B09 Pirc Defense: Austrian Attack
B09 holds eight named lines, all under the name Pirc Defense. It leaves B07 (Pirc Defense) with 4.f4. None of its eight lines contains a capture. That final move, by the f-pawn, covers e5 and g5.
| # | White | Black |
|---|---|---|
| 1 | e4 | d6 |
| 2 | d4 | Nf6 |
| 3 | Nc3 | g6 |
| 4 | f4 |
Lines filed under B09
All eight share their first seven plies, the whole reference line.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| Pirc Defense: Austrian Attack | (the shared start itself) | 7 | |
| Pirc Defense: Austrian Attack, Ljubojevic Variation | 4...Bg7 5.Bc4 | 9 | |
| Pirc Defense: Austrian Attack | 4...Bg7 5.Nf3 O-O | 10 | Black castled |
| Pirc Defense: Austrian Attack, Dragon Formation | 4...Bg7 5.Nf3 c5 | 10 | |
| Pirc Defense: Austrian Attack, Kurajica Variation | 4...Bg7 5.Nf3 O-O 6.Be3 | 11 | Black castled |
| Pirc Defense: Austrian Attack, Unzicker Attack | 4...Bg7 5.Nf3 O-O 6.e5 | 11 | Black castled |
| Pirc Defense: Austrian Attack, Weiss Variation | 4...Bg7 5.Nf3 O-O 6.Bd3 | 11 | Black castled |
| Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation | 4...Bg7 5.Nf3 O-O 6.e5 Nfd7 7.h4 | 13 | Black castled |
The road to B09
- 1.e4 … 2.d4three earlier stops: B00
- 2...Nf6B00 Pirc Defense
- 3...g6B07 Pirc Defense
- 4.f4B09
The position after 4.f4
White has brought out the knight on c3; Black the knight on f6. Black could capture with Nxe4. Black is to move and has 31 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| B71 | Sicilian Defense: Dragon Variation, Levenfish Variation | three squares: g1, d4, c7 |
| E76 | King’s Indian Defense: Four Pawns Attack | four squares: c2, c4, g7, f8 |
| B70 | Sicilian Defense: Dragon Variation | five squares: g1, f2, d4, f4, c7 |
| A66 | Benoni Defense: Pawn Storm Variation | six squares: c2, d4, c5, d5, c7, e7 |
| E80 | King’s Indian Defense: Sämisch Variation | six squares: c2, f3, c4, f4, g7, f8 |
| B72 | Sicilian Defense: Dragon Variation | seven squares: c1, g1, f2, e3, d4, f4, c7 |
| B82 | Sicilian Defense: Scheveningen Variation, Matanovic Attack | seven squares: g1, d4, e6, g6, c7, e7, g7 |