A Clockwork Brain

What it does

Play 21 free brain games online: Mahjong Solitaire, FreeCell, Hearts, Spades, Tetris, Battlesweeper and more. No download, no account — every game comes with rules and tips.

21 Mahjong, card and board games that open straight in the browser — nothing to download, no account. Rules and tips sit under every one, so you can start something you have never played. Trick-taking and solitaire classics, dealt fresh every round. Two classics crossed into one: familiar rules, a game you have not played. A Clockwork Brain is a collection of 21 tile, card and board games, split into three groups: Mahjong, card games, and classic arcade and board titles. Each game has its own page with the game itself on top and the rules, objective and a few tactical tips underneath. All of them are Mahjong Solitaire: you remove free tiles in identical pairs until the layout is clear.…from aclockworkbrain.com

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