Author: Terry McCracken
Date: 00:28:12 10/31/01
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On October 30, 2001 at 19:49:30, John Merlino wrote: >On October 30, 2001 at 18:24:41, Terry McCracken wrote: > >>[D]r5k1/ppp2r1p/3p3b/3Pn3/1n2PPp1/1P2K1P1/PBB1N2q/R2Q3R B >> >> >>How do your programmes evaluate this position? >>Do they find forced mate? >> >>Terry > >CM8000 does not find the mate in under 10 minutes on my PIII-600. It sees: > >1...Rxf4 2.Rxh2 Rf3+ 3.Kd4 c5+ 4.dxc6ep b5 5.Bd3 Nexc6+ 6.Kc3 Bg7+ 7.Kd2 Rxd3+ >8.Ke1 > >with an eval of -1.79. Is this the right line, and CM just hasn't seen far >enough yet? Is there really a forced mate? > Yes it is! Fritz with help finds a mate in 14, it was shorter in the actual game. I did this quickly so a shorter mate may exist? 1...Rf4! 2.Rxh2..Rf3+ 3.Kd4..Bg7!!4.Rxh7..Rxh7 5.Ng1..c5+ 6.dxc ep. ..Nbc6+ 7.Kd5..Nb4+ 8.Kd4..Ned3+ 9.e5..Bxe5+ 10.Kc4..Rc8+ 11.Kb5..Rc5+ 12.Ka4..Nxb2+ 13.Kxb4..Bc3# >jm But mate it is! Terry
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