Author: Torsten Schoop
Date: 14:15:16 01/03/98
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On January 02, 1998 at 16:50:29, Amir Ban wrote: > >The first game Comet - Junior in CSCC has a challenging position for >computers, fit for some test-suite material. > >On the 43rd move, black is an exchange up, and can win another piece to >be a rook up, but this loses. > >Black manages to avoid Rxd3 on the 45th move, but plays it on the 47th >move. Which program manages not to play Rxd3 both times ? Hi all, I have analysed 47th move (on P-120, 24 MB). Junior 4.6 shows a very strange behaviour: Time Depth Move Score 00:01 9 Rxd3 +1.93 00.07 9 Qd4+ +1.96 (PV: Qd4+ 48. Kg2 Rxd3) 00:17 12 Qd4+ +2.09 00:22 12 Rxd3 +2.10 01:33 14 Rxd3 0.00 (PV: Rxd3 48. Rxd3 Qxd3 49. Qxd3 Rxd3 50. c7 Rd1+ 51. Kg2 Rc1 52. b6 g5 53. b7 Rc2+ 54. Kh1 Rc1+) 20:12 14 h4 +0.58 To comparison: Rebel 9: Time Depth Move Score 00:03 7 Rxd3 +2.55 00:09 8 Rxd3 +2.61 00:22 9 Rxd3 +2.65 01:13 10 Rxd3 +1.26 08:50 10 Ra2 +1.86 Fritz 5 Time Depth Move Score 00:01 7/16 Rxd3 +2.74 00:07 10/23 Rxd3 +2.59 00:20 11/25 Rxd3 +1.63 01:57 11/31 Ra2 +1.66 Hiarcs 6 Time Depth Move Score 00:02 5/19 Rxd3 +2.15 00:09 6/21 Rxd3 0.00 00:39 7/23 Ra2 +1.65 Well done, Bob! Crafty seems to be top in this position. Ciao Torsten
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