[Event "London, 1875"] [White "Johannes Zukertort"] [Black "William Potter"] [FEN "3r4/pR2N3/2pkb3/5p2/8/2B5/qP3PPP/4R1K1 w - - 1 0"] %Hidden=1 1. Be5+ Kc5 2. Rc1+ Bc4 3. b4#