Logic Masters Deutschland e.V.

The Rules:

• Normal Sudoku rules apply.
• Clues outside the grid are both sandwich and numbered rooms clues.
• Numbered rooms: clues indicate the digit which has to be placed in the Nth cell in the corresponding direction, where N is the digit placed in the first cell in that direction.
• Sandwich: clues indicate the total of the digits between the 1 and the 9 in the corresponding row or column.
• Digits between white dots must be consecutive - not all white dots are given.
  Where's my sandwich?

  by Chilly

  

  Link for solving on Sudokupad