King's Gambit Accepted: Cunningham Defense, Bertin Gambit (4… Bh4+ 5. g3)
1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3
The King's Gambit Accepted: Cunningham Defense, Bertin Gambit is a chess opening classified as ECO C35, reached after 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3. It is a line of the King's Gambit Accepted. Black is to move. 1 named line continues from this position.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 897 times by this move order. White won 59%, 1% were drawn and Black won 40%. The most popular continuation is 5… fxg3 (95% of games).
Engine evaluation: −0.63 (Stockfish, depth 38; best line 5… fxg3 6. O-O d5 7. exd5 Be7 8. d4)
- ECO
- C35
- Moves
- 9 plies
- FEN
rnbqk1nr/pppp1ppp/8/8/2B1Pp1b/5NP1/PPPP3P/RNBQK2R b KQkq - 0 5- PGN
1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 83 | |
| 1500-1999 | 737 | |
| 2000+ | 77 | |
| All | 897 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 5… fxg3 | 849 (95%) | |
| 5… Be7 | 36 (4%) | |
| 5… Bg5 | 4 (0%) | |
| 5… Bxg3+ | 2 (0%) | |
| 5… Bf6 | 2 (0%) | |
| 5… d5 | 1 (0%) | |
| 5… Nh6 | 1 (0%) | |
| 5… c6 | 1 (0%) |
Master games
2 over-the-board games are classified under this line (White 0%, draw 50%, Black 50%). The strongest:
- FM Paul-Cristian Rusan (2106) – FM Alexandre Bouget (2247) 0-1 · Titled Tuesday 6th Apr · 2021-04-06
- Miodrag Lazarevic (2075) – Stefan Tadic (2106) 1/2-1/2 · Belgrade Premier League · 2016-10-21
Highest-rated Lichess games
- Nuhijashari64 (2440) – ButterFlyPerfect (2504) 0-1 · 2026-09-05 · 180 + 0s
- ifyoucouldreedmymind (2420) – Jules13 (2291) 1-0 · 2026-09-06 · 180 + 2s
- Stefan2015 (2270) – naderalaeldin (2225) 0-1 · 2026-09-02 · 180 + 2s
Comes from
King's Gambit Accepted: Cunningham Defense 1. e4 e5 2. f4 exf4 3. Nf3 Be7
Continuations
- King's Gambit Accepted: Cunningham Defense, Bertin Gambit (6… gxh2+ 7. Kh1) C35 · 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 fxg3 6. O-O gxh2+ 7. Kh1
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.