King's Gambit Accepted: King's Knight's Gambit (3… g5 4. h4)
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4
The King's Gambit Accepted: King's Knight's Gambit is a chess opening classified as ECO C39, reached after 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4. It is a line of the King's Gambit Accepted. Black is to move. 2 named lines continue from this position.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 2,802 times by this move order. White won 52%, 3% were drawn and Black won 45%. The most popular continuation is 4… g4 (78% of games).
Engine evaluation: −0.36 (Stockfish, depth 48; best line 4… g4 5. Ne5 d6 6. Nxg4 Nc6 7. Nf2)
- ECO
- C39
- Moves
- 7 plies
- FEN
rnbqkbnr/pppp1p1p/8/6p1/4Pp1P/5N2/PPPP2P1/RNBQKB1R b KQkq - 0 4- PGN
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 371 | |
| 1500-1999 | 1,949 | |
| 2000+ | 482 | |
| All | 2,802 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 4… g4 | 2,187 (78%) | |
| 4… f6 | 336 (12%) | |
| 4… Be7 | 90 (3%) | |
| 4… gxh4 | 62 (2%) | |
| 4… Bh6 | 38 (1%) | |
| 4… h6 | 31 (1%) | |
| 4… d5 | 25 (1%) | |
| 4… Bg7 | 9 (0%) |
Master games
18 over-the-board games are classified under this line (White 22%, draw 22%, Black 56%). The strongest:
- Stoofvlees II d9 (3541) – Reckless 0.10.0-dev-9057bc13 (3749) 1/2-1/2 · TCEC 29 Gambit Bonus 2026 · 2026-05-31
- Reckless 0.10.0-dev-9057bc13 (3749) – Stoofvlees II d9 (3541) 1/2-1/2 · TCEC 29 Gambit Bonus 2026 · 2026-05-31
- GM Ian Nepomniachtchi (2723) – FM Oliver Wartiovaara (2288) 1-0 · Titled Tue 3rd Feb 2026 · 2026-02-03
- FM Artem Uskov (2376) – GM Surya Shekhar Ganguly (2582) 1-0 · World Blitz 2022 · 2022-12-30
- FM Atilla Kuru (2312) – GM Stefan Bromberger (2485) 0-1 · 2nd Munich Festival Open · 2024-06-02
Search all games of the King's Gambit Accepted: King's Knight's Gambit and its sub-variations
Highest-rated Lichess games
- GM second_life (2537) – danylo03 (2612) 0-1 · 2026-09-07 · 180 + 2s
- variastrix93 (2445) – FM Metadust (2509) 0-1 · 2026-09-03 · 180 + 0s
- Greifax (2516) – RomanovRG (2397) 1-0 · 2026-09-02 · 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: Allgaier Gambit C39 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5
- King's Gambit Accepted: Kieseritzky Gambit C39 · 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5
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.