"I missed a pin and lost the win!"

Here I got into a Closed Sicilian and managed to squeeze my opponent. I got an early e5 in and deprived my opponent's Knight of d5, which should have proved decisive.

Unfortunately I missed a crucial pin during the same coloured Bishop ending, which allowed my opponent to hold onto to the draw ... ANNOYING

As usual, any comments welcome ...

Closed Sicilian ...

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 Be7 5. d4 cxd4 6. Nxd4 Nxd4 7. Qxd4 Bf6 8. e5 Be7 9. Nb5 a6 10. Nd6+ Bxd6 11. Qxd6 Qe7 12. Qc7 Qxb4+ 13. c3 Qe4+ 14. Kf2 Ne7 15. Qc4 Qc6 16. Be3 O-O 17. Qxc6 bxc6 18. c4 Rb8 19. b3 Nf5 20. Bc5 Re8 21. g4 Ne7 22. h4 f5 23. g5 Ng6 24. h5 Nf8 25. Be2 Rb7 26. g6 h6 27. Rad1 a5 28. Bf3 Rb8 29. Rd2 Bb7 30. Bxf8 Kxf8 31. Rxd7 Re7 32. Rhd1 Ba8 33. R7d6 Rc8 34. Rd8+ Re8 35. Rxe8 Kxe8 36. Rd6 Ke7 37. Ke3 Rc7 38. Kd3 Bb7 39. Kc3 Ba8 40. a3 Bb7 41. c5 Ba8 42. Rd4 Rd7 43. Rxd7 Kxd7 44. b4 axb4 45. Kxb4 Kc7 46. Ka5 Bb7 47. Be2 Bc8 48. a4 Bd7 49. Ka6 Bc8 50. Ka7 Bd7 51. Ba6 Be8 52. a5 Bd7 53. Bc4 Bc8 54. a6 Bd7 55. Ka8 Bc8 56. Ka7 0.5-0.5

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