Blackmar-Diemer Gambit Accepted: Pietrowsky Defense
1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nc6
The Blackmar-Diemer Gambit Accepted: Pietrowsky Defense is a chess opening classified as ECO D00, reached after 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nc6. It is a line of the Blackmar-Diemer Gambit Accepted. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 468 times by this move order. White won 57%, 3% were drawn and Black won 40%. The most popular continuation is 6. Bb5 (41% of games).
Engine evaluation: −0.13 (Stockfish, depth 44; best line 6. a3 a6 7. Be3 g6 8. Qd2 Bg7)
- ECO
- D00
- Moves
- 10 plies
- FEN
r1bqkb1r/ppp1pppp/2n2n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - 1 6- PGN
1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nc6
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 227 | |
| 1500-1999 | 235 | |
| 2000+ | 6 | |
| All | 468 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 6. Bb5 | 190 (41%) | |
| 6. Be3 | 80 (17%) | |
| 6. Bd3 | 69 (15%) | |
| 6. Bc4 | 53 (11%) | |
| 6. d5 | 40 (9%) | |
| 6. a3 | 15 (3%) | |
| 6. Bg5 | 8 (2%) | |
| 6. h3 | 6 (1%) |
Master games
4 over-the-board games are classified under this line (White 50%, draw 0%, Black 50%). The strongest:
- CM Michael Wiander (2150) – Tom Rydstrom (2156) 1-0 · Malmo Open 2013 · 2013-12-15
- CM Kerry Stead (1937) – FM Aisen Mestnikov (2077) 0-1 · Titled Tue 13th Aug Early · 2024-08-13
Search all games of the Blackmar-Diemer Gambit Accepted: Pietrowsky Defense and its sub-variations
Highest-rated Lichess games
- CM Blind_mole1 (2577) – Sherif-bandery2006 (2155) 1-0 · 2026-09-03 · 180 + 2s
- REXDINGANI (2252) – russian3 (2187) 1-0 · 2026-09-06 · 180 + 0s
- Wulf1967 (2193) – Newstein_96 (2221) 0-1 · 2026-09-05 · 600 + 0s
Comes from
Blackmar-Diemer Gambit Accepted 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3
More Blackmar-Diemer Gambit Accepted lines (all)
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Mad Dog Attack D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Nimzowitsch Attack D00
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Studier Attack D00
- Blackmar-Diemer Gambit Accepted: Euwe Defense D00
- Blackmar-Diemer Gambit Accepted: Euwe Defense, Duthilleul Gambit D00
- Blackmar-Diemer Gambit Accepted: Euwe Defense, Zilbermints Gambit D00
- Blackmar-Diemer Gambit Accepted: Gunderam Defense D00
- Blackmar-Diemer Gambit Accepted: Gunderam Defense, Stader Variation D00
- Blackmar-Diemer Gambit Accepted: Holwell Defense D00
- Blackmar-Diemer Gambit Accepted: Kaulich Defense D00
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.