Author: Will Singleton
Date: 01:48:28 03/01/99
u2600 Position of the Week
--------------------------
5R2/8/8/4rp2/3r4/5k2/2B1p2P/2K1R3 w - -
ArasanX Amateur, 0-1, 1999.02.27, fics
In this position, White played 78. Rg8 and lost. Could your
program avoid that move within 10 seconds or so? The game might be
lost in any event (not sure); there is still some play left.
Note the wide difference between Amateur and MacChess in their analyses.
MacChess takes only 3 seconds to discard Rg8, running at over 300k nps.
Amateur, otoh, takes 43 seconds to realize what's happening (both at ply 9).
(The follow-on position is also worth a look. Does your prog play 78... Kf2
quickly?)
Amateur 0.92, Macintosh g3/300 --
ply score time nodes n/s pv
2 320 0.01 898 53880
3 -64 0.04 1253 18780 Bxf5 Kf2 Rh1 Qe1 Rxe1 Kxe1
3 98 0.05 2138 25620 Kb2 Rb4 Bb3 Kf2
3 99 0.05 2402 28800 Kb1 Kf2 Rf1
3 100 0.05 2561 30720 h3 Kf2 Rf1
3 101 0.06 3072 30720 Rxf5 Rxf5
4 -88 0.08 4479 33540 Rxf5 Rxf5 Bxf5 Kf2 Rh1 Qe1 Rxe1 Kxe1
4 -85 0.10 7788 46680 Bxf5 Rf4 Rxe2 Rxe2
4 99 0.18 16876 56220 Kb2 Kf2 Kc3 Rh4
5 94 0.25 26428 63420 Kb2 Kf2 Kc3 Rh4 Kd2
5 100 0.30 35312 70620 Rg8 Ra5 Rg7 Ra1 Bb1 Rxb1
6 93 1.00 82818 82800 Rg8 Kf2 Rg1 Rh4 Rh1 Rxh2
7 84 2.46 254747 92040 Rg8 Rh4 Rg1 Rc5
8 3 9.42 934686 96300 Rg8 Rh4 Rg1 Rxh2 Rg5
9 -210 43.51 4119536 93900 Rg8 Kf2 Rg1 Rc5 h4 Rc4 Rxe2 Kxg1 h5 f4
9 -90 173.30 15411507 88800 Kb2 Kf2 Rxf5 Rxf5 Rxe2 Kxe2 Bxf5 Ke3
Kc3 Rh4 h3 Rh6
9 -88 193.53 17222900 88800 Rxf5 Rxf5 Bxf5 Kf2 Rh1 Kg2 Re1 Kf2 Rh1
Qe1 Rxe1 Kxe1
MacChess 4.0, Macintosh g3/300 --
02/01|00:00:00| 192| +269| Bxf5 Kf4
03/01|00:00:00| 3294| -79| Bxf5 Kf2 Rxe2+ Rxe2
03/04|00:00:00| 4693| -73| h3 Kf2 Rxe2+ Rxe2 Bxf5
03/11|00:00:00| 6764| +95| Kb2 Rb4+ Kc3 Rbb5
04/01|00:00:00| 10761| +96| Kb2 Kf2 Kc3 Rdd5
05/01|00:00:00| 19781| -80| Kb2 Kf2 Rxf5+ Rxf5 Rxe2+ Kxe2 Bxf5
05/02|00:00:00| 21758| -76| Rxf5+ Rxf5 Bxf5 Kf2 Rxe2+ Kxe2 h3 Kf3
05/04|00:00:00| 25407| -74| h3 Kf2 Rxe2+ Rxe2 Bxf5 Kg3
