C34 King’s Gambit Accepted: King’s Knight’s Gambit
C34 holds 13 named lines, all under the name King’s Gambit. It leaves C33 (King’s Gambit Accepted) with 3.Nf3. When the reference line ends, Black is one pawn up on material. Lines of six other codes continue from its position, the third-widest spread of the 10 King’s Gambit codes. At five plies, its reference line is the fourth-shortest of the 10 King’s Gambit codes.
| # | White | Black |
|---|---|---|
| 1 | e4 | e5 |
| 2 | f4 | exf4 |
| 3 | Nf3 |
The move that completes C34
The reference line of C35 plays all of these moves and continues beyond them; C34 is the position reached at 3.Nf3.
- 3.Nf3 The knight leaves g1 for f3, opening a line for the rook on h1.
Lines filed under C34
All 13 share their first five plies, the whole reference line and then split eight ways at Black’s move 3.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| King’s Gambit Accepted: King’s Knight’s Gambit | (the shared start itself) | 5 | Black +1 |
| King’s Gambit Accepted: Becker Defense | 3...h6 | 6 | Black +1 |
| King’s Gambit Accepted: Bonsch-Osmolovsky Variation | 3...Ne7 | 6 | Black +1 |
| King’s Gambit Accepted: Fischer Defense | 3...d6 | 6 | Black +1 |
| King’s Gambit Accepted: Gianutio Countergambit | 3...f5 | 6 | Black +1 |
| King’s Gambit Accepted: King’s Knight’s Gambit | 3...g5 | 6 | Black +1 |
| King’s Gambit Accepted: MacLeod Defense | 3...Nc6 | 6 | Black +1 |
| King’s Gambit Accepted: Schallopp Defense | 3...Nf6 | 6 | Black +1 |
| King’s Gambit Accepted: Wagenbach Defense | 3...h5 | 6 | Black +1 |
| King’s Gambit Accepted: Fischer Defense, Schulder Gambit | 3...d6 4.b4 | 7 | Black +1 |
| King’s Gambit Accepted: Fischer Defense, Spanish Variation | 3...d6 4.d4 Nf6 5.Bd3 | 9 | Black +1 |
| King’s Gambit Accepted: Schallopp Defense, Tashkent Attack | 3...Nf6 4.e5 Nh5 5.g4 | 9 | Black +1 |
| King’s Gambit Accepted: Greco Gambit | 3...d6 4.Bc4 h6 5.d4 g5 6.h4 Bg7 | 12 | Black +1 |
The road to C34
- 1.e4 … 1...e5two earlier stops: B00, C20
- 2.f4C30 King’s Gambit
- 2...exf4C33 King’s Gambit Accepted
- 3.Nf3C34
The position after 3.Nf3
White has brought out the knight on f3; Black has not yet moved a knight or bishop. White has a half-open f-file; Black a half-open e-file. Black is to move and has 29 legal moves.
Codes that branch off from C34
The reference lines of four other codes leave C34 from two of its named positions; “From” gives the last part of that position’s name.
| Code | From | Moves | Reference line |
|---|---|---|---|
| C35 | King’s Knight’s Gambit | 3...Be7 | King’s Gambit Accepted: Cunningham Defense |
| C36 | King’s Knight’s Gambit | 3...d5 | King’s Gambit Accepted: Modern Defense |
| C37 | King’s Knight’s Gambit | 4.Bc4 | King’s Gambit Accepted: King’s Knight’s Gambit |
| C39 | King’s Knight’s Gambit | 4.h4 | King’s Gambit Accepted: King’s Knight’s Gambit |
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| C40 | King’s Knight Opening | three squares: f2, f4, e5 |
| C30 | King’s Gambit | four squares: g1, f3, f4, e5 |
| A04 | Zukertort Opening | five squares: e2, f2, e4, f4, e7 |
| B00 | King’s Pawn Game | five squares: g1, f2, f3, f4, e7 |
| B27 | Sicilian Defense | five squares: f2, f4, c5, c7, e7 |
| B40 | Sicilian Defense: French Variation | five squares: f2, f4, c5, e6, c7 |
| C00 | French Defense | five squares: g1, f2, f3, f4, e6 |
Where lines continue from here
Other move orders
- King’s Gambit Accepted: Greco Gambit is also reached inside C38 King’s Gambit Accepted: Greco Gambit, whose order is 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 Bg7 5.h4 h6 6.d4 d6.