Author: Christoph Fieberg
Date: 11:21:30 08/17/00
Go up one level in this thread
On August 17, 2000 at 13:52:51, Uri Blass wrote: >On August 16, 2000 at 06:40:10, Christoph Fieberg wrote: > >>>>>1.Lxd2 Sf6+ 2.gxh8S Txh8+ 3.Th7 fxg1D 4.c8D exd1D 5.bxa8D >> >>>>I think that this line is not a draw. >> >>>>White wins by 5.d8Q+(possible lines 5...Kg3 6.Qd6+ Kf2 7.Qd4+ Kf1 8.Qcc4+ Qe2 >>>>9.Qxe2+ Kxe2 10.Nxg1+ hxg1 11.Qxg1 or 5...Rxc8 6.bxc8Q+ Kg3 7.Qd6+ Kf2 8.Qcc5+) >>>> >>>>Uri >> >>I agree that after 4.c8D exd1D 5.d8Q+! (instead of 5.bxa8Q) White will win. >> >>But what about the preventive 4....Kg3 (instead of exd1D). Is this also a forced >>win for White? At the moment I analyse it with Fritz6 (will take some time). >> >>Regards, >>Christoph > >I did not analyze the position but only gave it to Junior5.9. > >after 4...Kg3 Junior5.9 fails high on the move Rxh8 > >evaluation at depth 13(after the typical 0.3 addition for fail high moves) is >1.03 pawns for white. > >I used pentium200MMX for 2 hours to get the evaluation(my pentiumIII450 is busy >in another task). > >Uri Hi Uri, I agree that 4...Kg3 is not sufficient - but in the meantime I found a line after 1... Ng5+!! which seems to be a forced win for Black! Check this: 1.... Ng5+!! 2.gxh8Q Rxh8+ 3.Rh7 fxg1Q! 4.e8Q Rxh7+ 5.gxh7 h1Q 6.Bxc2 Kg3+ 7.Kxg5 Qc5+ 8.Qe5+ Qxe5+ 9.Nxe5 Qh4+ 10.Kg6 b1Q 11.c8Q Qb6+ 12.Qc6 Qg4+ 13.Kh6 a1Q 14.Rxa1 Rxa1 -+ [D]8/1P1P3P/1qQ4K/4N3/6q1/6k1/2BBp1n1/r7 w - - 0 15 Regards, Christoph
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