scan solution grids for 17 clues as of blue

Programs which generate, solve, and analyze Sudoku puzzles

Re: scan solution grids for 17 clues as of blue

Postby champagne » Sun Sep 13, 2020 10:00 am

Milestone September 13th

Mathimagics, continues to run the slice 130-140. Band 136 is closed, band 137 at half way
I am in trouble with a recent move to another place, but the workers are again in action, the main point to solve is a limited and temporary access to the net

Band 27 is closed and band 28 is on the way and should be covered in September
Bands >= 260 are closed
Comments on this V4 will come later in a separate post.


Today, 193 "bands 1" out of 416 are closed, with no new 17.
This is 46.3% of the bands 1, but only around 27% of the solution grids.
On the worst cases side, the runtime per band 2 goes down slowly, but remains high.

Bands closed are bands index 0-27 31 189 260-415 plus bands 130-136 searched by Mathimagics.
champagne
2017 Supporter
 
Posts: 7178
Joined: 02 August 2007
Location: France Brittany

first milestone 2021

Postby champagne » Sun Jan 03, 2021 9:13 am

Milestone January 3th 2021,

Nothing to report would say Mathimagics. For all bands closed, all expected 17 are there and no new appeared so far.

Nearly 4 months since the last milestone and 27 more bands 1 closed. Around 7 to 8 bands closed per month.
With still 195 bands 1 to process, the full scan with the current available power and the current process should be closed in 2023 at best.

I revised once more the code and one faster version is in the final validation test. The switch to this version is expected end of this month.
The improvement in in the first part of the process: the extraction of a potential valid pair of “valid band 1” + “valid band 2”.
A significant jump in performance requires now another improvement in the second part of the process. So far, I did not see what to do.

Bands 0 to 32 are now closed, band 33 is more than 50% covered
Bands 130 to 144 have been processed by Mathimagics.
Bands >245 (worst cases) are closed

The final validation test has been started on bands 240 241 and will be done on the band 34

I’ll prepare in January comments on the new version.
champagne
2017 Supporter
 
Posts: 7178
Joined: 02 August 2007
Location: France Brittany

Previous

Return to Software