One of my all time favorite tactical maneuvers, Nimzowitsch uses a series of tactical threats to get a dominating position:
[Event "Kecskemet-B"]
[1927.??.??]
[White "Nimzowitsch, Aaron"]
[Black "Vukovic, Vladimir"]
[Result "1-0"]
[Annotator "Yusupov"]
[SetUp "1"]
[FEN "4r2k/7p/2q5/2p1pQ2/8/P7/6PP/2R4K w - - 0 37"]
37. Qh5$1 {Threatening to win a pawn after 38. Rxc5 Qxc5 39. Qxe8+} Re7 38. Rd1 Qg6 39. Qf3 Kg7 40. Qd5{and now Nimzo owns the center} Qh5 41. Rd3 Qf7 42. Rg3+ Kh8 43. Qxc5 Qf1+ 44. Qg1 Rf7 45. h3 e4 46. Kh2 Rf2 47. Qxf1 Rxf1 48. Re3 Ra1 49. g4 Kg7 50. Kg3 Kg6 51. Kf4 h5 52. gxh5+ Kxh5 53. Kxe4 Kh4 54. Kd4 Rc1 55. Rc3 Ra1 56. Kc4 Kg5 57. Rf3 Rb1 58. a4 Ra1 59. Kb4 Rb1+ 60. Rb3 Rf1 61. a5 Kf6 62. a6 Ke6 63. a7 Rf8 64. Kc5 1-0