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
Read and interact books featuring playable diagrams. Explore opening theory through monthly periodicals. Purchase eBooks via in- store. Play through book lines or create your own moves. Sync board for real-time analysis.
Play by filling a 9x9 grid with digits 1-9 in each row, column, and 3x3 box. Choose from 5 difficulty levels. Levels are generated using AI and machine learning. Track progress and revisit previous games.
Through structured lessons for beginners and intermediate players. Study rules and strategies to understand the game thoroughly. Use augmented reality mode to visualize moves and improve gameplay.
Simulate with realistic physics and strategy-based gameplay. Play solo against computer opponents or compete with friends via Game Center. Choose from quick, full, or mixed doubles game modes.
Play , a trick-taking card game with strong computer opponents. Use German or French decks. Customize rules with Kontra, Re, Bock, and Ramsch. Replay previous games and access in-game help.
Play against another human or AI opponents. Place pieces on a board divided into 32 squares. Win by getting four pieces in a row around the circle, in a line from the center, or in a spiral. Track turns and piece placements during gameplay.
Learn strategies through structured lessons and exercises. Study over 290 theoretical examples and 750 practical problems. Track progress with themed lessons and interactive practice sessions.
Play against friends or the computer in single or multiplayer modes. Challenge others in puzzles or competitions. Invite Facebook friends or search by username to connect. Track game progress and compete in different play styles.