Dr. Beek - Max Lange, 1861
1.e4 e5 2.Nf3 d6 3.d4 f5 4.dxe5 fxe4 5.Ng5 d5 6.e6 Nh6 7.f3 Bc5 8.fxe4 O-O9.exd5 Rf5 10.Nc3 Re5+ 11.Nce4 Rxd5 12.Bd2 Bxe6 13.Nxe6 Qh4+ 14.Ng3 Re5+ 15.Be2 Rxe616.Bxh6 Na6 17.Bd2 Rd8 18.Qc1, Black announces mate in 7.
Although Fritz8 could not find the announced mate, it gives the winning variation for Black starting with 18...Rxe2+ 19.Kxe2 Qg4+ 20.Ke1 Re8+ 21.Be3 Bxe3 22.Qd1 Bd2+ 23.Kf2 Qd4+ 24.Kf1 Qc4+ 25.Kf2 Be3+ 26.Ke1 Nb4.
