B39 Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation
B39 holds a single named line. It leaves B38 (Sicilian Defense: Accelerated Dragon, Maróczy Bind) with 6...Nf6 7.Nc3 Ng4. That final move, by the knight, opens a line for the bishop on g7 and attacks the bishop on e3. Of all other reference positions, the board of B35 (Accelerated Dragon, Modern Bc4 Variation) comes closest, five squares apart.
| # | White | Black |
|---|---|---|
| 1 | e4 | c5 |
| 2 | Nf3 | Nc6 |
| 3 | d4 | cxd4 |
| 4 | Nxd4 | g6 |
| 5 | c4 | Bg7 |
| 6 | Be3 | Nf6 |
| 7 | Nc3 | Ng4 |
Moves only B39 plays
Same as B38 up to 6.Be3, then:
- 6...Nf6 The knight leaves g8 for f6, opening a line for the rook on h8.
- 7.Nc3 The knight leaves b1 for c3, opening a line for the rook on a1 and the queen on d1, guarding the pawn on e4.
- 7...Ng4 The knight goes from f6 to g4, opening a line for the bishop on g7, attacking the bishop on e3.
The road to B39
- 1.e4 … 5.c4nine earlier stops: B00, B20, B27, B30, B32, B36
- 5...Bg7B37 Maróczy Bind
- 6.Be3B38 Maróczy Bind
- 7...Ng4B39
The position after 7...Ng4
White has brought out the knight on c3, knight on d4 and bishop on e3; Black the knight on c6, knight on g4 and bishop on g7. White has a half-open d-file; Black a half-open c-file. White could capture with Nxc6, Qxg4. Undefended and attacked: the knight on g4. White is to move and has 46 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| B37 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | six squares: b1, c1, c3, e3, g4, g8 |
| B36 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | eight squares: b1, c1, c3, e3, g4, g7, f8, g8 |
| E70 | King’s Indian Defense: Normal Variation | nine squares: c1, g1, e3, d4, g4, c6, f6, c7 … |
| B72 | Sicilian Defense: Dragon Variation | ten squares: c2, c4, g4, c6, d6, f6, d7, g7 … |
| B75 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations | ten squares: c2, f2, f3, c4, g4, c6, d6, f6 … |
| A33 | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | 11 squares: c1, e2, e3, e4, g4, e6, f6, g6 … |
| A42 | Modern Defense: Averbakh System | 11 squares: c1, g1, e3, d4, g4, c6, d6, c7 … |