Play chess against another player or the computer with adjustable ELO ratings. Save, share, delete, and rename games in the Chess Gallery. Import and export PGN files. Analyze game statistics. Access interactive chess openings and skill guides.
by 恒宇 周★ 4.034 ratingsSportsFreeData updated 2026-09-10
Manage tournaments from registration to match pairing and scoring using Swiss system and other algorithms. Track player progress, update scores in real time, and view standings. Support multiple scorekeepers for simultaneous score entry.
Learn with expert lessons and personalized content
Learn through lessons from world champions like Vladimir Kramnik and Yifan Hou. Access personalized content for all skill levels. Track progress with interactive challenges and feedback. Share achievements with parents or friends.
Play Tic Tac Toe with customizable grid sizes and language options. Challenge opponents locally or online. Play Gomoku with adjustable board dimensions and win by connecting five pieces in a row. Supports single-player and multiplayer modes.
Manage your account, register for classes and workshops, and purchase class passes or event tickets. Receive notifications about class changes, closings, registration openings, and special announcements. View upcoming events and parties.
Basic vocabulary through a memory matching game. Tap on pairs of images and to match them. Access additional language learning games on the developer's website.
Track scores for multiple players in card, board, and sports games. Add or remove players as needed. Edit scores from past rounds and view rankings. See score trends with graphs. Supports team scoring for Nertz players.