SudokuVariants

Candidate Removal

When you place a digit, it cannot appear again in the same row, column or box. Remove that digit from all peer cells before looking for singles or more advanced techniques.

Candidate removal

In the example above 9 is placed in R5C1. The red 9 candidates in row 5, column 1 and box 4 can no longer be 9, so remove them.

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Grid Snapshots
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Only last 10 snapshots per grid are stored.

Saving snapshot will delete old snapshot with same grid configuration (if exists).

Saving snapshot will save grid in current configuration if grid isn't saved or if it's saved as draft.

Enter sudoku grid as text (use 0 for empty cells). Only classic sudoku grids can be imported as text. Importing grid cannot be undone, please save all previous changes.

Save Sudoku Grid

All public grids must be solvable by SudokuVariants. Looking for solution...

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