Richard R Welford

English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6

Queen's Gambit Accepted: Old Variation

Benko Gambit Accepted: Modern Variation

Scotch Game: Classical Variation, Intermezzo Variation

Italian Game: Two Knights Defense, Max Lange Attack

Queen's Gambit Declined: Exchange Variation, Positional Variation

Grünfeld Defense: Three Knights Variation, Petrosian System