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Subject: Re: tablebases Fritz problem

Author: blass uri

Date: 16:17:28 04/03/00

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On April 03, 2000 at 16:03:54, Bertil Eklund wrote:

>On April 03, 2000 at 14:15:16, blass uri wrote:
>
>>On April 03, 2000 at 13:51:13, Tony Hedlund wrote:
>>
>>>[Event "120'/40+60'/20+60'20"]
>>>[Site "SSDF"]
>>>[Date "2000.04.03"]
>>>[Round "23"]
>>>[White "Fritz 6 AMD K6-2 450"]
>>>[Black "Junior 6 AMD K6-2 450"]
>>>[Result "1/2-1/2"]
>>>[ECO "E32"]
>>>[BlackElo "2706"]
>>>[Annotator "Tony Hedlund"]
>>>[PlyCount "199"]
>>>[EventDate "2000.03.25"]
>>>
>>>{96MB, general.ctg. AMD K6-2 450
>>>} 1. d4 {0} 1... Nf6 {0} 2. c4 {0} 2... e6 {0
>>>} 3. Nc3 {0} 3... Bb4 {0} 4. Qc2 {0} 4... O-O {0} 5. a3 {0} 5... Bxc3+ {0} 6.
>>>Qxc3 {0} 6... b6 {0} 7. Bg5 {0} 7... Bb7 {0} 8. f3 {0} 8... h6 {0} 9. Bh4 {0}
>>>9... d5 {0} 10. e3 {0} 10... Nbd7 {0} 11. cxd5 {0} 11... Nxd5 {0} 12. Bxd8 {0}
>>>12... Nxc3 {0} 13. Bh4 {0} 13... Nd5 {0} 14. Bf2 {0} 14... f5 {0} 15. Bb5 {0}
>>>15... c6 {0} 16. Ba4 {0} 16... e5 {259} 17. Ne2 {0} 17... Rae8 {0} 18. O-O {0}
>>>18... e4 {last book move 195} 19. fxe4 {0.06/14 491} 19... fxe4 {258} 20. Nc3 {
>>>0.03/14 235} 20... N7f6 {295} 21. Nxd5 {0.09/14 27} 21... Nxd5 {151} 22. Rac1 {
>>>0.13/16 594} 22... Rf6 {2} 23. Rfe1 {0.34/15 229} 23... Rfe6 {326} 24. Bg3 {
>>>0.38/16 0} 24... a5 {256} 25. Bc2 {0.38/15 265} 25... Kh8 {312} 26. Be5 {
>>>0.53/15 228} 26... Nf6 {65} 27. b4 {0.59/15 589} 27... Nd7 {361} 28. Bg3 {
>>>0.63/15 339} 28... axb4 {2} 29. axb4 {0.66/16 541} 29... Nf6 {577} 30. Be5 {
>>>0.63/17 0} 30... Nd7 {452} 31. Bxe4 {0.59/16 669} 31... Nxe5 {2} 32. dxe5 {
>>>0.69/16 183} 32... Rb8 {569} 33. Re2 {0.53/17 0} 33... Kg8 {243} 34. Kf2 {
>>>0.47/16 690} 34... Rf8+ {243} 35. Kg3 {0.53/16 376} 35... Rxe5 {148} 36. Bxc6 {
>>>0.50/15 69} 36... Rg5+ {722} 37. Kh4 {0.53/17 0} 37... Rc8 {459} 38. Rec2 {
>>>0.50/17 0} 38... Bxc6 {290} 39. Rxc6 {0.53/16 0} 39... Re8 {361} 40. Rc8 {
>>>0.47/16 0} 40... Rge5 {340} 41. g4 {0.53/17 0} 41... Rxe3 {246} 42. Rxe8+ {
>>>0.59/18 0} 42... Rxe8 {52} 43. Rc6 {0.66/18 656} 43... b5 {5} 44. Rc5 {
>>>0.66/17 323} 44... Rb8 {30} 45. g5 {0.63/17 158} 45... Rb6 {124} 46. Kg4 {
>>>0.59/17 197} 46... Kf7 {168} 47. h4 {0.78/16 193} 47... hxg5 {189} 48. h5 {
>>>0.78/17 1} 48... Ke6 {133} 49. Kxg5 {0.84/17 48} 49... Kf7 {123} 50. Rd5 {
>>>0.88/18 607} 50... Rb8 {236} 51. Rd7+ {1.03/17 232} 51... Kf8 {207} 52. Rd6 {
>>>1.13/18 401} 52... Kf7 {160} 53. Rc6 {0.84/18 167} 53... Rb7 {189} 54. Kf5 {
>>>1.59/18 413} 54... Rd7 {10} 55. Ke5 {1.56/16 201} 55... Re7+ {474} 56. Kd5 {
>>>1.63/16 144} 56... Re1 {739} 57. Rc5 {1.72/18 3} 57... Rb1 {148} 58. Rxb5 {
