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Evil · Puzzle #847
2
5
7
3
3
8
9
8
6
5
7
2
5
1
4
2
8
7
9
6
1
1
2
6
7
"A mathematician is a device for turning coffee into theorems." — Paul Erdős
"A mathematician is a device for turning coffee into theorems." — Paul Erdős
The 4×4 mini-Sudoku is called 'Shidoku' and can be solved without any pencil marks — it's a common puzzle for children.
The 4×4 mini-Sudoku is called 'Shidoku' and can be solved without any pencil marks — it's a common puzzle for children.