Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5
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| Two Knights Defence | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Position in Forsyth-Edwards Notation(FEN)
r1bqkb1r/pppp1ppp/2n2n2/4p1N1/2B1P3/8/PPPP1PPP/RNBQK2R |
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| Moves: 1. e4 e5 2.Nf3 Nc6 3.Nc4 Nf6 4.Ng5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ECO code: C57-C59 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Parent: Italian Game | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Contents |
[edit] Two Knights Defence
[edit] 4. Ng5
- This move is interesting. While some in the past consider it ridiculous, others point that White wins a pawn in the process.
- The White Knight now threatens a fork with Nxf7, yet to do so it's broken a rule of opening development in that the same piece moves twice. Black's only sensible way to defend f7 is to block the bishop access with 4...d5, however the pawn on d5 itself is not fully defendable by Black.
- Black has two sensible replies.
[edit] Theory table
For explanation of theory tables see theory table and for notation see algebraic notation.
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5
4 |
5 |
6 |
7 |
8 |
9 |
10 |
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|---|---|---|---|---|---|---|---|---|---|
| Two Knights Defence | 1 | Ng5 Bc5!? |
Bxf7+ Ke7 |
Bd5 Rf8 |
O-O d6 |
c3 Bg4 |
Qb3 Bb6 |
Bxc6 bxc6 |
+/= |
| 2 | ... d5 |
exd5 Nxd5!? |
d4 Bb4+ |
c3 Be7 |
Nxf7 Kxf7 |
Qf3+ Ke6 |
Qe4 Rf8 |
+/= | |
| 3 | ... ... |
... ... |
Nxf7!? Kxf7 |
Qf3+ Ke6 |
Nc3 Ncb4 |
a3 Nxc2+ |
Kd1 Nxa1 |
∞ | |
| 4 | ... ... |
... Na5 |
d3 h6 |
Nf3 e4 |
Qe2 Nxc4 |
dxc4 Bc5 |
Nfd2 O-O |
= | |
| 5 | ... ... |
... ... |
Bb5+ c6 |
dxc6 bxc6 |
Be2 h6 |
Nf3 e4 |
Ne5 Bc5 |
∞ | |
| 6 | ... ... |
... ... |
... ... |
... ... |
... ... |
Nh3 Bd6 |
d3 O-O |
∞ | |
| 7 | ... ... |
... ... |
... ... |
... ... |
Qf3 Be7 |
Bxc6+ Nxc6 |
Qxc6+ Bd7 |
∞ | |
| 8 | ... ... |
... b5 |
Bf1 h6 |
Nxf7 Kxf7 |
dxc6 Qd5 |
Qf3 Qc5 |
b4 Qxb4 |
∞ | |
| 9 | ... ... |
... Nd4 |
c3 b5 |
Bf1 Nxd5 |
Ne4 Qh4 |
Ng3 Bg4 |
f3 e4 |
||
| 10 | ... Nxe4!? |
Bxf7+ Ke7 |
d4 d5 |
Nc3 |
+= |
[edit] Statistics
Estimated next move popularity
d5 80%, Bc5 19%, Others less then 1%
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[edit] References
- Batsford Chess Openings 2 (1989, 1994). Garry Kasparov, Raymond Keene. ISBN 0-8050-3409-9.
- Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
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