Logic Masters Deutschland e.V.

• The digits 1-8 must appear in each row, column and region.
• Regions need to be determined.
  The regions come in exactly two shapes which may be rotated or mirrored.
• Digits along a grey line increase from the bulb end and do not repeat.
• For thin grey lines the end with bulb needs to be determined.
• Cells separated by a knights move must contain different digits.

Hint: Two cells across a border have different parity

Link to CTC-App
You may want to turn off the Conflict-Checker in the settings