King's Gambit Accepted: Bonsch-Osmolovsky Variation
1. e4 e5 2. f4 exf4 3. Nf3 Ne7
The King's Gambit Accepted: Bonsch-Osmolovsky Variation is a chess opening classified as ECO C34, reached after 1. e4 e5 2. f4 exf4 3. Nf3 Ne7. It is a line of the King's Gambit Accepted. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 1,561 times by this move order. White won 46%, 3% were drawn and Black won 51%. The most popular continuation is 4. d4 (48% of games).
Engine evaluation: +0.12 (Stockfish, depth 50; best line 4. Nc3 d5 5. d4 dxe4 6. Nxe4 Nbc6)
- ECO
- C34
- Moves
- 6 plies
- FEN
rnbqkb1r/ppppnppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - 2 4- PGN
1. e4 e5 2. f4 exf4 3. Nf3 Ne7
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 160 | |
| 1500-1999 | 1,129 | |
| 2000+ | 272 | |
| All | 1,561 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 4. d4 | 749 (48%) | |
| 4. Bc4 | 729 (47%) | |
| 4. h4 | 32 (2%) | |
| 4. Nc3 | 20 (1%) | |
| 4. d3 | 11 (1%) | |
| 4. Be2 | 10 (1%) | |
| 4. e5 | 4 (0%) | |
| 4. Qe2 | 1 (0%) |
Master games
212 over-the-board games are classified under this line (White 30%, draw 17%, Black 53%). The strongest:
- GM Ian Nepomniachtchi (2779) – GM Peter Svidler (2688) 1-0 · World Rapid Team 2023 · 2023-08-28
- GM Peter Svidler (2762) – GM Etienne Bacrot (2702) 0-1 · Match of Champions 2016 · 2016-05-20
- GM Richard Rapport (2720) – GM Etienne Bacrot (2719) 1/2-1/2 · Bundesliga 2014-15 · 2014-11-08
- GM Richard Rapport (2715) – GM Etienne Bacrot (2692) 1/2-1/2 · ACP Masters GpB 2015 · 2015-12-08
- GM Ian Nepomniachtchi (2771) – GM Benjamin Bok (2621) 1-0 · Titled Tue 12th Sep Early · 2023-09-12
Search all games of the King's Gambit Accepted: Bonsch-Osmolovsky Variation and its sub-variations
Highest-rated Lichess games
- C0LTR4N3 (2305) – emandr (2602) 1-0 · 2026-09-06 · 300 + 0s
- ph0rial (2367) – cavapiker (2497) 0-1 · 2026-09-02 · 180 + 0s
- Shustrick (2421) – vasf982 (2424) 0-1 · 2026-09-02 · 600 + 0s
Comes from
King's Gambit Accepted: King's Knight's Gambit (2… exf4 3. Nf3) 1. e4 e5 2. f4 exf4 3. Nf3
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.