Who it is for
Someone who wants a plain game of chess with no configuration beforehand.
Overview
What Chessy does
Chessy sets up a straightforward game of chess between a person and ChatGPT. The human side takes white and opens, and the model answers as black, reasoning through each reply as the game goes on. The example prompt given is simply an invitation to play.
The listing from Altmatter LLC is brief and describes only this. There is no mention of difficulty levels, a clock, saved games, position setup, or analysis after the fact, so what the record supports is a single running game begun with a request. Colour assignment is fixed rather than chosen.
What stands out
Sides are fixed, with the human always playing white and moving first.
Availability
Where Chessy is listed
Chessy is listed in the ChatGPT apps directory only. Altmatter LLC has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
In the ChatGPT apps directory
- Developer
- Altmatter LLC
- Filed under
- Entertainment
- Listed since
- June 2026
- Authentication
- Authenticates when installed
- Website
- chess.altmatter.com
- Policies published
- Privacy policy · Terms of service
- Official listing
- Open in ChatGPT
- Snapshot
- August 2026
Example prompts from the listing
- Let's play chess!
Nearby
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789 Sudoku
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ABC Crossword
Generated crossword puzzles with optional themes
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This is an independent catalogue entry compiled by Node8 from Chessy's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Altmatter LLC, and inclusion here is not an endorsement.
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