Information last updated on August 30, 2023.Set's name: "chessm21o"
Parent set: cloneof="chessm"
MAME's description: The ChessMachine (v2.1, Gideon v1.7)
ROM name="chessm21o_disk1.img" size="737280" crc="79005b25" sha1="2a7cc406dd1fbf0b351a117c8a092069a33dbdc3"
ROM name="chessm21_option1.img" size="737280" crc="cba1616e" sha1="d773fbf810957c419d63cd4abb8466651ff1a832"