E34 Nimzo-Indian Defense: Classical Variation, Noa Variation
E34 holds two named lines, all under the name Nimzo-Indian Defense. It leaves E32 (Nimzo-Indian Defense: Classical Variation) with 4...d5. That final move, by the d-pawn, covers c4 and e4 and opens a line for the bishop on c8 and the queen on d8. Of all other reference positions, the board of E35 (Classical Variation, Noa Variation) comes closest, two squares apart.
| # | White | Black |
|---|---|---|
| 1 | d4 | Nf6 |
| 2 | c4 | e6 |
| 3 | Nc3 | Bb4 |
| 4 | Qc2 | d5 |
Lines filed under E34
Both share their first eight plies, the whole reference line.
| Name | After the shared start | Plies |
|---|---|---|
| Nimzo-Indian Defense: Classical Variation, Noa Variation | (the shared start itself) | 8 |
| Nimzo-Indian Defense: Classical Variation, Belyavsky Gambit | 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qd1 e5 | 14 |
Nimzo-Indian Defense: Classical Variation, Belyavsky Gambit
- 5.cxd5 The c-pawn takes the pawn on d5, covering c6 and e6.
- 5...Qxd5 The queen on d8 takes the pawn on d5.
- 6.Nf3 The knight leaves g1 for f3, opening a line for the rook on h1, guarding the pawn on d4.
- 6...Qf5 The queen goes from d5 to f5, attacking the queen on c2 and the knight on f3.
- 7.Qd1 The queen goes from c2 to d1.
The road to E34
- 1.d4 … 3.Nc3three earlier stops: A40, A45, A50
- 3...Bb4E20 Nimzo-Indian Defense
- 4.Qc2E32 Classical Variation
- 4...d5E34
The position after 4...d5
White has brought out the knight on c3; Black the knight on f6 and bishop on b4. White could capture with Qxh7, cxd5. White is to move and has 33 legal moves.
Codes that branch off from E34
The reference lines of two other codes leave E34 from the position after 4...d5, each with its own moves.
| Code | Moves | Reference line |
|---|---|---|
| E35 | 5.cxd5 exd5 | Nimzo-Indian Defense: Classical Variation, Noa Variation |
| E36 | 5.a3 | Nimzo-Indian Defense: Classical Variation, Noa Variation |
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| D35 | Queen’s Gambit Declined: Normal Defense | four squares: d1, c2, b4, f8 |
| D38 | Queen’s Gambit Declined: Ragozin Defense | four squares: d1, g1, c2, f3 |
| E20 | Nimzo-Indian Defense | four squares: d1, c2, d5, d7 |
| E22 | Nimzo-Indian Defense: Spielmann Variation | four squares: c2, b3, d5, d7 |
| E33 | Nimzo-Indian Defense: Classical Variation, Zurich Variation | four squares: d5, c6, d7, b8 |
| E38 | Nimzo-Indian Defense: Classical Variation, Berlin Variation | four squares: c5, d5, c7, d7 |
| B14 | Caro-Kann Defense: Panov Attack | six squares: d1, c2, e2, b4, c7, f8 |
Where lines continue from here
Eight named lines filed under other codes pass through the position after 4...d5. Besides the codes above, they belong to E37.