King's RepositoryのロゴKing's Repository

Chess Opening Theory/1. d4/1...Nf6/2. c4/2...e5/3. dxe5

Budapest defence
a
b
c
d
e
f
g
h
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
a
b
c
d
e
f
g
h

Position in Forsyth-Edwards Notation (FEN)
Moves: 1. d4 Nf6 2. c4 e5 3. dxe5
ECO code: A51-A52
Parent: Budapest defence

3. dxe5

[edit | edit source]

White accepts the free pawn. This comes with tempo on Black's knight, so Black's must decide where to move it.

3...Ng4 is the mainline Budapest. This saves the knight and prepares to recapture the pawn. The next few moves revolve around the defence of or attack on the e5 pawn. After 4. Nf3, the Adler variation, White usually can't bring enough defenders so allows Black to take the pawn back and prioritises their piece development instead. Alekhine advocated 4. e4, giving the pawn back immediately without a fight. In the mainline, 4. Bf4, the Rubinstein variation, White does have the choice of hanging onto the pawn, but only if they decide it is worth having doubled c-pawns themselves.

The alternative is 3...Ne4, the Fajarowicz variation. Black sees no urgency in recovering the pawn and would rather prioritise activity.

Theory table

[edit | edit source]

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

1.d4 Nf6 2.c4 e5 3.dxe5

3 4 5 6 7
Fajarowicz gambit ...
Ne4
Nf3
Nc6
a3
d6
Qc2
Bf5
Nc3
Nxf2
+=
Adler variation ...
Ng4
Nf3
Bc5
e3
Nc6
Be2
O-O
O-O
Re8
+=
Rubinstein variation ...
...
Bf4
Nc6
Nf3
Bb4+
Nbd2
Qe7
e3
Ngxe5
+=
...
...
...
...
...
...
Nc3
Bxc3+
bxc3
Qe7
+=
...
...
...
g5
Bg3
Bg7
Nf3
Nc6
Nc3
Ngxe5
+=
Alekhine variation ...
...
e4
Nxe5
f4
Nec6
a3
a5
Be3
Na6
+=

When contributing to this Wikibook, please follow the Conventions for organization.

References

[edit | edit source]

See also

[edit | edit source]


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
1. e4 ...other: