Author: Robert Hyatt
Date: 02:47:51 08/02/98
Go up one level in this thread
On August 01, 1998 at 21:10:27, Mark Young wrote:
>On August 01, 1998 at 10:38:35, Howard Exner wrote:
>
>>On July 31, 1998 at 15:06:30, Mark Young wrote:
>>
>>>Results of games 1 thur 5
>>>
>>>Crafty 0 0 0 0 0
>>>
>>>Fritz5 1 1 1 1 1
>>>
>>>This game is a good example of Fritz 5 ability to attack queenside, for anyone
>>>who has not seen it before. Capped off with a nice long-term pawn sac to cash in
>>>its positional plus.
>>>
>>>
>>>Game 5
>>>[Event "?"]
>>>[Site "?"]
>>>[Date "????.??.??"]
>>>[Round "?"]
>>>[White "Crafty 15.18 Ppro200 512m ram"]
>>>[Black "Fritz 5 P II 300 64mb ram"]
>>>[Result "0-1"]
>>>[ECO "B31"]
>>>[Annotator "Young,M"]
>>>[PlyCount "164"]
>>>
>>>{46144kB, f5book.ctg
>>>} 1. e4 {0} 1... c5 {0} 2. Nf3 {42} 2... Nc6 {0} 3. Bb5 {
>>>71} 3... g6 {0} 4. O-O {41} 4... Bg7 {0} 5. Re1 {31} 5... Nf6 {0} 6. Nc3 {38}
>>>6... O-O {0} 7. e5 {32} 7... Ne8 {0} 8. d3 {44} 8... Nc7 {0} 9. Bc4 {67} 9...
>>>Ne6 {0} 10. Bd2 {356} 10... b6 {0.03/12 336} 11. Nd5 {52} 11... Bb7 {
>>>-0.13/12 543} 12. a3 {313} 12... a6 {-0.03/11 259} 13. c3 {301} 13... b5 {
>>>-0.09/13 478} 14. Ba2 {32} 14... a5 {0.03/12 397} 15. Nf4 {298} 15... a4 {
>>>-0.06/12 399} 16. Bd5 {44} 16... Qc7 {-0.03/11 366} 17. Rc1 {308} 17... Na5 {
>>>-0.16/12 337} 18. Bxb7 {302} 18... Qxb7 {-0.25/13 1} 19. Rc2 {272} 19... Nb3 {
>>>-0.19/12 185} 20. Be3 {87} 20... Rfc8 {-0.13/11 130} 21. c4 {338} 21... Nxf4 {
>>>-0.25/12 194} 22. Bxf4 {296} 22... b4 {-0.22/13 66} 23. Qe2 {313} 23... Ra6 {
>>>-0.22/11 259} 24. axb4 {303} 24... cxb4 {-0.25/13 376} 25. Rd1 {137} 25... Rac6
>>>{-0.28/11 222} 26. Rb1 {311} 26... d6 {-0.28/12 342} 27. Qe4 {276} 27... dxe5 {
>>>-0.66/12 261} 28. Bxe5 {274} 28... f6 {-0.56/13 34} 29. Bf4 {41} 29... Qd7 {
>>>-0.84/13 336} 30. Qe2 {342} 30... e5 {-0.91/13 205} 31. Bd2 {50} 31... Bf8 {
>>>-0.84/12 112} 32. Be3 {313} 32... Bc5 {-1.00/13 14} 33. Ne1 {255} 33... Rd6 {
>>>-0.97/13 25} 34. Qf3 {271} 34... Bxe3 {-1.16/13 264} 35. Qxe3 {13} 35... Nc5 {
>>>-1.03/13 364} 36. Rd1 {300} 36... Rd4 {-1.03/12 1} 37. f3 {257} 37... Nb3 {
>>>-0.97/13 383} 38. Rb1 {277} 38... Rc5 {-1.06/14 30} 39. Re2 {319} 39... Qf5 {
>>>-0.97/13 382} 40. Qf2 {139} 40... Rc8 {-0.94/13 148} 41. Re3 {21} 41... Rd6 {
>>>-0.91/13 303} 42. Qe2 {271} 42... Nd4 {-0.88/13 70} 43. Qd2 {411} 43... Qg5 {
>>>-0.75/12 240} 44. Qf2 {19} 44... Ne6 {-0.72/11 170} 45. Ra1 {81} 45... Nc5 {
