Logic Masters Deutschland e.V.

Normal Sudoku rules apply and all variants are standard.

Place the digits 1-9 once each in every row, column and box.

Killer: Digits in a cage cannot repeat and sum to the number in the top-left corner.

Thermo: Along thermometres digits much increase from the bulb.

Arrows: Digits along an arrow sum to the number in the connected circle. Digits may repeat along an arrow if allowed by other rules.

Kropki: Digits separated by a white dot much be consecutive. Not all white dots are necessarily given.

X Sums: Digits separated by an X sum to 10. Not all X's are necessarily given.

Play the puzzle on Sudoku Pad.