Solution for Evil Sudoku #2123675918496
1
6
8
9
9
3
7
1
2
1
3
8
2
9
7
4
5
4
6
1
9
2
6
3
This Sudoku Puzzle has 60 steps and it is solved using Hidden Single, Locked Pair, Naked Single, Locked Candidates Type 1 (Pointing), Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 3 / Column 6 → 1 (Hidden Single)
- Row 1 / Column 4 → 6 (Hidden Single)
- Row 2 / Column 9 → 9 (Hidden Single)
- Row 6 / Column 8 → 2 (Hidden Single)
- Row 8 / Column 3 → 1 (Hidden Single)
- Row 2 / Column 5 → 2 (Hidden Single)
- Row 9 / Column 6 → 3 (Hidden Single)
- Row 8 / Column 5 → 8 (Hidden Single)
- Row 1 / Column 6 → 8 (Hidden Single)
- Row 2 / Column 7 → 7 (Hidden Single)
- Row 2 / Column 8 → 3 (Hidden Single)
- Row 5 / Column 7 → 3 (Hidden Single)
- Row 4 / Column 5 → 3 (Hidden Single)
- Locked Pair: 4,8 in r9c78 => r9c13<>4, r7c79,r9c19<>8
- Row 9 / Column 9 → 7 (Naked Single)
- Locked Candidates Type 1 (Pointing): 4 in b5 => r4c23<>4
- Locked Pair: 7,8 in r46c2 => r178c2,r4c3,r6c1<>7, r6c1,r7c2<>8
- Row 8 / Column 2 → 4 (Naked Single)
- Row 7 / Column 1 → 8 (Hidden Single)
- Row 7 / Column 2 → 3 (Hidden Single)
- Row 1 / Column 2 → 2 (Naked Single)
- Row 1 / Column 9 → 5 (Naked Single)
- Row 1 / Column 7 → 4 (Naked Single)
- Row 5 / Column 9 → 6 (Naked Single)
- Row 7 / Column 9 → 1 (Naked Single)
- Row 1 / Column 3 → 7 (Naked Single)
- Row 1 / Column 1 → 3 (Full House)
- Row 3 / Column 8 → 8 (Naked Single)
- Row 9 / Column 7 → 8 (Naked Single)
- Row 5 / Column 5 → 5 (Naked Single)
- Row 6 / Column 5 → 6 (Full House)
- Row 4 / Column 9 → 8 (Naked Single)
- Row 3 / Column 9 → 2 (Full House)
- Row 3 / Column 7 → 6 (Full House)
- Row 7 / Column 7 → 5 (Naked Single)
- Row 9 / Column 8 → 4 (Full House)
- Row 4 / Column 8 → 5 (Full House)
- Row 6 / Column 7 → 1 (Full House)
- Row 7 / Column 3 → 2 (Naked Single)
- Row 7 / Column 4 → 7 (Full House)
- Row 4 / Column 2 → 7 (Naked Single)
- Row 6 / Column 2 → 8 (Full House)
- Row 4 / Column 3 → 6 (Naked Single)
- Row 6 / Column 4 → 9 (Naked Single)
- Row 4 / Column 6 → 4 (Naked Single)
- Row 4 / Column 4 → 1 (Full House)
- Row 6 / Column 6 → 7 (Full House)
- Row 6 / Column 1 → 5 (Full House)
- Row 9 / Column 3 → 9 (Naked Single)
- Row 8 / Column 4 → 5 (Naked Single)
- Row 9 / Column 4 → 2 (Naked Single)
- Row 9 / Column 1 → 6 (Full House)
- Row 8 / Column 1 → 7 (Full House)
- Row 2 / Column 4 → 4 (Full House)
- Row 2 / Column 6 → 5 (Full House)
- Row 8 / Column 6 → 9 (Full House)
- Row 3 / Column 1 → 4 (Naked Single)
- Row 3 / Column 3 → 5 (Full House)
- Row 5 / Column 3 → 4 (Full House)
- Row 5 / Column 1 → 9 (Full House)
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