[Event "Bled"] [Site "?"] [Round "0"] [White "Tartakower"] [Black "Bogolyubov"] [Result "0-1"] [ECO "D10"] [Opening "Slav: Exchange, 4.Nc3 Nf6"] {The minor piece side posses two Bishops} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 e6 7. e3 Be7 8. Bd3 O-O 9. a3 Nh5 10. Be5 f6 11. Ng5 g6 12. Nxh7 fxe5 (12... Kxh7 13. Qxh5+ Kg8 14. Qxg6+ Kh8 15. Qh7#) 13. Nxf8 Bxf8 14. Bxg6 Nf6 {White has a Rook and two pawns against two minor pieces; moreover, Black's Kingside is completely demolished. One would think that White must hace more than sufficient compensation. There is nevertheless one factor in the position which will make White's game very difficult - namely, Black's two Bishops} 15. g4 Nh7 16. h4 Bg7 17. Bxh7+ { White is compelled by the pressure on d4 to take this drastic measure} (17. dxe5 Nxe5 18. Bc2 Nc4 19. Qd3 Nf8 20. O-O-O Bd7 {strong attack}) 17... Kxh7 18. Qc2+ Kh8 19. dxe5 Nxe5 20. O-O-O Bd7 21. h5 Rc8 22. h6 Bf8 23. g5 {Black is not interested in winning the g-pawn, thereby giving the White Rooks an opportunity of showing their paces on the g-file. Rather he concentrates all his strength against White's King position, the two Bishops giving invaluable service} 23... Be8 24. f4 Bg6 25. e4 Nc4 (25... Bxe4 26. Qxe4 dxe4 27. Rxd8 Rxd8 28. fxe5) 26. Qd3 Qb6 {Forcing White to simplify} (26... Bxe4 27. Qd4+ e5 28. Qxe4 dxe4 29. Rxd8 Rxd8 30. f5 $13) 27. Qd4+ Qxd4 28. Rxd4 Bc5 29. f5 $1 { White's best counterchance} (29. Rdd1 Be3+ $19) 29... exf5 { Black prefers to keep his Bishop pair} (29... Bxd4 30. fxg6 Be3+ $2 (30... Nxa3 31. bxa3 Bxc3) 31. Kb1 Nxa3+ 32. bxa3 Rxc3 33. g7+ Kh7 34. g6+ $18) 30. Rxd5 fxe4 31. Kb1 {The Knight must be unpinned} (31. Kd1 $4 Ne3+) 31... e3+ 32. Ka1 Nb6 33. Re5 Bd4 34. Re6 Bf5 (34... Rxc3 35. Rxg6 $1 (35. bxc3 Bxc3+ 36. Ka2 Bf7 ) (35. Rxb6 axb6 36. bxc3 Bxc3+ 37. Ka2 e2)) 35. Re7 Nc4 36. Rh4 Nxa3 $1 { Notice how Black is always careful to keep his two bishop, making no use of the chance of winning White'sc-pawn} 37. bxa3 Bxc3+ 38. Ka2 Bd2 39. Rf4 Bh7 40. Rd4 (40. Rff7 Bg8) 40... Bg8+ 41. Kb1 Bh7+ 42. Ka2 Rg8 43. Rdd7 Bf5 44. Rxb7 a5 45. a4 (45. Rb3 Bc2) 45... Bd3 46. Rbd7 e2 47. Rxd3 e1=Q 48. Rxe1 Bxe1 49. Rd5 Kh7 50. Kb3 Kg6 51. Kc4 Rb8 52. Rb5 Re8 53. Rd5 Re4+ 54. Rd4 Rxd4+ 55. Kxd4 Bd2 56. Kc4 Bxg5 0-1