Blumenfeld Countergambit
1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5
The Blumenfeld Countergambit is a chess opening classified as ECO E10, reached after 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5. White is to move. 2 named lines continue from this position.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 82 times by this move order. White won 45%, 5% were drawn and Black won 50%. The most popular continuation is 5. dxe6 (50% of games).
Engine evaluation: +0.47 (Stockfish, depth 60; best line 5. Bf4 b4 6. e4 d6 7. Bd3 a5)
- ECO
- E10
- Moves
- 8 plies
- FEN
rnbqkb1r/p2p1ppp/4pn2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 5- PGN
1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 1 | |
| 1500-1999 | 7 | |
| 2000+ | 74 | |
| All | 82 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 5. dxe6 | 41 (50%) | |
| 5. cxb5 | 11 (13%) | |
| 5. e4 | 8 (10%) | |
| 5. b3 | 7 (9%) | |
| 5. e3 | 4 (5%) | |
| 5. Nc3 | 4 (5%) | |
| 5. a4 | 3 (4%) | |
| 5. Bg5 Duz-Khotimirsky Variation | 2 (2%) |
Master games
419 over-the-board games are classified under this line (White 41%, draw 22%, Black 37%). The strongest:
- Integral 7.0.0-dev-453c1dc4 (3735) – PlentyChess 7.0.55 (3693) 1-0 · TCEC 29 Premier 2026 · 2026-03-10
- PlentyChess 7.0.55 (3693) – Integral 7.0.0-dev-453c1dc4 (3735) 1-0 · TCEC 29 Premier 2026 · 2026-03-07
- Stoofvlees II d9 (3541) – Reckless 0.10.0-dev-9057bc13 (3749) 1/2-1/2 · TCEC 29 Gambit Bonus 2026 · 2026-05-28
- KomodoDragon 3.3 (3583) – Caissa 1.21.2 (3545) 1/2-1/2 · TCEC 27 Premier 2024 · 2024-12-13
- Caissa 1.21.2 (3545) – KomodoDragon 3.3 (3583) 1/2-1/2 · TCEC 27 Premier 2024 · 2024-12-11
Search all games of the Blumenfeld Countergambit and its sub-variations
Highest-rated Lichess games
- Italiangangster (2674) – Kingkennytv (2668) 0-1 · 2026-09-07 · 180 + 0s
- GM CXCX83 (2641) – Kingkennytv (2652) 0-1 · 2026-09-05 · 180 + 0s
- Severus-Snape-1960 (2614) – Kingkennytv (2664) 0-1 · 2026-09-02 · 180 + 0s
Comes from
Indian Defense: Anti-Nimzo-Indian 1. d4 Nf6 2. c4 e6 3. Nf3
Continuations
- Blumenfeld Countergambit: Duz-Khotimirsky Variation E10 · 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5
- Blumenfeld Countergambit Accepted E10 · 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5
More Blumenfeld Countergambit lines (all)
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.