Author: Harald Faber
Date: 01:02:54 04/09/00
Go up one level in this thread
On April 07, 2000 at 06:51:56, blass uri wrote:
>Junior6a let hiarcs7.32 to trade rooks by 116.Rc3
>
>8/3b4/8/8/2RrkPp1/6K1/6P1/8 w - - 0 1
>
>I found that Junior5 or Junior5.9 can avoid this mistake in 1 hour/game on
>pIII450
>
>What is the reason for Junior6a's mistake that older versions avoid?
>Tablebase bug,learning bug or another reason?
I don't know, but I also wonder.
On my Athlon500 with ALL TBs(!) Junior needs only 87sec to change back from Rc3
to Rxd4+ at d=20 and stays there up to d=22.
But I also think the position is lost. It may be not easy because with rooks on
board white has some practical chances to draw but it should be possible.
>
>I post the relevant game:
>
>[Event "120'/40+60'/20+0'0"]
>[Site "SSDF"]
>[Date "2000.01.29"]
>[Round "1"]
>[White "Junior 6a AMD K6-2 450"]
>[Black "Hiarcs 7.32 AMD K6-2 450"]
>[Result "0-1"]
>[ECO "D38"]
>[WhiteElo "2706"]
>[BlackElo "2624"]
>[Annotator "Tony Hedlund"]
>[PlyCount "264"]
>[EventDate "2000.01.28"]
>
>{96MB, jbook.ctg. AMD K6-2 450} 1. d4 {1} 1... d5 {0} 2. c4 {0} 2... e6 {0} 3.
>Nc3 {0} 3... Nf6 {0} 4. Nf3 {0} 4... Bb4 {0} 5. cxd5 {0} 5... exd5 {0} 6. Bg5 {
>0} 6... h6 {0} 7. Bh4 {0} 7... c5 {0} 8. e3 {0} 8... Nc6 {0} 9. Bb5 {0} 9...
>Bd7 {last book move 389} 10. dxc5 {0.44/15 274} 10... g5 {289} 11. Bg3 {
>0.51/16 2} 11... O-O {530} 12. O-O {0.81/15 252} 12... Bxc3 {8} 13. bxc3 {
>0.86/16 359} 13... Re8 {0} 14. c4 {0.85/16 524} 14... a6 {0} 15. cxd5 {
>0.88/17 481} 15... axb5 {0} 16. dxc6 {0.85/17 158} 16... Bxc6 {81} 17. Qc2 {
>0.71/17 416} 17... Ne4 {154} 18. Rfd1 {0.67/16 2} 18... Qf6 {373} 19. Nd4 {
>0.76/17 220} 19... Ra4 {25} 20. Qb2 {0.58/16 290} 20... Rc4 {287} 21. Rac1 {
>0.61/16 328} 21... Ra8 {43} 22. Bd6 {0.64/15 235} 22... Rca4 {260} 23. Rc2 {
>0.42/16 254} 23... Nxd6 {11} 24. cxd6 {0.22/15 105} 24... Qxd6 {262} 25. Qc1 {
>0.30/17 491} 25... Rxa2 {239} 26. Rxa2 {0.08/17 2} 26... Rxa2 {282} 27. Qb1 {
>0.05/17 108} 27... Qa3 {176} 28. Ne6 {0.24/17 372} 28... Be8 {876} 29. Rd8 {
>0.12/18 2} 29... f5 {363} 30. Rd1 {0.08/16 2} 30... Qa4 {347} 31. Rf1 {
>0.45/15 239} 31... Bf7 {290} 32. Nd4 {0.28/17 122} 32... f4 {158} 33. Nf5 {
>0.28/15 22} 33... Kh7 {707} 34. Qd3 {0.13/15 274} 34... Qc4 {151} 35. Qd7 {
>0.34/16 27} 35... Qe6 {227} 36. Qxb5 {0.26/17 240} 36... b6 {0} 37. Nd4 {
>0.29/15 443} 37... Qe4 {254} 38. Qd7 {0.16/16 2} 38... Qd5 {139} 39. Qe7 {
>0.28/17 78} 39... fxe3 {213} 40. Qxe3 {0.25/16 2} 40... b5 {33} 41. Qc3 {
>0.27/17 898} 41... Qc4 {0} 42. Qf3 {0.20/15 109} 42... b4 {82} 43. Qf6 {
>0.15/15 164} 43... Ra6 {33} 44. Qf5+ {0.21/15 241} 44... Kg8 {0} 45. Qd7 {
>0.17/17 403} 45... Rf6 {289} 46. Nf5 {0.11/16 269} 46... Qe6 {243} 47. Qd8+ {
>0.07/18 2} 47... Kh7 {212} 48. Ne3 {0.08/18 663} 48... Qd6 {0} 49. Qa5 {
>0.08/18 506} 49... Qb6 {0} 50. Qe5 {0.21/15 106} 50... Qe6 {73} 51. Qb2 {
>0.38/17 162} 51... Rf4 {271} 52. Ra1 {0.43/15 95} 52... Qf6 {151} 53. Qc2+ {
>0.28/16 273} 53... Kg7 {13} 54. Ra7 {0.24/14 164} 54... Qd4 {82} 55. Ra4 {
