Roman's Lab: Volumes 1-100Roman Dzinzi's Mastering Chess series volumes 1 100 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 100 DVD Mastering Chess series is a must have for your chess library. If you're dangerous after watching a few, imagine what it