Ravenna Al, to me he is one of the greatest minds in our hobby when it comes to solitaire play, now I dont know all the guys that play this way so excuse me, but Al to me has built a reputation as a premier solitaire coach, how all of his teams are on an equal level, his O & D playcalling chart as well as his dice system clearly show his mind, skill and passion for solitaire EF/MF.