There seems to be nothing left to fill in. I've looked at every single empty space and all them have 2 or more possiblities. I'm sorta of a newbie so excuse my ignorance.
TIA,
-Minh
Need help with a puzzle, do I need to make a guess?
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Need help with a puzzle, do I need to make a guess?
by entropy » Thu Sep 08, 2005 8:11 pm
There seems to be nothing left to fill in. I've looked at every single empty space and all them have 2 or more possiblities. I'm sorta of a newbie so excuse my ignorance.
TIA,
-Minh
- entropy
- Posts: 3
- Joined: 08 September 2005
by PaulIQ164 » Thu Sep 08, 2005 8:26 pm
Although on the face of it, every square has more than one possibility, there's rather more to sudoku than that. For example, look at the whole of box 3 (the top-right 3x3 box), and see which squares the 9 can go in.
That is, you can't just look at cells one-by-one, you have to examine whole rows and columns and boxes and see how many boxes all the missing numbers can go in. There are many more techniques than this that you can also use (and one in particular that I think you'll need to find before you can finish off this particular puzzle).
That is, you can't just look at cells one-by-one, you have to examine whole rows and columns and boxes and see how many boxes all the missing numbers can go in. There are many more techniques than this that you can also use (and one in particular that I think you'll need to find before you can finish off this particular puzzle).
- PaulIQ164
- Posts: 533
- Joined: 16 July 2005
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