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Chess Opening Theory/1. c4/1...b5

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Halibut Gambit
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Position in Forsyth-Edwards Notation (FEN)

rnbqkbnr/p1pppppp/8/1p6/2P5/8/PP1PPPPP/RNBQKBNR w

Moves: 1.c4 b5
ECO code: A10
Parent: English Opening

English Opening: Halibut Gambit

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The Halibut gambit is a wing gambit. Black sacrifices a pawn on b5 to move white's central pawn to the outermost flank, while also helping black develop his pieces after 3.bxa6 with either then 3...Bxa6, 3...Nxa6, or even 3...e5 ignoring the pawn like in the Benko Gambit and grabbing space in the center.

Theory table

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

.

1.c4 b5

2 3 4 5 6
cxb5
a6		 e4!
Bb7		 Nc3
Nf6		 e5
Nd5		 Nf3
e6		 +=
...
...		 ...
d5		 exd5
Nf6		 d4
Nxd5		 Nf3
e6		 +=
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References

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v · t · e
Chess Opening Theory
1. e4 e5
Open game
2. Nf3
With 2...Nc6:
  • Four knights (
    )
  • Italian game (
    )
  • Spanish game (
    )

With other 2nd moves:

2. Other

1. e4 c5
Sicilian defence
2. Nf3 · Open Sicilian
With 2...Nc6:
With 2...d6:
With 2...e6:
With other 2nd moves:
Anti-Sicilians
1. e4 ...other:
Caro-Kann
French
Other


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

With 2...g6:

With other 2nd moves for Black:
2. Nf3
2. other:
1. d4 f5
Dutch defence
1. d4 ...other:
Flank
Unorthodox


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