King's Gambit Accepted: Bishop's Gambit, Cozio Defense
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Statistics from Lichess
233,564 games: White 53.3% / Draw 3.7% / Black 43.0%
| Next move | Games | White / Draw / BlackW / D / B |
|---|---|---|
| King's Gambit Accepted: Bishop's Gambit, Bogoljubow Variation | 118,056118K | |
| 43,68244K | ||
| 35,15335K | ||
| 27,64228K | ||
| 4,1384,138 | ||
| 2,3182,318 | ||
| 968968 | ||
| 932932 |
Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 9, 2026
Engine evaluation
−0.28 The position is about equal
Best play: 4. Nc3 c6 5. d4 d5 6. exd5 cxd5 7. Bb5+ Nc6 8. Bxf4 Be7
Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.
By rating
Rating changes little here: Black scores 47% under 1400, 48% at 2200 and up and 54% in master games (wins plus half the draws).
| Players | Games | White / Draw / BlackW / D / B |
|---|---|---|
| Under 1400 | 108K | |
| 1400–1799 | 195K | |
| 1800–2199 | 113K | |
| 2200 and up | 20K | |
| Masters, over the board | 337 |
Master games
- Nepomniachtchi, I. – Aronian, L.
- Short, N. D. – Kasparov, G.
- Ivanchuk, V. – Ding Liren
- Ivanchuk, V. – Giri, A.
- Morozevich, A. – Anand, V.
Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 27, 2026
Overview
King's Gambit Accepted: Bishop's Gambit, Cozio Defense (ECO C33, Open Games) is a gambit in the King's Gambit Accepted: Bishop's Gambit, reached after 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 (3 moves).
In 233,564 rated Lichess games between players rated 1600 to 2500, White won 53.3%, Black 43.0% and 3.7% were drawn. White's most played move here is 4. Nc3, in 51% of those games.
It continues into one named variation, King's Gambit Accepted: Bishop's Gambit, Bogoljubow Variation. In all, 3 named lines continue from it.
Written from the Lichess opening list and explorer. Know this line well? Write about it.
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How to play against the King's Gambit Accepted: Bishop's Gambit, Cozio Defense
The most played answer, 4. Nc3 (King's Gambit Accepted: Bishop's Gambit, Bogoljubow Variation), also scores best for White: 57.4%, with White winning 55.5% and Black 40.6% of 118K games. Of the main answers, 4. e5 scores lowest: 52.7%. Stockfish's first choice is also 4. Nc3.
Main answers: those played in at least 5% of these games. Score: White's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings
Popularity by year
The King's Gambit Accepted: Bishop's Gambit, Cozio Defense is played less than half as often as in 2016: 0.0069% of Lichess games in 2025, down from 0.014%.
Numbers by year
| Year | Share of games | Games |
|---|---|---|
| 2016 | 0.014% | 5,024 |
| 2017 | 0.013% | 6,893 |
| 2018 | 0.012% | 9,266 |
| 2019 | 0.01% | 13,058 |
| 2020 | 0.011% | 31,266 |
| 2021 | 0.0097% | 38,136 |
| 2022 | 0.0096% | 36,136 |
| 2023 | 0.0085% | 31,986 |
| 2024 | 0.0074% | 26,426 |
| 2025 | 0.0069% | 23,958 |
| 2026 (Jan–Apr) | 0.0065% | 7,146 |
Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling
Variations (1)
Transpositions
Cite this page
Caissa Codex. “King's Gambit Accepted: Bishop's Gambit, Cozio Defense (C33)”. Lichess data as of 9 Nov 2026. https://chesscodex.org/openings/kings-gambit-accepted-bishops-gambit-cozio-defense