A47 Pseudo Queen’s Indian Defense
Also filed here: Marienbad System, Indian Defense.
A47 holds five named lines from three openings, most of them (two) under Marienbad System. It leaves A46 (Indian Defense: Knights Variation) with 2...b6. Lines filed under E14 reach one of its named positions by a different move order. That final move, by the b-pawn, covers a5 and c5 and opens a line for the bishop on c8.
| # | White | Black |
|---|---|---|
| 1 | d4 | Nf6 |
| 2 | Nf3 | b6 |
Lines filed under A47
All five share their first four plies, the whole reference line and then split three ways at White’s move 3.
| Name | After the shared start | Plies |
|---|---|---|
| Pseudo Queen’s Indian Defense | (the shared start itself) | 4 |
| Indian Defense: Schnepper Gambit | 3.c3 e5 | 6 |
| Marienbad System | 3.g3 Bb7 4.Bg2 c5 | 8 |
| Marienbad System: Berg Variation | 3.g3 Bb7 4.Bg2 c5 5.c4 cxd4 6.Qxd4 | 11 |
| Pseudo Queen’s Indian Defense | 3.e3 Bb7 4.Bd3 e6 5.Nbd2 c5 6.b3 Be7 | 12 |
The road to A47
- 1.d4one earlier stop: A40
- 1...Nf6A45 Indian Defense
- 2.Nf3A46 Knights Variation
- 2...b6A47
The position after 2...b6
White has brought out the knight on f3; Black the knight on f6. White is to move and has 30 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| A05 | Zukertort Opening | four squares: d2, d4, b6, b7 |
| A45 | Indian Defense | four squares: g1, f3, b6, b7 |
| A48 | East Indian Defense | four squares: b6, g6, b7, g7 |
| E12 | Queen’s Indian Defense | four squares: c2, c4, e6, e7 |
| D23 | Queen’s Gambit Accepted | five squares: c2, c4, b6, b7, d7 |
| A04 | Zukertort Opening | six squares: d2, d4, b6, f6, b7, g8 |
| A31 | English Opening: Symmetrical Variation, Anti-Benoni Variation | six squares: c2, c4, c5, b6, b7, c7 |
Other move orders
- Pseudo Queen’s Indian Defense is also reached inside E14 Queen’s Indian Defense, with e3, whose order is 1.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.Nbd2 c5 6.b3 Be7.