Solution for Evil Sudoku #3151674983244
2
3
7
6
2
8
1
6
4
7
3
9
4
6
7
1
2
8
3
5
7
3
5
9
4
2
5
3
7
4
This Sudoku Puzzle has 56 steps and it is solved using Naked Single, Full House, Hidden Single, Naked Pair, undefined, Hidden Rectangle techniques.
Try To Solve This PuzzleSolution Steps:
- Row 5 / Column 1 → 5 (Naked Single)
- Row 5 / Column 9 → 6 (Naked Single)
- Row 5 / Column 5 → 2 (Full House)
- Row 2 / Column 1 → 3 (Hidden Single)
- Row 4 / Column 7 → 4 (Hidden Single)
- Row 9 / Column 8 → 5 (Hidden Single)
- Row 6 / Column 6 → 3 (Hidden Single)
- Row 6 / Column 3 → 2 (Hidden Single)
- Row 1 / Column 2 → 6 (Hidden Single)
- Row 1 / Column 1 → 9 (Hidden Single)
- Row 1 / Column 7 → 7 (Naked Single)
- Row 2 / Column 2 → 4 (Hidden Single)
- Row 3 / Column 3 → 7 (Hidden Single)
- Row 8 / Column 9 → 7 (Hidden Single)
- Row 7 / Column 1 → 7 (Hidden Single)
- Naked Pair: 1,8 in r8c18 => r8c4<>1, r8c46<>8
- X-Wing: 1 r48 c18 => r7c8<>1
- X-Wing: 1 r17 c35 => r39c5,r9c3<>1
- Hidden Rectangle: 3/9 in r3c79,r9c79 => r9c9<>9
- XY-Chain: 1 1- r4c1 -8- r6c2 -1- r3c2 -8- r2c3 -5- r2c9 -9- r6c9 -1 => r4c8,r6c2<>1
- Row 4 / Column 8 → 9 (Naked Single)
- Row 6 / Column 9 → 1 (Full House)
- Row 6 / Column 2 → 8 (Naked Single)
- Row 3 / Column 2 → 1 (Full House)
- Row 4 / Column 1 → 1 (Full House)
- Row 8 / Column 1 → 8 (Full House)
- Row 7 / Column 8 → 8 (Naked Single)
- Row 8 / Column 8 → 1 (Full House)
- Row 9 / Column 9 → 3 (Naked Single)
- Row 1 / Column 3 → 5 (Naked Single)
- Row 2 / Column 3 → 8 (Full House)
- Row 9 / Column 3 → 6 (Naked Single)
- Row 7 / Column 3 → 1 (Full House)
- Row 1 / Column 6 → 4 (Naked Single)
- Row 1 / Column 5 → 1 (Full House)
- Row 9 / Column 7 → 9 (Naked Single)
- Row 8 / Column 6 → 2 (Naked Single)
- Row 3 / Column 7 → 3 (Naked Single)
- Row 9 / Column 5 → 8 (Naked Single)
- Row 9 / Column 4 → 1 (Full House)
- Row 7 / Column 6 → 9 (Naked Single)
- Row 8 / Column 7 → 6 (Naked Single)
- Row 7 / Column 7 → 2 (Full House)
- Row 7 / Column 5 → 6 (Full House)
- Row 8 / Column 4 → 4 (Full House)
- Row 2 / Column 6 → 5 (Naked Single)
- Row 4 / Column 6 → 8 (Full House)
- Row 4 / Column 5 → 5 (Naked Single)
- Row 4 / Column 4 → 6 (Full House)
- Row 6 / Column 4 → 9 (Naked Single)
- Row 6 / Column 5 → 4 (Full House)
- Row 3 / Column 5 → 9 (Full House)
- Row 2 / Column 9 → 9 (Naked Single)
- Row 2 / Column 4 → 2 (Full House)
- Row 3 / Column 4 → 8 (Full House)
- Row 3 / Column 9 → 5 (Full House)
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