Mahjong Solitaire Online

Play classic 144-tile Mahjong Solitaire in your Chrome popup or side panel. 5 solvable layouts, hints, undo, and daily challenges.

Mahjong Solitaire Online brings the timeless 144-tile Shanghai puzzle straight into your browser. Play instantly from your toolbar popup or dock the game to the Chrome Side Panel to solve relaxing tile boards alongside your everyday reading, research, or work. Key Features: • 100% Guaranteed Solvable Deals: Every deal is generated using an intelligent reverse-stack solver algorithm, ensuring no dead ends or impossible starting boards. • Popup and Side Panel Modes: Launch quick casual games in a lightweight toolbar popup, or dock to Chrome Side Panel to play beside webpages without tab-switching. • 5 Classic Board Formations: Master the traditional Shanghai Turtle, Fortress, Spider, Serpentine Dragon, and Cloud layouts. • Daily UTC Challenge: A fresh daily puzzle shared worldwide every 24 hours with local streak tracking and your personal top 5 fastest clear times. • Helpful Assist Tools: Instant smart hints, unlimited undos, and automatic match counters keep your game flowing smoothly. • Procedural Sound Effects: Realistic wooden and ivory tile clacks synthesized in real-time with zero external audio assets. • Offline & Battery Friendly: Pure lightweight code that runs completely offline with zero background battery drain. How to Play: 1. Click the Mahjong icon in your browser toolbar to open the game popup. 2. Cick pairs of matching free tiles (tiles not covered from above and unblocked on either their left or right edge). 3. Clear all 144 tiles from the board to win! 4. Click the 'Side Panel' button to dock your game alongside any webpage while you browse. Privacy & Respect: Mahjong Solitaire is completely free, contains zero advertisements, and collects zero personal data. All game progress, daily streaks, and high scores remain stored safely on your own computer. Support & Web Version: Need assistance, full-screen play, or rules guides? Visit our official website at https://mahjongonline.co.uk.