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Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...Nf6/4. d3/4...Ne7
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Position in Forsyth-Edwards Notation (FEN)
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| Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 | |
| ECO code: C60—99 | |
| Parent: Anti-Berlin | |
4...Ne7 · Mortimer variation
[edit | edit source]4...Ne7 in the Anti-Berlin is the Mortimer variation. On the surface this is a strange move: Black violates principles by moving their knight a second time in the opening, at the same time inhibiting the development of their king-side bishop. Black's idea is to free the c6 square for their pawn, and chase White's bishop away that way.
5. Nxe5? falls into the Mortimer trap. 4...Ne7 appeared to undefend the e5 pawn. As the opening manoeuvres of the Spanish game centre around these e-pawns, White may think to punish Black's passive move by snapping up the e-pawn. But, after 5...c6 6. Bc4 (or Ba4), Black has 6...Qa5+!, forking the knight.
Therefore 5. O-O is the mainline, removing the king from the centre and any ideas of Qa5+. After 5...c6 6. Ba4 Black must defend e5, either with 6...d6 or by moving the knight again, 6...Ng6.
History
[edit | edit source]The Mortimer variation is named after James Mortimer (1832―1911), who played it at a tournament in London in 1883.[1]
Theory table
[edit | edit source]1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7
| 5 | 6 | 7 | 8 | 9 | ||
|---|---|---|---|---|---|---|
| Mortimer variation | O-O c6 |
Ba4 Ng6 |
c3 Be7 |
Re1 O-O |
Nbd2 | = |
| Mortimer trap | Nxe5? c6 |
Bc4 Qa5+ |
Bd2 Qxe5 |
∓ |
References
[edit | edit source]See also
[edit | edit source]
- Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
- Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
With 2...g6:
With other 2nd moves for Black:
Dutch defence
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