A71 Benoni Defense: Classical Variation, Averbakh-Grivas Attack
A71 holds a single named line. It leaves A70 (Benoni Defense: Classical Variation) with 7...Bg7 8.Bg5. White’s pieces and pawns attack ten squares in Black’s half, the second-highest count of the 23 Benoni Defense codes. That final move, by the bishop, opens a line for the rook on a1 and the queen on d1 and attacks the knight on f6.
| # | White | Black |
|---|---|---|
| 1 | d4 | Nf6 |
| 2 | c4 | e6 |
| 3 | Nf3 | c5 |
| 4 | d5 | exd5 |
| 5 | cxd5 | d6 |
| 6 | Nc3 | g6 |
| 7 | e4 | Bg7 |
| 8 | Bg5 |
The road to A71
- 1.d4 … 6.Nc3four earlier stops: A40, A45, A50, E10
- 6...g6A61 Benoni Defense
- 7.e4A70 Classical Variation
- 8.Bg5A71
The position after 8.Bg5
White has brought out the knight on c3, knight on f3 and bishop on g5; Black the knight on f6 and bishop on g7. White has a half-open c-file; Black a half-open e-file. Black could capture with Nxd5, Nxe4. Black is to move and has 34 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| A61 | Benoni Defense | six squares: c1, e2, e4, g5, g7, f8 |
| A65 | Benoni Defense: King’s Pawn Line | seven squares: c1, g1, f3, g5, g6, g7, f8 |
| A66 | Benoni Defense: Pawn Storm Variation | eight squares: c1, g1, f2, f3, f4, g5, g7, f8 |
| A67 | Benoni Defense: Taimanov Variation | eight squares: c1, f1, g1, f2, f3, f4, b5, g5 |
| A68 | Benoni Defense: Four Pawns Attack | eight squares: c1, f2, f4, g5, e8, f8, g8, h8 |
| A72 | Benoni Defense: Classical Variation | eight squares: c1, f1, e2, g5, e8, f8, g8, h8 |
| E90 | King’s Indian Defense: Normal Variation, Rare Defenses | eight squares: c1, c4, d4, c5, d5, g5, c7, e7 |