Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

Echo Lines: Indigo lines are filled with a repeating sequence of one or more different digits. The full sequence must appear at least twice along the line and must always repeat in its entirety. Different lines may contain different sequences.

Cages: Each cage is either a killer cage or a look-and-say cage. No cage may be both.

Killer Cages: Digits in a killer cage may not repeat and must sum to the given total.

Look-and-Say Cages: Reading the clue one digit at a time gives the partial composition of the cage (i.e. "1223" means the cage contains exactly one 2 and exactly two 3s, in addition to any other digits that may appear). Digits may repeat in look-and-say cages if permitted by other rules.

Kropki Dots: Digits separated by a white dot must be consecutive.

Play on SudokuPad