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Subject: Re: Test position

Author: scott farrell

Date: 18:06:48 12/14/03

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On December 14, 2003 at 18:17:52, Matthew McKnight wrote:

>[D]1r3rk1/p2n4/1p5p/4qbN1/P2p4/3P3P/1PP3B1/R1Q2R1K b - - 0 26
>

here is chompsters analysis:

->1/2(6)  1.26  0.275secs  110  PxN
->2/3(7)  1.14  0.405secs  766  PxN QxG5+ KH8
->3/12(8)  0.01  0.698secs  8872  RE8 NE4 QG7
->4/12(9)  0.16  0.895secs  32433  RE8 NE4 QE6 QF4
->5/13(13)  -0.33  1.526secs  126444  RE8 BE4 BxB+ NxB

After that it fools around failing low on a few different moves, but never looks
at PxN again after ply 2.

Scott

>1r3rk1/p2n4/1p5p/4qbN1/P2p4/3P3P/1PP3B1/R1Q2R1K b - - 0 26
>Taken from Hossa - Dorky on ICC
>
>Dorky will see that taking the pawn is bad, but not in time for this blitz game.
> I'm going to have to investigate because after making hxg5 and letting Dorky
>analyze, he sees very quickly that Qxg5 is strong.  Just curious to see how
>everyone else's favorite engine does here.  Depth 11 explodes and takes Dorky
>forever, I might have a bug here.
>
>Dorky 4.0beta
>
>Ply    Time     Nodes   Score   PV
> 6.    0.20     121980  +1.34   26. ... hxg5 27. Qxg5+ Kh8 28. Rae1 Qc5 29. Re7
>Rbc8 30. <HT>
>
> 7     0.28     171715  +1.39   26. ... hxg5 27. Qxg5+ Kh8 28. Rae1 Qf6 29. Qh5+
>Kg7 30. Bd5 Rbc8 31. <HT>
>
> 7.    0.51     319987  +1.39   26. ... hxg5 27. Qxg5+ Kh8 28. Rae1 Qf6 29. Qh5+
>Kg7 30. Bd5 Rbc8 31. <HT>
>
> 8     1.28     769944  +1.39   26. ... hxg5 27. Qxg5+ <HT>
>
> 8     1.46     884496  +0.99   26. ... hxg5 27. Qxg5+ Kh8 28. Rae1 Qf6 29. Qh5+
>Kg8 30. Bd5+ Kg7 31. Rg1+ Bg6 32. Rg3 <HT>
>
> 8.    1.46     884540  +0.99   26. ... hxg5 27. Qxg5+ Kh8 28. Rae1 Qf6 29. Qh5+
>Kg8 30. Bd5+ Kg7 31. Rg1+ Bg6 32. Rg3 <HT>
>
> 9     2.15    1308941  +0.60   26. ... hxg5 27. Qxg5+ Kh8 28. Rae1 Qf6 29. Qh5+
>Kg7 30. Rxf5 Qxf5 31. Re7+ Kf6 32. Qxf5+ Kxf5 33. Rxd7 <HT>
>
> 9.    5.34    3146962  +0.60   26. ... hxg5 27. Qxg5+ Kh8 28. Rae1 Qf6 29. Qh5+
>Kg7 30. Rxf5 Qxf5 31. Re7+ Kf6 32. Qxf5+ Kxf5 33. Rxd7 <HT>
>
>10     6.81    4029451  +0.47   26. ... hxg5 27. Qxg5+ Kh8 28. Qh4+ Bh7 29. Be4
>Qg7 30. Bxh7 Qxh7 31. Qxd4+ Qg7 32. Qxg7+ Kxg7 33. Rae1
>
>10.   16.76    9626000  +0.47   26. ... hxg5 27. Qxg5+ Kh8 28. Qh4+ Bh7 29. Be4
>Qg7 30. Bxh7 Qxh7 31. Qxd4+ Qg7 32. Qxg7+ Kxg7 33. Rae1
>
>11    83.92   45754598  +0.47   26. ... hxg5 27. Qxg5+ <HT>
>
>11    98.17   53381052  -2.89   26. ... hxg5 27. Qxg5+ Kh8 28. Qh4+ Bh7 29. Be4
>Rxf1+ 30. Rxf1 Qg7 31. Bxh7 Qxh7 32. Qxh7+ Kxh7 33. <HT>



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