Queen's Gambit Accepted: Classical Defense, Main Line (6… a6 7. Nc3)
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Nc3
The Queen's Gambit Accepted: Classical Defense, Main Line is a chess opening classified as ECO D27, reached after 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Nc3. It is a line of the Queen's Gambit Accepted. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 6 times by this move order. White won 83%, 0% were drawn and Black won 17%. The most popular continuation is 7… Nc6 (50% of games).
Engine evaluation: +0.14 (Stockfish, depth 46; best line 7… b5 8. Be2 Nbd7 9. d5 exd5 10. Nxd5)
- ECO
- D27
- Moves
- 13 plies
- FEN
rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/2N1PN2/PP3PPP/R1BQ1RK1 b kq - 1 7- PGN
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Nc3
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 1500-1999 | 2 | |
| 2000+ | 4 | |
| All | 6 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 7… Nc6 | 3 (50%) | |
| 7… b5 | 3 (50%) |
Master games
107 over-the-board games are classified under this line (White 43%, draw 28%, Black 29%). The strongest:
- GM Alexey Sarana (2662) – GM Shakhriyar Mamedyarov (2757) 0-1 · CGC KO 2022 · 2022-09-23
- GM Alexey Sarana (2662) – GM Shakhriyar Mamedyarov (2757) 1-0 · CGC KO 2022 · 2022-09-23
- GM Shakhriyar Mamedyarov (2740) – GM Nihal Sarin (2670) 1-0 · Tata Steel India Blitz · 2022-12-03
- GM Andrew Tang (2538) – GM Magnus Carlsen (2862) 1/2-1/2 · Carlsen-Tang Bullet 2021 · 2021-02-22
- GM Alexey Sarana (2668) – GM Nihal Sarin (2670) 1/2-1/2 · World Rapid 2022 · 2022-12-28
Search all games of the Queen's Gambit Accepted: Classical Defense, Main Line and its sub-variations
Highest-rated Lichess games
- teknasw (2674) – SHEFFFF (2448) 1-0 · 2026-09-04 · 180 + 0s
- Cuni_chess (2551) – SHEFFFF (2510) 1-0 · 2026-09-01 · 180 + 0s
- Cuni_chess (2552) – SHEFFFF (2508) 1-0 · 2026-09-01 · 180 + 0s
Comes from
Queen's Gambit Accepted: Classical Defense, Main Line (6. O-O a6) 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6
More Queen's Gambit Accepted lines (all)
- Queen's Gambit Accepted (2. c4 dxc4) D20
- Queen's Gambit Accepted: Accelerated Mannheim Variation D20
- Queen's Gambit Accepted: Central Variation, Alekhine System D20
- Queen's Gambit Accepted: Central Variation, Greco Variation D20
- Queen's Gambit Accepted: Central Variation, McDonnell Defense D20
- Queen's Gambit Accepted: Central Variation, McDonnell Defense, Somov Gambit D20
- Queen's Gambit Accepted: Central Variation, Modern Defense D20
- Queen's Gambit Accepted: Central Variation, Rubinstein Defense D20
- Queen's Gambit Accepted: Central Variation, Rubinstein Defense, Yefimov Gambit D20
- Queen's Gambit Accepted: Linares Variation D20
- Queen's Gambit Accepted: Old Variation D20
- Queen's Gambit Accepted: Old Variation, Billinger Gambit D20
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.