[Event "Prague, 1954"] [White "Heikki Koskinen"] [Black "Fridrik Olafssson"] [FEN "5r1k/7p/p2b4/1pNp1p1q/3Pr3/2P2bP1/PP1B3Q/R3R1K1 b - - 0 1"] %Hidden=1 1... Qxh2+ 2. Kxh2 Rh4+ 3. Kg1 Bxg3 4. Bf4 Rh1#