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It looks like sudoku, but it’s a test of arithmetic rather than a pattern puzzle.

Each vertical and horizontal line has to contain the numbers 1-6. The numbers in each heavily outlined set of squares, called cages, must produce the number in the top corner. For example, 9x means the numbers multiply to equal 9.

TIP: Numbers can be repeated in a cage, as long as they are not in the same line or row.