Sure.
One of the world's best chess problem solvers.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
Hi Marek
Thank you for your great job !
I cannot solve now this problem with Sting 11.2.
I let run my Core I7 12h.
Perhaps I need more times or bug in my computer ?
[d]8/p6p/4P2p/p3K1pP/pPk5/p2r2p1/P5R1/8 w - - 0 1
fishpov wrote: ↑Mon Dec 10, 2018 6:56 pm
[d]8/p6p/4P2p/p3K1pP/pPk5/p2r2p1/P5R1/8 w - - 0 1
I guess you know the solution, if really not, I'll give it, but maybe some others want to puzzle before too.
As much as that: it was in CCC already at least once, yet fen- search didn't find it just now, YACPD neither, the theme is Cyclic Zugzwang, so nothing for engines without Forward- Backward, as said, I'm sure, you know that all anyhow.
And I hope, you'll give the author too, when showing the solution.
fishpov wrote: ↑Mon Dec 10, 2018 6:56 pm
[d]8/p6p/4P2p/p3K1pP/pPk5/p2r2p1/P5R1/8 w - - 0 1
I guess you know the solution, if really not, I'll give it, but maybe some others want to puzzle before too.
As much as that: it was in CCC already at least once, yet fen- search didn't find it just now, YACPD neither, the theme is Cyclic Zugzwang, so nothing for engines without Forward- Backward, as said, I'm sure, you know that all anyhow.
And I hope, you'll give the author too, when showing the solution.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
fishpov wrote: ↑Mon Dec 10, 2018 6:56 pm
[d]8/p6p/4P2p/p3K1pP/pPk5/p2r2p1/P5R1/8 w - - 0 1
I guess you know the solution, if really not, I'll give it, but maybe some others want to puzzle before too.
As much as that: it was in CCC already at least once, yet fen- search didn't find it just now, YACPD neither, the theme is Cyclic Zugzwang, so nothing for engines without Forward- Backward, as said, I'm sure, you know that all anyhow.
And I hope, you'll give the author too, when showing the solution.
I have an Arves tag for this one in my database, which made it easy to find for me.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
fishpov wrote: ↑Mon Dec 10, 2018 6:56 pm
Hi Marek
Thank you for your great job !
I cannot solve now this problem with Sting 11.2.
I let run my Core I7 12h.
Perhaps I need more times or bug in my computer ?
[d]8/p6p/4P2p/p3K1pP/pPk5/p2r2p1/P5R1/8 w - - 0 1
Sorry, but I have only dual core machine and I can't help you.
Probably it seems to be a problem of time, but I never tried some very strong computer with some bigger hash and I don't know what it can change.
Now, I try "the Kornrade test" (18 is interesting) and I think that I was probably too restrictive again, now in the theme of fortresses.
For this, I prepared next version of Sting (Sting sf 11.3).
download: http://www.mediafire.com/file/wtwl5h2vr ... 3.zip/file
I will be grateful if someone will put a copy where I can get it.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
[d]8/p6p/4P2p/p3K1pP/pPk5/p2r2p1/P5R1/8 w - - 0 1
I only meant that it could be probably a regression.
I had previously tried this position with Sting 7.2 and the solution was found in 7h
With Sting 11.3 this is not found (I have not tried more than 24 hours)
Regards.
