Download or read book Sudoku Heyawake - 200 Master Puzzles 14x14 written by Dart Veider and published by Createspace Independent Publishing Platform. This book was released on 2018-10-22 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heyawake (from Japanese, "divided rooms") is played on a rectangular grid. The grid is divided into rectangular "rooms". Some rooms may contain a single number. These rooms must have the designated number of cells painted black. Other rooms may have zero or more cells painted black. Black cells must not be orthogonally connected. All white cells must be interconnected. A line of connected white cells must not connect more than two rooms together.