Logic Masters Deutschland e.V.

Normal sudoku rules apply. Digits in cells connected by a black dot are in the ration 2:1. Digits in cells connected by an X sum to 10. If a cell is colored and one of the constraints apply (black dot or X), then the symbol must be there. Cells that are a king's move apart in chess cannot contain the same digit. The colored cells are the prime factors of two different numbers (connected cells are meant to be read as two-digit numbers). Boths numbers divided by 1000000 are coordinates to the third location; red is latitude and blue is longitude.
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