Thursday, November 23, 2017
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Fill in the grid with the numbers 1-5, so that each number appears exactly once in each row and in each column. The numbers in the grid also...
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Write the letters A, B, C and D in the grid, so each letter appears exactly once in every row and in every column. Some of the cells will st...
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Fill in the grid with the numbers 1-5. Each number must appear exactly once in each row and in each column. There are two special cases we ...
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