CCRL Discussion Board

kronsteen wrote:I welcome the idea of comparing our respective results (using PMs for that will be okay).

Just sent you a PM concerning the two differences in viewtopic.php?p=79892#p79892 (Mate in 137)

ernest wrote:it seems there are some typos.
For instance 48. Kc3 is followed by 49. Kc5

Well it seems 49. Kd5 is the only typo, should be corrected to 49. Nd5

The DTM50 of my friend then agrees with your pgn (mate in 59)

One optimal line is : 1. Kf4 Kf7 2. Nd4 Ke7 3. Ke5 f4 4. Ngf5+ Kd7 5. Nf3 Kc6 6. Kd4 Kb5 7. Ne7 Kb4 8. Nc6+ Kb5 9. Kd5 Ka6 10. Ncd4 Kb7 11. Nb5 Kb6 12. Nd6 Kc7 13. Nc4 Kd7 14. Nb6+ Kc7 15. Kc5 Kb7 16. Nd5 Ka6 17. Nc7+ Kb7 18. Ne6+! Ka6 19.Nd8 Ka7 20. Kb5 Kb8 21. Kc6 Ka7 22. Ne6 Ka6 23. Nc7+ Ka7 24....

That's a very generous offer, Josh !!!

I actually got my 6-men, a few years ago, from that other very generous Norwegian, Steinar, with his site

http://tablebase.sesse.net/

Contrary to some allegations, it seems it is still operational...

Maybe clear your browser cache or try with a different browser? I think it simply has to do with the Posts Per Page option of the Rybka Forum. In my case, I have it at 70 . How much is it in your case? (maybe default is 60?) It is true that the side to move is different, but the colors of the piece...

See here . OK thanks syzygy! Now I have no problem finding that http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=24816;pg=4 but still cannot find your http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=24816;pg=5 ...simply because page 5 does not exist for me in that Rybka forum t...

syzygy wrote:In this file one can find 8/6R1/8/6N1/3k1K2/1B6/7n/7q w - - with mate in 1090 half moves, i.e. 545 full moves.

Thanks!
Do you know where this file comes from?

See also : http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=24816;pg=5 that page does not seem to exist... kqnkrbn should definitely be the 7-men longest checkmate winner with QN4n1/8/3k4/8/b1K5/8/8/6r1 b - - 0 1 (mate in 545) I have seen it to be a 517 DTC , but do you have a link for th...

Ray wrote:How much will be required for the full set ?

...and (I think it's not the same question) how big will be the 6-men bitbases?
I recall that SMK said that his projected Shredder's 6-men bitbases (shredderbases) would be 40 GB in size (compressed).

What kind of questions do you hope to see answered in 5x5 chess? Nothing in particular, Kirill, except that I enjoyed playing that game (through zillions-of-games) and that is the smallest chess with all pieces. And I am mainly interested in the variant with pawns on the 2nd and 4th rank, and symme...

Kirill Kryukov wrote:...and a subset of 4x4 chess (up to 9 pieces so far).

I hope that someday you'll get to 5x5 minichess!...

guyhaw wrote:knowing if the Lokasoft URL is still live and usable ...

Live: yes http://www.lokasoft.nl/tbapi.aspx

Usable: not sure (only 5-men...)

maybe http://www.freesoft.org/brent.html ???

Kirill Kryukov wrote:earthquake in Japan

Didn't know you lived in Japan.
Amid all this disaster, it's fortunate and I am glad that you are in the southern part of the country.

plinius wrote:I doubt whether it will be suported on my Windows 7 PC...

It says: "Freezer runs on all Windows PCs with at least Windows 98."

The purpose of the test was to try and see if the time of 7:16 was "extraordinary" or not. OK Ed, I did the 3 consecutive tests, on the same Houdini 1.01 engine , but 32-bit and on my (lowly) Core 2 Duo @3GHz (2threads), 512 MB hash. 1st try: mate in 15 obtained in 26 minutes, at depth 31...

Ed Trice wrote:Small changes matter.

Yes, but have you done 3 successive tests, in conditions as identical as possible?
I am sure that you will then see the same large variance!

...simply because this is MP!

So there was some variance depending on the "state of the computer" at the time of the test. Hi Ed, I don't understand :o If those tests were done with MP, why do you relate the "variance" to the "state of the computer"? Isn't that the same as saying that the variance ...

Ed Trice wrote:The application runs on a single core and does absolutely no parallel processing.

Fair enough!

Ed Trice wrote:Unbelievably, the lowly i5-2500K @ 5.09 GHz was able to defeat the 5.27 GHz i7-980 extreme!

And how do you explain that?...
4 cores better than 6 (at approx. the same GHz)???

Kirill Kryukov wrote:A simpler variant, like 4x4 chess without knights and bishops, should be still interesting.

This is why I am quite interested by the "simpler" variant of 5x5 chess ("italian chess"):
kqbnr/ppppp/5/PPPPP/KQBNR
Any news about that?

Codeman wrote:Wilhelm
where can I download this piece of software?
http://home.datacomm.ch/kruandr/index.htm

Hi,

This link does not seem to work any longer...

Any other link?

guyhaw wrote:The DTZ50 EGT only signals a win if the defender cannot claim a 50-move draw. That's how it helps!
g

Can somebody explain that a little further?...

Kirill Kryukov wrote:I now added automatic display of the FEN string above the diagram. Enjoy.

Thanks !!!!!!!!!!!
Good move !!!!!!!!!!!!