Logic Masters Deutschland e.V.

Place the digits 1-8 once and only once in every box, row and column (use the central place markers).

The resulting NUMBERS (not digits) in each cell must be all different and must add up to the same sum in each box, column, row and diagonal and this sum should be the minimal possible.

The NUMBERS joined by a black dot are in the ratio of 1:2 and the NUMBERS on the thermometers increase from the bulb end.

To check when finished make the last digit in each cell that cell's number.

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