On Stockfish level three when playing the three-check variation, there is what appears to be a glitch/bug. It can be duplicated by:
Play as white. On move 1, play e4. Regardless of what the computer plays, on move 2, Qh5. On move 2 for Stockfish, it moves a white piece instead of a black piece. The lichess app then prevents the game from continuing.
Play as white. On move 1, play e4. Regardless of what the computer plays, on move 2, Qh5. On move 2 for Stockfish, it moves a white piece instead of a black piece. The lichess app then prevents the game from continuing.