>0.24/12 41} 55... Bg6 {377} 56. Qe2 {0.09/16 2} 56... Rf7 {363} 57. Qe1 {
>0.13/14 59} 57... Rb7 {363} 58. Nf1 {0.07/14 55} 58... Bd3 {363} 59. Nd2 {
>-0.12/15 81} 59... Qc5 {476} 60. Qa1+ {-0.80/17 138} 60... Qc3 {125} 61. Qe1 {
>-1.73/17 349} 61... b3 {187} 62. h4 {-2.30/15 111} 62... b2 {280} 63. Qe3 {
>-2.27/16 2} 63... Qxd2 {270} 64. Qxd2 {-2.03/15 69} 64... b1=Q+ {106} 65. Kh2 {
>-2.03/17 877} 65... Qb5 {0} 66. Ra3 {-2.08/15 130} 66... Rd7 {63} 67. hxg5 {
>-2.09/15 503} 67... Qxg5 {0} 68. Qxg5+ {-2.13/16 583} 68... hxg5 {0} 69. Ra4 {
>-2.16/19 146} 69... Kf6 {89} 70. f4 {-2.20/18 34} 70... g4 {163} 71. Kg3 {
>-2.21/19 2} 71... Bf5 {154} 72. Ra6+ {-2.21/21 2} 72... Be6 {267} 73. Ra5 {
>-2.21/21 2} 73... Rd3+ {213} 74. Kh4 {-2.21/21 2} 74... Rd2 {275} 75. Kg3 {
>-2.21/20 2} 75... Rd3+ {983} 76. Kh4 {0.00/27 42} 76... Rd4 {49} 77. Kg3 {
>-2.20/21 279} 77... Rc4 {4} 78. Rh5 {-2.20/20 144} 78... Rc3+ {73} 79. Kh4 {
>-2.20/20 141} 79... Rc2 {40} 80. Kg3 {-2.20/19 137} 80... Rc3+ {558} 81. Kh4 {
>0.00/26 46} 81... Rb3 {129} 82. Rh8 {-2.10/20 293} 82... Rb7 {192} 83. Kg3 {
>-2.05/19 179} 83... Kg6 {191} 84. Re8 {-2.07/19 264} 84... Kf5 {495} 85. Rf8+ {
>-2.04/18 184} 85... Bf7 {6} 86. Ra8 {-2.10/19 217} 86... Rd7 {5} 87. Ra5+ {
>-1.98/19 194} 87... Rd5 {15} 88. Ra8 {-1.98/19 157} 88... Rd7 {1412} 89. Ra5+ {
>0.00/20 40} 89... Rd5 {662} 90. Ra8 {0.00/21 63} 90... Rb5 {5} 91. Rf8 {
>-2.00/19 226} 91... Rb7 {63} 92. Ra8 {0.00/21 47} 92... Rb3+ {4} 93. Kh4 {
>-2.00/20 391} 93... Rd3 {7} 94. Rf8 {-2.00/21 300} 94... Rd7 {6} 95. Kg3 {
>-2.00/20 232} 95... Rc7 {7} 96. Rb8 {-2.00/19 283} 96... Rc3+ {85} 97. Kh4 {
>-2.01/18 3} 97... Rc4 {97} 98. Rf8 {-2.00/18 49} 98... Rc7 {94} 99. Kg3 {
>-1.98/20 166} 99... Rd7 {6} 100. Rb8 {-1.84/20 189} 100... Rd3+ {6} 101. Kh4 {
>-1.83/19 117} 101... Be6 {73} 102. Rf8+ {-1.44/19 142} 102... Kg6 {53} 103. Re8
>{-1.45/19 123} 103... Kf7 {85} 104. Ra8 {-1.23/20 249} 104... Rd5 {128} 105.
>Kg3 {-1.55/20 169} 105... Rc5 {211} 106. Rd8 {-1.40/20 280} 106... Rc8 {207}
>107. Rd3 {-1.12/20 124} 107... Kf6 {14} 108. Ra3 {-1.59/22 429} 108... Rc5 {163
>} 109. Rd3 {-2.04/21 176} 109... Kf5 {231} 110. Re3 {-2.14/22 2} 110... Rb5 {
>237} 111. Re2 {-1.86/19 357} 111... Ra5 {258} 112. Re1 {-1.89/19 261} 112...
>Rd5 {263} 113. Re3 {-2.21/21 160} 113... Bd7 {256} 114. Rc3 {-2.57/22 247}
>114... Ke4 {5} 115. Rc4+ {-2.57/21 148} 115... Rd4 {140} 116. Rc3 {-2.57/21 45}
>116... Rd3+ {255} 117. Rxd3 {-5.01/34 2} 117... Kxd3 {32} 118. Kh4 {-#12/34 200
>} 118... Ke4 {10} 119. g3 {-#11/36 147} 119... Kf3 {1} 120. Kg5 {-#11/35 178}
>120... Kxg3 {0} 121. f5 {-#11/35 353} 121... Bxf5 {0} 122. Kxf5 {-#12/1 1}
>122... Kf3 {1} 123. Ke5 {-#10/1 0} 123... g3 {0} 124. Kd4 {-#9/1 0} 124... g2 {
>0} 125. Kd5 {-#8/1 0} 125... g1=Q {0} 126. Ke5 {-#7/1 0} 126... Qd1 {0} 127.
>Ke6 {-#6/1 0} 127... Kf4 {0} 128. Kf7 {-#6/1 0} 128... Qd6 {0} 129. Ke8 {
>-#4/1 0} 129... Qc7 {0} 130. Kf8 {-#4/1 0} 130... Kf5 {0} 131. Ke8 {-#2/1 0}
>131... Kf6 {0} 132. Kf8 {-#2/1 0} 132... Qf7# {0} 0-1
>
>
>Uri
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