A Pure Jellyfish Collection

Everything about Sudoku that doesn't fit in one of the other sections

A Pure Jellyfish Collection

Postby tarek » Mon Dec 17, 2007 11:58 pm

Code: Select all
Rules(v6.0):
1. Valid vanilla 9*9 sudoku
2. NEEDS a Jellyfish to solve after applying the following set of techniques:
   2.1. Singles (Hidden/Naked)
   2.2. Box-Line/Line-Box interactions
   2.3. Subsets (doubles,triples,quads) (Hidden/Naked)
   2.4. X-Wing
   2.5. Swordfish
3. Solved using the following set of techniques:
   3.1. Singles (Hidden/Naked)
   3.2. Jellyfish (JF)
4. Jellyfish needed (Point 2)>=Jellyfish needed (Point 3), achieved electronically through solving 1000 isomorphs of the same puzzle according to:
    a. Point 2 (1000 isomorphs)
    b. Point 3 (1000 isomorphs)
    minimum number of jellyfish recorded in "a" is compared to
    the minimum number of jellyfish recorded in "b"
5. Symmetric (I-VII)
6. Minimal
7. NEEDS a Jellyfish to solve after applying the following set of techniques:
   7.1. Singles (Hidden/Naked)
   7.2. Box-Line/Line-Box interactions
   7.3. Subsets (doubles,triples,quads) (Hidden/Naked)
   7.4. X-Wing
   7.5. Finned X-Wing (incl. Sashimi)
   7.6. Simple Colouring
   7.7. XYZ-Wing
   7.8. XY-Wing
   7.9. Swordfish
   7.10. Finned Swordfish (incl. Sashimi)
   7.11. Uniqueness (1-4)
   7.12. Empty Rectangle
   7.13. BUG+1
   This is approximated electronically by using gsf's sudoku
   -q{FNB2B3H2T2T3H3T4H4W2W3X}{W4}-G I2>0 options

--Puzzles will be checked against the sequence of rules starting from 1 & ending at 7.
--Checking will stop when a puzzle fails to satisfy a ceratin rule.
--Each Puzzle will acquire a Score equal to the highest rule being checked against.
--if a puzzle passes all rules (1-7) then it will score an "8"

Score interpretaion:
Score = 1 ==> Invalid puzzle
Score = 2 ==> Requires other than a Jellyfish to solve
Score >=3 ==> Requires a Jellyfish to solve
Score >=4 ==> Pure Jellyfish (Pat's Extra Lenient criteria)
Score >=5 ==> Pure Jellyfish (Tarek's Lenient criteria but with Symmetry & Minimality not obligatory)
Score >=6 ==> Pure Jellyfish (Tarek's Lenient criteria with Minimality not obligatory)
Score >=7 ==> Pure Jellyfish (Tarek's Lenient criteria)
Score = 8 ==> Pure Jellyfish (Tarek's Rigorous criteria)

Following ocean's "A Pure X-Wing collection", I decided to start this thread.
The rules above are not written in stone. Any suggestions will be discussed & changes can be made.

The aim is to create puzzles that provide many "Red herrings" when only Jellyfish are needed.

Latest compiled lists can be downloaded through the following links:
Pure Jellyfish puzzle collection: Score >=4
Jellyfish puzzle collection: Score >=3

tarek
Last edited by tarek on Sun Jul 04, 2010 11:07 am, edited 12 times in total.
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Postby simdav » Tue Dec 18, 2007 12:34 am

Sounds interesting.....
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Postby tarek » Tue Dec 18, 2007 10:52 am

1st Puzzles:
Code: Select all
 7 . . | . 2 . | . . . 
 . . 1 | . . 9 | . 6 . 
 . 8 . | 4 . . | 2 . . 
-------+-------+------
 . . 6 | . . . | . 5 . 
 9 . . | . . . | . . 1 
 . 3 . | . . . | 7 . . 
-------+-------+------
 . . 2 | . . 6 | . 9 . 
 . 4 . | 7 . . | 8 . . 
 . . . | . 3 . | . . 6 

 7 . . | . 6 . | . . . 
 . . 3 | . . 1 | . 8 . 
 . 2 . | 7 . . | 6 . . 
-------+-------+------
 . . 8 | . . . | . 4 . 
 1 . . | . . . | . . 3 
 . 9 . | . . . | 2 . . 
-------+-------+------
 . . 6 | . . 8 | . 1 . 
 . 5 . | 2 . . | 7 . . 
 . . . | . 7 . | . . 8 

 6 . . | . 7 . | . . . 
 . . 1 | . . 5 | . 3 . 
 . 2 . | 4 . . | 6 . . 
-------+-------+------
 . . 3 | . . . | . 1 . 
 9 . . | . . . | . . 2 
 . 4 . | . . . | 7 . . 
-------+-------+------
 . . 9 | . . 3 | . 5 . 
 . 7 . | 6 . . | 9 . . 
 . . . | . 1 . | . . 3 
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re: pure Jellyfish

