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Spark & Whetstonethe grown-up commons

← Chess

Play with a friend

Share a private code with someone you know — a grandchild across the country, a friend across town — and play a calm game together. No chat, no accounts, nothing sent anywhere but the moves.

Host a game

Start a room and share the code.

Join a game

Enter the code your friend gave you.

Rooms are private and code-gated — only someone with the code can join. There is no public matchmaking, no chat, no accounts, and no personal information: players get a friendly temporary name for the game and nothing is kept. The game runs over the same safe transport our whole family of sites uses.