Author: John Stanback
Date: 12:10:55 02/19/99
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On February 18, 1999 at 19:26:23, Will Singleton wrote: > >On February 18, 1999 at 19:07:04, John Stanback wrote: > >>Here is Zarkov's output (P2-300). It sees that dxe5 is bad >>after 1.4 seconds, but at 23.1 seconds it also finds that Bc1 >>is bad and at 1:52 it changes to Be3 which it thinks is a little >>better. If I play dxe5 and search for a while the score is >>about -1.2 pawns, which is about the same as if I play Be3 and >>search for a while. >> >> >>00:00.6 21829 5> -67 dxe5 a4 Qb4 fxe5 Nh4 exf4 Nxf5 >>00:01.0 38656 5 -65 dxe5 a4 Qb4 fxe5 Nh4 exf4 Nxf5 >>00:01.2 45911 6> -65 dxe5 a4 Qb4 fxe5 Nh4 exf4 Nxf5 >>00:01.4 55680 6 -123 dxe5 a4 Qb4 fxe5 Nh4 exf4 Nxf5 >>00:03.5 129024 6 -75 Bc1 Re6 Rd3 b5 Qa2 Ned6 Rdd1 >>00:04.2 158434 7> -75 Bc1 Re6 Rd3 b5 Qa2 Ned6 Rdd1 >>00:07.8 302208 7 -78 Bc1 Re6 Rd3 b5 Re1 Qd7 a4 >>00:09.8 394195 8> -78 Bc1 Re6 Rd3 b5 Re1 Qd7 a4 >>00:23.1 907520 8 -137 Bc1 Re6 Rd3 b5 Re1 Qd7 a4 >>00:41.1 1657088 8 -131 Nh4 exf4 Nxf5 Ncd2 Rxd2 Nxd2 Qxd5+ Qxd5 Bxd5+ Kh7 >>01:51.7 4453632 8 -117 Be3 exd4 cxd4 Re6 Nh4 Rb6 Qxb6 cxb6 Nxf5 Nxa3 >>01:56.4 4633910 9> -117 Be3 exd4 cxd4 Re6 Nh4 Rb6 Qxb6 cxb6 Nxf5 Nxa3 > > >Hello John, > >I note that your ply 6 pv (for dxe5) is the same for 2 different scores. Do you >truncate it somehow? > >You get about 38k nps, which is similar to Hiarcs on that machine. You also >search over 4 million nodes before finishing with ply 8. Lots of extensions? >Is this the ticket to 2900 ICC? > >Will Hi Will, Zarkov's output is a little confusing. The line with "6>" means that the sixth iteration just started. So the score and PV actually reflect the end of the 5th iteration. The 8th iteration took a lot longer than usual for this position because the score for the first move (Bc1) dropped quite a bit and it spent a lot of time trying to find something better. Zarkov extends on the usual stuff such as checks, pawn to 7th, recaptures, and also has some threat extensions. John
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