King's Gambit Accepted: King's Knight's Gambit (3… g5 4. Bc4)
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4
The King's Gambit Accepted: King's Knight's Gambit is a chess opening classified as ECO C37, reached after 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4. It is a line of the King's Gambit Accepted. Black is to move. 8 named lines continue from this position.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 6,457 times by this move order. White won 48%, 3% were drawn and Black won 49%. The most popular continuation is 4… g4 (36% of games).
Engine evaluation: −1.11 (Stockfish, depth 50; best line 4… g4 5. O-O gxf3 6. Qxf3 Qf6 7. d3)
- ECO
- C37
- Moves
- 7 plies
- FEN
rnbqkbnr/pppp1p1p/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R b KQkq - 1 4- PGN
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 817 | |
| 1500-1999 | 4,858 | |
| 2000+ | 782 | |
| All | 6,457 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 4… g4 | 2,324 (36%) | |
| 4… d6 | 1,238 (19%) | |
| 4… Bg7 Traditional Variation | 1,193 (18%) | |
| 4… Nc6 | 433 (7%) | |
| 4… h6 | 348 (5%) | |
| 4… f6 | 171 (3%) | |
| 4… c6 | 126 (2%) | |
| 4… Qe7 | 110 (2%) |
Master games
34 over-the-board games are classified under this line (White 41%, draw 6%, Black 53%). The strongest:
- GM Boris Savchenko (2556) – GM Ernesto Inarkiev (2664) 0-1 · ch-RUS Rapid 2015 · 2015-05-14
- GM Aziz Mert Erdogdu (2407) – GM Sanan Sjugirov (2680) 0-1 · Titled Tue 8th Feb Late · 2022-02-08
- FM Tian Sang (2287) – IM Yang Shen (2475) 1-0 · 24th North American Open · 2014-12-26
- FM Gleb Kaganskiy (2243) – FM Oleg Papayan (2246) 1-0 · Titled Tue 30th Aug Late · 2022-08-30
- FM Jose Garcia Molina (2261) – David Gasparyan (2142) 0-1 · Titled Tue 2nd May Late · 2023-05-02
Search all games of the King's Gambit Accepted: King's Knight's Gambit and its sub-variations
Highest-rated Lichess games
- nuitet989893 (2557) – Taynishpion2025 (2561) 0-1 · 2026-09-04 · 180 + 0s
- nuitet989893 (2538) – allblacksGOAT (2575) 1-0 · 2026-09-05 · 180 + 0s
- Hudson_Lowe (2569) – FM bartsimpson6 (2428) 0-1 · 2026-09-03 · 180 + 0s
Comes from
King's Gambit Accepted: King's Knight's Gambit (3. Nf3 g5) 1. e4 e5 2. f4 exf4 3. Nf3 g5
Continuations
- King's Gambit Accepted: Traditional Variation C38 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7
- King's Gambit Accepted: Australian Gambit C37 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. h4
- King's Gambit Accepted: Ghulam-Kassim Gambit (4… g4 5. d4) C37 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4
- King's Gambit Accepted: Lolli Gambit C37 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+
- King's Gambit Accepted: McDonnell Gambit C37 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Nc3
- King's Gambit Accepted: Muzio Gambit, Wild Muzio Gambit C37 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O
- King's Gambit Accepted: Salvio Gambit C37 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5
- King's Gambit Accepted: Middleton Countergambit C37 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 d6 5. O-O Bg4 6. h3 h5 7. hxg4 hxg4
More King's Gambit Accepted lines (all)
- King's Gambit Accepted C33
- King's Gambit Accepted: Basman Gambit C33
- King's Gambit Accepted: Bishop's Gambit C33
- King's Gambit Accepted: Bishop's Gambit, Anderssen Defense C33
- King's Gambit Accepted: Bishop's Gambit, Anderssen Variation C33
- King's Gambit Accepted: Bishop's Gambit, Bledow Countergambit C33
- King's Gambit Accepted: Bishop's Gambit, Bledow Variation C33
- King's Gambit Accepted: Bishop's Gambit, Boden Variation C33
- King's Gambit Accepted: Bishop's Gambit, Bogoljubow Defense C33
- King's Gambit Accepted: Bishop's Gambit, Bogoljubow Variation C33
- King's Gambit Accepted: Bishop's Gambit, Boren-Svenonius Variation C33
- King's Gambit Accepted: Bishop's Gambit, Bryan Countergambit C33
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.