Sicilian Defense: Najdorf Variation, Dekker Gambit
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g4
The Sicilian Defense: Najdorf Variation, Dekker Gambit is a chess opening classified as ECO B90, reached after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g4. It is a line of the Sicilian Defense. Black is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 12 times by this move order. White won 50%, 0% were drawn and Black won 50%. The most popular continuation is 6… Bxg4 (50% of games).
Engine evaluation: −0.78 (Stockfish, depth 30; best line 6… Bxg4 7. Be2 Bxe2 8. Qxe2 Nbd7 9. Bg5)
- ECO
- B90
- Moves
- 11 plies
- FEN
rnbqkb1r/1p2pppp/p2p1n2/8/3NP1P1/2N5/PPP2P1P/R1BQKB1R b KQkq - 0 6- PGN
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g4
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 1500-1999 | 7 | |
| 2000+ | 5 | |
| All | 12 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 6… Bxg4 | 6 (50%) | |
| 6… e5 | 3 (25%) | |
| 6… Nc6 | 2 (17%) | |
| 6… h6 | 1 (8%) |
Master games
9 over-the-board games are classified under this line (White 33%, draw 11%, Black 56%). The strongest:
- GM David Paravyan (2653) – IM Sergey D. Rodchenkov (2346) 1-0 · Titled Tuesday 20th Oct · 2020-10-20
- CM Mrithyunjay Mahadevan (2206) – IM Raahil Mullick (2323) 0-1 · Vergani Cup Dec 2021 · 2021-12-29
- Majur Juac (2082) – FM Kyron Griffith (2319) 0-1 · 10th New York Int 2017 · 2017-06-22
- FM Mikhail Chernov (2167) – CM George Danzer (2172) 1-0 · Titled Tue 13th May Early · 2025-05-13
- FM Mikhail Chernov (2167) – Elijah Logozar (1945) 1-0 · Titled Tue 13th May Early · 2025-05-13
Search all games of the Sicilian Defense: Najdorf Variation, Dekker Gambit and its sub-variations
Highest-rated Lichess games
- cyapusspuss (2600) – Neburulya (2552) 1-0 · 2026-09-01 · 180 + 0s
- batyrbekzeripov (2236) – SteveRogert (2303) 1-0 · 2026-09-02 · 180 + 2s
- SirEric (2058) – pakhan873 (2047) 1-0 · 2026-09-07 · 180 + 0s
Comes from
Sicilian Defense: Najdorf Variation (5. Nc3 a6) 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6
More Sicilian Defense lines (all)
- Sicilian Defense (1. e4 c5) B20
- Sicilian Defense: Amazon Attack B20
- Sicilian Defense: Big Clamp Formation B20
- Sicilian Defense: Bowdler Attack B20
- Sicilian Defense: Brick Variation B20
- Sicilian Defense: Czerniak Attack B20
- Sicilian Defense: Czerniak Attack, Queen Fianchetto Variation B20
- Sicilian Defense: Euwe Attack, Prins Gambit B20
- Sicilian Defense: Gloria Variation B20
- Sicilian Defense: Grob Variation B20
- Sicilian Defense: Keres Variation B20
- Sicilian Defense: King David's Opening B20
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.