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Well, you are witty, but your wits were probably working on a different problem... :-)

If you haven't already done so, try using a spreadsheet to solve the problem. It's a lot easier to clean up mistakes than trying to draw lines onto the original matrix.

start.png

I assigned a letter to each number in the original matrix and then filled in cells with where the lines should go. So as you can see above, line L extends out from the 3. You already know what the final solution is; see if you can figure out how to get there.

Well, I'm not a good spreadsheet user too,, :]]. Thank you to let me know that spreadsheet can help you with this kind of problem. I only know how to use spreadsheet for typing. not more than that...:'(. I'll give a try..