Jim Patrick Guyer grew up in Crawford County, Illinois. He has authored several books and is the inventor of Diamond Chess (http://DiamondChess.net). He currently resides in Jackso...показать большеJim Patrick Guyer grew up in Crawford County, Illinois. He has authored several books and is the inventor of Diamond Chess (http://DiamondChess.net). He currently resides in Jacksonville. Florida.показать меньше