[Event "Dubrovnik"] [Site "Dubrovnik"] [Round "2"] [White "Najdorf"] [Black "Beni"] [Result "1/2-1/2"] [FEN "4rrk1/p2q3p/1pp1n1p1/3pPp2/3P1P2/P1PQB3/4R1PP/5RK1 b - - 0 24"] {A protected but blockaded passed pawn can doom its owner to inactivity The situation here is much the same as the previous one, but Black adopts rather different tactics. His logical strategy would be ... Pc5, either at once or after preparation, followed by ... cxd4, and then pressure down the c-file} 24... b5 {The Idea is to prevent White's Pc4, and so fix his pawns on the same colour as his Bishop, which thus becomes "bad"} 25. a4 a6 26. Bc1 Ra8 27. Ba3 { These two moves of White have brought his bad Bishop outside the pawn chain} 27... Rf7 28. g3 Qe8 29. Rg2 {White fences with the possibilty of Pg4, to discourage Black from playing his King Rook to the Queenside} 29... Kh8 30. Bd6 Raa7 31. Ra2 Rfd7 32. Rfa1 Qf7 33. Qe2 Rdb7 34. Ra3 $1 {White tries something different. He is now preparing to triple his major pieces on the a-file} (34. axb5 axb5 35. Rxa7) 34... b4 $1 (34... -- 35. R1a2 -- 36. Qd1 -- 37. Qa1) 35. cxb4 Nxd4 36. Qb2 Ne6 37. Qc3 Qd7 38. Rc1 a5 $1 39. bxa5 (39. Qxc6 Qxc6 40. Rxc6 axb4 41. Bxb4 Rxb4 42. Rxe6 Rc7 43. a5 Rb2 44. Ra1 Rcc2 {probably drawn}) 39... c5 40. Qf3 d4 41. Rb3 $1 Rxb3 42. Qxb3 { By seizing the open file, White has just about restored the balance} 42... Rxa5 43. Rb1 Kg7 44. Qd5 Kh6 $1 45. Kg2 (45. Rb7 Qxa4) 45... Qf7 46. Kf2 Qd7 47. Rb2 Rxa4 48. Rb7 Ra2+ 49. Qxa2 Qxb7 50. Qxe6 Qb2+ 51. Kg1 Qc1+ 52. Kg2 Qd2+ { Perpetual check} 53. Kh3 Qe2 1/2-1/2