A01 Nimzo-Larsen Attack
A01 holds 15 named lines, all under the name Nimzo-Larsen Attack. Its reference line is a single first move, played from the initial position. None of its 15 lines contains a capture. Every line here opens 1.b3, a first move used by only 15 of the 3,865 lines in the list.
| # | White | Black |
|---|---|---|
| 1 | b3 |
What each move does
- 1.b3 The b-pawn advances to b3, covering a4 and c4, opening a line for the bishop on c1.
Lines filed under A01
All 15 share their first one ply, the whole reference line and then split seven ways at Black’s move 1.
| Name | After the shared start | Plies |
|---|---|---|
| Nimzo-Larsen Attack | (the shared start itself) | 1 |
| Nimzo-Larsen Attack: Classical Variation | 1...d5 | 2 |
| Nimzo-Larsen Attack: Dutch Variation | 1...f5 | 2 |
| Nimzo-Larsen Attack: English Variation | 1...c5 | 2 |
| Nimzo-Larsen Attack: Indian Variation | 1...Nf6 | 2 |
| Nimzo-Larsen Attack: Modern Variation | 1...e5 | 2 |
| Nimzo-Larsen Attack: Polish Variation | 1...b5 | 2 |
| Nimzo-Larsen Attack: Symmetrical Variation | 1...b6 | 2 |
| Nimzo-Larsen Attack: Graz Attack | 1...d5 2.Ba3 | 3 |
| Nimzo-Larsen Attack: Modern Variation | 1...e5 2.Bb2 Nc6 | 4 |
| Nimzo-Larsen Attack: Modern Variation | 1...e5 2.Bb2 Nc6 3.e3 | 5 |
| Nimzo-Larsen Attack: Pachman Gambit | 1...e5 2.Bb2 Nc6 3.f4 | 5 |
| Nimzo-Larsen Attack: Ringelbach Gambit | 1...f5 2.Bb2 e6 3.e4 | 5 |
| Nimzo-Larsen Attack: Spike Variation | 1...Nf6 2.Bb2 g6 3.g4 | 5 |
| Nimzo-Larsen Attack: Modern Variation | 1...e5 2.Bb2 Nc6 3.c4 Nf6 | 6 |
The position after 1.b3
Black is to move and has 20 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| A00 | Van Geet Opening | four squares: b1, b2, b3, c3 |
| A02 | Bird Opening | four squares: b2, f2, b3, f4 |
| A04 | Zukertort Opening | four squares: g1, b2, b3, f3 |
| A10 | English Opening | four squares: b2, c2, b3, c4 |
| A40 | Queen’s Pawn Game | four squares: b2, d2, b3, d4 |
| B00 | King’s Pawn Game | four squares: b2, e2, b3, e4 |
| A03 | Bird Opening: Dutch Variation | six squares: b2, f2, b3, f4, d5, d7 |