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

This Sudoku Puzzle has 11 steps and it is solved using Hidden Single, Naked Triple, Naked Pair, Give Up techniques.

Hidden Single Explanation
Try To Solve This Puzzle

Solution Steps:

  1. Row 3 / Column 4 → 5 (Hidden Single)
  2. Row 1 / Column 7 → 6 (Hidden Single)
  3. Row 2 / Column 1 → 6 (Hidden Single)
  4. Row 5 / Column 6 → 6 (Hidden Single)
  5. Row 7 / Column 6 → 5 (Hidden Single)
  6. Row 9 / Column 3 → 6 (Hidden Single)
  7. Row 8 / Column 9 → 6 (Hidden Single)
  8. Naked Triple: 1,4,7 in r138c2 => r45c2<>4, r5c2<>7
  9. Naked Triple: 1,4,7 in r279c8 => r5c8<>1, r56c8<>4
  10. Naked Pair: 2,8 in r5c28 => r5c45<>2, r5c45<>8
  11. Give Up: Don't know how to proceed!
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