Maximum number of clues for a given SE rating

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

Postby 999_Springs » Sun Apr 05, 2009 7:40 pm

Eioru wrote:
Code: Select all
.62.78.95
8.93.56.7
57.69..8.
.95784.6.
7.6..985.
.8.5.67.9
.5796...8
9.8..75.6
6..85.97.             ER=9.0         49 clues

It's only got 48 clues.

I had a bit of fun with it...

Code: Select all
.62.78.95
8.93.56.7
57.69..8.
.95784.6.
7.6..985.
.8.5.67.9
.5796...8
938..75.6
6..85.97.

ER=7.9, 49 clues (sorry tarek)

Code: Select all
.62.78.95
8.93.56.7
57.69..8.
.95784.6.
7.6..985.
.8.5.67.9
.5796...8
9.8..75.6
6..85397.

ER=8.4, 49 clues

I also found another non-isomorphic 67-clue puzzle rated 1.5.
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Postby Eioru » Fri Apr 10, 2009 11:01 am

Code: Select all
639724158
72...6439
.4..3.267
46..7.382
.932.8746
287643591
376482915
854197623
912365874             ER=6.6         69 clues
Eioru
 
Posts: 182
Joined: 16 August 2006

Postby Eioru » Thu Apr 30, 2009 3:16 pm

Code: Select all
764.8.391
539714628
821...754
195.7.462
248956137
673.4.589
..6.2.9..
.5.....4.
....3....             ER=5.0         51 clues
Eioru
 
Posts: 182
Joined: 16 August 2006

Postby coloin » Sat May 09, 2009 2:26 pm

That 5.0 was found from the patterns game results !
Code: Select all
700080001009704600020000050100000002040906030000000000006020900050000040000030000 #  56    5.0/1.5/1.5 + gsf


So this 4.7 from the next game.....
Code: Select all
0000010000001203400050000060100000005060000030002604100070080050400070002000000000 #  70    4.7/1.2/1.2 - m_b_metcalf

expands to
Code: Select all
+---+---+---+
|.24|.16|5.3|
|6.1|253|4..|
|35.|.4.|261|
+---+---+---+
|14.|...|625|
|.6.|125|.34|
|5.2|6.4|1..|
+---+---+---+
|27.|481|.56|
|4.6|579|.12|
|.15|362|74.|
+---+---+---+  SE 4.7   55 clues
coloin
 
Posts: 1629
Joined: 05 May 2005

Postby 999_Springs » Sat May 09, 2009 2:59 pm

Found by almost random aimless clicking with my mouse on SE:

Code: Select all
1.8|469|.53
5.6|1.3|9..
493|2.5|1.6
---+---+---
715|942|638
839|651|...
264|837|591
---+---+---
647|528|319
381|794|265
952|316|..7 SE 1.5, 68 clues


As a result of this "random aimless clicking", my mouse now has a red light flashing on it, indicating that it's low on battery. Maybe I shouldn't have done that.
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Postby 999_Springs » Mon May 18, 2009 10:26 am

Code: Select all
6..3.2.59
52..4..1.
..35..2..
3..1945..
.1.658.3.
..5273..1
..4..51..
.3..2..45
75.4....8    10.4/10.4/9.4 38 clues

6..3.2.59
52..4..1.
..35..2..
3..1945.2
.1.658.3.
..5273..1
..4..51..
.3..2..45
75.4.1..8    9.3/9.3/9.2 40 clues

6..3.2.59
52..4..1.
..35..2..
3..1945.2
.1.658.3.
4.5273..1
..4..51..
.3..2..45
75.4.1..8    9.2/9.2/9.2 41 clues

4..|153|.2.
..3|.6.|45.
.5.|.4.|..3
---+---+---
1..|6.5|.74
..4|.3.|5..
5..|4.7|.8.
---+---+---
347|58.|.1.
6..|2.4|735
..5|37.|.4.   8.1/8.1/2.6 40 clues

4..|153|82.
..3|.6.|45.
.5.|.4.|..3
---+---+---
1..|6.5|.74
..4|.3.|5..
5..|4.7|.8.
---+---+---
347|58.|.1.
6..|2.4|735
..5|37.|.48   8.0/8.0/2.6 42 clues

(the first three are based on Mauricio's 37 clue)
(the last two are based on JPF's 8.1 from patterns game 78)
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Location: In the toilet, flushing down springs, one by one.

Re: Maximum number of clues for a given SE rating

Postby m_b_metcalf » Fri May 28, 2010 2:07 pm

Was this topic still active? Is there a summary of progress thus far? Here's one I found recently.

Code: Select all
 
 1 2 3 4 5 6 7 8 9
 8 7 5 . 2 . 4 1 6
 9 4 6 . . . 2 5 3
 6 . . . . . . . 7
 7 . 9 . 3 . 1 . 2
 4 . . . . . . . 8
 5 6 4 . 7 . 8 9 1
 2 9 8 . . . 3 7 5
 3 1 7 5 9 8 6 2 4   ED=7.2/4.2/4.2, 53 clues, 7.2 reached at 54 clues

Regards,

Mike Metcalf
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