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Subject: Re: Rybka will lose to Topalov

Author: Sune Larsson

Date: 04:39:10 01/31/06

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On January 31, 2006 at 07:15:21, Uri Blass wrote:

>On January 31, 2006 at 07:10:09, Sune Larsson wrote:
>
>>On January 31, 2006 at 06:22:00, Uri Blass wrote:
>>
>>>On January 31, 2006 at 05:43:23, ramon  b. de robles wrote:
>>>
>>>>The beta version of Rybka will lose to Topalov if the match will take place
>>>>today.
>>>>He will be smashed in the endgame by Topalov.
>>>
>>>No proof for it.
>>
>>
>>
>>>
>>>I think that rybka is a very strong endgame player.
>>>It's main advantage relative to other engines is not the endgame but it does not
>>>do it a weak endgame player.
>>
>>
>>
>>     You *think* that Rybka is a very strong endgame player.
>>     Where is the proof?
>
>The proof is that I see games when rybka beat the top programs in the endgame.


       Again. What is your definition of "very strong endgame player"?

       /S


>
>Note that it is possible that rybka may earn more from improvement in middle
>game knowledge.
>
>Here are 2 games that it lost against Fritz in the middle game
>
>[Event "CEGT 40/40 (2 Ghz)"]
>[Site "CEGT"]
>[Date "2006.01.29"]
>[Round "6.1"]
>[White "Fritz 9"]
>[Black "Rybka 1.01 Beta 13 32-bit"]
>[Result "1-0"]
>[ECO "E00"]
>[PlyCount "131"]
>[EventDate "2005.09.21"]
>[EventType "tourn"]
>[TimeControl "40/960:40/960:40/960"]
>
>1. c4 {0} e6 {0} 2. d4 {0} Nf6 {0} 3. Nf3 {0} d5 {0} 4. g3 {0} g6 {0} 5. Bg2 {
>0.52/12 23} Bg7 {0.14/12 27} 6. O-O {(cxd5) 0.49/13 54} O-O {0.20/14 35} 7. Qc2
>{(cxd5) 0.50/12 44} Nc6 {(Nbd7) 0.00/11 12} 8. Rd1 {(c5) 0.52/12 22} Qe7 {
>0.04/12 26} 9. Bf4 {(cxd5) 0.52/12 37} Nb4 {0.04/12 45} 10. Qc1 {0.55/12 33}
>dxc4 {(Rd8) 0.18/11 45} 11. Qxc4 {0.57/13 40} Nfd5 {0.20/13 36} 12. Bg5 {
>0.52/14 31} f6 {0.23/14 31} 13. Bd2 {0.47/13 18} Nc6 {(a5) 0.21/14 50} 14. a4 {
>(Nc3) 0.54/13 50} a5 {(Nb6) 0.25/13 72} 15. Nc3 {0.68/12 21} Nb6 {0.26/13 19}
>16. Qb3 {(Qc5) 0.63/14 49} Nb4 {(Qb4) 0.25/13 23} 17. Nb5 {0.71/13 29} c6 {
