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Medium · Puzzle #826
7
2
6
3
4
6
3
9
4
9
5
6
1
4
2
9
7
2
1
6
8
6
8
1
7
4
9
4
5
6
8
Irregular Sudoku (also called Squiggly Sudoku) uses non-rectangular regions instead of 3×3 boxes, requiring different solving strategies.
Irregular Sudoku (also called Squiggly Sudoku) uses non-rectangular regions instead of 3×3 boxes, requiring different solving strategies.
Keep a mental note of which digits are 'almost placed' — appearing 8 times on the board. One more elimination will solve them.
Keep a mental note of which digits are 'almost placed' — appearing 8 times on the board. One more elimination will solve them.