r1 D Keller vs G Tringov, 1955  (E76) King's Indian, Four Pawns Attack, 42 moves, 0-1 r2 G Tringov vs L Hallstrom, 1955  (B56) Sicilian, 20 moves, 1-0 r6 Spassky vs G Tringov, 1955  (C77) Ruy Lopez, 49 moves, 1-0 r4 K W Lloyd vs M Vanhoorne, 1955 (E26) Nimzo-Indian, Samisch, 47 moves, 1-0 r5 J van Oosterom vs G Tringov, 1955 (E59) Nimzo-Indian, 4.e3, Main line, 41 moves, 1/2-1/2 r6 K W Lloyd vs J S Purdy, 1955  (D22) Queen's Gambit Accepted, 41 moves, 1-0 r7 G Tringov vs S Johannessen, 1955 (B10) Caro-Kann, 39 moves, 1-0 r8 K W Lloyd vs M Donia, 1955 (D10) Queen's Gambit Declined Slav, 70 moves, 1-0 r9 G Tringov vs E Mednis, 1955 (C18) French, Winawer, 28 moves, 1/2-1/2 r5 Portisch vs S Johannessen, 1955 (B10) Caro-Kann, 35 moves, 1-0 r4 G Tringov vs Portisch, 1955 (B88) Sicilian, Fischer-Sozin Attack, 63 moves, 1/2-1/2 r8 S Schweber vs G Tringov, 1955 (E64) King's Indian, Fianchetto, Yugoslav System, 89 moves, 1/2-1/2 r3 M Farre vs G Tringov, 1955 (B95) Sicilian, Najdorf, 6...e6, 36 moves, 1-0 r7 Portisch vs E Mednis, 1955 (A40) Queen's Pawn Game, 50 moves, 1/2-1/2 r2 S Schweber vs E Mednis, 1955 (A84) Dutch, 41 moves, 0-1 r1 M Farre vs Portisch, 1955 (E62) King's Indian, Fianchetto, 60 moves, 1-0 r9 Portisch vs L Hallstrom, 1955 (D36) Queen's Gambit Declined, Exchange, Positional line, 6.Qc2, 33 moves, 1/2-1/2 r8 D Keller vs Portisch, 1955 (B28) Sicilian, O'Kelly Variation, 48 moves, 0-1 r2 Spassky vs Portisch, 1955  (E30) Nimzo-Indian, Leningrad, 36 moves, 1-0 r3 Portisch vs J van Oosterom, 1955 (A44) Old Benoni Defense, 38 moves, 1-0 Which round?! Preliminaries or finals group?! S Schweber vs Spassky, 1955  (E59) Nimzo-Indian, 4.e3, Main line, 35 moves, 0-1 21 games