Logic Masters Deutschland e.V.

City of Nomura

Rules:

1. All digits 1-9 must appear exactly once in each row, column, and 3x3 box region (Sudoku)/p>

2. Along lavender zipper lines, each pair of digits equidistant from its center must sum to the same total (Zipper Lines)/p>

3. Digits outside the grid are skyscraper clues that indicate the number of digits in that row/column that you can "see" and are blocking the view of smaller digits along that line of sight (Skyscrapers)/p>

F-Puzzles :

Sudokupad :