>0.27/13 23} 18. Na3 {0.49/14 58} Rf7 {(Kh8) 0.31/14 35} 19. Nc2 {0.76/14 27}
>Nxc2 {0.30/15 19} 20. Qxc2 {0.61/14 25} Nd5 {0.32/14 14} 21. Rac1 {
>(e4) 0.65/13 15} Bd7 {(e5) 0.31/14 24} 22. Qb3 {0.73/13 24} Nb4 {0.31/13 51}
>23. h3 {(Bh3) 0.71/13 46} Bf8 {(Bc8) 0.33/11 17} 24. Qe3 {(e4) 0.71/12 22} Qe8
>{0.15/11 18} 25. Qf4 {(Nh2) 0.59/12 30} Qd8 {(b6) 0.04/12 50} 26. Qh4 {
>(Bxb4) 0.71/12 17} Be7 {(Rc8) 0.00/12 21} 27. Bh6 {(b3) 0.71/12 19} Qb6 {
>0.00/12 16} 28. Rd2 {(Qe4) 0.52/12 21} Na2 {-0.18/13 14} 29. Ra1 {0.61/14 13}
>Qb3 {0.04/14 33} 30. Qe4 {0.55/13 12} Nb4 {0.14/14 23} 31. Qb1 {0.54/13 17} Na6
>{0.12/13 17} 32. Rd3 {(e4) 0.59/12 16} Qb6 {0.03/14 53} 33. Qd1 {
>(Rc3) 0.54/12 14} Nb4 {0.00/12 13} 34. Rd2 {(Rc3) 0.66/14 23} Bf8 {
>(Qd8) 0.04/11 16} 35. Bxf8 {0.72/15 32} Raxf8 {(Rfxf8) 0.16/13 15} 36. e4 {
>(Qb3) 0.79/14 17} Qc7 {0.23/12 14} 37. Qb3 {0.84/12 11} b6 {(Rd8) 0.27/12 14}
>38. Rc1 {0.82/13 15} Qa7 {(c5) 0.37/11 15} 39. e5 {(Bf1) 1.15/14 19} f5 {
>0.50/13 6} 40. Rdd1 {(Ng5) 1.07/12 6} Qa8 {(Nd5) 0.24/11 10} 41. Nd2 {
>1.40/15 22} Qd8 {(g5) 0.48/14 41} 42. Nc4 {1.18/14 20} Rg7 {(g5) 0.53/15 46}
>43. Nd6 {(Rc3) 1.18/14 34} h5 {(g5) 0.45/13 32} 44. Rc4 {1.22/13 33} Rh7 {
>(h4) 0.35/13 62} 45. Rdc1 {(h4) 1.27/12 21} h4 {0.22/12 19} 46. R4c3 {
>(Qe3) 1.08/12 20} Qg5 {(Kh8) 0.24/13 49} 47. f4 {(Rf1) 1.32/13 18} Qh6 {
>(Qh5) 0.00/14 22} 48. Rf1 {1.22/14 45} Rg7 {(Kh8) 0.00/14 17} 49. g4 {
>(Rf2) 1.09/13 18} fxg4 {0.27/14 16} 50. hxg4 {1.25/14 26} Qh8 {
>(Rxf4) 0.87/14 127} 51. Kh1 {(Ne4) 2.19/13 20} Nd5 {0.98/13 21} 52. Bxd5 {
>2.64/14 20} cxd5 {1.12/13 15} 53. Qxb6 {2.62/14 17} h3 {1.47/14 41} 54. Kh2 {
>2.91/14 20} Qh4 {1.85/14 20} 55. Rg3 {3.21/14 20} Bxa4 {2.12/13 17} 56. Qxa5 {
>3.38/14 38} Bc6 {(Bd7) 2.24/13 26} 57. Qd2 {3.61/13 24} Bd7 {2.51/13 18} 58.
>Rff3 {(Qe2) 4.43/14 52} Qe7 {(Rh7) 3.22/14 92} 59. b4 {4.53/14 18} Bc8 {
>(Qd8) 3.75/14 35} 60. f5 {(Qc2) 5.21/14 33} exf5 {4.15/13 22} 61. Nxc8 {
>5.63/14 19} Rxc8 {4.42/13 6} 62. gxf5 {5.48/14 17} Qc7 {(Qf7) 5.75/14 87} 63.
>Rc3 {8.63/14 18} Qd8 {9.22/13 61} 64. Qh6 {11.26/14 18} Rxc3 {9.28/13 5} 65.
