Author: Gerd Isenberg
Date: 03:03:22 09/21/02
Go up one level in this thread
On September 21, 2002 at 05:15:37, Tony Werten wrote: >On September 21, 2002 at 05:14:20, Tony Werten wrote: > >>On September 21, 2002 at 05:11:37, Tony Werten wrote: >> >>>On September 20, 2002 at 18:25:20, Dann Corbit wrote: >>> >>>>On September 20, 2002 at 18:03:55, Tony Werten wrote: >>>> >>>>>On September 20, 2002 at 05:15:45, Gian-Carlo Pascutto wrote: >>>>> >>>>>>[D]2b1q3/p7/1p1p2kb/nPpN3p/P1P1P2P/6P1/5R1K/5Q2 w - - 0 1 >>>>>> >>>>>>Isn't Rf6+ an alternate solution to e5? >>>>> >>>>>I think it is. I spoke with several other programmer about this position. Most >>>>>seem to play Rf6. Both seem to be good ( +1.5 ) >>>> >>>>It looks to me like a simple transposition. >>>>The programs that play Rf6 will play e5 in a few plies, and end up at the same >>>>position. >>> >>>Could be. I'm not sure though. It would explain why most programs choose Rf6 >>>since this gets an extension in most programs and e5 appears to be loosing a >>>pawn. Later they get the same score so e5 will never replace Rf6. >>> >>>BTW Are there any programs that solve this one ? ( Don't mean matesolvers ) >>> >> > >[D]rnb1k1nr/p2p1ppp/3B4/1p1N1N1P/4P1P1/3P1Q2/PqP5/R4Kb1 w kq - 0 1 > >> >>>Tony Aha, BT2630 Position 27 and 28 (from Anderssen-Kieseritzky 1851, "die Unsterbliche"). IsiChess (XP2.1) has no clue of e5 in 15 miutes. It wants to play Qd1 (after 10 seconds) with -0.22 after 1:49 and +0.01 after 6 minutes. PV: 1.Qd1 Na6 2.Kxg1 g6 3.Rb1 Qxa2 4.Ra1 Qb2 5.Ba3 Qxa3 5.Rxa3 gxf5 After 17:53 Rae1! with 21++ hmmm... Cheers, Gerd
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.