Solution for Evil Sudoku #1375164938295
1
6
2
7
1
5
2
6
8
6
5
9
1
3
2
4
8
3
8
9
6
4
7
1
7
4
This Sudoku Puzzle has 62 steps and it is solved using Naked Single, Full House, Hidden Single, Locked Pair, Locked Triple, Locked Candidates Type 1 (Pointing) techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 4 / Column 4 → 6 (Naked Single)
- Row 4 / Column 6 → 5 (Naked Single)
- Row 6 / Column 4 → 8 (Naked Single)
- Row 6 / Column 6 → 4 (Naked Single)
- Row 5 / Column 5 → 7 (Full House)
- Row 1 / Column 5 → 6 (Hidden Single)
- Row 1 / Column 3 → 8 (Hidden Single)
- Row 6 / Column 7 → 6 (Hidden Single)
- Row 7 / Column 5 → 8 (Hidden Single)
- Locked Pair: 3,4 in r23c5 => r2c4,r89c5<>3
- Locked Triple: 5,6,9 in r789c8 => r2c8,r89c9,r9c7<>5, r23c8,r8c9<>9
- Locked Candidates Type 1 (Pointing): 5 in b1 => r78c2<>5
- Locked Candidates Type 1 (Pointing): 9 in b1 => r5c1<>9
- Locked Candidates Type 1 (Pointing): 2 in b4 => r79c1<>2
- Locked Candidates Type 1 (Pointing): 7 in b6 => r4c13<>7
- Row 4 / Column 3 → 3 (Naked Single)
- Row 2 / Column 1 → 7 (Hidden Single)
- Row 2 / Column 8 → 4 (Naked Single)
- Row 2 / Column 5 → 3 (Naked Single)
- Row 2 / Column 2 → 5 (Naked Single)
- Row 3 / Column 5 → 4 (Naked Single)
- Row 3 / Column 2 → 3 (Naked Single)
- Row 1 / Column 2 → 4 (Naked Single)
- Row 1 / Column 1 → 9 (Full House)
- Row 7 / Column 2 → 2 (Naked Single)
- Locked Candidates Type 1 (Pointing): 2 in b8 => r8c9<>2
- Row 8 / Column 9 → 3 (Naked Single)
- Row 1 / Column 9 → 5 (Naked Single)
- Row 1 / Column 7 → 3 (Full House)
- Row 7 / Column 4 → 3 (Hidden Single)
- Row 7 / Column 1 → 4 (Naked Single)
- Row 5 / Column 1 → 2 (Naked Single)
- Row 7 / Column 3 → 5 (Naked Single)
- Row 7 / Column 8 → 9 (Full House)
- Row 4 / Column 1 → 1 (Naked Single)
- Row 9 / Column 1 → 3 (Full House)
- Row 5 / Column 9 → 9 (Naked Single)
- Row 9 / Column 3 → 6 (Naked Single)
- Row 4 / Column 8 → 7 (Naked Single)
- Row 4 / Column 7 → 2 (Full House)
- Row 6 / Column 2 → 7 (Naked Single)
- Row 8 / Column 2 → 1 (Full House)
- Row 8 / Column 3 → 7 (Full House)
- Row 5 / Column 3 → 4 (Naked Single)
- Row 5 / Column 7 → 5 (Full House)
- Row 6 / Column 9 → 1 (Full House)
- Row 6 / Column 3 → 9 (Full House)
- Row 9 / Column 8 → 5 (Naked Single)
- Row 3 / Column 8 → 1 (Naked Single)
- Row 8 / Column 8 → 6 (Full House)
- Row 9 / Column 7 → 8 (Naked Single)
- Row 9 / Column 9 → 2 (Full House)
- Row 3 / Column 9 → 8 (Full House)
- Row 9 / Column 5 → 1 (Full House)
- Row 8 / Column 5 → 5 (Full House)
- Row 2 / Column 7 → 9 (Naked Single)
- Row 3 / Column 7 → 7 (Full House)
- Row 3 / Column 6 → 9 (Full House)
- Row 2 / Column 4 → 2 (Naked Single)
- Row 2 / Column 6 → 8 (Full House)
- Row 8 / Column 6 → 2 (Full House)
- Row 8 / Column 4 → 9 (Full House)
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