Author: Thomas Mayer
Date: 18:42:07 09/26/01
Go up one level in this thread
Me again... On September 26, 2001 at 21:33:35, Thomas Mayer wrote: >Hi Koundinya, > >[D]6B1/1pp3p1/3p4/n1k2P2/2P3P1/4K3/8/8 b - - 0 40 >>>>>> >>>>>>I think black already lost here, but > >>>>No, after Nc6 result is 0,5-0,5. White cannot make any progres. > >>>Which one avoids it? what is the PV? >>>I tested this with my program and I think that it does not avoids it for the >>>right reason. Is not black winning? >>> >>> 2634164 9 16.4 +1.91 Na5xc4 Bg8xc4 Kc5xc4 g4-g5 >>> Kc4-d5 Ke3-f4 g7-g6 f5xg6 >>> Kd5-e6 Kf4-e4 c7-c6 Ke4-d4 >>> b7-b5 g6-g7 >>> >>>4... g6! is the winning move, otherwise black loses. (5. g6! and 6.f6 is the >>>threat). >>> >>>How is white supposed to play? >>> > >>Analysis with Yace tells me that after 4... g6 5. Kg4! wins for white. If black >>captures 5... gxf5, the white pawn promotes. If it doesn't capture but tries >>something like 5... b5, then 6. fxg6 Ke6 7. Kh5 wins for white. > >hmmmm... Quark thinks now for couple of minutes... > >on ply 17 it has still Nxc4 with +0.19 (okay, has already seen that it is not so >perfect move...) >on ply 18 I have a fail low now on Nxc4, let's see whith what score it will come >out and if it is deep enough that it will try to choose a different move... >(Fail low after about 7 minutes, but that will take some time... all on Athlon >1333 and about 170 MB hash + some 5 men TBs...) > >is falling very low... (I open the window in steps in Quark...) > >it's sure that it will switch to another move, when I see the score, I will >indicate here how long it has taken... after 17:30 minutes it switches to Nc6... well done Quarky Quark... :) Score for Nxc4 was finally -4.26 But I think Crafty will do a faster Job here... Greets, Thomas
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