[Event "Berlin, 1852"] [White "Adolf Anderssen"] [Black "Jean Dufresne"] [FEN "1r2k1r1/pbppnp1p/1b3P2/8/Q7/B1PB1q2/P4PPP/3R2K1 w - - 1 0"] %Hidden=1 1. Qxd7+ Kxd7 2. Bf5+ Ke8 3. Bd7+ Kf8 4. Bxe7#