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Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Bc5/3. Nxe5
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| Busch-Gass gambit | |
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Position in Forsyth-Edwards Notation (FEN)
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| Moves: 1. e4 e5 2. Nf3 Bc5 3. Nxe5 | |
| ECO code: C40 | |
| Parent: Busch-Gass gambit | |
3. Nxe5
[edit | edit source]White captures Black's undefended e-pawn.
Black's plan to justify the gambit is 3...Qh4. This threatens mate on f2 and looks to recover the e pawn. White can counter both threats with 4. Qe2, but the most critical line is actually 4. d4! Qxe4 5. Be3, giving up the pawn but achieving a crushing lead in development (5...Nf6 6. Nd2 Qf5 7. Bd3 Qe6 8. Nxf7 Qxf7 9. dxc5).
Black's alternative third move is 3...Nc6, the Chiodini gambit, which transposes into a Stafford gambit after 4. Nxc6 dxc6.
The wild sacrifice 3...Bxf2+?! achieves nothing. 3...d6 is probably the most sound continuation, but Black has to make peace with having given up a pawn in exchange for a slightly improved Philidor.
Theory table
[edit | edit source]1. e4 e5 2. Nf3 Bc5 3. Nxe5
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
|---|---|---|---|---|---|---|---|---|
| Busch-Gass gambit (trap) | ... Qh4 |
g3?? Qxe4+ |
Qe2 Qxh1 |
-+ | ||||
| Busch-Gass refutation | ... ... |
d4 Qxe4+ |
Be3 Nf6 |
Nd2 Qf5 |
Bd3 Qe6 |
Nxf7 Qxf7 |
dxc5 | +- |
| Chiodini gambit accepted | ... Nc6 |
Nxc6 dxc6 |
||||||
| Stafford transposition | ... ... |
... ... |
d3 Nf6 |
References
[edit | edit source]
2. f4
King's gambit
King's gambit
2...exf4
Accepted
Accepted
Other
Declined
Declined
2. Nc3
Vienna
Vienna
Other
1. e4 other
- Barnes ?
- Borg ?
- Corn stalk ??
- Duras ??
- 1...b5 ??
2. c4
Queen's gambit
Queen's gambit
2. other
- Accelerated London
- Colle
- Levitsky !?
- Amazon ?!
- Blackmar-Diemer ?
- Mason ?
- Zurich ??
2. c4 other
2. other:
1. d4 ...other:
Flank
Unorthodox
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