CCRL Discussion Board

h.g.muller, thank you for your stats.Seems, that I still have to improve some parts of my algorithm. Actually I thought Bitbases should be a bit faster in generation, as the move-number doesn't matter. My algorithm is currently looking something like that: Generate Mates, Promotions to won subgames,...

Hi! I am currently working on a Bitbase generator. And today I have successfully generated my first 5-men Bitbase ("KBNKB") All in all it took my 3,06GH processor 343 seconds. Now I wanted to know, how this performance is compared to other generators. I was as well thinking of making this ...

Some 7 men endgames do exist (http://www.gothicchess.com/javascript_8 ... dings.html)
but as far as I know, none including pawns have been generated yet.

You should be thinking about using Freezer, it is perfect for endgames with blocked pawns, as this could then be simplified a lot.

Codeman

You are right ... now it seems to work

Hi!

There must be something wrong with the tablebases on http://www.k4it.de/index.php?topic=egtb&lang=en

The position:
8/8/8/8/8/8/8/2K2kBN w - - 0 1


shows a draw if WTM, which is not true!

--------------------------- Wilhelm-Setup --------------------------- Wilhelm-Setup wurde unterbrochen, bevor die Software vollstandig installiert werden konnte. Sie konnen das Wilhelm-Setup spater vollstandig wiederholen, um die Installation zu abzuschlie?en. --------------------------- OK -------...

Arpad Rusz, you were right, I was taking my figures from wrong sources. I havent got figures for 6men (incl. 51) but now I am taking your 1,2 TB In MB 3 0,06 ( x 439,79 ) 4 26,8 ( x 268,99 ) 5 7208,96 ( x 170,45 ) 6 1.228.800 ( x 112,05 [personal estimation following the trend]) 7 137.691.970 --- gu...

I now started creating my own little generator. Could you please tell me, what is the fastest generation-method for bitbases? I was thinking of a generic algorythm: 1) Generate all mate-positions (mark as win in TB) 2) From each position check white moves that get to 1) 3) From those poitions check ...

Considering the last developments of EGTB generations and the space requirements: (in MB) 3 0,063476563 4 30 5 16977,92 6 1048576 7 ? You can see that the amount of space required is increasing exponecially I looked at it using a logarithmic scale and I would estimate 7 piece endgames to take around...

Hallo! The last couple of weeks I was getting interested into EGTBs and I would like to participate in their generation. I was as well thinking about small things, which could still be improved: A lot of space is still wasted by broken position, where stm is in check. As far as I know Nalimov only r...