7-men Syzygy attempt

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noobpwnftw
Posts: 360
Joined: Sun Nov 08, 2015 10:10 pm

Re: 7-men Syzygy attempt

Post by noobpwnftw » Sun Aug 19, 2018 4:04 pm

All 7-piece tables have been built. I have also renamed the folder(removed "_testing").

Now the full set is at:
ftp://ftp.chessdb.cn/pub/syzygy/7men/

Final sizes:

Code: Select all

151G    ./3-6men
12T     ./7men/4v3_pawnful
2.4T    ./7men/4v3_pawnless
2.3T    ./7men/5v2_pawnful
660G    ./7men/5v2_pawnless
117G    ./7men/6v1_pawnful
87G     ./7men/6v1_pawnless
17T     ./7men

Code: Select all

First file built:
2018/03/19
Last file built:
2018/08/20
Exactly 5 months!

Sesse
Posts: 180
Joined: Mon Apr 30, 2018 9:51 pm
Contact:

Re: 7-men Syzygy attempt

Post by Sesse » Sun Aug 19, 2018 6:01 pm

Congrats! It's a milestone.

I still haven't bought more disks. Have to plan that at some point…

duncan
Posts: 10380
Joined: Mon Jul 07, 2008 8:50 pm

Re: 7-men Syzygy attempt

Post by duncan » Sun Aug 19, 2018 7:50 pm

noobpwnftw wrote:
Sun Aug 19, 2018 4:04 pm
All 7-piece tables have been built. I have also renamed the folder(removed "_testing").

Now the full set is at:
ftp://ftp.chessdb.cn/pub/syzygy/7men/

Final sizes:

Code: Select all

151G    ./3-6men
12T     ./7men/4v3_pawnful
2.4T    ./7men/4v3_pawnless
2.3T    ./7men/5v2_pawnful
660G    ./7men/5v2_pawnless
117G    ./7men/6v1_pawnful
87G     ./7men/6v1_pawnless
17T     ./7men

Code: Select all

First file built:
2018/03/19
Last file built:
2018/08/20
Exactly 5 months!
excellent work you did. thanks

todd
Posts: 51
Joined: Thu Apr 19, 2018 7:09 pm

Re: 7-men Syzygy attempt

Post by todd » Sun Aug 19, 2018 9:22 pm

Time to rename the thread "7-men Syzygy success" :)

Congrats, and thanks for your valuable contribution to chess.

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cdani
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Location: Andorra
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Re: 7-men Syzygy attempt

Post by cdani » Sun Aug 19, 2018 10:26 pm

noobpwnftw wrote:
Sun Aug 19, 2018 4:04 pm
All 7-piece tables have been built.
Thanks and congratulations!!!

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phhnguyen
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Location: Australia
Full name: Nguyen Hong Pham
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Re: 7-men Syzygy attempt

Post by phhnguyen » Mon Aug 20, 2018 12:12 am

noobpwnftw wrote:
Sun Aug 19, 2018 4:04 pm
All 7-piece tables have been built. I have also renamed the folder(removed "_testing").
Exactly 5 months!
Wow, congrats!!!!

Quick glance, I see some amazing things, compared with Lomonosov EGTB:
- so short building period (5 months on non-supercomputers vs 6 months supercomputers)
- so small size (17T vs 150T)

----
Now I am curious about 8 men. Perhaps they will take about 4 years and 200T to build on non-supercomputers? Doable :?:
https://banksiagui.com
A freeware chess GUI, based on opensource Banksia - the chess tournament manager

ernest
Posts: 1860
Joined: Wed Mar 08, 2006 7:30 pm

Re: 7-men Syzygy attempt

Post by ernest » Mon Aug 20, 2018 12:48 am

noobpwnftw wrote:
Sun Aug 19, 2018 4:04 pm
All 7-piece tables have been built.

Exactly 5 months!
Thanks !!!
Great effort !!!

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Nordlandia
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Joined: Fri Sep 25, 2015 7:38 pm
Location: Sortland, Norway

Re: 7-men Syzygy attempt

Post by Nordlandia » Mon Aug 20, 2018 7:21 am

Amazing milestone. Now you might demand few quite days following. What is the next plausible project?

Sesse
Posts: 180
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Re: 7-men Syzygy attempt

Post by Sesse » Mon Aug 20, 2018 9:08 am

phhnguyen wrote:
Mon Aug 20, 2018 12:12 am
Now I am curious about 8 men. Perhaps they will take about 4 years and 200T to build on non-supercomputers? Doable :?:
These things tend to be exponential. In particular, you'd need a machine with a lot more RAM than 1TB.

There are certainly entities that could build 8-man tables (Google, Facebook, Amazon, several state actors, probably also many others), but I don't think any of them are interested.

duncan
Posts: 10380
Joined: Mon Jul 07, 2008 8:50 pm

Re: 7-men Syzygy attempt

Post by duncan » Mon Aug 20, 2018 12:29 pm

Sesse wrote:
These things tend to be exponential. In particular, you'd need a machine with a lot more RAM than 1TB.
I thought roughly speaking you need 60 times more hard disk and ram for each extra piece.

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