Logic Masters Deutschland e.V.

Rules:

• Normal 6x6 sudoku rules apply:
  In every row, column and in every 3x2 box the digits from 1 to 6 have to appear atleast once.
• Thermometers:
  Digits on a thermometer strictly increase from the bulb to the tip.
• German whisper lines:
  Two cells connected by a (green)German whisper line must have a difference of at least 3.
• Dutch whisper lines:
  Two cells connected by a (orange)Dutch whisper line must have a difference of at least 2.
• Sandwich sum:
  Clues on the edge of the grid show the sum of the digits sandwiched between the 1 and the 6 in that row or column.

Play the puzzle here online:

Sirxemic’s Sudokumaker

Sven's Sudokupad

Have fun and leave a nice message :D.