Online Calcudoku Puzzles
Overview of the special puzzles
Monday
5x5 negative numbers
6x6 twin
7x7 from zero
7x7 ManyOp
Tuesday
6x6 pattern
8x8 bitwise OR
9x9 pattern
Wednesday
5x5 twin
7x7 subtraction only
8x8 twin
Thursday
5x5 twin
6x6 pattern
8x8 modulo
12x12
Friday
6x6 pattern
10x10 pattern
Saturday
6x6 pattern
8x8 pattern
8x8 from zero
Sunday
6x6 twin
8x8 pattern
12x12
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