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

This Sudoku Puzzle has 11 steps and it is solved using Full House, Hidden Single, Naked Single, Locked Candidates Type 1 (Pointing), Uniqueness Test 4, Give Up techniques.

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

Solution Steps:

  1. Row 6 / Column 8 → 2 (Full House)
  2. Row 1 / Column 5 → 4 (Hidden Single)
  3. Row 9 / Column 8 → 4 (Hidden Single)
  4. Row 1 / Column 2 → 1 (Hidden Single)
  5. Row 2 / Column 2 → 8 (Naked Single)
  6. Row 9 / Column 2 → 9 (Full House)
  7. Row 2 / Column 5 → 1 (Hidden Single)
  8. Locked Candidates Type 1 (Pointing): 2 in b2 => r3c17<>2
  9. Locked Candidates Type 1 (Pointing): 2 in b3 => r78c9<>2
  10. Uniqueness Test 4: 2/5 in r1c19,r2c19 => r1c19<>5
  11. Give Up: Don't know how to proceed!
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