Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. d4/4...exd4/5. O-O
Two Knights Defence: Classical Variation | |
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Position in Forsyth-Edwards Notation (FEN)
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Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O |
Two Knights Defence: Classical Variation
[edit | edit source]5. O-O
[edit | edit source]The classical variation. Castling both gives the White King some security and activates the rook to be able to come to e1 which has much potential to support the White e-pawn or pin any pieces that take the e-pawn. Black's possible sensible replies are:
- 5....Nxe4
- 5....Bc5
- 5....d6
- 5....Be7
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Theory table
[edit | edit source].
- 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4.d4 exd4 5. O-O
5 |
6 |
7 |
8 |
9 |
10 |
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1 | O-O Nxe4 |
Re1 d5 |
Bxd5 Qxd5 |
Nc3 Qh5 |
Nxe4 Be6 |
Bg5 Bd6 |
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2 | ... Bc5 |
e5 d5 |
exf6 dxc4 |
Re1+ Be6 |
Ng5 Qd5 |
Nc3 Qf5 |
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3 | ... d6 |
Nxd4 Be7 |
Nc3 O-O |
Re1 Bd7 |
f4 Nxd4 |
Qxd4 c6 |
+/= | ||
4 | ... Be7 |
Nxd4 d6 |
Transposes to above line |
References
[edit | edit source]1. e4
2. Nf3
2. Other
1... other
1. d4
2. other
2. c4
With 2...e6:
With 2...g6:
With other 2nd moves for Black:
With 2...g6:
With other 2nd moves for Black:
2. Nf3
2. other
1... other
Flank
Unorthodox