Y
Yakov Estrin
5 works on record
Works

The Gruenfeld defence
1980
Open Games
Open Games
The Two Knights Defence (Batsford Library of Tournament Openings)
The Two Knights Defence (Batsford Library of Tournament Openings)
Three Double King Pawn Openings
Three Double King Pawn Openings
Wilkes-Barre Variation, Two Knights Defense
Wilkes-Barre Variation, Two Knights Defense