 White cannot promote its pawn as it is left with a wrong-color bishop and the black king reaches the h8 square in time.Of course, rather than embodying an instance of swindling proper, the decision of Fischerle to play 57...Rxg4 instead of 57...Kxg6 is based on general considerations regarding the dangerousness of connected passed pawns.In fact, for a chess engine to be able to swindle in a narrower sense, it requires an opponent model that enables it to exploit the relative weaknesses of its particular adversary, enabling asymmetric evaluation to performing speculative play.