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

This Sudoku Puzzle has 6 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Give Up techniques.

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

Solution Steps:

  1. Row 3 / Column 4 → 1 (Hidden Single)
  2. Row 9 / Column 4 → 5 (Hidden Single)
  3. Locked Candidates Type 1 (Pointing): 6 in b5 => r7c5<>6
  4. Locked Candidates Type 2 (Claiming): 6 in r9 => r7c79,r8c89<>6
  5. Locked Candidates Type 2 (Claiming): 9 in r9 => r7c79,r8c89<>9
  6. Give Up: Don't know how to proceed!
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