Lessons for any opening: choose a named line as White or Black and learn it move by move, with the other common replies and what the moves threaten. Opening lessons now end with a Recap, and there are new plans for the Benko Gambit, Caro-Kann, Italian Game, and against the Scandinavian and London. Today opens with From your games, mistakes from your recent games to practice. On phones, Analyze gives the board the whole screen. This update also includes performance improvements and fixes.

Review games on your own device: Review now asks where to run it, and on your device there is no daily limit and no connection needed. In Practice, play on against the engine past your lines, step back and play a different move to take one back, and pick from your saved moves when you show the move. In Openings, delete a line from your prep, and adding another move keeps both. Analyze has a New board option. This update also includes performance improvements and fixes.

New in Insights: cards for your opponents, rating gaps, activity and playing sessions, filters for site, color and rated games, and longer time windows. With a subscription, Insights can also count your older games beyond your library. New games now come in automatically when you open the app, and signing up ends with a side-by-side look at the Free and Plus plans. This update also includes performance improvements and fixes.

New in Insights: an At a glance summary, accuracy by game phase, and a speed filter that can combine time controls. Each opening variation you play now has its own page, and Opening review links to the ideas behind each line. The How mastery works page now shows the math, with worked examples you can try. This update also includes performance improvements and fixes.

New: share your Insights statistics on a page anyone with the link can open without the app. New opening lessons: the Scotch Gambit and the Trompowsky Attack for White. Your costliest opening mistakes now have their own page: find a better move, then explore the line and add it to your prep. The opening explorer can now use a range of ratings. This update also includes performance improvements and fixes.

New: tactics lessons on checkmate patterns, attacking the king and tactical motifs. They join the opening and endgame lessons. Follow explanations on the board, test yourself with quizzes, and practice the positions. Lessons are free and work without signing in. Guest lesson progress is saved on your device.

Opening and endgame lessons are here. Follow explanations on the board, test yourself with quizzes, and practice the positions. Lessons are free and work without signing in. Guest lesson progress is saved on your device.

Connect for your newest 150 games, automatically analyzed. Free then imports 20 new games at a time when you ask, with a 24-hour wait after each batch. Plus brings in your newest 1,000 right away and imports automatically with no waiting. Changing a connected account replaces its games and puzzles. Also: faster Openings and a memory fix for large libraries.