bug fixed.
Classic board game "Reversi"
"Reversi" , put the black and white of the stone alternately to the board of 8X8, it is a board game that compete for victory or defeat in the final number of colors.
* Bat first is black, rear attack is the stone of white.
* When you place your stone so as to sandwich the opponent's stone, you can the opponent's stones in my color.
* Stone, can not put it only so as to sandwich the color. (If you do not put anywhere it will be in the path)
* When the board is filled, is a win is more number of stone often.
