[Event "Amsterdam, 1923"] [White "Bjorn Frank"] [Black "J Willens"] [FEN "r1r3k1/pp1q1p1p/4nBpQ/3pP3/1b5P/3B4/P1P3P1/R2K3R w - - 1 0"] %Hidden=1 1. h5 Bc3 2. Qxh7+ Kxh7 3. hxg6+ Kg8 4. Rh8#