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Subject: Re: Test position:Colle-O´Hanlon;Nice,1930 [13...Kg6 or 13...Kg8]

Author: Ernst Walet

Date: 10:14:53 03/14/00

Go up one level in this thread


On March 13, 2000 at 20:50:35, Dann Corbit wrote:

>This is actually a *very* interesting test position.
>
>Kg8 seems to score very well initially, but rapidly drops in value.
>By ply 11, Kg6 goes nuts with a fail high.
>
>I wonder if any programs can see Kg6 before ply 11 because of extensions or
>whatever.
>
>Indeed, a clever test position.

Watch Hiarcs 7.32, finds it at ply 5 in 1 second!

New position
r1bqr3/pp1n1ppk/3bp3/6N1/3p4/2P5/PP3PPP/R1BQR1K1 b - - 0 1

Analysis by Hiarcs 7.32:

1...Kg8 2.Qxd4
  -+  (-2.48)   Depth: 1   00:00:00
1...Kg8 2.Qxd4
  -+  (-2.48)   Depth: 2/9   00:00:00
1...Kg8 2.Qh5
  -+  (-2.78)   Depth: 3/14   00:00:00
1...Kg8 2.Qxd4 Qc7
  -+  (-2.84)   Depth: 3/14   00:00:00
1...Kg8 2.Qxd4
  -+  (-2.55)   Depth: 4/14   00:00:00
1...Kg8 2.Qxd4 Qc7 3.f4
  -+  (-2.34)   Depth: 4/14   00:00:00
1...Kg8 2.Qh5
  -+  (-2.05)   Depth: 5/17   00:00:00  9kN
1...Kg8 2.Qh5 Qf6 3.Qh7+ Kf8 4.Ne4 Qe5 5.Bg5
  -+  (-1.98)   Depth: 5/21   00:00:01  34kN
1...Kg6 2.Ne4 Bc7 3.Qg4+ Kh7 4.cxd4
  -+  (-2.05)   Depth: 5/21   00:00:01  57kN
1...Kg6 2.Qxd4
  -+  (-1.80)   Depth: 6/21   00:00:02  85kN
1...Kg6 2.Qxd4 Bc7 3.Nf3 Nf6 4.Qc5
  -+  (-1.65)   Depth: 6/23   00:00:03  151kN
1...Kg6 2.h4 Qa5 3.Qxd4 Be5 4.h5+ Kxh5 5.Qd3
  -+  (-1.52)   Depth: 7/23   00:00:18  676kN
1...Kg6 2.h4
  µ  (-1.27)   Depth: 8/25   00:00:27  1040kN
1...Kg6 2.h4 f5 3.h5+ Kf6 4.Qxd4+ Be5 5.Qh4 Ke7 6.Qb4+ Kf6 7.Qh4
  =  (0.00)   Depth: 8/27   00:01:28  3668kN

Ernst.



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