Instructions
Hitori is sort of like "reverse Sudoku." The object is to eliminate cells in the grid
until there are no duplicate numbers in any row or column. To eliminate a cell, it must
be turned black by clicking on it. However, you may not place any black cells next to
each other on a side (touching diagonally is okay). Finally, all white cells must be
fully "connected" horizontally and/or vertically; no white cell(s) on the board can be
"cut off" from the rest of the white cells. You can also mark cells in this game as
"circled" (meaning "known to be white") by clicking a second time. This is just for
your own visual reference as these cells count as white cells. This can be useful to visually
mark the cells you know cannot be black. "Circled" cells appear with a light green background color.
When you think you have solved the puzzle, click on 'Check' to see if you've solved the
puzzle correctly. Have fun!
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