OpenChess

Alternative Chess Test (ACT) - is series of chess tests that mostly contains tricky endgame puzzles and difficult mates.

Download:
https://www.mediafire.com/file/ir89pzfo ... 2.zip/file

It is probably the last new test from the ACT series. There will be no ACT6, instead of that I will release a refreshed ACT test with the hardest positions selected from ACT1-B, ACT2, ACT3, ACT4, ACT5 together with some new positions.

dorsz wrote: ↑

Tue Jun 07, 2022 4:45 pm

Alternative Chess Test (ACT) - is series of chess tests that mostly contains tricky endgame puzzles and difficult mates.

Download:
https://www.mediafire.com/file/ir89pzfo ... 2.zip/file

It is probably the last new test from the ACT series. There will be no ACT6, instead of that I will release a refreshed ACT test with the hardest positions selected from ACT1-B, ACT2, ACT3, ACT4, ACT5 together with some new positions.

Thanks a lot for the fine suite, especially grateful I'm always, if original sources with players'- (and) or composers'- (as for he studies) names are given together with the positions, there ACT includes more of that kind then most other suites to be downloaded from fora do.

Do you maybe have a download- link of ACT3 still too?
Dann Corbit gave one here long ago

http://talkchess.com/forum3/viewtopic.p ... 98#p820698

, but Rybka- Forum is archive only now, and search doesn't work (as well as my old username and password don't) to me there anymore.
BTW search here in OpenChess doesn't work for me neither. Tried many times over the weeks with several different terms.

Thanks again and thanks in advance,

Peter wrote: ↑

Wed Aug 17, 2022 8:27 am

Do you maybe have a download- link of ACT3 still too?

Everything is here from the beginning:
http://dorszcz.blogspot.com/

I will release something new this year. After that I will refresh all sets by removing too easy positions for nowadays engines and I will put them in two files: ACT2022 and TTT2022 (or 2023 if I don't make it this year).

dorsz wrote: ↑

Wed Aug 17, 2022 10:32 am

Peter wrote: ↑

Wed Aug 17, 2022 8:27 am

Do you maybe have a download- link of ACT3 still too?

Everything is here from the beginning:
http://dorszcz.blogspot.com/

I will release something new this year. After that I will refresh all sets by removing too easy positions for nowadays engines and I will put them in two files: ACT2022 and TTT2022 (or 2023 if I don't make it this year).

Thank you very much again!
Great news!
Best

Thank you for your testsuites! I had a lot of fun combining them:

I must finally find time to come back doing test suites. I had plently positions awaiting.

Great! Testsuites do not get the attention they deserve, and it must take human skill to make them.

For example in my post virtually all the Lc0 nets are in the expected order - except it was a surprise that my expensive 3080 benefited from the smaller faster LgDist, only maybe a minor disagreement (from perhaps elsewhere, but not me) about t1 lower than BT2.
Otherwise it was as expected: newer best, oldest worse.

These are maybe a little old from the high solved rate and low ave. time ("even" Lc0 got several instantly ) - but as above they were good enough for excellent differentiation.

I liked the 783 positions at 15 secs. each better than 783 games each which would take too long for me, or would have to have too short a TC to have much meaning to me (though that is done).

If you did make more I would probably run something like my last again: it worked out very well, and there are interesting things with Lc0 going on.

To re-phase my last: the only thing about ACT & TTT was some of the Mate in .., a low number of moves might be a little easy for newer engines.

Soon I will try Swordfish & Blue Marlin

I have plans to make a new test suite with revisited old positions and new ones. I started doing it in May but I had no time to finish it. But finally I will.