Updates:
1) Sync with latest SF.
2) Move to full hash key.
3) Increase max depth to 250.
4) Improve mate detection.
https://dl.dropboxusercontent.com/u/114 ... eFinder.7z
The archive includes the source and two very basic windows compiles.
New MateFinder Release
Moderators: hgm, Rebel, chrisw
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- Location: Redmond, WA USA
Re: New MateFinder Release
Thank you so much for your efforts.
I practically can't live without the latest matefinder stockfish.
It's the neatest thing since sliced bread.
It's really excellent on general tactical problems, not just checkmates.
I practically can't live without the latest matefinder stockfish.
It's the neatest thing since sliced bread.
It's really excellent on general tactical problems, not just checkmates.
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.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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- Joined: Thu Mar 09, 2006 9:40 am
- Full name: Vincent Lejeune
Re: New MateFinder Release
As analyzing tools, would mind to add 2 patches constantly put back by official SF :jhellis3 wrote:Updates:
1) Sync with latest SF.
2) Move to full hash key.
3) Increase max depth to 250.
4) Improve mate detection.
https://dl.dropboxusercontent.com/u/114 ... eFinder.7z
The archive includes the source and two very basic windows compiles.
1) draw after 3 repetitions (and not 2) : http://tests.stockfishchess.org/tests/v ... 227df1710b
2) bad corner bishop corner for pawn promotion.
Thanks !
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Re: New MateFinder Release
1) I tried this, but it did not appear to actually solve the issue for me (at least in analysis), perhaps it works in actual gameplay?
2) Stockfish has this knowledge already, it is just quite specific, which makes it of limited efficacy. I can try to widen the coverage, but this is often quite hard to do if you are not willing to incorrectly score wins as draws (there is almost always another way to win), but many people are averse to the idea masking engine failings with false evals.
The problem is that if you miss even a single position which is a draw and don't score it as such, then you will not get the correct eval...
If you have the code ready to go though, I am more than happy to implement it.
2) Stockfish has this knowledge already, it is just quite specific, which makes it of limited efficacy. I can try to widen the coverage, but this is often quite hard to do if you are not willing to incorrectly score wins as draws (there is almost always another way to win), but many people are averse to the idea masking engine failings with false evals.
The problem is that if you miss even a single position which is a draw and don't score it as such, then you will not get the correct eval...
If you have the code ready to go though, I am more than happy to implement it.
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- Joined: Thu Mar 09, 2006 6:34 am
- Location: Pen Argyl, Pennsylvania
Re: New MateFinder Release
Compiling on the Mac:jhellis3 wrote:Updates:
1) Sync with latest SF.
2) Move to full hash key.
3) Increase max depth to 250.
4) Improve mate detection.
https://dl.dropboxusercontent.com/u/114 ... eFinder.7z
The archive includes the source and two very basic windows compiles.
Code: Select all
Step 2/4. Running benchmark for pgo-build ...
./matefinder bench 16 1 5000 default time > /dev/null
/bin/sh: line 1: 61046 Segmentation fault: 11 ./matefinder bench 16 1 5000 default time > /dev/null
make: *** [profile-build] Error 139
Code: Select all
Mac-Pro:src michaelbyrne$ ./matefinder
Segmentation fault: 11
Mac-Pro:src michaelbyrne$
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Re: New MateFinder Release
how much elo weaker than normal sf?
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- Joined: Wed Mar 08, 2006 8:15 pm
Re: New MateFinder Release
Short test. Despite name it was not better mate solver than default SF. Also it was not better in tactics. But when I acticate "study" switch it solved some difficult studies impressively fast! I quess "study" is nullmove off?
Jouni
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Re: New MateFinder Release
Could not get it to run under Mac OS X 10.11.2 seg 11 error.
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- Posts: 12540
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: New MateFinder Release
It solves many mates that SF cannot solve.Jouni wrote:Short test. Despite name it was not better mate solver than default SF. Also it was not better in tactics. But when I acticate "study" switch it solved some difficult studies impressively fast! I quess "study" is nullmove off?
The easy mates, all the engines will solve them.
I do admit that I did not test the latest version yet.
But I have used it to solve many dozens of checkmates in a short time that the factory fresh SF could not solve in an hour.
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.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.