Sacrifice is at 14. Qd8+, then soon a Double Check and mate! L Maczuski vs Kolisch, 1863  (C45) Scotch Game, 15 moves, 1-0 Game ends with QSac, then comes Rxf8 21.Bxh7+ Kh8 22.Rxf8# Spielmann vs Menchik, 1938  (C11) French, 20 moves, 1-0 30...Qxb2+ sets up a Royal Fork; Rook sacriflce earlier also. K Honfi vs L Barczay, 1977  (B93) Sicilian, Najdorf, 6.f4, 35 moves, 0-1 Game ends with QSac for serious advantage or mate soon. Ehlvest vs Korchnoi, 1989  (C11) French, 43 moves, 1-0 Queen loss after 25. ... Qxh2+ wins by Doublee Rooks soon H Prokopp vs H Scholz, 1996  (B33) Sicilian, 26 moves, 0-1 After the Queen Sacrifice, then 44. ... Rxh7 45. Rxh7#. Kramnik vs J Polgar, 1996  (E97) King's Indian, 44 moves, 1-0 Queen Sacrifice at end, then Nxg7 29.Nh6#. A Adly vs V Laznicka, 2007  (A07) King's Indian Attack, 28 moves, 1-0 Queen Sacrifice at 13W, then mate comes quickly. H Raja vs R Faizrakhmanov, 2016  (B11) Caro-Kann, Two Knights, 3...Bg4, 14 moves, 1-0 20. ... Qxf3+ leads to King Hunt and mate! A beauty! V Buckels vs R Vogel, 2017  (E46) Nimzo-Indian, 32 moves, 0-1 9 games