Alekhine Defense: Four Pawns Attack, Trifunovic Variation
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5
The Alekhine Defense: Four Pawns Attack, Trifunovic Variation is a chess opening classified as ECO B03, reached after 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5. It is a line of the Alekhine Defense. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 182 times by this move order. White won 55%, 3% were drawn and Black won 42%. The most popular continuation is 6. Nc3 (41% of games).
Engine evaluation: +0.64 (Stockfish, depth 42; best line 6. Be2 e6 7. Nc3 dxe5 8. fxe5 Be7)
- ECO
- B03
- Moves
- 10 plies
- FEN
rn1qkb1r/ppp1pppp/1n1p4/4Pb2/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - 1 6- PGN
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 0-1499 | 13 | |
| 1500-1999 | 89 | |
| 2000+ | 80 | |
| All | 182 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 6. Nc3 | 74 (41%) | |
| 6. Nf3 | 62 (34%) | |
| 6. Be3 | 22 (12%) | |
| 6. Bd3 | 11 (6%) | |
| 6. g4 | 6 (3%) | |
| 6. Be2 | 3 (2%) | |
| 6. b3 | 1 (1%) | |
| 6. a4 | 1 (1%) |
Master games
180 over-the-board games are classified under this line (White 46%, draw 18%, Black 36%). The strongest:
- LCZero v0.24-sv-t60-3010 (3958) – Stockfish 202003092246 (3936) 1/2-1/2 · TCEC 20 Premier 2020 · 2020-03-31
- Stockfish 202003092246 (3936) – LCZero v0.24-sv-t60-3010 (3958) 1/2-1/2 · TCEC 20 Premier 2020 · 2020-03-27
- Stockfish 202005232210 (3796) – LCZero v0.25.1-sv-t60-3010 (3809) 1/2-1/2 · TCEC 18 Premier 2020 · 2020-05-30
- LCZero v0.25.1-sv-t60-3010 (3809) – Stockfish 202005232210 (3796) 1/2-1/2 · TCEC 18 Premier 2020 · 2020-05-26
- Stockfish2021061923 (3632) – Igel3.0.5 (3512) 1-0 · TCEC 21 Premier 2021 · 2021-07-01
Highest-rated Lichess games
- Tempstream (2720) – FM dclasby (2784) 0-1 · 2026-09-06 · 180 + 0s
- Futurexxx (2645) – Despaired_One (2524) 0-1 · 2026-09-04 · 180 + 0s
- Euphoria1230 (2566) – quinquileria (2541) 1-0 · 2026-09-05 · 180 + 2s
Comes from
Alekhine Defense: Four Pawns Attack 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4
More Alekhine Defense lines (all)
- Alekhine Defense (1. e4 Nf6) B02
- Alekhine Defense: Brooklyn Variation B02
- Alekhine Defense: Brooklyn Variation, Everglades Variation B02
- Alekhine Defense: Buckley Attack B02
- Alekhine Defense: Hunt Variation, Lasker Simul Gambit B02
- Alekhine Defense: Hunt Variation, Matsukevich Gambit B02
- Alekhine Defense: Hunt Variation, Mikenas Gambit B02
- Alekhine Defense: Kmoch Variation B02
- Alekhine Defense: Krejcik Variation B02
- Alekhine Defense: Krejcik Variation, Krejcik Gambit B02
- Alekhine Defense: Maróczy Variation B02
- Alekhine Defense: Mokele Mbembe B02
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.