Author: Ferdinand S. Mosca
Date: 08:34:31 06/09/01
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On June 09, 2001 at 09:00:28, Rafael Andrist wrote: >In a game (20 sec/move) between "Der Bringer" and my program occured this >endgame position. My program - playing as Black - sees only a small advantage >for White, but it looses. Is it possible to draw the endgame or was the game >already lost before? > >[D]6k1/pB2pp1p/6p1/8/4P3/5K2/r5PP/3R4 b - - 1 30 > >the game continued: >30. ... Kg7 31. e5 Ra5 32. Ke4 e6 33. Rd7 Ra4+ 34. Ke3 Ra3+ 35. Kf4 h6 36. Bc6 >g5+ 37. Ke4 Rc3 38. Ba8 a5 39. Ra7 Ra3 40. Bc6 Ra2 41. Be8 Re2+ 42. Kd4 Rd2+ 43. >Ke3 Rxg2 44. Bxf7 Rxh2 45. Bxe6+ Kg6 46. Rxa5 Rh1 47. Ke2 Kh5 48. Bf5 Rh2+ 49. >Ke3 Rh1 50. e6 Kh4 51. e7 Re1+ 52. Kf3 Rxe7 53. Ra4+ Kh5 54. Ra1 g4+ 55. Kf4 Re3 >56. Rh1+ Rh3 57. Bxg4+ Kg6 58. Rxh3 Kg7 59. Bf5 Kf6 60. Rxh6+ Kg7 61. Kg5 Kf7 >62. Re6 Kf8 63. Kg6 Kg8 64. Re8# 1-0 > >Maybe it is easier for humans than for computers to judge this position >correctly, but I am a too weak player to do that. > >Rafael B. Andrist Just an estimate of the position, black has the chance to draw, this position is still not very easy for white. Some Points: 1. Black has a threatening outside passed pawn, that cannot be taken away by force, at least it needs a rook and a king to get this. 2. Black's only problem is the f7 pawn/square, white can attack this by placing his rook on the 7th rank ideally at a-file behind black's passed pawn, and put his bishop at e8. Currently the e7-pawn can be forced to move to e6. 3. Black should try to put his rook on the 7th, if not at least at the back, so that the bishop cannot reach the e8, while holding the passed pawn. 4. Other than that, remember the rook pawn and the wrong bishop color!? It has the potential to reach the position, exchange the rook at certain point and be sure white has the bishop and a rook pawn. Regards, Dinan
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