[Event "Moscow"] [Site "Moscow"] [Round "0"] [White "Smyslov"] [Black "Kotov"] [Result "1-0"] [FEN "3r1r2/pp1q2bk/2n1nppp/2p5/3pP1P1/P2P1NNQ/1PPB3P/1R3R1K w - - 0 24"] {A long term Knight sacrifice on f5} 24. Nf5 {This Knight sacrifice is used to open up an attack along the g-file; but it is far a more intricate example, with no immediate objective in view} 24... gxf5 25. gxf5 Nc7 (25... Ng5 26. Bxg5 fxg5 27. Nxg5+ Kg8 28. Ne6 $16) 26. Rg1 Ne8 (26... -- 27. Rxg7+ Qxg7 ( 27... Kxg7 28. Rg1+ Kf7 29. Qh5+ Ke7 30. Rg7+) 28. Rg1 {removing the guard}) ( 26... Rh8 27. Bxh6 $1 Kg8 (27... Bxh6 28. Rg6 Qg7 29. Rxg7+ Kxg7 30. Qg3+ Kf7 31. Qxc7+ $18) 28. Rxg7+ Qxg7 29. Rg1 {pinning tactics}) 27. Rg6 Rf7 28. Rbg1 Kg8 29. Rxh6 Kf8 {Hoping to run the King out of the danger zone} 30. Rh7 Ke7 31. Qh5 $1 Kd6 (31... Rc8 32. Ng5 fxg5 33. Bxg5+ {cutting off the escape square } 33... Nf6 (33... Kd6 34. Bf4+ Ke7 35. f6+ $1 {removing the guard of g7} 35... Nxf6 36. Rgxg7 Nxh5 37. Rxf7+ Ke6 38. Rxd7 Nxf4 39. Rxb7 $18) 34. Rxg7 Rxg7 35. Bxf6+ Kxf6 36. Qh6+ Ke5 37. Rxg7 Qe8 38. Rg6 $18) 32. Bf4+ Ne5 (32... Ke7 33. Ng5 fxg5 34. Bxg5+ {same variations}) 33. Bxe5+ fxe5 34. f6 $3 { discovered attack} 34... Nxf6 35. Qxe5+ Kc6 36. Rhxg7 Kb5 (36... Rxg7 37. Qxf6+ {fork}) 37. Nxd4+ Kb6 38. b4 Rc8 (38... cxd4 39. Qa5+ Kc6 40. Qc5#) 39. Rxf7 Qxf7 40. Qd6+ Rc6 41. Nxc6 Nxe4 42. bxc5+ 1-0