1
9
4
6
3
1
8
2
2
6
9
5
8
3
2
8
3
3
4
1
8
5
1
3
7
9
3
5
6
8
7
5
4
This Sudoku Puzzle has 59 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Hidden Pair, undefined, Naked Single, Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Hidden Pair
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 2 / Column 1 → 2 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 5 in b1 => r1c4<>5
- Locked Candidates Type 1 (Pointing): 4 in b4 => r7c2<>4
- Locked Candidates Type 1 (Pointing): 1 in b5 => r89c4<>1
- Locked Candidates Type 1 (Pointing): 2 in b6 => r4c45<>2
- Naked Triple: 4,5,7 in r2c46,r3c5 => r1c46<>4, r1c46<>7
- Row 1 / Column 9 → 4 (Hidden Single)
- Naked Triple: 4,5,7 in r2c467 => r2c3<>7
- Naked Triple: 6,7,9 in r5c367 => r5c4<>6, r5c45<>7, r5c45<>9
- Hidden Pair: 1,3 in r39c8 => r3c8<>7, r9c8<>2
- X-Wing: 6 c37 r57 => r5c6<>6
- Row 1 / Column 6 → 6 (Hidden Single)
- Row 1 / Column 4 → 9 (Naked Single)
- Naked Triple: 4,7,9 in r46c5,r5c6 => r46c4<>4, r46c4<>7
- Locked Candidates Type 1 (Pointing): 4 in b5 => r7c5<>4
- Row 7 / Column 3 → 4 (Hidden Single)
- Row 8 / Column 3 → 8 (Naked Single)
- Row 2 / Column 3 → 3 (Naked Single)
- Row 7 / Column 2 → 2 (Naked Single)
- Row 8 / Column 9 → 2 (Naked Single)
- Row 2 / Column 9 → 8 (Naked Single)
- Row 3 / Column 3 → 7 (Naked Single)
- Row 5 / Column 3 → 6 (Full House)
- Row 7 / Column 5 → 9 (Naked Single)
- Row 9 / Column 2 → 5 (Naked Single)
- Row 9 / Column 1 → 6 (Full House)
- Row 4 / Column 9 → 6 (Naked Single)
- Row 9 / Column 9 → 3 (Full House)
- Row 8 / Column 4 → 4 (Naked Single)
- Row 1 / Column 8 → 7 (Naked Single)
- Row 1 / Column 1 → 5 (Naked Single)
- Row 1 / Column 2 → 8 (Full House)
- Row 3 / Column 5 → 5 (Naked Single)
- Row 7 / Column 7 → 6 (Naked Single)
- Row 7 / Column 8 → 8 (Full House)
- Row 4 / Column 4 → 1 (Naked Single)
- Row 9 / Column 8 → 1 (Naked Single)
- Row 8 / Column 7 → 9 (Full House)
- Row 8 / Column 6 → 1 (Full House)
- Row 2 / Column 7 → 5 (Naked Single)
- Row 6 / Column 8 → 9 (Naked Single)
- Row 2 / Column 4 → 7 (Naked Single)
- Row 2 / Column 6 → 4 (Full House)
- Row 3 / Column 7 → 1 (Naked Single)
- Row 3 / Column 8 → 3 (Full House)
- Row 5 / Column 7 → 7 (Full House)
- Row 4 / Column 8 → 2 (Full House)
- Row 5 / Column 5 → 2 (Naked Single)
- Row 4 / Column 2 → 4 (Naked Single)
- Row 6 / Column 2 → 1 (Full House)
- Row 6 / Column 4 → 6 (Naked Single)
- Row 9 / Column 6 → 7 (Naked Single)
- Row 9 / Column 4 → 2 (Full House)
- Row 5 / Column 6 → 9 (Full House)
- Row 5 / Column 4 → 5 (Full House)
- Row 6 / Column 1 → 7 (Naked Single)
- Row 4 / Column 1 → 9 (Full House)
- Row 4 / Column 5 → 7 (Full House)
- Row 6 / Column 5 → 4 (Full House)
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