[Event "Sinaya, 1965"] [White "Bertus Enklaar"] [Black "Michael Basman"] [FEN "6k1/6p1/3r1n1p/p4p1n/P1N4P/2N5/Q2RK3/7q b - - 0 1"] %Hidden=1 1... Ng3+ 2. Ke3 Ng4+ 3. Kf4 Nh5+ 4. Kxf5 Qf3#