the numbers from 1 to 9, without repetitions
- Rule 2 - Each column must contain the numbers from 1 to 9, without repetitions
- Rule 3 - The digits can only occur once per block (nonet)
- Rule 4 - The sum of every single row, column and nonet must equal 45
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