Author: Howard Exner
Date: 11:26:03 11/05/98
Go up one level in this thread
On November 04, 1998 at 13:57:10, Hans Christian Lykke wrote:
>[Event "SSDF 40-2, DK Bramming"]
>[Site "?"]
>[Date "1998.11.04"]
>[Round "18"]
>[White "Nimzo98 P200MMX 46MB"]
>[Black "Junior 5 P200MMX 47MB"]
>[Result "1/2-1/2"]
>[ECO "B17"]
>[WhiteElo "2535"]
>[BlackElo "2575"]
>[Annotator "Test: HC Lykke"]
>[PlyCount "205"]
>[EventDate "1998.10.16"]
>
>{48000kB, Jun-book.ctg=351287 pos
>} 1. e4 {0} 1... c6 {0} 2. d4 {1} 2... d5 {0
>} 3. Nd2 {1} 3... dxe4 {0} 4. Nxe4 {1} 4... Nd7 {0} 5. Ng5 {1} 5... Ngf6 {0} 6.
>Bd3 {1} 6... e6 {0} 7. N1f3 {1} 7... Bd6 {0} 8. Qe2 {1} 8... h6 {0} 9. Ne4 {1}
>9... Nxe4 {0} 10. Qxe4 {1} 10... Nf6 {0} 11. Qe2 {1} 11... Qc7 {0} 12. Bd2 {1}
>12... b6 {0} 13. O-O-O {1} 13... Bb7 {0} 14. Kb1 {1} 14... O-O-O {0} 15. Ba6 {
>536} 15... b5 {0} 16. Bxb7+ {94} 16... Kxb7 {0} 17. c4 {303} 17... bxc4 {0} 18.
>Rc1 {231} 18... Rb8 {0} 19. Ne5 {out of book 406} 19... Ka8 {0.55/14 225} 20.
>Qxc4 {76} 20... Bxe5 {0.38/14 288} 21. dxe5 {23} 21... Qxe5 {0.25/14 239} 22.
>Qxc6+ {79} 22... Rb7 {0.14/3 0} 23. Bc3 {196} 23... Qf5+ {0.34/16 388} 24. Rc2
>{2} 24... Nd5 {0.32/17 467} 25. Rhc1 {1} 25... Rd8 {0.34/16 640} 26. Ka1 {2}
>26... Qg5 {0.36/14 206} 27. g3 {279} 27... Nxc3 {0.42/16 31} 28. Qxc3 {82}
>28... f6 {0.44/17 404} 29. f4 {470} 29... Qd5 {0.40/17 743} 30. Qe3 {2} 30...
>g5 {0.40/14 208} 31. h4 {406} 31... gxh4 {0.34/14 305} 32. gxh4 {1} 32... Rb6 {
>0.33/14 249} 33. Qe2 {595} 33... Rb7 {0.38/14 324} 34. h5 {353} 34... Rb5 {
>0.28/14 198} 35. Rc6 {222} 35... Re8 {0.44/14 211} 36. Qe3 {128} 36... Reb8 {
>0.52/14 263} 37. Qxe6 {506} 37... Qxe6 {0.59/17 0} 38. Rxe6 {518} 38... Rf5 {
>0.64/18 0} 39. b3 {487} 39... Rxf4 {0.78/19 569} 40. Re7 {762} 40... Rf5 {
>0.66/18 723} 41. Rcc7 {76} 41... Ra5 {0.71/18 156} 42. Kb2 {54} 42... Rg8 {
>0.82/17 270} 43. Rh7 {86} 43... Rxh5 {1.05/16 284} 44. Rxa7+ {71} 44... Kb8 {
>0.47/3 0} 45. a4 {557} 45... Rf5 {0.88/14 215} 46. Rab7+ {1} 46... Ka8 {
>1.02/17 309} 47. Ka3 {229} 47... h5 {1.16/17 195} 48. Ra7+ {2} 48... Kb8 {
>0.57/3 1} 49. a5 {91} 49... Re8 {1.42/15 265} 50. b4 {2} 50... Re3+ {
>1.76/14 166} 51. Ka4 {109} 51... Rf1 {2.03/16 45} 52. Raf7 {287} 52... Ra1+ {
>1.96/17 258} 53. Kb5 {1} 53... Re5+ {2.01/16 230} 54. Kc4 {1} 54... Rc1+ {
>1.92/16 385} 55. Kb3 {1} 55... Rc6 {2.10/15 381} 56. Rf8+ {265} 56... Rc8 {
