numbers wrote: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.