05/11|00:00:00| 32001| -72| Bxf5 Kf2 Rxe2+ Kxe2 h3 Kf3
05/20|00:00:00| 66502| +87| Rg8 Rc4 Kd2 Rd4+ Kc3 Rdd5
06/01|00:00:00| 86325| -66| Rg8 Kf2 Rgg1 f4 h3 f3 Rh1
07/01|00:00:00| 239157| -32| Rg8 Rh4 h3 Kf2 Rgg1 Rxh3 Bb1
08/01|00:00:02| 667258| -66| Rg8 Kf2 Rgg1 f4 h3 f3 Rh1 Rc4 Kd2
09/01|00:00:03| 1073439| -188| Rg8 Kf2 Rgg1 Rc5 h4 Rdc4 Kb1 Rxc2 h5
09/02|00:00:03| 1329074| -84| Rxf5+ Rxf5 Bxf5 Kf2 Rxe2+ Kxe2 h3 Rd1+ Kc2 Rd2+
Kc1 Ke3 Be4 Rh2
10/01|00:00:08| 2854279| -85| Rxf5+ Rxf5 Bxf5 Kf2 Rxe2+ Kxe2 h3 Rd1+ Kc2 Rd2+
Kc1 Ke3 Be4 Rh2 Bf5
[Event "fics rated blitz game"]
[Site "fics, Oklahoma City, OK USA"]
[Date "1999.02.27"]
[Time "16:26:32"]
[Round "-"]
[White "ArasanX"]
[Black "Amateur"]
[WhiteElo "2196"]
[BlackElo "2127"]
[TimeControl "300+4"]
[Mode "ICS"]
[Result "0-1"]
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2
a6 8. O-O-O h6 9. Be3 Bd7 10. f3 b5 11. Nxc6 Bxc6 12. Qf2 Qc7 13. Bd3
Be7 14. Qg3 g6 15. Qh3 b4 16. Ne2 b3 17. axb3 Qa5 18. Kb1 h5 19. Bd2 Qc5
20. b4 Qb6 21. g4 Rf8 22. gxh5 Nxh5 23. c4 Ba4 24. Rdg1 Bf6 25. f4 Qb7
26. Bc3 Bxc3 27. bxc3 Nf6 28. Qe3 Bc6 29. Ng3 Nd7 30. Qd4 Ke7 31. Be2 Qb6
32. Rd1 Qxd4 33. Rxd4 Rfb8 34. Rhd1 Ba4 35. R1d2 Rb6 36. Ra2 Bc6 37. Kc1
Rh8 38. Rad2 Ba4 39. Bd1 e5 40. fxe5 dxe5 41. Rd5 Bc6 42. Ra5 Rh4 43. c5
Rb7 44. Rxa6 Nb8 45. Ra5 Bxe4 46. b5 f5 47. Nxe4 Rxe4 48. c6 Rc7 49. Ra8
Nxc6 50. Rg8 Nd8 51. Rgxd8 Rxc3+ 52. Bc2 Rb4 53. R2d7+ Kf6 54. Rd6+ Kg5
55. Rg8 Rxb5 56. Rdxg6+ Kf4 57. Rg3 Rbc5 58. Rg2 e4 59. Rf2+ Rf3 60. Rfg2
Rfc3 61. Kb2 Rh3 62. Rf2+ Rf3 63. Rfg2 Rh3 64. R8g5 Rb5+ 65. Kc1 Re5 66.
Rg7 e3 67. Bd1 Rh6 68. Rc7 Re4 69. Be2 Ree6 70. Rc4+ Re4 71. Rc3 Rh4 72.
Rc8 Rh6 73. Bd3 Rd4 74. Bc2 Re6 75. Rf8 Re5 76. Rg1 e2 77. Re1 Kf3 78.
Rg8 Kf2 79. Rxe2+ Kxe2 80. Rg5 Rc4 81. Rg2+ Kf1 82. Rd2 Rh4 83. Rd1+ Kg2
84. Rd2+ Kg1 85. Rd1+ Kxh2 86. Rd2+ Kg3 87. Rd3+ Kf4 88. Rd4+ Kg5 89. Rd2
f4 90. Rg2+ Rg4 91. Rf2 Rg3 92. Kd2 f3 93. Kd3 Kf4 94. Rf1 f2+ 95. Kc4
{White resigned} 0-1
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