Solution for Hard Sudoku #3436458921798
9
4
1
2
6
5
3
7
8
8
6
5
1
7
3
9
2
4
7
2
3
8
4
9
5
1
6
5
3
9
4
8
2
7
1
6
2
1
6
7
3
9
4
5
8
4
8
7
1
6
5
3
9
2
8
2
7
1
5
3
6
9
4
3
9
1
6
4
2
5
8
7
6
5
4
9
7
8
2
3
1
This Sudoku Puzzle has 63 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 1 / Column 6 → 5 (Naked Single)
- Row 2 / Column 6 → 3 (Naked Single)
- Row 3 / Column 6 → 4 (Naked Single)
- Row 6 / Column 6 → 8 (Naked Single)
- Row 7 / Column 6 → 1 (Full House)
- Row 4 / Column 5 → 1 (Hidden Single)
- Row 8 / Column 8 → 7 (Hidden Single)
- Row 5 / Column 5 → 3 (Hidden Single)
- Row 6 / Column 7 → 3 (Hidden Single)
- Row 3 / Column 1 → 3 (Hidden Single)
- Row 7 / Column 4 → 3 (Hidden Single)
- Row 3 / Column 3 → 8 (Hidden Single)
- Row 8 / Column 1 → 1 (Hidden Single)
- Row 9 / Column 9 → 1 (Hidden Single)
- Row 1 / Column 3 → 1 (Hidden Single)
- Row 3 / Column 8 → 1 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 9 in b3 => r78c9<>9
- Locked Candidates Type 1 (Pointing): 7 in b4 => r2c1<>7
- Locked Candidates Type 1 (Pointing): 5 in b9 => r7c5<>5
- Locked Candidates Type 2 (Claiming): 6 in c7 => r7c89,r8c9<>6
- 2-String Kite: 2 in r3c4,r6c9 (connected by r4c4,r6c5) => r3c9<>2
- Turbot Fish: 2 r1c8 =2= r2c9 -2- r6c9 =2= r6c5 => r1c5<>2
- XY-Wing: 2/6/9 in r1c18,r3c9 => r3c2<>9
- XY-Wing: 5/9/2 in r49c4,r9c7 => r4c7<>2
- Row 4 / Column 7 → 4 (Naked Single)
- Row 5 / Column 1 → 4 (Hidden Single)
- Row 5 / Column 2 → 8 (Hidden Single)
- Row 7 / Column 1 → 8 (Hidden Single)
- Row 9 / Column 5 → 8 (Hidden Single)
- Row 6 / Column 3 → 6 (Hidden Single)
- Row 8 / Column 9 → 8 (Hidden Single)
- Row 9 / Column 4 → 5 (Hidden Single)
- Row 4 / Column 4 → 2 (Naked Single)
- Row 6 / Column 5 → 5 (Full House)
- Row 6 / Column 1 → 7 (Naked Single)
- Row 6 / Column 9 → 2 (Full House)
- Row 8 / Column 5 → 4 (Hidden Single)
- Row 7 / Column 9 → 4 (Hidden Single)
- Row 4 / Column 9 → 7 (Hidden Single)
- Row 1 / Column 8 → 2 (Hidden Single)
- Row 1 / Column 1 → 9 (Naked Single)
- Row 1 / Column 5 → 6 (Full House)
- Row 7 / Column 8 → 5 (Naked Single)
- Row 5 / Column 8 → 6 (Full House)
- Row 5 / Column 9 → 5 (Full House)
- Row 2 / Column 3 → 5 (Naked Single)
- Row 4 / Column 3 → 9 (Full House)
- Row 4 / Column 1 → 5 (Full House)
- Row 2 / Column 1 → 2 (Full House)
- Row 3 / Column 4 → 9 (Naked Single)
- Row 8 / Column 4 → 6 (Full House)
- Row 7 / Column 5 → 9 (Full House)
- Row 8 / Column 7 → 9 (Full House)
- Row 2 / Column 5 → 7 (Naked Single)
- Row 3 / Column 5 → 2 (Full House)
- Row 3 / Column 9 → 6 (Naked Single)
- Row 2 / Column 9 → 9 (Full House)
- Row 2 / Column 2 → 6 (Full House)
- Row 3 / Column 2 → 7 (Full House)
- Row 7 / Column 2 → 2 (Naked Single)
- Row 7 / Column 7 → 6 (Full House)
- Row 9 / Column 7 → 2 (Full House)
- Row 9 / Column 2 → 9 (Full House)
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