2
7
9
1
8
4
1
6
2
9
5
2
3
6
9
9
8
5

This Sudoku Puzzle has 8 steps and it is solved using Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Give Up techniques.

Naked Single Explanation
Hidden Single Explanation
Locked Candidates Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 7 / Column 3 → 8 (Naked Single)
  2. Row 5 / Column 3 → 2 (Hidden Single)
  3. Row 2 / Column 6 → 2 (Hidden Single)
  4. Row 8 / Column 4 → 2 (Hidden Single)
  5. Row 7 / Column 5 → 5 (Hidden Single)
  6. Row 9 / Column 3 → 9 (Hidden Single)
  7. Locked Candidates Type 1 (Pointing): 5 in b4 => r12c1<>5
  8. Give Up: Don't know how to proceed!
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