Logic Masters Deutschland e.V.

Sudoku: Each digit, 1-9, appears exactly once in each row, column, and 3x3 region.

Renban: Each pink line constrains a set of consecutive, non-repeating digits, in any order.

Sandwich: digits outside the grid indicate the sum of all the digits sandwiched between the 1 and 9 in the town or column.

Puzzle Link