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

This Sudoku Puzzle has 10 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 1 / Column 7 → 9 (Naked Single)
  2. Row 3 / Column 7 → 3 (Naked Single)
  3. Row 4 / Column 3 → 1 (Hidden Single)
  4. Row 9 / Column 2 → 1 (Hidden Single)
  5. Row 6 / Column 8 → 3 (Hidden Single)
  6. Row 4 / Column 8 → 5 (Hidden Single)
  7. Locked Candidates Type 1 (Pointing): 7 in b2 => r3c123<>7
  8. Locked Candidates Type 1 (Pointing): 6 in b3 => r78c9<>6
  9. Locked Candidates Type 1 (Pointing): 4 in b6 => r78c9<>4
  10. Give Up: Don't know how to proceed!
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