Upside-Down

The armies start on each other's side of the board — every pawn is one step from promotion. Blink and it's a queen festival.

How it plays

The armies start on each other's side — every pawn one step from promotion. A queen festival by move five.

Who it's for

Chaos lovers and promotion practice.

Play it right now against four levels of computer opposition — or challenge another player live with chess clocks, Elo ratings, and full game analysis afterward. Every game is free, in your browser, no download needed.

More ways to flex your strategy

Upside-Down is one of 20 chess variants on Grandmaster Gains — alongside 108 interactive lessons, Puzzle Rush, and achievements. Every move builds power.