Puzzle Trainer

Free, open-source online chess platform with zero ads, zero paywalls, and a full suite of play and training tools.

The world's largest chess platform, offering play, tactics, courses, game analysis, and live event coverage for all levels.

Comprehensive chess training site renowned for its tactics trainer, opening trainer, and large game database.

Safe, kid-friendly chess platform from Chess.com with games, puzzles, videos, and lessons designed for children.

Free daily chess puzzles with a large archive, filterable by theme and difficulty, with user ratings and comments.

Speed tactics trainer that challenges you to solve as many puzzles as possible within a time limit.

Free chess training site combining spaced repetition for openings, blindfold tactics, and endgame practice.

Pattern recognition trainer using real rapid and blitz game positions to build fast, intuitive tactical vision.

Free, open-source chess training app with a clean interface for tactics, opening drills, and game review.

Free, feature-rich offline chess training software with engines, tactics, openings, and a unique competition system.