SudokuPower.com
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SudokuPower is your online sudoku resource.

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Solve puzzles by completing the grid so that all rows, columns and boxes contain the digits 1 to 9.

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Click loads puzzle
Available levels.
Click a level, then see 'Solver methods' for level info.

Solver method(s).
Required sudoku tactics for solving selected puzzle-level.
Apply basic constraints.
Find hidden singles.
Find candidates in row or column that intersect with subsquare.
Find hidden sets (e.g. double, triple) up to sets of 5.
Find naked sets (e.g. double, triple) up to sets of 5.
Find candidates in subsquare that intersect with row or column.
Find x-wing, swordfish, jelly-fish or squirmbag.
Find nishio
Find forced chains.
Guessing and backtracking.
Available hints.
Please select a hint.
Help

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1 2 3 4 5 6
7 8 9 X ? -
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