Among our crosswords and other puzzles, we’re featuring logic challenges from Puzzle Communication Nikoli, a cult-favorite puzzle publication from Japan. A PDF of the puzzle, as well as the solution, can be downloaded below. One of the biggest challenges of designing puzzles for Puzzle Communication Nikoli, Japan’s supremely influential puzzle magazine, is difficulty. All of Nikoli’s puzzles—most of which are designed and refined by the magazine’s dedicated readers—must scale well in difficulty. For a puzzle to gain popularity, a creator must come up with simple rules that can be used…