>2.68/18 0} 57. Rxf6 {60} 57... Rce8 {2.90/16 525} 58. Rff7 {464} 58... R5e6 {
>3.12/16 192} 59. Rxh5 {536} 59... Re1 {3.21/19 0} 60. Rhh7 {493} 60... Ka8 {
>3.27/17 0} 61. Ra7+ {203} 61... Kb8 {3.07/3 0} 62. Rad7 {445} 62... Ra1 {
>3.21/15 160} 63. Kc3 {207} 63... Ra3+ {3.38/15 193} 64. Kc4 {18} 64... Ra1 {
>3.41/17 168} 65. Rhg7 {222} 65... Rc1+ {3.33/17 325} 66. Kb3 {1} 66... Ra1 {
>3.27/15 173} 67. Kc3 {265} 67... Ra3+ {3.38/15 197} 68. Kd4 {36} 68... Rh8 {
>3.41/16 154} 69. Rb7+ {77} 69... Ka8 {3.68/18 168} 70. Ra7+ {39} 70... Kb8 {
>3.12/3 0} 71. Rgb7+ {279} 71... Kc8 {3.08/3 0} 72. Rf7 {213}
Another example of how computers struggle with general endgame knowledge.
The general idea is to exchange one pair of rooks in these kinds of positions.
It is very hard to harass an enemy king with just one rook. So here at move
72, Ra8+ would accomplish a rook swap. The win would be elementary from then
on (one would have to be alert to stalemate possibilities but the computers
should have no trouble here to win). Do any programs plat R-a8+ in this
position. It's kind of comical that Nimzo could not win this endgame.
72... Rh4+ {
>2.93/17 288} 73. Kc5 {159} 73... Rh5+ {2.89/16 116} 74. Kc6 {263} 74... Rh6+ {
>2.91/17 176} 75. Kd5 {1} 75... Rh5+ {2.89/17 356} 76. Kd6 {1} 76... Rh6+ {
>2.95/17 288} 77. Ke5 {1} 77... Rh5+ {2.93/16 228} 78. Kf4 {134} 78... Kb8 {
>2.76/15 0} 79. Rfb7+ {858} 79... Kc8 {2.57/3 0} 80. Rg7 {487} 80... Kb8 {
>2.99/16 225} 81. Raf7 {3} 81... Rh4+ {2.88/17 311} 82. Ke5 {2} 82... Rh5+ {
>2.86/17 383} 83. Ke6 {162} 83... Rh6+ {2.80/16 148} 84. Kf5 {30} 84... Rh8 {
>2.99/17 256} 85. Kf6 {242} 85... Rh6+ {2.68/16 419} 86. Kg5 {1} 86... Rc6 {
>2.78/18 330} 87. Kf5 {7} 87... Ra4 {2.82/17 303} 88. Rb7+ {270} 88... Ka8 {
>2.21/18 310} 89. Ke5 {2} 89... Rc4 {1.36/17 279} 90. Ra7+ {265} 90... Kb8 {
>3.00/3 0} 91. Rgb7+ {322} 91... Kc8 {1.27/3 0} 92. Rh7 {435} 92... Kb8 {
>1.28/17 142} 93. b5 {153} 93... Re4+ {0.00/17 74} 94. Kf6 {217} 94... Rf4+ {
>0.00/19 0} 95. Ke6 {188} 95... Rfe4+ {0.00/19 0} 96. Kd7 {248} 96... Rad4+ {
>0.00/20 0} 97. Kc6 {1} 97... Rc4+ {0.00/21 111} 98. Kd5 {104} 98... Rcd4+ {
>0.00/21 214} 99. Kc5 {40} 99... Rc4+ {0.00/20 85} 100. Kd6 {95} 100... Rcd4+ {
>0.00/21 164} 101. Kc5 {1} 101... Rc4+ {0.00/20 93} 102. Kd6 {1} 102... Rcd4+ {
>0.00/21 261} 103. Kc5 {6} 1/2-1/2
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