Sicilian Najdorf

The sharpest scoring weapon in chess: ...c5, ...d6, ...a6 and a fight in every line. English Attack, Bg5, Be2, Bc4, the big White tries, met head-on.

• Learn–Easy Memory: drill the points where your lines split.
• Practice–Play whole lines against an opponent that follows your book.
• DrillAll courses–Spaced review of every course's due moves.
• Time–Your prompts against a 60-second clock.
• PuzzlesAll coursesReal games from your positions: find the missed move.
• Arena–Rated games from this opening. Leaving prep costs rating.