Elimination Grid
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Use this grid to track possibilities as you solve.
Rows are letters, columns are digits 0–9.
Click a square to mark a digit as eliminated for that letter.
(It is just for your notes, it does not affect scoring.)
Tip: click to toggle a mark.
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If you deduce a letter cannot be a digit, mark that cell.
If you later change your mind, click again to unmark.
Many solvers try to leave each row with only one unmarked digit.