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Chess Opening Theory/1. e4/1...e5/2. d4/2...exd4/3. c3

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Danish Gambit
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Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e4 e5 2. d4 exd4 3. c3
ECO code: C21
Parent: Centre game →
Responses:

3. c3 · Danish gambit

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This is an aggressive gambit which, if accepted, leads to a tactical game. Before retaking the pawn, White allows Black to take a second one first. White hopes to use the tempi to get their pieces developed, while Black busy capturing pawns.

After 3...dxc3, accepting the gambit, White has two choices. After 4. Nxc3, Black is up a pawn, but in exchange White has a piece developed and is the only one with a pawn in the centre. More common is 4. Bc4, giving Black the chance to win another pawn: 4...cxb2 5. Bxb2, White is down two pawns but in compensation has two pieces developed and centre control.

While engines find that Black has a slightly edge in the Danish gambit accepted, the lines are nevertheless dangerous to face because of White's piece activity. Therefore it is more common for Black to decline the gambit at this stage, with 3...d5, the Sörensen defence. In lieu of giving White piece activity, Black allows White to recover the pawn, 4. exd5 Qxd5 5. cxd4,

3...Qe7 is an uncommon but sound sideline, where Black stays up one pawn without giving White so much of a development lead.

This covers the main moves. Black has a few other moves to give back the pawn, but these are atypical:

3...Nc6 is the most common way to decline the gambit at the amateur level. 4. Nf3 transposes to the Göring gambit more commonly seen in the Scotch game move order, which may still be declined with ...d5. Otherwise, 4. cxd4 d5 5. e5, White regains the material and has more space.

3...d3!? to decline the gambit is inferior, as it allows 4. Bxd3, where White both recovers the material and develops a piece.

3...Ne7 is called the Svenonius defence.

History

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The gambit is named for Martin Severin From (1828―1895), a Danish chess master who played it extensively including at a major tournament in Paris in 1867.[1]

Theory table

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1. e4 e5 2. d4 exd4 3. c3

3 4 56789
Danish Gambit Accepted c3
dxc3
Bc4
cxb2
Bxb2
Nf6
e5

d5

exf6

Bb4+

Bc3

Bxc3+

Nxc3

dxc4

∞
Sörensen Defence ...
d5
exd5
Qxd5
cxd4
Nc6
Nf3

Bb4+

Nc3

Bg4

Be2

Bxf3

Bxf3

Qc4

=
Ponziani ...
Nf6
e5
Nd5
cxd4
d6
Nf3

Nc6

Bb5

Be7

Nc3

Nxc3

bxc3

a6

=
Alternate Declination ...
d6
cxd4
d5
e5
c5
Nf3

Nc6

Bb5

cxd4

Nxd4

Bb4+

Nc3

Ne7

=
Advance Variation ...
d3
Bxd3
Nc6
Nf3
Bc5
b4

Bb6

a4

a6

O-O

d6

Nbd2

Nf6

+=
Qe7 Variation ...
Qe7
cxd4
Qxe4+
Be3

Bb4+

Nc3

Nf6

Nf3

Ng4

Qd2

Nxe3

fxe3

Qe7

∞
Svenonius Defence...

Ne7

=

References

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See also

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v · t · e
Chess Opening Theory
1. e4 e5
Open games
3. Bb5
Spanish
3. Bc4
Italian
3. Nc3
Three knights
Other
2...Nf6
Russian
2...d6
Philidor
Other
2. f4
King's gambit
2. Nc3
Vienna
Other
1. e4 c5
Sicilian
1. e4 e6
French
1. e4 c6
Caro-Kann
1. e4 other
1. d4 d5
Closed games
1. d4 Nf6
Indian
1. d4 f5
Dutch
1. d4 ...other:
1. Nf3
Zukertort
Flank
Unorthodox