Sudoku Puzzles to Solve


Enter number of blanks (0 to 81):    

Sudoku Rules In the 9x9 Sudoku puzzle above, the objective is to achieve an arrangement of numbers such that 1 to 9 appear in each of the nine:

  • 3x3 regions as delineated by the light blue and green shading
  • rows
  • columns

See an example of a completed Sudoku board.

Usage Instructions Click within an input square on the Sudoku board. This is where numbers are needed to complete the Sudoku puzzle. The keyboard keys that are accepted are:

  • The numeric keys 1 to 9 on the top portion of the keyboard or the right numeric keypad.
  • Tab to move from one input field to the next.
  • Shift Tab to move from one input field to the previous.

User entered numbers are in bold and of different color from the pre-set numbers. An invalid entry is indicated with yellow highlighting.

See Sudoku Puzzles blog entry for information on Sudoku and this implementation.

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