King's Indian (E93)

Petrosian system, Keres variation

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nh5 11. h4

Ruy Lopez (C92)

Closed, Ragozin-Petrosian (`Keres') 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 Nd7

Queen's Indian (E12)

Petrosian system

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3

King's Indian (E92)

Petrosian system

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5

King's Indian (E92)

Petrosian system, Stein variation

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 a5

King's Indian (E93)

Petrosian system, Main line

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7

English (A23)

Bremen system, Keres variation

1. c4 e5 2. Nc3 Nf6 3. g3 c6

QGD (D55)

Petrosian variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bxf6 Bxf6 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc4

QGD (D31)

Charousek (Petrosian) variation

1. d4 d5 2. c4 e6 3. Nc3 Be7

French (C16)

Winawer, Petrosian variation

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7

English, Keres variation (A21)

1. c4 e5 2. Nc3 d6 3. g3 c6

Sicilian (B20)

Keres variation (2.Ne2)

1. e4 c5 2. Ne2

KGD (C32)

Falkbeer, Keres variation

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nd2

Gruenfeld (D98)

Russian, Keres variation

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Be2 Nb6 10. Qd3 Nc6 11. O-O-O

Reti accepted (A09)

Keres variation

1. Nf3 d5 2. c4 dxc4 3. e3 Be6

Nimzo-Indian (E53)

4.e3, Keres variation

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O b6

Ruy Lopez (C92)

Closed, Keres (9...a5) 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 a5

Ruy Lopez (C68)

Exchange, Keres variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3

Nimzo-Indian (E25)

Saemisch, Keres variation

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. dxc5

Alekhine's defense (B04)

Modern, Keres variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4