Solution for Hard Sudoku #3238249765198
5
3
6
9
1
7
2
4
8
1
9
4
6
2
8
5
7
3
2
7
8
3
4
5
1
6
9
6
7
3
4
8
5
1
9
2
9
4
2
7
3
1
8
5
6
8
5
1
6
9
2
7
3
4
8
5
4
7
2
9
3
6
1
2
6
7
3
1
5
4
8
9
9
1
3
4
8
6
5
2
7
This Sudoku Puzzle has 62 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), undefined, Turbot Fish techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 9 / Column 4 → 4 (Naked Single)
- Row 8 / Column 4 → 3 (Naked Single)
- Row 4 / Column 4 → 9 (Naked Single)
- Row 7 / Column 4 → 2 (Naked Single)
- Row 3 / Column 4 → 5 (Full House)
- Row 6 / Column 5 → 5 (Hidden Single)
- Row 5 / Column 5 → 3 (Hidden Single)
- Row 4 / Column 3 → 3 (Hidden Single)
- Row 2 / Column 2 → 1 (Hidden Single)
- Row 7 / Column 9 → 3 (Hidden Single)
- Row 3 / Column 6 → 3 (Hidden Single)
- Row 7 / Column 7 → 9 (Hidden Single)
- Row 1 / Column 1 → 5 (Hidden Single)
- Row 2 / Column 9 → 5 (Hidden Single)
- Row 9 / Column 7 → 5 (Hidden Single)
- Row 7 / Column 2 → 5 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 4 in b1 => r3c5<>4
- Locked Candidates Type 1 (Pointing): 1 in b6 => r8c9<>1
- Locked Candidates Type 1 (Pointing): 7 in b7 => r23c1<>7
- Locked Candidates Type 2 (Claiming): 8 in c3 => r23c1,r3c2<>8
- 2-String Kite: 6 in r4c1,r7c6 (connected by r4c5,r6c6) => r7c1<>6
- Turbot Fish: 6 r4c5 =6= r4c1 -6- r8c1 =6= r9c2 => r9c5<>6
- XY-Wing: 4/7/6 in r1c36,r6c6 => r6c3<>6
- Row 6 / Column 3 → 2 (Naked Single)
- Row 5 / Column 9 → 2 (Hidden Single)
- Row 5 / Column 8 → 9 (Hidden Single)
- Row 3 / Column 9 → 9 (Hidden Single)
- Row 1 / Column 5 → 9 (Hidden Single)
- Row 4 / Column 7 → 8 (Hidden Single)
- Row 2 / Column 1 → 9 (Hidden Single)
- Row 1 / Column 6 → 4 (Hidden Single)
- Row 6 / Column 6 → 6 (Naked Single)
- Row 4 / Column 5 → 4 (Full House)
- Row 4 / Column 9 → 1 (Naked Single)
- Row 4 / Column 1 → 6 (Full House)
- Row 2 / Column 5 → 2 (Hidden Single)
- Row 3 / Column 1 → 2 (Hidden Single)
- Row 6 / Column 1 → 1 (Hidden Single)
- Row 9 / Column 2 → 6 (Hidden Single)
- Row 3 / Column 2 → 4 (Naked Single)
- Row 5 / Column 2 → 8 (Full House)
- Row 5 / Column 1 → 4 (Full House)
- Row 9 / Column 9 → 7 (Naked Single)
- Row 9 / Column 5 → 8 (Full House)
- Row 6 / Column 9 → 4 (Naked Single)
- Row 6 / Column 7 → 7 (Full House)
- Row 8 / Column 7 → 4 (Full House)
- Row 8 / Column 9 → 6 (Full House)
- Row 3 / Column 5 → 7 (Naked Single)
- Row 2 / Column 6 → 8 (Full House)
- Row 7 / Column 6 → 7 (Full House)
- Row 2 / Column 3 → 7 (Full House)
- Row 3 / Column 8 → 6 (Naked Single)
- Row 1 / Column 8 → 7 (Full House)
- Row 1 / Column 3 → 6 (Full House)
- Row 3 / Column 3 → 8 (Full House)
- Row 8 / Column 5 → 1 (Naked Single)
- Row 7 / Column 5 → 6 (Full House)
- Row 7 / Column 1 → 8 (Naked Single)
- Row 7 / Column 8 → 1 (Full House)
- Row 8 / Column 8 → 8 (Full House)
- Row 8 / Column 1 → 7 (Full House)
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