Logic Masters Deutschland e.V.

Flight of the Firefly is a no-givens variant Sudoku using German Whispers, Renban lines, and complete Kropki dots.

Sudoku:
Place the digits 1–9 in every row, column, and 3×3 box, with no repeats.

German Whispers:
Adjacent digits along each green line must differ by at least 5.

Renban Lines:
Digits along each pink line must form a set of consecutive, non-repeating digits in any order.

Kropki Dots:
Digits separated by a white dot are consecutive.
Digits separated by a black dot are in a 1:2 ratio.
All possible Kropki dots are given. Therefore, orthogonally adjacent cells without a dot are neither consecutive nor in a 1:2 ratio.

There are no given digits.

Play online:
Solve in SudokuPad

I hope you enjoy it!

More puzzles by me can be found at UncleLogic.com.