Rubinstein's Immortal!
In this game, Georg Rotlewi faced off against Akiba Rubinstein in Lodz, 1907. They played the Tarrasch Defence: Symmetrical Variation where Black appeared to be of no threat to White. Suddenly, the game took off when Black decided it was time to sacrifice his Rook and his Queen for a beautiful finish! After 20... Ng4! there is no defence for White because of (21. Be4 Qh4 22. g3 Rxc3! 23. gxh4 Rd2! 24. Qxd2 Bxe4+ and 25. Qg2 Rh3 ended the game).