My daughter's science teacher has given her some nasty puzzles which drive her nuts. Wanna help?


There are 9 dots. Can you connect all the dots by drawing 4 lines without lifting your pencil?



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This question brings back happy memories for me because it is the
first "brain teaser" that I remember working. It is also a good
example of thinking "outside the box."

For clarity, I am going to number the dots:

1 2 3
4 5 6
7 8 9

Start at point 4. Draw the first line from point 4 and through point
7.

However, (here's the trick), DRAW THE LINE BEYOND POINT 7 AND INTO THE
SPACE JUST BELOW THE 7. The second line is drawn from the space below
the 7, and through points 8 and 6.

Again, don't end the line segment at 8. Continue the line outward
(northeast) until it is just to the right of point 3, then stop.

Line Three starts at that point, then goes (left) through points 2 and
1, then stops AT 1. The last line connects 1 with 9 (through 5).

Thanks!

No prob. Gotta be thinking outside the box!!

There's a way to do it with just 3 lines as well, tho I don't recall it. Rep points to anyone who can post that one!!

yep...if GBM hadn't already answered, I knew that one!