Dutch, Manhattan (Alapin, Ulvestad) variation (A80)

1. d4 f5 2. Qd3

QGD (D51)

Manhattan variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Bb4

Evans gambit (C51)

Ulvestad variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. d5 Na5 10. Bb2

Two knights defense (C57)

Ulvestad variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5

Dutch defense (A90)

Dutch-Indian (Nimzo-Dutch) variation

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Bb4+

QGD (D31)

Alapin variation

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

KGD (C32)

Falkbeer, Alapin variation

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf2+ 8. Kd1 Qxd5+ 9. Nfd2

French (C00)

Alapin variation

1. e4 e6 2. d4 d5 3. Be3

French (C14)

Classical, Alapin variation

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Nb5

QGD Slav accepted (D16)

Alapin variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4

QGD (D08)

Albin counter-gambit, Alapin variation

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2

Evans gambit (C52)

Sanders-Alapin variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bd7

Ruy Lopez (C69)

Exchange variation, Alapin gambit

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 h5

Evans gambit (C52)

Alapin-Steinitz variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bg4

Ruy Lopez (C73)

Modern Steinitz defense, Alapin variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6

Vienna (C25)

Hamppe-Allgaier gambit, Alapin variation

1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6

Ruy Lopez (C77)

Wormald (Alapin) attack

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2

Dutch, 2.Bg5 variation (A80)

1. d4 f5 2. Bg5

Dutch (A92)

Stonewall variation

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5

QGD Slav (D18)

Dutch variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3