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Chess Opening Theory/1. e4/1...Nf6/2. e5/2...Nd5/3. d4/3...b5

Alekhine's Defence
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Position in Forsyth-Edwards Notation (FEN)

rnbqkb1r/p1pppppp/8/1p1nP3/3P4/8/PPP2PPP/RNBQKBNR w

Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 b5

Alekhine Defense: O'Sullivan Gambit

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Black sacrifices their pawn to bring White's bishop to a vulnerable square. White's strongest move is to accept the gambit, although it can be ignored with a developing move like 4. Nf3 or 4. c4.

Theory table

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For explanation of theory tables, see theory table and for notation, see algebraic notation..

'1.e4 Nf6 2.e5 Nd5 3.d4 b5'

3
...
d6 		=

'1.e4 Nf6 2.e5 Nd5 3.d4'

3
...
e6 		=

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References

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Wikipedia has related information at Alekhine's Defence


v · t · e
Chess openings quick reference
1. e4
1...e5 · Open
2. Nf3
With 2...Nc6:

With other 2nd moves:
2. Other

1...c5 · Sicilian
2... Nf3 · Open Sicilian
With 2...Nc6:

With 2...d6:

With 2...e6:

With other 2nd moves:
Anti-Sicilians
1... other
Caro-Kann
French
Other


1. d4
1...d5 · Closed
2. c4
2. Nc3
2. other
1...Nf6 · Indian
2. c4
With 2...e6:

With 2...g6:

With other 2nd moves for Black:
2. Nf3
2. other
1... other
Flank
Unorthodox
出典: Chess Opening Theory/1. e4/1...Nf6/2. e5/2...Nd5/3. d4/3...b5

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