Scandinavian Defense: Portuguese Gambit, Jadoul Variation
1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. c4
The Scandinavian Defense: Portuguese Gambit, Jadoul Variation is a chess opening classified as ECO B01, reached after 1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. c4. It is a line of the Scandinavian Defense. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 31 times by this move order. White won 55%, 6% were drawn and Black won 39%. The most popular continuation is 6… a6 (84% of games).
Engine evaluation: +0.49 (Stockfish, depth 34; best line 6… e6 7. dxe6 fxe6 8. Ne2 c6 9. Ba4)
- ECO
- B01
- Moves
- 11 plies
- FEN
r2qkb1r/pppnpppp/5n2/1B1P1b2/2PP4/5P2/PP4PP/RNBQK1NR b KQkq - 0 6- PGN
1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. c4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 1500-1999 | 12 | |
| 2000+ | 19 | |
| All | 31 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 6… a6 | 26 (84%) | |
| 6… e6 | 4 (13%) | |
| 6… c6 | 1 (3%) |
Master games
99 over-the-board games are classified under this line (White 45%, draw 20%, Black 35%). The strongest:
- GM Gukesh D (2563) – GM Maxim Matlakov (2685) 0-1 · Titled Tue 25th Aug · 2020-08-25
- GM Grigoriy Oparin (2626) – IM Alexander Moskalenko (2490) 1-0 · 70th Moscow Blitz · 2016-09-04
- GM Ivan Popov (2596) – IM Alexander Moskalenko (2490) 1/2-1/2 · 70th Moscow Blitz · 2016-09-04
- GM Sergei Tiviakov (2656) – IM Paulo Dias (2427) 1-0 · TCh-POR Div1 Final 2013 · 2013-08-24
- GM Sergei Tiviakov (2664) – IM Rui Damaso (2401) 1-0 · TCh-POR Div 1 2014 · 2014-08-20
Highest-rated Lichess games
- eugmind (2541) – CM ArnieChipmunk (2393) 0-1 · 2026-09-05 · 180 + 0s
- jesuismia (2483) – ArmanPetrosyan (2438) 1-0 · 2026-09-03 · 180 + 2s
- SergeiRK (2473) – CM ArnieChipmunk (2422) 0-1 · 2026-09-05 · 180 + 0s
Comes from
Scandinavian Defense: Portuguese Gambit 1. e4 d5 2. exd5 Nf6 3. d4 Bg4
More Scandinavian Defense lines (all)
- Scandinavian Defense (1. e4 d5) B01
- Scandinavian Defense (1… d5 2. b3) B01
- Scandinavian Defense: Anderssen Counterattack B01
- Scandinavian Defense: Anderssen Counterattack, Collijn Variation B01
- Scandinavian Defense: Anderssen Counterattack, Goteborg System B01
- Scandinavian Defense: Anderssen Counterattack, Orthodox Attack B01
- Scandinavian Defense: Blackburne Gambit B01
- Scandinavian Defense: Blackburne-Kloosterboer Gambit B01
- Scandinavian Defense: Boehnke Gambit B01
- Scandinavian Defense: Bronstein Variation B01
- Scandinavian Defense: Classical Variation B01
- Scandinavian Defense: Grünfeld Variation B01
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.