B34 Sicilian Defense: Accelerated Dragon, Exchange Variation
B34 holds two named lines, all under the name Sicilian Defense. It leaves B32 (Sicilian Defense: Accelerated Dragon) with 5.Nxc6. White’s pieces and pawns attack 15 squares in Black’s half, the most of all 500 codes. When the reference line ends, White is three pawns up on material.
| # | White | Black |
|---|---|---|
| 1 | e4 | c5 |
| 2 | Nf3 | Nc6 |
| 3 | d4 | cxd4 |
| 4 | Nxd4 | g6 |
| 5 | Nxc6 |
Moves only B34 plays
Same as B35 up to 4...g6, then:
- 5.Nxc6 The knight on d4 takes the knight on c6, opening a line for the queen on d1, attacking the queen on d8.
Lines filed under B34
Both share the start 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 and then split two ways at White’s move 5.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| Sicilian Defense: Accelerated Dragon, Exchange Variation | 5.Nxc6 | 9 | White +3 |
| Sicilian Defense: Accelerated Dragon, Modern Variation | 5.Nc3 | 9 |
Sicilian Defense: Accelerated Dragon, Modern Variation
- 5.Nc3 The knight leaves b1 for c3, opening a line for the rook on a1, guarding the pawn on e4.
The road to B34
The position after 5.Nxc6
White has brought out the knight on c6; Black has not yet moved a knight or bishop. White has a half-open d-file; Black a half-open c-file. Black could capture with bxc6, dxc6. Undefended and attacked: the knight on c6. Black is to move and has 23 legal moves.
Codes that branch off from B34
The reference lines of one other code leave B34 from the position after 5.Nc3, each with its own moves.
| Code | Moves | Reference line |
|---|---|---|
| B35 | 5...Bg7 6.Be3 Nf6 7.Bc4 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation |
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| B36 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | four squares: c2, c4, d4, c6 |
| B06 | Modern Defense | five squares: g1, d2, c6, c7, b8 |
| B54 | Sicilian Defense: Dragon Variation, Accelerated Dragon | five squares: d4, c6, d6, d7, b8 |
| B10 | Caro-Kann Defense | six squares: g1, d2, c6, g6, g7, b8 |
| B12 | Caro-Kann Defense | six squares: g1, d4, c6, g6, g7, b8 |
| B30 | Sicilian Defense: Old Sicilian | six squares: d2, f3, c5, c6, g6, g7 |
| B31 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | six squares: f1, d2, f3, b5, c5, c6 |