Roman's Lab: Volumes 1-117Do you want all the Roman's Lab DVD's so far? Here they are in one convenient place! Roman Dzinzi's Mastering Chess series volumes 1 117 on DVD is guaranteed to improve your chess ability, help you win more games, and send your rating up! You'll retain more than 70% than reading a chess book. Private lessons from Grandmaster Roman Dzinzi, renowned author and champion, cover all areas of chess instruction. The 117 DVD Mastering Chess series is a must