Author: Thomas Mayer
Date: 18:54:46 09/26/01
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>>[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... after 24:43 Quark has the final score for Nc6... 0.00 Greets, Thomas
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