English (A23)

Bremen system, Keres variation

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

English (A24)

Bremen system with ...g6

1. c4 e5 2. Nc3 Nf6 3. g3 g6

English (A22)

Bremen, Smyslov system

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4

English (A22)

Carls' Bremen system

1. c4 e5 2. Nc3 Nf6 3. g3

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

English (A22)

Bremen, reverse Dragon

1. c4 e5 2. Nc3 Nf6 3. g3 d5

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

English, Keres variation (A21)

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

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

Reti accepted (A09)

Keres variation

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

Ruy Lopez (C68)

Exchange, Keres variation

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

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

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

Sicilian (B62)

Richter-Rauzer, Keres variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd3

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

Reti (A07)

King's Indian attack, Keres variation

1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7

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

English (A14)

Symmetrical, Keres defense

1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O c5 6. cxd5 Nxd5 7. Nc3 Nc6