Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 O-O 6. e3 c6
The Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense is a chess opening classified as ECO D37, reached after 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 O-O 6. e3 c6. It is a line of the Queen's Gambit Declined. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 81 times by this move order. White won 56%, 6% were drawn and Black won 38%. The most popular continuation is 7. Bd3 (37% of games).
Engine evaluation: +0.33 (Stockfish, depth 50; best line 7. Bd3 dxc4 8. Bxc4 Nbd7 9. O-O Nh5)
- ECO
- D37
- Moves
- 12 plies
- FEN
rnbq1rk1/pp2bppp/2p1pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - 0 7- PGN
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 O-O 6. e3 c6
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 4 | |
| 1500-1999 | 38 | |
| 2000+ | 39 | |
| All | 81 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 7. Bd3 | 30 (37%) | |
| 7. c5 | 13 (16%) | |
| 7. Be2 | 9 (11%) | |
| 7. Rc1 | 6 (7%) | |
| 7. h3 | 6 (7%) | |
| 7. cxd5 | 4 (5%) | |
| 7. Qc2 | 3 (4%) | |
| 7. Qb3 | 3 (4%) |
Master games
65 over-the-board games are classified under this line (White 58%, draw 13%, Black 29%). The strongest:
- GM Sergey Grigoriants (2603) – GM Levente Vajda (2566) 0-1 · TCh-HUN 2015-16 · 2015-11-07
- GM Aleksey Goganov (2601) – FM Konstantin Keosidi (2401) 0-1 · Pacific Meridian 2015 · 2015-07-20
- IM Prasanna Raghuram Rao (2392) – GM Azer Mirzoev (2518) 1/2-1/2 · 6th Kolkata Open · 2013-12-09
- GM Abhijit Kunte (2487) – Aniruddha Deshpande (2270) 1/2-1/2 · 51st ch-IND B 2013 · 2013-10-15
- Ziji Zhang (2355) – Zeyu Xiang (2395) 1-0 · ch-CHN Rapid 2017 · 2017-12-07
Highest-rated Lichess games
- FM sergeikim2003 (2513) – yopchess (2470) 1/2-1/2 · 2026-09-06 · 180 + 0s
- alexa0112358 (2499) – ThisuraDM (2402) 1-0 · 2026-09-04 · 180 + 0s
- FM sergeikim2003 (2481) – akk_nov_1 (2382) 1-0 · 2026-09-07 · 180 + 0s
Comes from
Queen's Gambit Declined: Normal Defense 1. d4 d5 2. c4 e6 3. Nc3 Nf6
More Queen's Gambit Declined lines (all)
- Queen's Gambit Declined: Baltic Defense, Pseudo-Slav D02
- Queen's Gambit Declined: Austrian Attack, Salvio Countergambit D06
- Queen's Gambit Declined: Austrian Defense D06
- Queen's Gambit Declined: Austrian Defense, Gusev Countergambit D06
- Queen's Gambit Declined: Austrian Defense, Haberditz Variation D06
- Queen's Gambit Declined: Baltic Defense D06
- Queen's Gambit Declined: Baltic Defense, Argentinian Gambit D06
- Queen's Gambit Declined: Baltic Defense, Pseudo-Chigorin D06
- Queen's Gambit Declined: Baltic Defense, Queen Attack D06
- Queen's Gambit Declined: Baltic Defense, Queen Attack Deferred D06
- Queen's Gambit Declined: Marshall Defense D06
- Queen's Gambit Declined: Marshall Defense, Tan Gambit D06
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.