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Subject: Re: How Many Programmes Avoid Qxe7+?? Quickly? Chess Tiger Is The Fastest

Author: Terry McCracken

Date: 07:14:27 11/25/02

Go up one level in this thread


On November 25, 2002 at 00:29:56, John Merlino wrote:

>On November 24, 2002 at 23:56:30, Terry McCracken wrote:
>
>>[D]8/4p3/4Q3/8/8/k1p3PP/1q3P1K/8 w - - 0 1
>>
>>This is reposted as it was given little attention.
>>
>>
>>http://www.talkchess.com/forums/1/message.html?266990
>
>Chessmaster 9000, on a P3-733, gives up on Qxe7+ in two seconds:
>
>Time	Depth	Score	Positions	Moves
>0:00	1/3	0.20	5091		1.Qxe7+ Ka2 2.Qe6+ Kb1 3.Qf6
>0:00	1/4	0.20	10263		1.Qxe7+ Ka2 2.Qe6+ Kb1 3.Qe1+ Qc1
>					4.Qe5
>0:00	1/5	0.18	25204		1.Qxe7+ Ka2 2.Qe6+ Kb1 3.Qe1+ Ka2
>					4.h4 c2 5.Qe6+ Kb1
>0:00	1/6	0.00	64218		1.Qxe7+ Ka2 2.Qe6+ Kb1 3.Qe1+ Ka2
>					4.Qe6+
>0:02	1/7	-0.18	154813		1.Qxe7+ Ka2 2.Qe6+ Qb3 3.Qa6+ Kb1
>					4.h4 c2 5.Qg6 Qc3 6.f4
>0:02	1/7	0.00	206769		1.Qa6+ Kb4 2.Qb7+ Kc4 3.Qe4+ Kb3
>					4.Qe6+ Ka4 5.Qc6+ Kb3 6.Qe6+
>0:03	2/8	0.00	296235		1.Qa6+ Kb4 2.Qb7+ Kc4 3.Qe4+ Kb3
>					4.Qe6+ Ka4 5.Qc6+ Kb3 6.Qe6+
>0:07	3/9	0.00	624641		1.Qa6+ Kb4 2.Qb7+ Kc4 3.Qe4+ Kb3
>					4.Qe6+ Ka4 5.Qc6+ Kb3 6.Qe6+
>
>jm

Yes, the only way to draw is Qa6+!! CM 9000 is Stong!


1. Qxe7+ Ka2 2. Qe6+ Kb1 3. Qe4+ c2 is dead lost for White!

1. Qxe7+ Ka2 2. Qe6+
( 2. Qa7+)
2... Kb1 3. Qe4+
( 3. Qe1+ Qc1 )
3... c2 4. Qe1+

Terry



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