CrownDuet
Simultaneous chess
Two plans.
One moment.
The board is familiar. The next move is a secret.
Try a roundA small part of the board
White’s plan · Rb1-b3
How to play
Follow one move, from plan to resolution.
Account required for multiplayerExplore the mechanics
Before your first match
A few things to know
Familiar pieces. A different way to plan.
Do pieces still move like chess?
Yes, familiar piece movement is the starting point. The difference is that both players plan before either side sees the other’s choices. Contact, Watches and resolution follow CrownDuet’s rules.
Does CrownDuet help prevent cheating?
Yes. Hidden plans protect fair play by keeping each player’s decisions secret until the reveal. Cheating has no place in CrownDuet.
Is CrownDuet free to play?
Yes. We’re committed to keeping CrownDuet free to play and ad-free. If you enjoy the game, you can support its development.
Can I play with a friend?
Yes. Sign in, choose Play with a friend in the lobby, and use the same match phrase. Both players need an account.