Solve puzzles by deciphering clues and cracking codes. Complete time-sensitive missions or opt for a relaxed mode. Track progress and unlock new challenges. Share achievements with friends.
Solve puzzles with 4 difficulty levels and daily challenges. Use notes, hints, and undos. Customize with colors. Export puzzles as PDF via email. Features symmetric designs and advanced generation algorithm. Compatible with VoiceOver.
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.