King's Gambit Accepted: Rosentreter Gambit, Bird Gambit
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5 Qh4+ 6. g3
The King's Gambit Accepted: Rosentreter Gambit, Bird Gambit is a chess opening classified as ECO C37, reached after 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5 Qh4+ 6. g3. It is a line of the King's Gambit Accepted. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 123 times by this move order. White won 41%, 1% were drawn and Black won 58%. The most popular continuation is 6… fxg3 (98% of games).
Engine evaluation: −0.55 (Stockfish, depth 44; best line 6… fxg3 7. Qxg4 Qxg4 8. Nxg4 Nc6 9. c3)
- ECO
- C37
- Moves
- 11 plies
- FEN
rnb1kbnr/pppp1p1p/8/4N3/3PPppq/6P1/PPP4P/RNBQKB1R b KQkq - 0 6- PGN
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5 Qh4+ 6. g3
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 28 | |
| 1500-1999 | 81 | |
| 2000+ | 14 | |
| All | 123 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 6… fxg3 | 120 (98%) | |
| 6… f3 | 2 (2%) |
Master games
2 over-the-board games are classified under this line (White 0%, draw 50%, Black 50%). The strongest:
- IM Johan Furhoff (2311) – GM Stefan Bromberger (2525) 0-1 · 46th Rilton Cup 2016-17 · 2016-12-30
- Lars Milde (1926) – Matthias Budzyn (2139) 1/2-1/2 · chessemy Open 2022 · 2022-01-30
Highest-rated Lichess games
- T-80BVM (2594) – FM Alexboy14 (2740) 1-0 · 2026-09-04 · 180 + 0s
- Dam0n11 (2342) – CEVLRL (2327) 0-1 · 2026-09-03 · 180 + 0s
- NM IgnacioCavadini (2367) – laeroaw (2265) 1-0 · 2026-09-06 · 180 + 0s
Comes from
King's Gambit Accepted: Sörensen Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 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.