Solution for Evil Sudoku #1159713524895
3
5
7
5
3
1
5
4
2
4
3
8
2
7
5
9
1
4
1
8
9
7
5
8
1
7
This Sudoku Puzzle has 56 steps and it is solved using Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Naked Pair, Hidden Pair, Give Up techniques.
Naked Single
Explanation
Hidden Single
Explanation
Hidden Pair
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 9 / Column 5 → 1 (Hidden Single)
- Row 9 / Column 7 → 4 (Hidden Single)
- Row 8 / Column 9 → 5 (Hidden Single)
- Row 7 / Column 2 → 5 (Hidden Single)
- Row 8 / Column 2 → 3 (Hidden Single)
- Row 7 / Column 1 → 7 (Hidden Single)
- Row 4 / Column 1 → 6 (Naked Single)
- Row 6 / Column 2 → 7 (Hidden Single)
- Row 4 / Column 8 → 7 (Hidden Single)
- Row 1 / Column 1 → 4 (Hidden Single)
- Row 1 / Column 9 → 7 (Hidden Single)
- Row 2 / Column 5 → 7 (Hidden Single)
- Row 1 / Column 3 → 8 (Hidden Single)
- Row 5 / Column 1 → 8 (Hidden Single)
- Row 6 / Column 9 → 8 (Hidden Single)
- Row 2 / Column 1 → 2 (Hidden Single)
- Row 9 / Column 1 → 9 (Full House)
- Row 6 / Column 7 → 2 (Hidden Single)
- Row 8 / Column 8 → 9 (Hidden Single)
- Row 1 / Column 5 → 2 (Hidden Single)
- Row 8 / Column 6 → 2 (Hidden Single)
- Row 8 / Column 4 → 8 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 6 in b6 => r5c5<>6
- Locked Candidates Type 1 (Pointing): 3 in b8 => r7c8<>3
- Naked Pair: 6,8 in r2c68 => r2c247<>6
- Row 2 / Column 4 → 9 (Naked Single)
- Row 2 / Column 2 → 1 (Naked Single)
- Row 2 / Column 7 → 1 (Naked Single)
- Row 6 / Column 4 → 6 (Naked Single)
- Row 6 / Column 6 → 1 (Naked Single)
- Row 6 / Column 3 → 9 (Full House)
- Row 4 / Column 6 → 4 (Naked Single)
- Row 5 / Column 3 → 5 (Naked Single)
- Row 4 / Column 3 → 1 (Full House)
- Row 4 / Column 4 → 3 (Naked Single)
- Row 4 / Column 7 → 5 (Full House)
- Row 5 / Column 5 → 9 (Full House)
- Row 7 / Column 4 → 4 (Full House)
- Row 8 / Column 5 → 6 (Naked Single)
- Row 7 / Column 5 → 3 (Full House)
- Row 3 / Column 5 → 4 (Full House)
- Row 8 / Column 3 → 4 (Full House)
- Hidden Pair: 1,2 in r3c89 => r3c89<>3, r3c89<>6, r3c8<>8
- Row 3 / Column 8 → 2 (Naked Single)
- Row 3 / Column 9 → 2 (Naked Single)
- Row 7 / Column 8 → 6 (Naked Single)
- Row 7 / Column 3 → 2 (Full House)
- Row 9 / Column 8 → 3 (Full House)
- Row 2 / Column 8 → 8 (Full House)
- Row 9 / Column 9 → 3 (Full House)
- Row 9 / Column 3 → 6 (Full House)
- Row 2 / Column 6 → 6 (Naked Single)
- Row 3 / Column 6 → 8 (Full House)
- Row 5 / Column 9 → 6 (Naked Single)
- Row 5 / Column 7 → 3 (Full House)
- Give Up: Don't know how to proceed!
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