A quiet, well-written reference for the classical chess opening repertoire — Ruy Lopez, Sicilian, Queen's Gambit, King's Indian, and 21 more.
Each opening: ECO code, main line, key strategic ideas, important variations, common traps, suitability. Ask the AI coach concrete 'what should I do if my opponent plays X' questions.
Browse all 25 openings. 3 AI coach asks per day. Unlimited study log.
Unlimited AI coach.