C33 King’s Gambit Accepted
C33 holds 46 named lines, all under the name King’s Gambit. It leaves C30 (King’s Gambit) with 2...exf4. With 46 named lines it is the largest code of the 10 King’s Gambit codes. White’s pieces and pawns attack five squares in Black’s half, the fewest of the 10 King’s Gambit codes. When the reference line ends, Black is one pawn up on material.
| # | White | Black |
|---|---|---|
| 1 | e4 | e5 |
| 2 | f4 | exf4 |
The move that completes C33
The reference line of C34 plays all of these moves and continues beyond them; C33 is the position reached at 2...exf4.
- 2...exf4 The e-pawn takes the pawn on f4, covering e3 and g3.
Lines filed under C33
All 46 share their first four plies, the whole reference line and then split 16 ways at White’s move 3.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| King’s Gambit Accepted | (the shared start itself) | 4 | Black +1 |
| King’s Gambit Accepted: Basman Gambit | 3.Qe2 | 5 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit | 3.Bc4 | 5 | Black +1 |
| King’s Gambit Accepted: Breyer Gambit | 3.Qf3 | 5 | Black +1 |
| King’s Gambit Accepted: Carrera Gambit | 3.Qh5 | 5 | Black +1 |
| King’s Gambit Accepted: Dodo Variation | 3.Qg4 | 5 | Black +1 |
| King’s Gambit Accepted: Eisenberg Variation | 3.Nh3 | 5 | Black +1 |
| King’s Gambit Accepted: Gaga Gambit | 3.g3 | 5 | Black +1 |
| King’s Gambit Accepted: Mason-Keres Gambit | 3.Nc3 | 5 | Black +1 |
| King’s Gambit Accepted: Orsini Gambit | 3.b3 | 5 | Black +1 |
| King’s Gambit Accepted: Paris Gambit | 3.Ne2 | 5 | Black +1 |
| King’s Gambit Accepted: Schurig Gambit, with Bb5 | 3.Bb5 | 5 | Black +1 |
| King’s Gambit Accepted: Schurig Gambit, with Bd3 | 3.Bd3 | 5 | Black +1 |
| King’s Gambit Accepted: Stamma Gambit | 3.h4 | 5 | Black +1 |
| King’s Gambit Accepted: Tartakower Gambit | 3.Be2 | 5 | Black +1 |
| King’s Gambit Accepted: Tumbleweed | 3.Kf2 | 5 | Black +1 |
| King’s Gambit Accepted: Villemson Gambit | 3.d4 | 5 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Anderssen Defense | 3.Bc4 g5 | 6 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Bledow Variation | 3.Bc4 d5 | 6 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Cozio Defense | 3.Bc4 Nf6 | 6 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Gianutio Gambit | 3.Bc4 f5 | 6 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Kieseritzky Gambit | 3.Bc4 b5 | 6 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Lopez Defense | 3.Bc4 c6 | 6 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Maurian Defense | 3.Bc4 Nc6 | 6 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Steinitz Defense | 3.Bc4 Ne7 | 6 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Bogoljubow Variation | 3.Bc4 Nf6 4.Nc3 | 7 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Anderssen Variation | 3.Bc4 d5 4.Bxd5 c6 | 8 | |
| King’s Gambit Accepted: Bishop’s Gambit, Bledow Countergambit | 3.Bc4 d5 4.Bxd5 Nf6 | 8 | |
| King’s Gambit Accepted: Bishop’s Gambit, Boden Variation | 3.Bc4 Qh4+ 4.Kf1 Nc6 | 8 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Bogoljubow Defense | 3.Bc4 Nf6 4.Nc3 c6 | 8 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Bryan Countergambit | 3.Bc4 Qh4+ 4.Kf1 b5 | 8 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Cozio Variation | 3.Bc4 Qh4+ 4.Kf1 d6 | 8 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, First Jaenisch Variation | 3.Bc4 Qh4+ 4.Kf1 Nf6 | 8 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Greco Variation | 3.Bc4 Qh4+ 4.Kf1 Bc5 | 8 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Lopez Variation | 3.Bc4 Qh4+ 4.Kf1 g5 | 8 | Black +1 |
| King’s Gambit Accepted: Tartakower Gambit, Weiss Defense | 3.Be2 f5 4.exf5 d6 | 8 | |
| King’s Gambit Accepted: Bishop’s Gambit, Classical Defense, Cozio Attack | 3.Bc4 Qh4+ 4.Kf1 g5 5.Qf3 | 9 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Paulsen Attack | 3.Bc4 Nf6 4.Nc3 Bb4 5.e5 | 9 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Boren-Svenonius Variation | 3.Bc4 d5 4.Bxd5 Qh4+ 5.Kf1 Bd6 | 10 | |
| King’s Gambit Accepted: Bishop’s Gambit, Chigorin’s Attack | 3.Bc4 Qh4+ 4.Kf1 d5 5.Bxd5 g5 6.g3 | 11 | |
| King’s Gambit Accepted: Bishop’s Gambit, McDonnell Attack | 3.Bc4 Qh4+ 4.Kf1 g5 5.Nc3 Bg7 6.g3 | 11 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, Classical Defense | 3.Bc4 Qh4+ 4.Kf1 Ne7 5.Nc3 g5 6.d4 Bg7 | 12 | Black +1 |
| King’s Gambit Accepted: Lopez-Gianutio Countergambit, Hein Variation | 3.Bc4 f5 4.Qe2 Qh4+ 5.Kd1 fxe4 6.Nc3 Kd8 | 12 | Black +2 |
| King’s Gambit Accepted: Bishop’s Gambit, Fraser Variation | 3.Bc4 Qh4+ 4.Kf1 g5 5.Nc3 Bg7 6.g3 fxg3 7.Qf3 | 13 | Black +2 |
| King’s Gambit Accepted: Bishop’s Gambit, Grimm Attack | 3.Bc4 Qh4+ 4.Kf1 g5 5.Nc3 Bg7 6.d4 d6 7.e5 | 13 | Black +1 |
| King’s Gambit Accepted: Bishop’s Gambit, McDonnell Attack | 3.Bc4 Qh4+ 4.Kf1 g5 5.Nc3 Bg7 6.d4 Ne7 7.g3 | 13 | Black +1 |
The road to C33
- 1.e4one earlier stop: B00
- 1...e5C20 King’s Pawn Game
- 2.f4C30 King’s Gambit
- 2...exf4C33
The position after 2...exf4
White has a half-open f-file; Black a half-open e-file. White is to move and has 29 legal moves.
Codes that branch off from C33
The reference lines of one other code leave C33 from the position after 2...exf4, each with its own moves.
| Code | Moves | Reference line |
|---|---|---|
| C34 | 3.Nf3 | King’s Gambit Accepted: King’s Knight’s Gambit |
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| B00 | King’s Pawn Game | three squares: f2, f4, e7 |
| C00 | French Defense | three squares: f2, f4, e6 |
| C20 | King’s Pawn Game | three squares: f2, f4, e5 |
| A02 | Bird Opening | four squares: e2, e4, f4, e7 |
| B21 | Sicilian Defense: McDonnell Attack | four squares: f4, c5, c7, e7 |
| C21 | Center Game Accepted | four squares: d2, f2, d4, f4 |
| C31 | King’s Gambit Declined: Falkbeer Countergambit | four squares: f4, d5, e5, d7 |
Where lines continue from here
Ninety-two named lines filed under other codes pass through the position after 2...exf4. Besides the codes above, they belong to C25, C35, C36, C37, C38, C39.