Solution for Evil Sudoku #2256412987344
2
3
5
7
9
4
9
1
2
7
3
5
7
1
1
6
7
1
4
2
5
8
1
7
3
6
2
4
3
8
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 1 / Column 5 → 5 (Naked Single)
- Row 9 / Column 5 → 4 (Naked Single)
- Row 5 / Column 5 → 3 (Full House)
- Row 3 / Column 4 → 3 (Hidden Single)
- Row 1 / Column 8 → 7 (Hidden Single)
- Row 6 / Column 4 → 7 (Hidden Single)
- Row 2 / Column 9 → 4 (Hidden Single)
- Row 8 / Column 1 → 5 (Hidden Single)
- Row 7 / Column 6 → 2 (Hidden Single)
- Row 1 / Column 9 → 9 (Hidden Single)
- Row 7 / Column 9 → 1 (Naked Single)
- Row 2 / Column 8 → 2 (Hidden Single)
- Row 3 / Column 7 → 1 (Hidden Single)
- Row 9 / Column 2 → 1 (Hidden Single)
- Row 1 / Column 3 → 1 (Hidden Single)
- Naked Pair: 6,8 in r18c2 => r4c2<>6, r46c2<>8
- X-Wing: 6 c26 r18 => r8c3<>6
- X-Wing: 6 c39 r35 => r35c1,r5c7<>6
- Hidden Rectangle: 7/9 in r7c17,r9c17 => r9c1<>9
- XY-Chain: 8 8- r1c2 -6- r1c6 -8- r2c4 -6- r9c4 -9- r9c8 -5- r3c8 -8 => r3c13<>8
- Row 3 / Column 1 → 4 (Naked Single)
- Row 3 / Column 3 → 6 (Naked Single)
- Row 1 / Column 2 → 8 (Full House)
- Row 1 / Column 6 → 6 (Full House)
- Row 2 / Column 4 → 8 (Full House)
- Row 2 / Column 7 → 6 (Full House)
- Row 3 / Column 9 → 5 (Naked Single)
- Row 3 / Column 8 → 8 (Full House)
- Row 8 / Column 2 → 6 (Naked Single)
- Row 8 / Column 6 → 9 (Naked Single)
- Row 8 / Column 3 → 8 (Full House)
- Row 9 / Column 4 → 6 (Full House)
- Row 6 / Column 9 → 2 (Naked Single)
- Row 5 / Column 9 → 6 (Full House)
- Row 9 / Column 1 → 7 (Naked Single)
- Row 6 / Column 2 → 3 (Naked Single)
- Row 7 / Column 1 → 9 (Naked Single)
- Row 6 / Column 3 → 9 (Naked Single)
- Row 7 / Column 2 → 4 (Naked Single)
- Row 4 / Column 2 → 2 (Full House)
- Row 7 / Column 3 → 3 (Full House)
- Row 7 / Column 7 → 7 (Full House)
- Row 5 / Column 3 → 4 (Full House)
- Row 5 / Column 1 → 8 (Naked Single)
- Row 4 / Column 1 → 6 (Full House)
- Row 6 / Column 8 → 5 (Naked Single)
- Row 6 / Column 6 → 8 (Full House)
- Row 4 / Column 4 → 9 (Naked Single)
- Row 5 / Column 4 → 2 (Full House)
- Row 5 / Column 6 → 5 (Naked Single)
- Row 5 / Column 7 → 9 (Full House)
- Row 4 / Column 6 → 4 (Full House)
- Row 9 / Column 8 → 9 (Naked Single)
- Row 4 / Column 8 → 3 (Full House)
- Row 4 / Column 7 → 8 (Full House)
- Row 9 / Column 7 → 5 (Full House)
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