The New Sudoku Players' Forum

[1to9only]

An updated version on the program (4 Nov 2019 release) can be downloaded here.

[tarek]

An updated version on the program (4 Nov 2019 release) can be downloaded here.

Excellent. we may even get the chance of catching the Loch Ness Monster

tarek

[1to9only]

we may even get the chance of catching the Loch Ness Monster

note the code is disabled in 2 places, SolvingTechnique and Solver - just reenable and rebuild before going fishing!

[tarek]

we may even get the chance of catching the Loch Ness Monster

note the code is disabled in 2 places, SolvingTechnique and Solver - just reenable and rebuild before going fishing!

Good to know!

[1to9only]

Some of the big fishes can be found in the 300 puzzles tarek posted here:
Starfish: #009 #126 #152 #159 #185 #205 #215 #220 #234
Whale: #070 #163
Leviathan: #073 #216

There are a number of Quintuplets:
Naked Quintuplet: #004 #079 #083 #112 #168 #242 #278 #284
Hidden Quintuplet: #083 #136 #168 #247 #269

No Sextuplets, but I found a Naked Sextuplet in a puzzle I generated:

Code: Select all

....GF......M...
.D.F.L.A.O..KGI.
.CK.H.JE.M.P.F..
BN.PIDK.G...H.J.
..F.J.LKM..HDP.B
.......O....G.LN
.PI...HG.L.AFC..
...ND....CFO.HE.
.BG.EAP....IN...
..NDK.I.OB...AP.
PM.I....C.......
O.JEL..HFP.N.D..
.F.G...J.KHLE.CA
..H.A.E.PF.C.MN.
.OMB..D.E.G.P.F.
...K......OM.... ED=7.4/1.2/1.2


And no sightings of Septuplets, Octuplets or Loch Ness Monster (so named because the UFG has no name for an 8-fish).

[tarek]

I know that this is not fair but here is how you to catch the LNM (which in my opinion is a worthy addition to the UFG):

If a digit is not included in the 4x4 subset of givens, but does appear once in a row outside that subset, it forces the candidates for that digit into the remaining 4 rows of those 4 columns - i.e. a jellyfish. In Mauricio's last 5 puzzles, there are three such digits excluded from the 4x4 subset of givens and given once outside the subset - hence 3 jellyfish visible before any PMs.

in 16x16: You need a Puzzle with 64 of the clues in cells occupying the intersection 8 columns and 8 rows (an 8x8 set). Any value that doesn’t appear in the puzzle will construct an LMN in the remaining 8 rows and 8 columns

This suggests that we need a the above puzzle with one missing value and the LNM will be available from the start!

You have to thank the minds of Mauricio and susume who made this possible!!!

The Octuplet needs an empty region and will not be in any puzzle that doesn't have one. The Septuplet will need a region with 1 or 2 known clues to appear

tarek
[edit: this is funny but this is to amend the way I’ve written the above]

[tarek]

we may even get the chance of catching the Loch Ness Monster

note the code is disabled in 2 places, SolvingTechnique and Solver - just reenable and rebuild before going fishing!

Good to know!

Enable all techniques in SolvingTechnique.java but de-select them by modifying the following in Settings.java:

Code: Select all

private void init() {
     techniques = EnumSet.allOf(SolvingTechnique.class);
     //default deselected techniques are added here
     techniques.remove(SolvingTechnique.Technique1Name);
     techniques.remove(SolvingTechnique.Technique2Name);
}

The techniques are De-Selected by default now. The GUI user is free then to Select/De-Select them from the Options>Select Technique.
If you want to remove the warning message about the disabled techniques upon Select technique frame closure then disable this line in SudokuFrame.java

Code: Select all

      refreshSolvingTechniques();

[1to9only]

Noted. But I do not plan any further work on SE16, as I mentioned in my last post prior to today yesterday. If there is clamour for the disabled techniques, I suppose I can rebuild and rerelease. Enabling the disabled techniques will slow things down by between 3%-5%.

[tarek]

Now that I found an easy way to do it, I will do the same with Sukaku explainer. The more complex techniques that will degrade solving speed in general or the rare techniques that will be of interest to a minority will be de-selected by default. They would be available to select from the menu if required. If you happen to choose not to open the Techniques selection window then you wouldn’t know that these de-selected techniques even exist!

[tarek]

Regarding naming big fish …

What about 6x6, 7x7, 8x8, 9x9?

From the thread you mentioned vidarino regards 6x6 as a "whale", 7x7 as a "leviathan", while tarek has these suggestions:

As for the naming, I suggest:

n=5, Starfish instead of Squirmbag
n=6, Seksfish:D (You can't object on this one Vidar)
n=7 Dogfish (7 letters)
n=8 Octupus
n=9 Enniafish
n=10 Hammerhead (10 letters) or Whaleshark

Of course only finned version of these big fishes are useful, because for "normal fish" exceeding 4x4 in size we'll just deal with their duals...

I honestly can't remember posting this but these were my attempts at naming fish that didn't materialize in the UFG. I'm happy that people are using Starfish instead of squirmbag though. I still love the LNM

[Mathimagics]

John Cleese would be very disappointed not to see any sign of the legendary Venzuelan Beaver Fish ...

[tarek]

John Cleese would be very disappointed not to see any sign of the legendary Venzuelan Beaver Fish ...

UFG was the "National Fish emporium"

[1to9only]

New release: download link: here.
No major changes, maybe a few fixes, improvements, and I've imported some bits from my other Explainers:
- Dark theme, 'Restart...' and 'Save as image...' options, and 'Apply Singles' button.

[m_b_metcalf]

SE16 did not rate any of blue's ultimate 16x16s puzzles posted here.
The 1st puzzle is at least ED=12.8, as from these solving steps: [snip]

Does the latest version have any changes that could make rating blue's puzzles feasible?

Thanks,

Mike

[1to9only]

Does the latest version have any changes that could make rating blue's puzzles feasible?

Probably not. But I have not tried rating blue's puzzles again.

For puzzles that take a very long time to rate, I have some code (for >= 9x9 variants) that can rate a puzzle in multiple steps!!
I've not worked on it recently, but I might try it on blue's puzzles sometime.