>>>1.72/16 1} 58... Kf6 {316} 59. Kc4 {1.91/17 1} 59... Rc1+ {112} 60. Kb3 {
>>>1.78/16 171} 60... Rb1+ {7} 61. Kc2 {1.91/16 220} 61... Rf1 {178} 62. Rc5 {
>>>2.00/16 225} 62... Ke7 {8} 63. b5 {2.00/15 196} 63... Kd6 {54} 64. Rc6+ {
>>>2.00/15 212} 64... Kd7 {302} 65. Rg6 {2.09/16 43} 65... Rf7 {190} 66. Kd3 {
>>>2.09/17 1} 66... Kc8 {278} 67. Ke4 {2.72/17 135} 67... Kb7 {281} 68. Ke5 {
>>>2.38/17 241} 68... Rc7 {74} 69. Rg5 {2.44/16 50} 69... Kb6 {276} 70. Ke6 {
>>>2.41/17 1} 70... Ka5 {156} 71. Rd5 {3.00/16 187} 71... Kb6 {17} 72. Kf5 {
>>>3.88/17 184} 72... Ra7 {259} 73. Kg6 {3.63/17 421} 73... Re7 {10} 74. Rf5 {
>>>3.94/16 140} 74... Rd7 {217} 75. Rf7 {4.47/18 1} 75... Rd5 {222} 76. Rxg7 {
>>>4.94/18 1} 76... Rd6+ {219} 77. Kh7 {7.81/17 0} 77... Rd1 {447} 78. Rg6+ {
>>>10.91/15 126} 78... Kc5 {309} 79. b6 {14.25/13 48} 79... Rb1 {132} 80. b7 {
>>>#37/11 53} 80... Rxb7+ {178} 81. Rg7 {#27/1 1} 81... Rb6 {1} 82. h6 {#26/1 0}
>>>82... Kd5 {0} 83. Re7 {#25/1 0} 83... Rc6 {0} 84. Kg7 {#24/1 0} 84... Rc2 {0}
>>>85. h7 {#23/1 0} 85... Rg2+ {0} 86. Kf8 {#22/1 0} 86... Rh2 {0} 87. Rd7+ {
>>>#21/4 0} 87... Kc6 {0} 88. Rg7 {#20/5 0} 88... Kd5 {0} 89. Rg5+ {#19/4 0} 89...
>>>Ke4 {0} 90. Rg4+ {#22/4 0} 90... Kf5 {0} 91. Rg7 {#21/5 0} 91... Rc2 {0} 92.
>>>Rf7+ {#32/4 0} 92... Kg6 {0} 93. Rg7+ {#31/4 0} 93... Kf6 {0} 94. Rf7+ {#32/4 0
>>>} 94... Kg6 {0} 95. h8=Q {0.00/25 1151} 95... Rc8+ {110} 96. Ke7 {0.00/21 0}
>>>96... Rxh8 {130} 97. Rf6+ {0.00/1 0} 97... Kg5 {0} 98. Rd6 {0.00/1 0} 98... Rh6
>>>{0} 99. Rd8 {0.00/1 0} 99... Rh2 {0} 100. Rg8+ {0.00/1 1} 1/2-1/2
>>
>>
>>I read that the tablebases are productive for fritz,Junior and shredder and
>>gives them at least 20 elo rating.
>>
>>This game did not convince me
>>
>>Fritz missed a win because of tablebases.
>>I do not understand the reason that the ssdf gives Fritz the KRP vs KR
>>tablebases without giving it the KRQ vs KR tablebases.
>>
>>Is the memory in the harddisk too small?
>>
>>Uri
>Hi!
>
>As you know we play with all the Turbo-CDs from Chessbase about 2,5GB.
>
>Bertil

It seems not to be enough and programs that never resign can earn rating from
Fritz.

Fritz could not win the game because of missing KQR vs KR

You should not use tablebases except cases that all the tablebases of less
pieces or the same pieces except changing one pawn to another piece are
included.

a special case is that Fritz should not use KPP vs KP tablebases unless it has
all the 5 pieces tablebases.

Programs that never resign can earn ssdf rating because of your methods.
Junior6a earned a draw because it did not resign when other programs could lose
because they resign.

Uri



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