Sudoku Kuromasu - 200 Easy to Medium Puzzles 11x11 Volume 11 Paperback 1544180837 9781544180830 Dart Veider

<b>This is a Brand New book in excellent condition.</b><br><p></p><ul><li>Format: Paperback</li><li>Author: Dart Veider</li><li>ISBN10: 1544180837</li><li>ISBN13: 9781544180830</li></ul><br> <p><b>Kuromasu</b> from Japanese '<i>kuromasu wa doko da</i>', literally '<i>Where is Black Cells?</i>'; also known as '<i>Kurodoko</i>' is played on a rectangular grid. Some of these cells have numbers in them. Each cell may be either black or white. The object is to determine what type each cell is.<br> <br> The following rules determine which cells are which: <br> - Each number on the board represents the number of white cells that can be seen from that cell, including itself. A cell can be seen from another cell if they are in the same row or column, and there are no black cells between them in that row or column.<br> - Numbered cells may not be black.<br> - No two black cells may be horizontally or vertically adjacent.<br> - All the white cells must be connected horizontally or vertically.</p>