The New Sudoku Players' Forum

[numbers]

Can someone -- please help me:
What I need to know is what is the 3rd number in the top left grid??

9 7 _ _ _ 2 1 _ _
4 _ _ 6 _ 7 9 _ _
8 3 _ _ _ 1 6 _ _
6 1 _ _ 5 _ _ 9 _
_ 2 _ 3 9 4 _ 6 _
_ 9 _ _ 1 _ _ 7 8
_ _ 9 1 _ _ _ 2 6
_ _ 5 8 _ 3 _ _ 9
_ _ 7 4 _ _ _ 3 5

[Carcul]

Hi Numbers.

Welcome to this forum. You only need to try to solve that puzzle, because it only needs singles to be solved.

Carcul

[Sped]

Can someone -- please help me:
What I need to know is what is the 3rd number in the top left grid??

Code: Select all

 *-----------*
 |97.|..2|1..|
 |4..|6.7|9..|
 |83.|..1|6..|
 |---+---+---|
 |61.|.5.|.9.|
 |.2.|394|.6.|
 |.9.|.1.|.78|
 |---+---+---|
 |..9|1..|.26|
 |..5|8.3|..9|
 |..7|4..|.35|
 *-----------*


The top left box needs a 6, and it can't be in row 2 because the center top box has a 6 in row 2. It can't be in row 3 because the top right box has a 6 in row 3.

So the 6 in the top left box must go in row 1, and the only open space in row 1 of that box is the third cell. We call it r1c3 for row 1, column 3.

[numbers]

Carcul, Sped, Thank you both for responding.
I am on my way to learning how this [i]Sudoku[/i] works.

Thank you again for your help.

[Cec]

"... what is the 3rd number in the top left grid?? "

Hi numbers,

To make it easy for you to describe different grids, we call them "boxes" and are numbered 1 to 9 in the following sequence:

123
456
789

Your "top left grid" would therefore be Box 1. If you click on HERE you can read up on the Forum's recommended Terminology.

Cec

[Mike Barker]

A short list of sudoku terminology can be found at: http://forum.enjoysudoku.com/viewtopic.php?t=4120

[Cec]

A short list of sudoku terminology can be found at: http://forum.enjoysudoku.com/viewtopic.php?t=4120

Thanks Mike for enlightening me that this preferred link is still available. I thought it had been "lost" when included as part of the "Sticky Thread". Whilst both links describe the "Basic Terms" I prefer "your" link as it excludes some pre-amble which might confuse those not familiar with its meaning - this includes me

Cec
edited by Cec 4 00pm