Sicilian (B53)

Chekhover, Zaitsev variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qd7

Sicilian, Chekhover variation (B53)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4

Dutch (A95)

Stonewall: Chekhover variation

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. Nc3 c6 8. Qc2 Qe8 9. Bg5

Ruy Lopez (C64)

Classical defense, Zaitsev variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. b4

Benko gambit (A57)

Zaitsev system

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3

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

QGD (D30)

Stonewall variation

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 c6 5. Nbd2 Ne4 6. Bd3 f5

QGA (D26)

Classical variation, 6.O-O

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O

QGD (D30)

Spielmann variation

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 c6 5. Nbd2 g6

QGD (D30)

Capablanca variation

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nbd2

QGD (D30)

Vienna variation

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Bb4+

QGD (D30)

Hastings variation

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 h6 5. Bxf6 Qxf6 6. Nc3 c6 7. Qb3

QGD (D31)

Janowski variation

1. d4 d5 2. c4 e6 3. Nc3 a6

QGD (D31)

Alapin variation

1. d4 d5 2. c4 e6 3. Nc3 b6

QGD (D35)

Exchange variation

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

QGA (D26)

Classical variation

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5

QGA, Flohr variation (D25)

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

Dutch, 2.Bg5 variation (A80)

1. d4 f5 2. Bg5

KGD (C30)

Classical variation

1. e4 e5 2. f4 Bc5