Solution for Evil Sudoku #1185713524895
3
8
7
8
3
1
5
4
2
4
3
8
2
7
5
5
1
4
1
8
5
7
8
8
1
7
This Sudoku Puzzle has 61 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Triple, Naked Single, Locked Pair, Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 3 / Column 2 → 5 (Hidden Single)
- Row 2 / Column 4 → 5 (Hidden Single)
- Row 2 / Column 8 → 8 (Hidden Single)
- Row 9 / Column 5 → 1 (Hidden Single)
- Row 9 / Column 7 → 4 (Hidden Single)
- Row 8 / Column 3 → 5 (Hidden Single)
- Row 2 / Column 5 → 7 (Hidden Single)
- Row 4 / Column 8 → 7 (Hidden Single)
- Row 1 / Column 9 → 7 (Hidden Single)
- Row 5 / Column 1 → 5 (Hidden Single)
- Row 7 / Column 1 → 7 (Hidden Single)
- Row 6 / Column 2 → 7 (Hidden Single)
- Row 1 / Column 1 → 4 (Hidden Single)
- Row 7 / Column 3 → 4 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 1 in b4 => r1c3<>1
- Locked Candidates Type 1 (Pointing): 2 in b7 => r9c89<>2
- Locked Candidates Type 2 (Claiming): 3 in r9 => r78c8,r8c9<>3
- Naked Triple: 2,6,9 in r78c8,r8c9 => r9c89<>6, r9c89<>9
- Row 9 / Column 8 → 3 (Naked Single)
- Row 9 / Column 9 → 3 (Naked Single)
- Row 3 / Column 7 → 3 (Hidden Single)
- Row 4 / Column 4 → 3 (Hidden Single)
- Row 4 / Column 6 → 4 (Hidden Single)
- Row 8 / Column 4 → 4 (Hidden Single)
- Row 3 / Column 5 → 4 (Hidden Single)
- Row 4 / Column 3 → 1 (Hidden Single)
- Row 6 / Column 6 → 1 (Hidden Single)
- Locked Pair: 6,9 in r45c7 => r126c7,r56c9<>6, r126c7,r56c9<>9
- Row 6 / Column 7 → 2 (Naked Single)
- Row 5 / Column 9 → 8 (Naked Single)
- Row 1 / Column 7 → 1 (Naked Single)
- Row 2 / Column 7 → 1 (Naked Single)
- Row 6 / Column 9 → 8 (Naked Single)
- Locked Pair: 6,9 in r12c2 => r1c3,r2c1,r78c2<>6, r1c3,r2c1,r78c2<>9
- Row 7 / Column 2 → 3 (Naked Single)
- Row 8 / Column 2 → 3 (Naked Single)
- Row 1 / Column 3 → 2 (Naked Single)
- Row 2 / Column 1 → 2 (Naked Single)
- Row 3 / Column 6 → 2 (Hidden Single)
- Row 8 / Column 9 → 2 (Hidden Single)
- Row 7 / Column 5 → 2 (Hidden Single)
- Row 3 / Column 9 → 6 (Hidden Single)
- Row 3 / Column 8 → 9 (Full House)
- Row 7 / Column 8 → 6 (Full House)
- Row 8 / Column 8 → 6 (Full House)
- Row 7 / Column 4 → 9 (Full House)
- Row 8 / Column 5 → 9 (Full House)
- Row 8 / Column 6 → 9 (Full House)
- Row 6 / Column 4 → 6 (Full House)
- Row 1 / Column 5 → 6 (Full House)
- Row 5 / Column 5 → 6 (Full House)
- Row 2 / Column 6 → 6 (Full House)
- Row 1 / Column 2 → 9 (Full House)
- Row 6 / Column 3 → 9 (Naked Single)
- Row 5 / Column 3 → 9 (Naked Single)
- Row 5 / Column 7 → 9 (Naked Single)
- Row 4 / Column 1 → 6 (Full House)
- Row 4 / Column 7 → 6 (Full House)
- Row 2 / Column 2 → 9 (Naked Single)
- Row 9 / Column 3 → 6 (Naked Single)
- Row 9 / Column 1 → 9 (Naked Single)
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