For sale, asking $16500

Maestro (maestrochess.com) is a finished, live chess-improvement web app. It finds the mistakes a player keeps repeating in their own games and turns them into drills that come back until they stop happening. What it does • Free Blunder Scan: enter a Chess.com or Lichess username and the last 12 games are analysed by Stockfish 18 in the visitor's own browser in about a minute, with no sign-up • Move-by-move Game Review with accuracy, move grades and written commentary • Blunder Bank: the player's own mistakes as puzzles, on a spaced-repetition schedule • Chess DNA: a style profile on six axes and an estimated rating • Engine opponents from about 700 to 3500 Elo, online play, opening and endgame training, and an installable phone app How it makes money Freemium subscriptions through Paddle as merchant of record: Pro at $10/month or $100/year. All engine analysis runs in the user's browser, so extra users cost almost nothing; the whole product runs for about $45 a month. Where it stands Launched July 2026 with no marketing yet: 7 people besides me have signed up, and there are no paying subscribers yet. What's included The domain, full source code with git history and all IP, the live deployment, the Paddle integration (moved to your own account), brand assets, a technical overview, runbooks, 467 automated tests in CI, and 30 days of handover support. Why I'm selling I built the product I set out to build. Growing it is a distribution job, best done by someone with an audience: a chess creator, a coach or a chess-education business.

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