Author: Robert Hyatt
Date: 10:19:09 11/03/98
Go up one level in this thread
On November 03, 1998 at 10:01:23, Inmann Werner wrote:
>>
>> IE Crafty finds this at depth=10, about
>>10 seconds or so on my ALR. It's not hard to make it find it at depth=6 or
>>7. But would it play better in games? No... it is *easy* to over-extend and
>>find wonderful tactics but get killed positionally...
>
>Wow!
>How do you come done at this position to depth 10 in 10 seconds? How fast
>is your ALR or is Crafty so fast?
>
>Werner
I search about 350K nodes per sec in this position on the quad processor
pentium pro/200mhz box... fast, but not incredibly fast by any measure...
Just that the extensions are dangerous... and I'm not yet happy with what I
do. IE here is another position that is interesting: win at chess 213. I
ran this on my notebook and got this output, which I consider alarming
in that I don't believe I want to be searching deeply enough to find this
32 ply variation in this time limit, because I am probably searching other
such lines too deeply and wasting lots of time...
14 6:20 6.06 1. Rxh7+ Kxh7 2. Qh5+ Kg8 3. Rxg7+
Kxg7 4. Bh6+ Kh7 5. Bg5+ Kg7 6. Qh6+
Kf7 7. Qf6+ Kg8 8. Qg6+ Kh8 9. Bf6+
Rxf6 10. exf6 Qxe1+ 11. Kxe1 Nxd3+
12. Kf1 Rd7 13. Qe8+ Kh7 14. Qxd7+
Ne7 15. Qxb7 Nc5 16. Qxe7+ Kg6
It's nice to find such stuff, but the question is, "is this reasonable use
of available time?" I'm suspicious it is not...
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