Logic Masters Deutschland e.V.

Warning: This puzzle is a little tricky! Read the rules carefully.

Place a digit in each cell without repeats in any row, column, or 3x3 box.
Digits in killer cages sum to the value given in the corner.
Digits on black kropki dots share a ratio of 1:2.
Digits along thermometers must increase from bulb to tip.
White rectangles are X or V clues, the digits sharing that edge sum to 5 or 10.

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If you find yourself confused, perhaps try out this example puzzle until you are no longer confused.