I haven't seen a puzzle with less then 20 known cells.
Is this the minimum?
What is the minimal possible number of know cells?
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What is the minimal possible number of know cells?
by Morgoth » Wed Dec 07, 2005 9:23 am
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- Joined: 06 December 2005
by Wolfgang » Wed Dec 07, 2005 10:12 am
See 17-clues and the minimum clue thread here.
E.g. this one is nice to solve (with turbot fish/coloring):
E.g. this one is nice to solve (with turbot fish/coloring):
- Code: Select all
------------
1..|2..|...
.2.|...|3..
...|.4.|.5.
------------
4..|...|.6.
..5|..3|...
...|...|..7
------------
.8.|...|..2
..4|.6.|...
...|..5|1..
------------
- Wolfgang
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by tso » Wed Dec 07, 2005 7:10 pm
Though the unproven but likely minimum for a 9x9 Sudoku with 3x3 sub-boxes is 17 -- the minimum for a 9x9 with irregularly shaped sub-boxes is just EIGHT.
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