Logic Masters Deutschland e.V.

This was part of a Setting Competition held in 2024/2025. The Skunkworks League was hosted by @damasosos92.
The competition took place in a total of 7 turns with a unique prompt for each round. Setter's had to create and test a unique puzzle for each prompt solely by themselves.

As of the prompt for Turn 1 of TSL the goal was to create a 9x9 sudoku puzzle using the given lines. No additional clues inside of the grid were allowed (apart from givens).


Normal Sudoku rules apply.

German Whisper:
Digits along a green line must differ by at least 5.

Sum-to-five:
Clues outside of the grid give the sum of all digits before the digit '5' appears in that respective row/column.

Global Polarity Mirror:
For each row and column the digits mirrored across the middle (row/column 5) have to change polarity (high/low).
E.g. if r1c1 is a low digit (12345) both r1c9 and r9c1 have to be high digits (56789).

Each '5' can act as both low or high, even at the same time.
The given '1' is exempted from this rule (meaning r8c6 and r2c4 may be low digits as well).

Solve online






Really like these lines? You can find more puzzles set for this competition here.