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Subject: Re: pawn endgame position

Author: Pete Galati

Date: 14:29:22 01/22/01

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On January 22, 2001 at 09:36:53, Steffen Jakob wrote:

>Hossa played a blitz game with Amateur some minutes ago where he got a won
>endgame position. Both sides had a queen and pawns. Hossa was 3 pawns up. Then
>there was the opportunity to exchange the queens resulting in a pawn endgame
>position where Hossa had 3 connected advanced passed pawns and Amateur had no
>passer at all. You can imagine that Hossa was very happy to exchange in this
>line. Unfortunately the 3 passers werent able to force a promotion without the
>help of their king who was far away. On the other hand black could create a
>passer which could not be stopped by white. So in the end Hossa lost this
>"deadly" won position :-)
>
>I am interested if "your" engine could resist to play 46.Qe6+ in a blitz game.
>
>[D]6k1/2pq4/5Q2/p2PPP2/1p1P4/8/P6P/7K w
>
>Best wishes,
>Steffen.

Fritz5.32 says about the same thing as everyone else, SD 12 in about a minute.
Bob says it's endgame stuff, so I guess any program looking at the endgames will
spit out the same thing?

I passed the position through winboard to get the position into a more std form
of epd to give it a try though Comet, but this is Fritz pasted in below.

Pete

New position
6k1/2pq4/5Q2/p2PPP2/1p1P4/8/P6P/7K w - - 0 1

Analysis by Fritz 5.32:

1.d6
  +-  (2.50)   Depth: 1/5   00:00:00
1.d6
  +-  (2.50)   Depth: 1/9   00:00:00
1.Qe6+
  +-  (2.78)   Depth: 1/9   00:00:00
1.Qg6+
  +-  (3.25)   Depth: 1/9   00:00:00
1.Qg6+ Kf8 2.Qf6+ Ke8
  +-  (3.34)   Depth: 1/9   00:00:00
1.Qg6+ Kf8 2.Qf6+ Ke8
  +-  (3.34)   Depth: 2/8   00:00:00
1.Qg6+ Kf8 2.Qh6+ Kg8 3.Qg5+ Kf8
  +-  (3.22)   Depth: 3/10   00:00:00  1kN
1.Qe6+
  +-  (3.25)   Depth: 3/10   00:00:00  1kN
1.Qe6+ Qxe6
  +-  (3.63)   Depth: 3/10   00:00:00  2kN
1.Qe6+ Qxe6 2.dxe6 Kg7 3.f6+ Kf8
  +-  (3.63)   Depth: 4/10   00:00:00  2kN
1.Qe6+--
  +-  (3.31)   Depth: 5/9   00:00:00  4kN
1.Qe6+ Qxe6 2.fxe6 Kf8 3.d6 cxd6 4.exd6
  +-  (2.91)   Depth: 5/12   00:00:00  5kN
1.Qg6+!
  +-  (2.94)   Depth: 5/14   00:00:00  8kN
1.Qg6+ Kf8 2.Qh6+ Kg8 3.Qh3 a4 4.Qg4+ Kf8
  +-  (3.09)   Depth: 5/14   00:00:00  12kN
1.Qg6+ Kf8 2.Qh6+ Kg8 3.Qh3 Qa4 4.Qg4+ Kf8 5.Qe2
  +-  (3.09)   Depth: 6/20   00:00:00  27kN
1.Qe6+!
  +-  (3.13)   Depth: 6/20   00:00:00  33kN
1.Qe6+! Qxe6 2.dxe6 a4 3.e7 Kf7
  +-  (4.00)   Depth: 6/20   00:00:00  37kN
1.Qe6+ Qxe6 2.dxe6 Kf8 3.Kg2 a4 4.e7+ Ke8 5.Kf3
  +-  (3.97)   Depth: 7/18   00:00:00  51kN
1.Qe6+--
  +-  (3.66)   Depth: 8/14   00:00:00  96kN
1.Qe6+ Qxe6 2.fxe6 Kf8 3.d6 cxd6 4.exd6 a4 5.e7+ Ke8
  +-  (2.72)   Depth: 8/21   00:00:00  111kN
1.Qg6+
  +-  (2.75)   Depth: 8/24   00:00:01  280kN
1.Qg6+ Kf8 2.Qh6+ Kg8 3.Qh3 a4 4.Kg1 b3 5.axb3 a3
  +-  (3.16)   Depth: 8/26   00:00:01  481kN
1.Qg6+ Kf8 2.d6 Qc6+ 3.Kg1 Qc1+ 4.Kg2 Qd2+ 5.Kf3
  +-  (3.03)   Depth: 9/26   00:00:02  1093kN
1.Qg6+ Kf8 2.Qh6+ Kg8 3.Qh8+ Kxh8
  +-  (2.97)   Depth: 10/29   00:00:04  2570kN
1.Qg6+--
  +-  (2.66)   Depth: 11/30   00:00:10  6511kN
1.Qg6+ Kf8 2.Kg2 Qxd5+ 3.Kg3 Qxd4 4.Qf6+ Kg8 5.Qe6+
  +-  (2.53)   Depth: 11/31   00:00:18  12170kN
1.Qg6+ Kf8 2.Qh6+ Kg8 3.Qh8+ Kxh8
  +-  (2.50)   Depth: 12/33   00:00:38  26523kN
1.Kg1
  +-  (2.53)   Depth: 12/33   00:00:57  40979kN
1.Kg1 Qxd5 2.e6 Qg2+ 3.Kxg2
  +-  (2.59)   Depth: 12/33   00:01:00  42937kN
1.e6
  +-  (2.63)   Depth: 12/33   00:01:12  51436kN
1.e6 Qxd5+ 2.Kg1 Qe4 3.Qd8+ Kg7 4.Qxc7+ Kh6 5.Qe5 Qb1+
  +-  (3.19)   Depth: 12/34   00:01:35  68458kN
1.e6!
  +-  (3.50)   Depth: 13/35   00:02:02  89226kN
1.e6 Qxd5+ 2.Kg1 Qe4 3.Qd8+ Kg7 4.Qxc7+ Kg8 5.Qf7+ Kh8
  +-  (3.50)   Depth: 14/38   00:05:13  235719kN
1.e6 Qxd5+ 2.Kg1 Qe4 3.Qd8+ Kg7 4.Qxc7+ Kg8 5.Qg3+ Kf8
  +-  (3.66)   Depth: 15/38   00:13:27  618953kN

(Galati, ` 22.01.2001)



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