blind chess

A two-player chess variant where each player sees only their own pieces. The server is the moderator.

Play with a friend

Get a shareable link, send it to someone, play together.

Mode
You play as
{#if friendError}

Error: {friendError}

{/if}

Play vs computer

Always-available opponent. No link to share — game starts immediately.

Mode
You play as

Casual: fast, plays simple moves, makes mistakes. Good for a quick game.

{#if aiError}

Error: {aiError}

{/if}

Duplicate Chess under development

A four-player chess variant invented by Andrew Freiberg. Perfect information — every player sees all four boards. Local sandbox; open it and play around.

Open →