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Subject: is this considered a 'positional' sacrifice...

Author: Dan Ellwein

Date: 07:10:13 01/12/00

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On January 11, 2000 at 21:28:27, Dan Ellwein wrote:

>[Event ""]
>[Site ""]
>[Date "1-11-2000"]
>[Round ""]
>[White "Josh - Age 12#0"]--- Strength=100
>[Black "PotLuck"]
>[Result "0-1"]
>
>Time Control:  45 minutes / game
>
PotLuck settings are:
>
>Max Search Depth    Max
>Selective Search      6
>Contempt for Draw     0.0
>
>Transposition table [checked]
>Deep Thinking       [checked]
>
>Material/Position    20
>Control of Center   120
>Mobility            100
>King Safety         120
>Passed Pawns        120
>Pawn Weakness       100
>
>Own Queen             8.1
>Opposing Queen        8.1
>
>Own Rook              4.6
>Opposing Rook         4.6
>
>Own Bishop            3.4
>Opposing Bishop       3.4
>
>Own Knight            3.4
>Opposing Knight       3.4
>
>Own Pawn              1.2
>Opposing Pawn         1.2
>
>Opening Book - KarpovA
>
>1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Nc5 e5 6. Be3 Bxc5 7. dxc5
>Nd7 8. Nf3 Ngf6 9. Bd3 Bxd3 10. cxd3 O-O 11. O-O Nd5 12. Rc1 Qa5 13. Qc2
>Qxa2 14. Bd2 N5f6 15. Rfe1 Rfe8 16. Bc3 Qd5 17. b4 Nh5 18. Bd2 Rad8 19.
>Bg5 Nhf6 20. Ra1 a6 21. Bh4 Qe6 22. d4 e4 23. Nd2 Qd5 24. Nc4 Ra8 25.
>Bg3 a5 26. Rxa5 Rxa5 27. bxa5 Qxd4 28. Nd6...
>
>[D] 4r1k1/1p1n1ppp/2pN1n2/P1P5/3qp3/6B1/2Q2PPP/4R1K1 b - - 0 36
>
>28. ...Nxc5!

29. Nxe8 Nxe8 30. Rd1>Qb4 31. f3 Qxa5 32. fxe4 Ne6 33. Rb1 Qa6 34. Qf2 b5 35.
Be5 c5 36. Rf1>Qa7 37. Ra1 Qb7 38. Qc2 c4 39. Rd1 Qc6 40. Kf1 b4 41. Qb1 b3 42.
h3 Nc5>43. Rd5 h6 44. Bd4 Nd3 45. Qa1 f6 46. Bc3 Nd6 47. Qa7 Nxe4 48. Rd7 Ng3+
>49. Kg1 Qc5+ 50. Qxc5 Nxc5 51. Re7 Na4 52. Bd4 Nf5 53. Re8+ Kf7 54. Rc8
>Nxd4 55. Rxc4 b2 56. Rb4 Ne2+ 57. Kf2 Nec3 58. g4 Nc5 59. Rxb2 Nd1+ 60.
>Kf3 Nxb2 61. Ke3 g6 62. h4 Nbd3 63. Kd4 f5 64. gxf5 gxf5 65. Ke3 Kg6 66.
>Kf3 Kh5 67. Ke2 Kxh4 68. Kf3 Kh3 69. Ke3 f4+ 70. Ke2 Kg2 71. Kd2 f3 72.
>Kc3 f2 73. Kc4 f1=Q 74. Kb5 Qf7 75. Kc6 Qb7+ 76. Kd6 Qd7# 0-1



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