Chess
Play Jesse. Her moves come from her own chess engine: book moves in the opening, then a search of about 300,000 positions a move on one CPU core, with no neural network and no language model. Signed in, you play your own Jesse. She keeps your games and both Elo ratings, and she learns from your games only.
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| # | Ended (UTC) | You | Result | How | Moves | Your Elo | Her Elo |
|---|
Standard chess: castling, en passant and promotion to any piece. A game ends at checkmate, by resignation, or in a draw. Draws are declared on the spot for stalemate, the third occurrence of a position, fifty moves by each side without a capture or pawn move, and material that cannot mate; Jesse also accepts a draw offer when she is worse by half a pawn or more, or when the position is level after move 30.
Ratings: you and your Jesse each start at 1500, and after every game both move by the Elo formula with K = 32. Her memory of you holds what she played in each position against you and how those games ended; a move that lost to you counts against itself the next time, by at most one pawn, and a move that beat you counts for itself. It is read only in your games.