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Subject: Odd blunder

Author: Albert Silver

Date: 13:35:03 11/29/04

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>[Event "SSDF"]
>[Site "SSDF"]
>[Date "2004.11.28"]
>[Round "28"]
>[White "Chess Tiger 2004 A1200"]
>[Black "Deep Fritz 8 A1200"]
>[Result "0-1"]
>[ECO "E19"]
>[BlackElo "2790"]
>[Annotator "Tony Hedlund"]
>[PlyCount "149"]
>[EventDate "2004.11.16"]
>[TimeControl "40/7200:40/7200:40/7200"]
>
>{96MB, DFritz8.ctg, A1200} 1. d4 {[0:00:00]} Nf6 {[0:00:01]} 2. c4 {
>[0:00:00]} e6 {[0:00:00]} 3. Nf3 {(g3) [0:00:00]} b6 {
>[0:00:00]} 4. g3 {(a3) [0:00:00]} Bb7 {[0:00:00]} 5. Bg2 {
>[0:00:00]} Be7 {[0:00:00]} 6. O-O {(Sc3) [0:00:00]} O-O {
>[0:00:00]} 7. Nc3 {[0:00:00]} Ne4 {[0:00:00]} 8. Qc2 {
>[0:00:00]} Nxc3 {[0:00:00]} 9. Qxc3 {[0:00:00]} c5 {
>[0:00:00]} 10. b3 {(Td1) [0:00:00]} Bf6 {[0:00:00]} 11. Bb2 {
>[0:00:01]} cxd4 {[0:00:00]} 12. Nxd4 {[0:00:00]} Bxg2 {
>[0:00:00]} 13. Kxg2 {[0:00:00]} Nc6 {[0:00:00]} 14. Qe3 {
>[0:00:00]} Qc8 {[0:00:00]} 15. Rfd1 {[0:06:05]} Rd8 {
>[0:00:00]} 16. Rac1 {(Df3) [0:05:51]} d6 {[1,14] [0:06:34]
>} 17. f3 {(De4) [0:04:20]} Ne7 {[-39,15] [0:05:49]} 18. Qd2 {
>(De4) [0:03:43]} Qc5 {[-36,14] [0:04:27]} 19. e4 {
>[0:06:29]} a6 {[-28,14] [0:02:25]} 20. Qe2 {(f4) [0:12:43]
>} Ng6 {[-20,13] [0:04:09]} 21. f4 {[0:03:58]} Re8 {
>[-5,15] [0:12:24]} 22. Rc2 {(Lc3) [0:03:44]} Ne7 {
>[0,14] [0:13:35]} 23. Rcd2 {(a3) [0:05:36]} Rab8 {
>[11,14] [0:13:11]} 24. Qg4 {(Df2) [0:03:45]} Kh8 {
>[28,13] [0:06:03]} 25. Re2 {(f5) [0:03:31]} Ng6 {
>[9,14] [0:05:51]} 26. Qf3 {(f5) [0:00:00]} Rbd8 {
>[-3,14] [0:05:19]} 27. Red2 {(f5) [0:03:49]} Kg8 {
>[0,13] [0:04:53]} 28. Qf2 {[0:00:00]} Qc8 {
>[0,14] [0:04:03]} 29. Kf1 {(Sf3) [0:04:21]} Qb7 {
>[-17,13] [0:04:38]} 30. Qe2 {(Df3) [0:01:01]} Qa8 {
>[-9,13] [0:04:58]} 31. Qf3 {(b4) [0:08:57]} Qc8 {
>[0,13] [0:04:46]} 32. a4 {(Df2) [0:04:13]} Qc5 {
>[3,13] [0:06:21]} 33. Bc3 {[0:00:00]} h6 {
>[5,12] [0:02:57]} 34. Ne2 {(a5) [0:11:02]} Bxc3 {
>[29,12] [0:00:55]} 35. Nxc3 {[0:09:03]} Qb4 {
>[32,15] [0:00:00]} 36. Na2 {(Se2) [0:02:40]} Qa3 {
>[27,14] [0:01:36]} 37. Qc3 {[0:01:27]} Qc5 {
>[25,14] [0:00:47]} 38. Nb4 {(e5) [0:03:02]} a5 {
>[5,14] [0:01:32]} 39. Nc2 {[0:02:22]} Rd7 {
>[14,14] [0:00:00]} 40. Nd4 {(De3) [0:08:21]} Ne7 {
>[46,13] [0:02:19]} 41. Qf3 {[0:02:56]} Red8 {
>[49,14] [0:00:24]} 42. Nb5 {(f5) [0:03:21]} Qc6 {
>[44,15] [0:04:18]} 43. Kg2 {[0:02:21]} Qc5 {
>[69,15] [0:04:56]} 44. h3 {[0:09:18]} Kh7 {
>[59,15] [0:00:00]} 45. Rd3 {[0:02:23]} Kg8 {
>[77,15] [0:03:23]} 46. Nc3 {(T1d2) [0:00:00]} Nc6 {
>[48,15] [0:04:06]} 47. e5 {[0:04:15]} d5 {
>[58,15] [0:00:00]} 48. cxd5 {[0:03:46]} Nb4 {
>[51,16] [0:03:15]} 49. Ne4 {[0:00:57]} Qf8 {
>[54,15] [0:02:07]} 50. d6 {(Td4) [0:06:12]} Nxd3 {
>[33,17] [0:05:20]} 51. Qxd3 {(Txd3) [0:04:12]} Rc8 {
>[39,15] [0:03:03]} 52. Kg1 {(g4) [0:01:19]} Rc6 {
>[15,15] [0:02:58]} 53. Nd2 {(g4) [0:02:23]} Qa8 {
>[0,16] [0:05:39]} 54. Nc4 {[0:19:21]} Rc5 {
>[7,17] [0:00:00]} 55. Qe3 {[0:01:55]} Qc6 {
>[27,15] [0:02:23]} 56. Kh2 {(g4) [0:02:08]} Rd8 {
>[26,14] [0:03:14]} 57. Qf2 {(g4) [0:00:00]} Qb7 {
>[0,15] [0:06:37]} 58. Rd2 {(Tf1) [0:03:18]} Qe4 {
>[0,15] [0:05:19]} 59. Rd4 {(Td1) [0:02:34]} Qc6 {
>[0,16] [0:02:32]} 60. Rd3 {(Td2) [0:02:38]} Qb7 {
>[0,16] [0:14:36]} 61. Qe3 {(Td2) [0:02:01]} Rb8 {
>[20,15] [0:05:26]} 62. Rd2 {(g4) [0:05:39]} Rd5 {
>[0,15] [0:02:06]}

