B17 Caro-Kann Defense: Karpov Variation
B17 holds eight named lines, all under the name Caro-Kann Defense. It leaves B15 (Caro-Kann Defense: Main Line) with 4...Nd7. Its deepest line, Caro-Kann Defense: Karpov Variation, Modern Main Line, runs to 10.Qxe4, the second-longest of the 10 Caro-Kann Defense codes. With eight named lines it is the fifth-largest code of the 10 Caro-Kann Defense codes.
| # | White | Black |
|---|---|---|
| 1 | e4 | c6 |
| 2 | d4 | d5 |
| 3 | Nd2 | dxe4 |
| 4 | Nxe4 | Nd7 |
Moves only B17 plays
Same as B16 up to 4.Nxe4, then:
- 4...Nd7 The knight leaves b8 for d7, opening a line for the rook on a8.
Lines filed under B17
All eight share the start 1.e4 c6 2.d4 d5 and then split two ways at White’s move 3.
| Name | After the shared start | Plies |
|---|---|---|
| Caro-Kann Defense: Karpov Variation | 3.Nd2 dxe4 4.Nxe4 Nd7 | 8 |
| Caro-Kann Defense: Karpov Variation, Modern Variation | 3.Nd2 dxe4 4.Nxe4 Nd7 5.Ng5 | 9 |
| Caro-Kann Defense: Karpov Variation, Modern Variation, Ivanchuk Defense | 3.Nd2 dxe4 4.Nxe4 Nd7 5.Ng5 Ndf6 | 10 |
| Caro-Kann Defense: Karpov Variation, Modern Variation, Kasparov Attack | 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Ng3 | 11 |
| Caro-Kann Defense: Karpov Variation, Tiviakov-Fischer Attack | 3.Nd2 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Nxf6+ Nxf6 | 12 |
| Caro-Kann Defense: Karpov Variation, Smyslov Variation | 3.Nd2 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6 | 14 |
| Caro-Kann Defense: Karpov Variation, Smyslov Variation, Main Line | 3.Nd2 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6 8.Bb3 | 15 |
| Caro-Kann Defense: Karpov Variation, Modern Main Line | 3.Nd2 dxe4 4.Nxe4 Nd7 5.Ng5 Ngf6 6.Bd3 e6 7.N1f3 Bd6 8.Qe2 h6 9.Ne4 Nxe4 10.Qxe4 | 19 |
The road to B17
- 1.e4 … 2...d5four earlier stops: B00, B10, B12
- 3.Nd2B12 Modern Variation
- 4.Nxe4B15 Main Line
- 4...Nd7B17
The position after 4...Nd7
White has brought out the knight on e4; Black the knight on d7. White has a half-open e-file; Black a half-open d-file. White is to move and has 42 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| B12 | Caro-Kann Defense | four squares: b1, e4, d7, b8 |
| B18 | Caro-Kann Defense: Classical Variation | four squares: f5, d7, b8, c8 |
| B13 | Caro-Kann Defense: Exchange Variation | five squares: b1, e4, d5, d7, b8 |
| B10 | Caro-Kann Defense | six squares: b1, d2, d4, e4, d7, b8 |
| A40 | Queen’s Pawn Game | seven squares: b1, e2, e4, c6, c7, d7, b8 |
| A43 | Benoni Defense: Old Benoni | seven squares: b1, e2, e4, c5, c6, d7, b8 |
| B32 | Sicilian Defense: Open | seven squares: b1, g1, f3, e4, c5, c6, d7 |