They said Deep Blue, not Stockfish. Stockfish is vastly stronger. I'm not sure how big the window was, if it existed, but it seems like it might have. Kasparov

They said Deep Blue, not Stockfish. Stockfish is vastly stronger. I'm not sure how big the window was, if it existed, but it seems like it might have. Kasparov and Deep Blue themselves were fairly equally matched, it doesn't seem impossible that Kasparov + AI-aided theories would have a window of advantage over the Deep Blue -> Stockfish evolution.