7-men Syzygy attempt

[noobpwnftw]

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]

Congrats! It's a milestone.

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

[duncan]

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]

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

Congrats, and thanks for your valuable contribution to chess.

[cdani]

All 7-piece tables have been built.

Thanks and congratulations!!!

[phhnguyen]

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

[ernest]

All 7-piece tables have been built.

Exactly 5 months!

Thanks !!!
Great effort !!!

[Nordlandia]

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

[Sesse]

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]

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.