Postby Pat » Tue Dec 18, 2007 1:44 pm

tarek wrote:
    Rules:

    1. Valid vanilla 9*9 sudoku
    2. Symmetric (I-VII)
    3. Symmetrically Minimal

    4. Solvable using: (gsf's -qFNW4-G)
      4.1 Singles (Hidden/Naked)
      4.2 Jellyfish
    5. Not solvable using:
      5.1 Singles (Hidden/Naked)
      5.2 Box-Line/Line-Box interactions
      5.3 Subsets (doubles,triples,quads) (Hidden/Naked)
      5.4 X-Wing
      5.5 Finned X-Wing (incl. Sashimi)
      5.6 Simple Colouring
      5.7 XYZ-Wing
      5.8 XY-Wing

      5.9 Swordfish
      5.10 Finned Swordfish (incl. Sashimi)
      5.11 Uniqueness (1-4)
      5.12 BUG+1


Following Ocean's "pure X-Wing collection", I'm starting this thread.
    The rules above are not written in stone. Any suggestions regarding them would be discussed, and changes can be made.
The aim is to create puzzles the provide many red herrings when only Jellyfish are needed.


hey tarek, i know you love these extreme challenges -- but i must say i'm rather amazed that you found any puzzles satisfying these tough rules -- i have coloured those rules which i personally would drop

~ Pat
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Postby tarek » Tue Dec 18, 2007 2:02 pm

I am happy to change the rules.......

The reason that I added these limitations is that I think MANY would use these techniques PRIOR to looking for the Jellyfish (I might be wrong)...

These players would not encounter the Jellyfishes as frequent as you...

So these tough rules aim to satisfy a wider audience.

What do you think?!!

tarek
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Postby tarek » Tue Dec 18, 2007 4:24 pm

Rules have modified above to allow more valid puzzles.

tarek
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Re: A Pure Jellyfish Collection

Postby gsf » Tue Dec 18, 2007 10:17 pm

tarek wrote:
Code: Select all
Rules:
1. Valid vanilla 9*9 sudoku
2. Symmetric (I-VII)
3. Symmetrically Minimal
4. Solved using the following set of techniques (gsf's -qFNW4-G):
   4.1. Singles (Hidden/Naked)
   4.2. Jellyfish (JF)
5. "Lenient" Category: Not solvable using the following set of techniques (gsf's -qFNBTHW2W3-G):
   5.1. Singles (Hidden/Naked)
   5.2. Box-Line/Line-Box interactions
   5.3. Subsets (doubles,triples,quads) (Hidden/Naked)
   5.4. X-Wing
   5.5. Swordfish

for my solver 2007-12-18 (-Q negation bug fixed)
these options should capture rules 1-5
Code: Select all
-qFNW4-G -Q'!FNBTHW2W3-G' -e 'valid&&symmetric&&minimal'

-Q provides additional constraints that must be met
it can be an expression of constraints using ( ! || && ^ ) grouping and logic operators
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Postby tarek » Wed Dec 19, 2007 1:47 am

My 1st Puzzle fails point 7:(

Batches of JF following singles =2
Batches of JF following "Lenient" category techniques =1

tarek
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Postby tarek » Wed Dec 19, 2007 10:33 pm

new puzzles
Code: Select all
 . . . | 1 9 7 | . . . 
 . 4 . | . . . | . 7 . 
 . . 9 | . . . | 3 . . 
-------+-------+------
 8 . . | . 3 . | . . 2 
 7 . . | 9 . 2 | . . 4 
 3 . . | . 6 . | . . 1 
-------+-------+------
 . . 2 | . . . | 4 . . 
 . 1 . | . . . | . 9 . 
 . . . | 5 2 4 | . . .

 . 5 . | . . . | . 7 . 
 2 . . | . . . | . . 6 
 . . . | 4 5 6 | . . . 
-------+-------+------
 . . 7 | . 3 . | 4 . . 
 . . 6 | 5 . 1 | 2 . . 
 . . 9 | . 7 . | 1 . . 
-------+-------+------
 . . . | 8 1 2 | . . . 
 9 . . | . . . | . . 5 
 . 1 . | . . . | . 2 .

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Postby tarek » Fri Dec 21, 2007 11:16 pm

daj95376 in 'Jellyfish, rarest technique' thread wrote:
Code: Select all
 . 4 . | . 2 8 | . 7 1 
 8 7 . | 6 . . | . 2 . 
 . . . | . . . | . . . 
-------+-------+------
 . . 4 | 8 . . | 2 6 . 
 . . 1 | . 4 . | 9 . . 
 . 8 6 | . . 2 | 4 . . 
-------+-------+------
 . . . | . . . | . . . 
 . 6 . | . . 9 | . 4 3 
 1 3 . | 2 7 . | . 9 . 


