[Event "Amsterdam, 1973"] [White "Jan Timman"] [Black "Jan Donner"] [FEN "3rkb2/pp3R1R/8/2p1P3/3pKB2/6P1/PrP2P2/8 w - - 1 0"] %Hidden=1 1. Bh6 Bxh6 2. e6 Bf8 3. Rh8 Rxc2 4. Rhxf8#