>>>-0.88/13 108} 46. Rd1 {209} 46... Rcd8 {-0.88/13 375} 47. Qe2 {8} 47... R6d7 {
>>>-0.97/13 163} 48. Kh1 {363} 48... Ne6 {-0.84/12 124} 49. Qf2 {354} 49... Rd4 {
>>>-0.81/13 12} 50. Re4 {234} 50... Nc5 {-0.88/14 163} 51. Rxd4 {279} 51... Rxd4 {
>>>-0.75/14 1} 52. Kg1 {245} 52... h6 {-0.75/14 283} 53. Qe2 {265} 53... b3 {
>>>-0.88/14 250} 54. Kf1 {29} 54... Kg7 {-0.78/13 237} 55. Rd2 {337} 55... Qh4 {
>>>-0.88/14 148} 56. Kg1 {263} 56... Rd8 {-0.78/14 105} 57. Qe3 {252} 57... Qd4 {
>>>-0.81/16 42} 58. Qxd4 {246} 58... Rxd4 {-0.78/13 1} 59. Rd1 {254} 59... Kf7 {
>>>-0.75/13 151} 60. Kf2 {243} 60... g5 {-0.78/13 121} 61. g3 {192} 61... h5 {
>>>-0.78/13 133} 62. Ke2 {31} 62... Ke8 {-0.53/12 267} 63. Rd2 {254} 63... f5 {
>>>-0.69/12 263} 64. Rd1 {254} 64... Kd8 {-0.78/12 100} 65. Ng2 {385} 65... a3 {
>>>-0.72/13 310} 66. bxa3 {159} 66... f4 {-0.50/12 136} 67. Ne1 {245}
>>
>>At this point of the game instead of Ne1 the move gxf4 suggests itself.
>>This way the passed h pawn does not become a reality for black.
>>
>It does seem there should be a way to draw this, but position is like a Chinese
>finger puzzle. There might be some subtle defense that I am just over looking,
>but I was unable to save the game for white. I let fritz have a shot at it and
>here s what it came up with.
>
>67. gxf4 exf4 68. h3 b2 69. Ne1 g4 70. hxg4 hxg4 71. Rb1 gxf3+ 72. Kxf3 Na4 73.
>Kg4 Rd7 74. Nf3 Rg7+ 75. Kxf4 Rg2 76. Rh1 Nc3
>
>
>
>> 67... fxg3 {
>>>-0.72/13 515} 68. hxg3 {444} 68... Kc7 {-0.81/13 0} 69. Kd2 {587} 69... h4 {
>>>-0.94/14 392} 70. gxh4 {14} 70... gxh4 {-1.41/13 83} 71. Kc1 {31} 71... h3 {
>>>-1.56/13 115} 72. Rd2 {402} 72... Na4 {-3.69/15 1} 73. Kb1 {271} 73... b2 {
>>>-5.09/14 237} 74. Rc2 {242} 74... Rd8 {-7.16/14 110} 75. c5 {101} 75... Rb8 {
>>>-10.47/14 96} 76. f4 {501} 76... Rb3 {-12.16/13 77} 77. Rc4 {407} 77... h2 {
>>>-#8/9 6} 78. Rxa4 {275} 78... h1=Q {-#7/7 0} 79. Ra7+ {366} 79... Kb8 {-#4/6 2}
>>>80. Ra8+ {91} 80... Kxa8 {-#3/3 1} 81. fxe5 {204} 81... Qxe1+ {-#2/1 1} 82. Kc2
>>>{190} 82... b1=Q# {-#1/1 1} 0-1
It might be bad analysis, but crafty was going to play gxf4, but it failed low
at depth=13, and it switched to Ne1 (gxf4 was -.5, Ne1 was -.1). But this is
in the passed pawn code, and that's where there seems to be a problem that is
unfixed to date. I did find and fix the gross king safety bugs introduced a
week or two ago, but I have not had time to chase this passed pawn bug just yet,
although maybe tonight...
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