Special Reversi description

The basic rules are the same as a normal Othello!
One difference is only events that are triggered at random !
Event , several in the current total
It replaced the stone of black-and-white ( first row , first column , all )
Random hindrance stone is placed ( not put in its place not tip over )
Random to put the stone ( place only )
Skip the event on the turn ( change to the next player )

All the stone in four !
Normal black , in addition to white , there is a blue and red stone
Support a definitive place red stone is a stone of turn player
Blue stone becomes hindrance stone , in the way of the game !