QGA, Flohr variation (D25)

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Be6

Gruenfeld (D90)

Flohr variation

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+

QGA (D28)

Classical, Flohr variation

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Nc6 9. Rd1 c4 10. Bc2 Nb4 11. Nc3 Nxc2 12. Qxc2 Bb7 13. d5 Qc7

Sicilian (B32)

Flohr variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7

English, Nimzovich, Flohr variation (A20)

1. c4 e5 2. Nf3 e4

Sicilian (B71)

Dragon, Levenfish; Flohr variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7

Caro-Kann (B18)

Classical, Flohr variation

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3

Alekhine's defense (B05)

Modern, Flohr variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 c6

English (A18)

Mikenas-Carls, Flohr variation

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5

Gruenfeld (D94)

Flohr defense

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd3 c6 7. O-O Bf5

Ruy Lopez (C92)

Closed, Flohr-Zaitsev system (Lenzerheide variation)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Bb7

King's Indian (E97)

Orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6

QGA (D20)

Linares variation

1. d4 d5 2. c4 dxc4 3. e4 c5 4. d5 Nf6 5. Nc3 b5

QGD (D38)

Ragozin variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4

QGD (D37)

Classical variation (5.Bf4)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4

QGD (D35)

Exchange variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5

Sicilian (B41)

Kan variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6

QGA (D21)

Ericson variation

1. d4 d5 2. c4 dxc4 3. Nf3 b5

QGD (D53)

Lasker variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Ne4

QGD (D50)

Been-Koomen variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5