Indian Defense: Budapest Gambit Accepted, Main Line, Rubinstein Variation
1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4
The Indian Defense: Budapest Gambit Accepted, Main Line, Rubinstein Variation is a chess opening classified as ECO A52, reached after 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4. It is a line of the Indian Defense. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 1,457 times by this move order. White won 54%, 6% were drawn and Black won 40%. The most popular continuation is 4… Nc6 (53% of games).
Engine evaluation: +0.49 (Stockfish, depth 46; best line 4… Bb4+ 5. Nc3 Bxc3+ 6. bxc3 Qe7 7. Nf3)
- ECO
- A52
- Moves
- 7 plies
- FEN
rnbqkb1r/pppp1ppp/8/4P3/2P2Bn1/8/PP2PPPP/RN1QKBNR b KQkq - 2 4- PGN
1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 80 | |
| 1500-1999 | 688 | |
| 2000+ | 689 | |
| All | 1,457 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 4… Nc6 | 766 (53%) | |
| 4… g5 | 227 (16%) | |
| 4… Bb4+ | 220 (15%) | |
| 4… Bc5 | 187 (13%) | |
| 4… d6 | 29 (2%) | |
| 4… f6 | 13 (1%) | |
| 4… Qe7 | 8 (1%) | |
| 4… Nxf2 | 2 (0%) |
Master games
1,819 over-the-board games are classified under this line (White 51%, draw 21%, Black 28%). The strongest:
- LCZero 0.30-dag-a9b25c2b-BT2-3 (3598) – Stockfish dev-20230409-b36d39d (3639) 1/2-1/2 · TCEC 24 Superfinal 2023 · 2023-04-14
- Stockfish dev-20230409-b36d39d (3639) – LCZero 0.30-dag-a9b25c2b-BT2-3 (3598) 1/2-1/2 · TCEC 24 Superfinal 2023 · 2023-04-14
- LCZero 0.30-dag-bord-lf_784968 (3589) – Stoofvlees II b1 (3511) 1-0 · TCEC 23 Premier 2022 · 2022-09-30
- Stoofvlees II b1 (3511) – LCZero 0.30-dag-bord-lf_784968 (3589) 1/2-1/2 · TCEC 23 Premier 2022 · 2022-09-30
- Stoofvlees II b5 (3492) – KomodoDragon 3.2 (3587) 1/2-1/2 · TCEC 25 Premier 2023 · 2023-09-06
Highest-rated Lichess games
- GM Ivan124 (2697) – Lmkt (2649) 0-1 · 2026-09-02 · 180 + 0s
- Justiniano (2612) – FuriaEn64 (2630) 0-1 · 2026-09-06 · 180 + 0s
- Son1kWave (2487) – Liudede39 (2591) 1-0 · 2026-09-01 · 180 + 0s
Comes from
Indian Defense: Budapest Gambit Accepted, Main Line 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4
More Indian Defense lines (all)
- Indian Defense: Pseudo-Benko A43
- Indian Defense (1. d4 Nf6) A45
- Indian Defense: Accelerated London System A45
- Indian Defense: Gedult Attack A45
- Indian Defense: Gibbins-Weidenhagen Gambit A45
- Indian Defense: Gibbins-Weidenhagen Gambit Accepted A45
- Indian Defense: Gibbins-Weidenhagen Gambit, Maltese Falcon A45
- Indian Defense: Gibbins-Weidenhagen Gambit, Oshima Defense A45
- Indian Defense: Gibbins-Weidenhagen Gambit, Stummer Gambit A45
- Indian Defense: Lazard Gambit A45
- Indian Defense: Maddigan Gambit A45
- Indian Defense: Omega Gambit A45
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.