ECO B02: Alekhine Defense

ECO B02 is part of volume B — Semi-Open Games. The Lichess chess-openings dataset files 27 named lines under it. The shortest is Alekhine Defense: 1. e4 Nf6.

That position has come up in 28,186,007 Lichess games between players rated 1600 to 2500: White won 46.3%, 5.0% were drawn and Black won 48.8%.

Opening	Moves	Plies
Alekhine Defense	`1. e4 Nf6`	2
Alekhine Defense: Krejcik Variation	`1. e4 Nf6 2. Bc4`	3
Alekhine Defense: Maróczy Variation	`1. e4 Nf6 2. d3`	3
Alekhine Defense: Brooklyn Variation	`1. e4 Nf6 2. e5 Ng8`	4
Alekhine Defense: Mokele Mbembe	`1. e4 Nf6 2. e5 Ne4`	4
Alekhine Defense: Normal Variation	`1. e4 Nf6 2. e5 Nd5`	4
Alekhine Defense: Scandinavian Variation	`1. e4 Nf6 2. Nc3 d5`	4
Alekhine Defense: Buckley Attack	`1. e4 Nf6 2. e5 Nd5 3. Na3`	5
Alekhine Defense: Krejcik Variation, Krejcik Gambit	`1. e4 Nf6 2. Bc4 Nxe4 3. Bxf7+`	5
Alekhine Defense: Sämisch Attack	`1. e4 Nf6 2. e5 Nd5 3. Nc3`	5
Alekhine Defense: Two Pawns Attack	`1. e4 Nf6 2. e5 Nd5 3. c4`	5
Alekhine Defense: Welling Variation	`1. e4 Nf6 2. e5 Nd5 3. b3`	5
Alekhine Defense: Brooklyn Variation, Everglades Variation	`1. e4 Nf6 2. e5 Ng8 3. d4 f5`	6
Alekhine Defense: Mokele Mbembe, Modern Line	`1. e4 Nf6 2. e5 Ne4 3. d4 f6`	6
Alekhine Defense: Mokele Mbembe, Vavra Defense	`1. e4 Nf6 2. e5 Ne4 3. d4 e6`	6
Alekhine Defense: Scandinavian Variation, Geschev Gambit	`1. e4 Nf6 2. Nc3 d5 3. exd5 c6`	6
Alekhine Defense: The Squirrel	`1. e4 Nf6 2. e5 Nd5 3. c4 Nf4`	6
Alekhine Defense: Scandinavian Variation, Myers Gambit	`1. e4 Nf6 2. Nc3 d5 3. d3 dxe4 4. Bg5`	7
Alekhine Defense: Spielmann Gambit	`1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. e6`	7
Alekhine Defense: Steiner Variation	`1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3`	7
Alekhine Defense: Two Pawns Attack, Lasker Variation	`1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5`	7
Alekhine Defense: Two Pawns Attack, Tate Variation	`1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. a4`	7
Alekhine Defense: Kmoch Variation	`1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3`	9
Alekhine Defense: Hunt Variation, Lasker Simul Gambit	`1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3`	11
Alekhine Defense: Two Pawns Attack, Mikenas Variation	`1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6`	12
Alekhine Defense: Hunt Variation, Matsukevich Gambit	`1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 d6 7. Bg5`	13
Alekhine Defense: Hunt Variation, Mikenas Gambit	`1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 7. Nxd5 exd5 8. Bxd5`	15