Explore mode is a free-form analysis board — move either side yourself, starting from the normal opening position, and Stockfish 18 evaluates the position and suggests the best move after every move you make. No game import needed; it’s the same live engine hookup as the Analyze page, just driven by you instead of a finished game.
Analyze reviews a finished game you’ve imported. Explore mode has no game at all — you play both sides yourself from the starting position and get instant feedback on every move, useful for testing ideas or studying a specific opening line.
Not yet — Explore mode currently starts from the standard opening position each time you reset.