I took a look at this game, and it seems to hinge entirely on this blunder at
move 63.

[D]1r4k1/1q3pp1/1p1Pp2p/p2rP3/P1N2P2/1P2Q1PP/3R3K/8 w - - 0 63

Here Tiger 2004 played the very poor 63.Rc2?? allowing the rook infiltration in
d1 and ultimately causing the loss of the game. I checked Tiger 15 and it never
plays Rc2, which doesn't mean anything per se, but it's worth checking Tiger
2004 to see if it does. I don't have the program so cannot do so myself.

                                             Albert

>63. Rc2 {(Txd5) [0:07:55]} Rd1 {
>[-55,15] [0:02:05]} 64. Rg2 {[0:12:33]} b5 {
>[-51,16] [0:00:00]} 65. Qe2 {(axb5) [0:01:01]} Rd5 {
>[-82,14] [0:02:29]} 66. Nxa5 {[0:00:55]} Qa8 {
>[-155,15] [0:01:22]} 67. b4 {[0:01:14]} bxa4 {
>[-158,15] [0:01:16]} 68. Qe1 {[0:04:24]} Rd3 {
>[-188,15] [0:02:43]} 69. Qb1 {(Sc4) [0:00:49]} Rd4 {
>[-248,14] [0:01:03]} 70. Qc1 {[0:02:05]} Rc8 {
>[-289,15] [0:00:18]} 71. Qe1 {(De3) [0:01:09]} Qd5 {
>[-427,14] [0:00:45]} 72. g4 {(d7) [0:00:53]} Rd3 {
>[-604,12] [0:00:49]} 73. d7 {(Sc4) [0:01:26]} Rcc3 {
>[-913,13] [0:01:00]} 74. Qh4 {[0:00:00]} Qxd7 {
>[-1475,14] [0:02:00]} 75. Nc4 {[0:00:00]} 0-1
>
>Tony



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