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Subject: Re: Two easy mates.

Author: Paul

Date: 10:56:03 11/04/01

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On November 04, 2001 at 13:49:47, leonid wrote:

>On November 04, 2001 at 11:43:10, Paul wrote:
>
>>On November 04, 2001 at 10:45:12, leonid wrote:
>>
>>>On November 04, 2001 at 08:59:37, Paul wrote:
>>>
>>>>On November 04, 2001 at 07:54:58, leonid wrote:
>>>>
>>>>>Hello!
>>>>
>>>>Hi ... Pretz's first thoughts on a p3/1000 ...
>>>>
>>>>>This one is easy:
>>>>>
>>>>>[D]Q7/3qq3/2qQqk2/1nQRNqq1/nBKRRNq1/PrbBQq2/1PrPq3/2Bb4 w - -
>>>>
>>>>00:05 WM9 07 Qh8+ Qgg7 Nxd7+ Qcxd7 Nh5+ Qfxh5 Rxe6+ Qgxe6 Qef4+ Qxf4 Rxf4+ Qf5
>>>>Rxf5+ Kg6 Qg1+ Qg5 Qxg5#
>>>>
>>>>>But if you want to solve something that is not difficult, almost the same but
>>>>>demand more thinking, then try this:
>>>>>
>>>>>[D]Q7/3qq3/2qNqk2/1nNRNqq1/nPKPRNq1/PrbBQq2/1PrQq3/2Bb4 w - -
>>>>
>>>>00:35 WM13 09 Qh8+ Qeg7 Nxd7+ Qexd7 Nh5+ Q5xh5 Rxf5+ Qfxf5 Qeh6+ Qhg6 Q6xg7+
>>>>Qgxg7 Qdh6+ Qfg6 Rf4+ Qxf4 Qxg6+ Ke7 Qgxg7+ Qf7+ Qxf7+ Kxd6 Qf4+ Ke7 Qhf8#
>>>>
>>>>Not sure of course whether these are the shortest possible mates ...
>>>>
>>>>>Please indicate your result.
>>>
>>>Hi, Paul!
>>>
>>>Now you reached me for sure. On first and second position, your time is better
>>>that mine. First took 9 second for selective search 9 moves deep, and second 62
>>>sec for selective in 13 moves. Both solutions are the shortest possible. I
>>>solved both by brute force. Branching factor is very mild for both of them.
>>>
>>>Cheers,
>>>Leonid.
>>
>>This is just a coincidence, my friend ... you happened to pick positions that
>>are a bit harder for your program. Remember, you are in control! ;)
>>
>>It's kind of funny because I used my old & trusty "Leonid settings" and didn't
>>try my new ones that are still not reliable enough. The second position is quite
>>a bit faster with the new settings: 22 seconds. Haha!
>
>Good advance that put me at real rush. Exactly today started writing some code
>that, presumably, could slightly speed my mate search. At least around 10% of
>moves look like be responsive. I hope to finalize writing before the end of next
>week. Was lucky to meet new competition to make me wake up.
>
>Cheers to Champion!
>Leonid.

Thanks, but you give me too much credit! I've been faster than you in less than
1 percent of your positions, soo ... please don't rush to make yours better! ;)

But if you mean that you want some more champagne from me, that's ok! Hoho! :)

Have a nice sunday afternoon (it's pretty dark here already),
Paul



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