Kuromasu: Sudoku Kuromasu - 200 Normal Puzzles 10x10 (Volume 36) (Series #36) (Paperback)

<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.<br> Some of these cells have numbers in them.<br> Each cell may be either black or white.<br> The object is to determine what type each cell is. <p> The following rules determine which cells are which: </p><p> 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>