Logic Puzzles


Each cell in an outlined block must contain a digit: a two-cell block contains the digits 1 and 2, a three-cell block contains the digits 1, 2 and 3; and so on. No same digit appears in neighbouring cells, not even diagonally.

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1. Complete the grid with zeros and ones until there are just as many zeros and ones in every row and every column.

2. No more than two of the same number can be next to or under each other.

3. Rows or columns with exactly the same content are not allowed.

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Matchstick Puzzles