Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

Gray line: Each gray line must satisfy one of the 2 types: German Wispers (Adjacent two digits along the line must differ by ≥5) or Renban (Digits on the line must form a sequence of consecutive digits without repeats, order isn't limited), 3 lines for each type.

One-cell cage: Determine a region consisting of a series of orthogonally connected cells which includes the cage cell. The cage cell indicates the size of the region and the region must include the digit of clue number. (Like: cage-11 includes double 1 and cage-14 includes 1 and 4) Digits in the region must sum to that clue number. Regions cannot overlap. Each digits can repeat at most twice in the same region.

example:1+4+5+6=16, 16 consists of 1 and 6, so the region requires putting 1 and 6, and the size of the region is 4 so the cage cell is 4.

Quadruple: Circled digits where four cells meet must be present as values in those four cells. (Note that double 1 is required for Quadruple-114.)

Links: f-puzzles | CTC

这么臭的题目还有必要做吗