>Rxc3 {11.48/15 21} gxf5 {10.12/14 10} 66. Qe6+ {12.35/14 23} 1-0
>
>[Event "CEGT 40/40 (2 Ghz)"]
>[Site "CEGT"]
>[Date "2006.01.30"]
>[Round "7.1"]
>[White "Rybka 1.01 Beta 13 32-bit"]
>[Black "Fritz 9"]
>[Result "0-1"]
>[ECO "A41"]
>[PlyCount "82"]
>[EventDate "2005.09.21"]
>[EventType "tourn"]
>[TimeControl "40/960:40/960:40/960"]
>
>1. d4 {0} Nc6 {0} 2. Nf3 {0} d6 {0} 3. c4 {0} e5 {0} 4. Nc3 {0} Bg4 {0} 5. d5 {
>0} Nce7 {0} 6. e4 {0} Ng6 {0} 7. c5 {0.37/12 21} dxc5 {(Nf6) 0.33/12 22} 8.
>Bb5+ {(Qb3) 0.45/11 7} Bd7 {0.35/13 24} 9. Qb3 {0.40/12 25} Rb8 {0.45/14 33}
>10. h4 {0.25/12 40} h5 {0.43/13 24} 11. Bxd7+ {(Bg5) 0.15/12 32} Qxd7 {
>-0.24/14 46} 12. Qa3 {(Bg5) -0.01/13 39} a6 {-0.51/14 27} 13. Bg5 {
>(Be3) -0.23/13 51} Bd6 {(Nf6) -0.47/13 22} 14. O-O {(Ne2) -0.19/12 24} N8e7 {
>-0.82/14 32} 15. Rac1 {(Ne2) -0.26/13 30} c4 {(0-0) -0.90/14 44} 16. Qa5 {
>-0.28/12 6} O-O {-0.69/14 38} 17. b3 {(Nd2) -0.29/13 33} f6 {(cxb3) -1.27/14 20
>} 18. Bd2 {(Be3) -0.47/14 31} cxb3 {-1.27/14 26} 19. axb3 {-0.48/14 39} Qg4 {
>-1.04/14 78} 20. Nh2 {(Rfe1) -0.57/14 106} Qxh4 {-1.09/14 63} 21. Rfe1 {
>-0.49/13 82} Rbc8 {(Ra8) -1.12/13 46} 22. Rc2 {-0.56/12 38} f5 {
>(c6) -1.03/13 30} 23. Nf3 {-0.66/13 27} Qf6 {-0.95/14 16} 24. Bg5 {-0.83/13 47}
>Qf7 {-1.08/14 27} 25. Bc1 {-0.88/12 30} Qe8 {(fxe4) -1.24/13 33} 26. Ng5 {
>-0.70/11 11} Rf6 {(fxe4) -1.12/11 24} 27. Bd2 {-0.69/10 35} Qd7 {-1.36/11 16}
>28. Qa1 {-0.86/10 29} f4 {-1.52/13 22} 29. Nf3 {-1.28/12 27} h4 {-1.86/14 32}
>30. Kh2 {-1.41/12 18} Nh8 {(Qg4) -1.94/13 30} 31. Rg1 {(Rh1) -1.27/10 11} Nf7 {
>-2.10/12 15} 32. Qf1 {(Rh1) -1.43/10 12} g5 {(Rg6) -3.02/13 25} 33. Kh1 {
>(Ne1) -1.48/11 11} g4 {-3.56/14 19} 34. Ne1 {(Nh2) -2.00/12 18} Ng5 {
>-3.84/12 16} 35. Nd3 {(Qd3) -2.14/12 16} g3 {(h3) -4.23/13 25} 36. Qc1 {
>(Bxf4) -3.62/10 31} Rg6 {(Rh6) -5.16/11 14} 37. Be1 {-4.09/9 15} Qg4 {
>(h3) -10.27/12 25} 38. Ne2 {-5.44/9 7} f3 {-11.09/12 13} 39. Qe3 {-8.24/9 4}
>Rf8 {-15.23/12 18} 40. Rc3 {(Rc4) -9.52/9 5} Nxe4 {(fxg2+) -16.19/12 15} 41.
>Ndf4 {-11.40/11 37} gxf2 {-16.50/12 19} 0-1
>
>Uri



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