It’s Your Move: daily chess puzzle #221

Black to play and win, after White plays 1 Rf1??

O’Kelly v Yanofsky, Lugano Olympiad, 1968

Solution

A rest day today: 1… Nh3+ and if the King moves, 2 …Rf1 is mate; and if the N is captured, 2…Bh3+  also mates next move.