Author: John Merlino
Date: 15:13:02 04/24/02
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On April 24, 2002 at 16:57:37, Roy Eassa wrote: >On April 24, 2002 at 15:02:57, John Merlino wrote: > >>I agree with everything, except that you probably cannot expect a prog to find >>this triple-underpromotion line, because Black has a better response than the >>one that will force White to follow it. >> > > >I see your point! In fact, now I can't believe I missed it before. I was so >interested in this as a great puzzle for humans, I forgot that computers will >not show the whole same beautiful PV all the way. The most amusing thing is that, if you combine the two CM PVs (from the initial position, and then assuming 8...Be5), you get FOUR promotions, one for each piece! 1.Ne4+ Kd3 2.Nc5+ Kc3 3.Nb3 Be5 4.f4 Bf6 5.e8=N Bh8 6.f5 Be5 7.Bh2 Bxh2 8.Nf6 Be5 9.b8=B Bxb8 10.Nc7 Bxc7 11.e7 Be5 12.e8=R Bg7 13.Re6 Bf8 14.Rc6+ Kd3 15.Kb2 Ke4 16.f6 Ke5 17.f7 c1=Q+ 18.Rxc1 jm
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