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- E20 - 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 - Nimzo-Indian Defense, E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E20b - 4.g3 - Romanishin Variation (1922), E20f - 4.g3 c5 - Romanishin (1941), E20l - 4.g3 c5 5.Nf3 - Romanishin (1968), E20r - 4.g3 c5 5.Nf3 cxd4 - Romanishin, E20s - 4.g3 c5 5.Nf3 cxd4 6.Nxd4 - Romanishin (1980), E20t - 4.g3 c5 5.Nf3 cxd4 6.Nxd4 O-O - Romanishin (1967), E20u - 4.g3 c5 5.Nf3 cxd4 6.Nxd4 O-O 7.Bg2 - Romanishin, E20v - 4.g3 c5 5.Nf3 cxd4 6.Nxd4 O-O 7.Bg2 d5 - Romanishin (1981), E20v - 8.* (1981), SÉRIE E
World Cup 1991 – Round 1 – Beliavsky, Alexander G – 1/2-1/2 – Portisch, Lajos – G2
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- D80-D99 Gruenfeld defence1. d4 Nf6 2. c4 g6 3. Nc3 d5, D90 - 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 - Grünfeld Defense: Three Knights Variation (1946), D90k - 4…Bg7 5.cxd5 Nxd5 6.Qb3 - Three Knights Exchange, Romanishin Variation (1925), SÉRIE D
World Cup 1991 – Round 1 – Gulko, Boris – 1/2-1/2 – Ehlvest, Jaan – G9
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- D80-D99 Gruenfeld defence1. d4 Nf6 2. c4 g6 3. Nc3 d5, D94 - 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 - Grünfeld Defense: Three Knights Variation, Burille Variation, D94o - 5…c6 6.Be2 O-O 7.O-O - Gruenfeld: Slav/Schlecter (1922), SÉRIE D
World Cup 1991 – Round 10 – Gulko, Boris – 1/2-1/2 – Ljubojevic, Ljubomir – G70
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