Solution for Evil Sudoku #2174982163544
3
7
1
8
4
9
2
6
5
8
6
4
5
3
2
1
9
7
9
5
2
1
7
6
4
3
8
4
8
7
9
3
6
5
1
2
3
2
1
4
5
8
6
7
9
5
6
9
2
1
7
3
8
4
7
2
3
1
9
4
6
5
8
9
1
6
7
8
5
2
4
3
8
4
5
6
2
3
7
9
1
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 → 9 (Naked Single)
- Row 5 / Column 9 → 7 (Naked Single)
- Row 5 / Column 5 → 5 (Full House)
- Row 6 / Column 3 → 2 (Hidden Single)
- Row 4 / Column 7 → 5 (Hidden Single)
- Row 9 / Column 8 → 9 (Hidden Single)
- Row 1 / Column 2 → 7 (Hidden Single)
- Row 4 / Column 4 → 3 (Hidden Single)
- Row 8 / Column 9 → 3 (Hidden Single)
- Row 8 / Column 8 → 2 (Hidden Single)
- Row 9 / Column 9 → 1 (Hidden Single)
- Row 9 / Column 3 → 8 (Naked Single)
- Row 2 / Column 1 → 8 (Hidden Single)
- Row 7 / Column 7 → 8 (Hidden Single)
- Row 3 / Column 9 → 8 (Hidden Single)
- Naked Pair: 4,6 in r2c29 => r2c46<>6, r2c6<>4
- X-Wing: 4 r26 c29 => r3c2<>4
- X-Wing: 4 r39 c57 => r1c57,r7c5<>4
- Hidden Rectangle: 1/3 in r1c13,r7c13 => r1c1<>1
- XY-Chain: 6 6- r2c9 -4- r6c9 -6- r4c8 -4- r4c1 -1- r8c1 -7- r8c7 -6 => r13c7<>6
- Row 1 / Column 7 → 9 (Naked Single)
- Row 3 / Column 7 → 4 (Naked Single)
- Row 2 / Column 9 → 6 (Full House)
- Row 6 / Column 9 → 4 (Full House)
- Row 4 / Column 8 → 6 (Full House)
- Row 7 / Column 8 → 4 (Full House)
- Row 9 / Column 7 → 7 (Naked Single)
- Row 8 / Column 7 → 6 (Full House)
- Row 2 / Column 2 → 4 (Naked Single)
- Row 6 / Column 2 → 1 (Naked Single)
- Row 3 / Column 2 → 6 (Full House)
- Row 4 / Column 1 → 4 (Full House)
- Row 9 / Column 4 → 2 (Naked Single)
- Row 9 / Column 5 → 4 (Full House)
- Row 1 / Column 1 → 3 (Naked Single)
- Row 2 / Column 4 → 5 (Naked Single)
- Row 1 / Column 3 → 1 (Naked Single)
- Row 2 / Column 3 → 9 (Naked Single)
- Row 2 / Column 6 → 2 (Full House)
- Row 3 / Column 3 → 5 (Full House)
- Row 7 / Column 3 → 3 (Full House)
- Row 3 / Column 4 → 1 (Naked Single)
- Row 3 / Column 5 → 9 (Full House)
- Row 1 / Column 5 → 6 (Naked Single)
- Row 1 / Column 6 → 4 (Full House)
- Row 4 / Column 6 → 1 (Naked Single)
- Row 4 / Column 5 → 2 (Full House)
- Row 8 / Column 4 → 7 (Naked Single)
- Row 6 / Column 4 → 6 (Full House)
- Row 6 / Column 5 → 7 (Naked Single)
- Row 7 / Column 5 → 1 (Full House)
- Row 6 / Column 6 → 9 (Full House)
- Row 7 / Column 6 → 6 (Naked Single)
- Row 8 / Column 6 → 5 (Full House)
- Row 8 / Column 1 → 1 (Full House)
- Row 7 / Column 1 → 7 (Full House)
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