Sudoku Game: Fun and Challenging

Thought for Today

Believe you can and you're halfway there. - Theodore Roosevelt

Color Changer

Sudoku Game: Tips And Tricks

Naked Single:: If a cell has only one possible value, then that value must be the correct value for that cell. We can use this technique to fill in cells that have only one candidate value.
Hidden Single:: If a value only appears as a candidate in one cell within a row, column or box, then that value must be the correct value for that cell. We can use this technique to find cells that have hidden single candidates.
Naked Pair:: If two cells in a row, column or box have only the same two candidates, then those candidates can be eliminated from all other cells in that row, column or box. We can use this technique to eliminate candidates from cells.
Pointing Pair/Triple:: If a candidate appears only in a row or column of a box, then that candidate can be eliminated from the other cells in that row or column outside of the box. We can use this technique to eliminate candidates from cells.
Box/Line Reduction:: If a candidate appears only in one row or column of a box, then that candidate can be eliminated from all other cells in that row or column outside of the box. We can use this technique to eliminate candidates from cells.