 2 . . | . . 3 | 5 8 . 
 . . . | . 2 . | . . 1 
 . . . | 4 . 5 | 6 . . 
-------+-------+------
 . . . | 9 . 4 | . 6 8 
 . . 5 | . 1 . | 9 . . 
 6 1 . | 8 . 2 | . . . 
-------+-------+------
 . . 1 | 5 . 8 | . . . 
 3 . . | . 4 . | . . . 
 . 2 6 | 3 . . | . . 4 

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4 from daj95376

Postby Pat » Sun Dec 23, 2007 12:45 pm

in the Topic "Jellyfish ~ the rarest one method",
daj95376 (2006.Oct.1) posted 18 puzzles

4 of them qualify as "pure Jellyfish" puzzles
under my rules ( which tarek must consider extra-lenient )
  • puzzle number ( 1 - 18 ) in the daj95376 list
  • the puzzle
  • number of clues
Code: Select all
01,.......63..763.48...3..8..1.3...41.5.1..8..3.5.63...7.2..7..3...74.562..65.......,31
07,.4..28.7187.6...2............48..26...1.4.9...86..24............6...9.4313.27..9.,29
11,2....358.....2...1...4.56.....9.4.68..5.1.9..61.8.2.....15.8...3...4.....263....4,29
13,4..2.7.8...3..85.6.786...4.2.....61.....2.....17.....4.5...346.6.15..2...3.1.2..8,31

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Postby Pat » Sun Dec 23, 2007 1:25 pm


  • puzzle number in this Topic ( 1-9 ) -- my numbering
  • the puzzle
  • number of clues
  • puzzle source
    01,7...2......1..9.6..8.4..2....6....5.9.......1.3....7....2..6.9..4.7..8......3...6,22,tarek (2007.Dec.18)
    02,7...6......3..1.8..2.7..6....8....4.1.......3.9....2....6..8.1..5.2..7......7...8,22,tarek (2007.Dec.18)
    03,6...7......1..5.3..2.4..6....3....1.9.......2.4....7....9..3.5..7.6..9......1...3,22,tarek (2007.Dec.18)

    04,...197....4.....7...9...3..8...3...27..9.2..43...6...1..2...4...1.....9....524...,24,tarek (2007.Dec.19)
    05,.5.....7.2.......6...456.....7.3.4....65.12....9.7.1.....812...9.......5.1.....2.,24,tarek (2007.Dec.19)

    06,.......63..763.48...3..8..1.3...41.5.1..8..3.5.63...7.2..7..3...74.562..65.......,31,daj95376 (2006.Oct.1)
    07,.4..28.7187.6...2............48..26...1.4.9...86..24............6...9.4313.27..9.,29,daj95376 (2006.Oct.1)
    08,2....358.....2...1...4.56.....9.4.68..5.1.9..61.8.2.....15.8...3...4.....263....4,29,daj95376 (2006.Oct.1)
    09,4..2.7.8...3..85.6.786...4.2.....61.....2.....17.....4.5...346.6.15..2...3.1.2..8,31,daj95376 (2006.Oct.1)
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Postby TTHsieh » Sun Dec 23, 2007 3:12 pm

Is this Pure Jellyfish ?

Code: Select all
 1 . . | . . . | . . .
 . 2 . | 3 4 5 | . . .
 . . 5 | . . . | 4 . .
 - - - + - - - + - - -
 . 6 . | 7 . . | . 3 .
 . 8 . | . 1 . | . 5 .
 . 1 . | . . 9 | . 4 .
 - - - + - - - + - - -
 . . 7 | . . . | 5 . .
 . . . | 2 8 3 | . 6 .
 . . . | . . . | . . 8

  • 100000000020345000005000400060700030080010050010009040007000500000283060000000008
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Postby Pat » Sun Dec 23, 2007 3:42 pm

TTHsieh wrote:Is this Pure Jellyfish ?

Code: Select all
 1 . . | . . . | . . .
 . 2 . | 3 4 5 | . . .
 . . 5 | . . . | 4 . .
 - - - + - - - + - - -
 . 6 . | 7 . . | . 3 .
 . 8 . | . 1 . | . 5 .
 . 1 . | . . 9 | . 4 .
 - - - + - - - + - - -
 . . 7 | . . . | 5 . .
 . . . | 2 8 3 | . 6 .
 . . . | . . . | . . 8



sorry, no, can't be solved by Jellyfish + "singles"
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Postby ronk » Sun Dec 23, 2007 5:07 pm

Pat wrote:
TTHsieh wrote:Is this Pure Jellyfish ?

sorry, no, can't be solved by Jellyfish + "singles"

TTHsieh's puzzle does require line\box and box\line interactions, aka locked candidates, but IMO that is pressing "pureness" too far. After all, there is very little difference between these two 1-fish.
Code: Select all

 . . . | . . . | . . .      . . . | . . . | . . .
 / x / | / / / | / / /      x x x | / / / | / / /
 . . . | . . . | . . .      . . . | . . . | . . .
-------+-------+-------    -------+-------+-------
 . . . | . . . | . . .      . . . | . . . | . . .
 hidden single              line\box interaction

(Yes, I know you're using tarek's rules.)
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