Semi-Open · a defense for Black

Alekhine Defense: O'Sullivan Gambit

6/6
1.e4Nf62.e5Nd53.d4b5
Live databaseLichess 1600–2000 · blitz + rapid
Alekhine Defense: O'Sullivan Gambit148k games · White to move
MoveWhite / draw / BlackPlayedGamesScore
57%84k43%
20%29k45%
8.7%13k56%
6.8%10k42%
2.7%4.0k48%
1.3%2.0k53%
0.9%1.3k50%
0.5%79553%
0.5%77245%
0.5%71049%
Family
Alekhine Defense
Category
Semi-Open
First move
1.e4
ECO
B03
Line
1. e4 Nf6 2. e5 Nd5 3. d4 b5
GambitHypermodern
★ Read the guide: Alekhine DefenseExplore all 56 Alekhine Defense lines →
Keep exploring
Nearby lines in the family
Alekhine Defense: The Squirrel3.c4 Nf4Alekhine Defense: Mokele Mbembe, Modern Line2…Ne4 3.d4 f6Alekhine Defense: Mokele Mbembe, Vavra Defense2…Ne4 3.d4 e6
From the archives

Alexander Alekhine played 1...Nf6 at Budapest in 1921 and made it his: invite White's pawns to chase the knight across the board, then treat the overextended centre as a target. The move had been analysed a century earlier; the name stuck to the only world champion to die while still holding the title.

Study this opening
Open in the opening tree →Videos on YouTube ↗Wikipedia: Alekhine Defense ↗