# Latin Squares

The applet below offers you two problems: one simple and one less simple. In the simple one, you are requested to arrange numbers in a square matrix so as to have every number just once in every row and every column. The second problem imposes one additional condition: the arrangement must be symmetric with respect to the main diagonal (the one from the North-West to the South-East corner.)

There are two ways to manipulate rows of the matrix:

- You can cycle rows left or right by clicking just outside the matrix
- You can swap two squares in the same row by clicking first on one and then the other

What if applet does not run? |

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