Lesson 04 · Sudoku Coach
Naked Pair Sudoku lesson
Two cells in one unit share the same two candidates, reserving both digits.
The working method
- 1.Find two cells in one unit with the same two candidates.
- 2.Reserve those two digits for the pair.
- 3.Remove either paired digit from every other cell in that unit.
Evidence exercise 1 of 3
Find the proof, not the answer.
Select all 2 evidence cells that make this Naked Pair deduction valid.
What to inspect
Two cells in one unit share the same two candidates, reserving both digits.
Source puzzle · sudoku-0004
Candidate marks reflect a verified intermediate state from this published grid.
Use mouse, touch, or keyboard. Arrow keys move focus; Enter or Space selects a cell.