[Event "Zurich"] [Site "Zurich (05)"] [Round "0"] [White "Euwe"] [Black "Alekhine"] [Result "1-0"] [FEN "2nq2k1/2r2ppp/p1p1r3/PpQ1N3/1P1PR3/8/5PPP/2R3K1 b - - 0 30"] 30... f6 {Hoping to win a piece} (30... Ne7) 31. Nf7 $1 Qe8 (31... Kxf7 32. Qh5+ Ke7 33. Rxe6+ Kxe6 34. Re1+ Kd6 35. Qc5+ Kd7 36. Qf5+ Kd6 37. Qe6#) 32. Rxe6 Qxe6 33. Nd8 Qe4 34. Nxc6 {Instead of winning a piece Black has lost a pawn. The rest of the game - not important to our theme - went as follows} 34... h6 35. d5 Qd3 36. h3 Qd2 37. g3 Kh8 38. Kg2 Qd3 39. Re1 Kh7 40. Re3 Qd2 41. Re8 Qd3 42. Qd4 Qc4 43. Qe4+ Qxe4+ 44. Rxe4 Kg8 45. Nb8 Kf7 46. Nxa6 Rd7 47. Rd4 Ne7 48. d6 Nf5 49. Rd5 Nxd6 50. Nc5 Rd8 51. Ne4 Nb7 52. a6 Ke6 53. Rxd8 1-0