Chess Openings — Never be caught off guard by move 8: discover your openings, learn them and play them out move by move, in attack and in defense.
★ 113 opening lines classified by ECO codes, with first-move and attack/defense filters
★ Interactive replay — move by move, auto-play
★ Continue an opening vs the robot
★ Play vs Robot — 8 difficulty levels (800-2400 ELO)
★ Robot (non-Stockfish) fully customizable
★ Opening quizzes — test your knowledge
★ Practice mode — move-by-move learning with feedback
★ Stockfish game analysis — accuracy, blunder detection, best move
★ Live evaluation bar
★ 27 languages
No ads. Anonymous usage analytics only. Works offline.
Perfect for beginners and amateurs looking to build a solid repertoire.
💎 Free vs Premium
Free: 5 openings/day, play vs the robot, 1 quiz & 1 analysis per day.
Premium: unlimited openings, quizzes & Stockfish analysis, full progress tracking.
Try it free, upgrade anytime.