Logic Masters Deutschland e.V.

Space Invader

Play on

CTC app

• Normal Sudoku rules apply.
• Region Sum Lines: Box borders divide blue lines into segments. Digits on each segment have the same total. Different lines may have different totals.
• German Whispers: Along a green German Whispers line, consecutive digits are at least 5 apart.
• Ratio Kropki: Where two digits are separated by a black dot, one is double the other.

There is a great and growing collection of puzzles, setters and solvers on Sudokubank. Hope to see you there.