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

This Sudoku Puzzle has 9 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Single, Hidden Pair, Grouped Discontinuous Nice Loop, Give Up techniques.

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

Solution Steps:

  1. Row 8 / Column 9 → 8 (Hidden Single)
  2. Locked Candidates Type 1 (Pointing): 4 in b5 => r5c1379<>4
  3. Locked Candidates Type 1 (Pointing): 6 in b5 => r8c5<>6
  4. Locked Candidates Type 1 (Pointing): 2 in b9 => r7c236<>2
  5. Row 7 / Column 2 → 9 (Naked Single)
  6. Locked Candidates Type 1 (Pointing): 3 in b9 => r36c8<>3
  7. Hidden Pair: 1,2 in r38c5 => r3c5<>5, r3c5<>7, r38c5<>9
  8. Grouped Discontinuous Nice Loop: 4 r1c8 -4- r8c8 =4= r7c79 -4- r7c3 -6- r1c3 =6= r1c8 => r1c8<>4
  9. Give Up: Don't know how to proceed!
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