Logic Masters Deutschland e.V.

PLAY HERE: CTC

Place the digits from 1 to 9 once each in every row, column, and box. Every 2x2 area must contain at least one digit of every residue class of 3, i.e. of the groups 147, 258 and 369.

Digits along a thermometer must strictly increase from the bulb end.

Killer Cages: The numbers in a cage sum to the number given in the top left corner of the cage.

Dutch Whisper Lines: Adjacent digits on orange lines must have a difference of at least 4.

Digits seperated by a dot must be consecutive. Not all dots are necessarily given.

The given 6 in R7C2 must be bigger than its orthogonally adjacent neighbors.