 using fixed-payout multibinary rather than parimutuel. Resolves the same.

If you're making an attempt to the 2023 GPT-4 Sudoku Challenge, add your name to the list and buy some shares in yourself.

Resolves to the first person to post a "fixed prompt" in the comments as defined in ( 

 ), and a puzzle that was generated after the comment using that prompt is solved and validated.

Puzzle can be from any reputable provider of Sudoku puzzles, and any difficulty as long as it is not trivial. (If humans are the audience, it is not trivial.)

 will make one last attempt after the main market closes if nobody finds a solution and it would count for this market.