Four knights (C46)

Italian variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4

Giuoco Pianissimo (C50)

Italian Four knights variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3

Petrov (C42)

Italian variation

1. e4 e5 2. Nf3 Nf6 3. Bc4

Ruy Lopez (C82)

Open, Italian variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5

Four knights (C48)

Spielmann variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 dxc6 6. Nxe5 Nxe4 7. Nxe4 Qd4 8. O-O Qxe5 9. Re1 Be6 10. d4 Qd5

Four knights (C48)

Ranken variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6

Four knights (C47)

Scotch variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4

Four knights (C46)

Gunsberg variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3

Three knights (C46)

Steinitz variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 g6

Four knights (C48)

Bardeleben variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Nc6 9. e5 Bb4

Four knights (C48)

Marshall variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nd4

French (C00)

Two knights variation

1. e4 e6 2. Nc3 d5 3. Nf3

Four knights (C49)

Symmetrical variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6

Four knights (C49)

Alatortsev variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Qe7 7. Ne2 d5

Four knights (C49)

Janowski variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1

Four knights (C49)

Svenonius variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5

Gruenfeld (D90)

Three knights variation

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

Gruenfeld (D90)

Three knights variation

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3

Three knights (C46)

Schlechter variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Nd5 Nf6

Four knights (C48)

Spanish variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5