perplexus.info :: General : Connecting dots

Connecting dots (Posted on 2005-08-14)

The 22 dots in the figure below can be connected by 11 lines, each beginning and ending with a dot (o) and passing through 4 empty cells. Connecting lines may proceed horizontally or vertically, but not diagonally. They may change direction as often as needed, and they should not cross one another.

               +---+---+---+---+---+---+---+---+
               |   | o | o |   |   | o |   | o |
           +---+---+---+---+---+---+---+---+---+---+
           |   |   | o | o | o |   |   |   |   |   |
           +---+---+---+---+---+---+---+---+---+---+
           |   |   |   |   |   | o |   |   |   | o |
           +---+---+---+---+---+---+---+---+---+---+
           | o |   |   |   |   |   |   | o |   | o |
           +---+---+---+---+---+---+---+---+---+---+
           | o |   |   | o |   |   | o | o |   |   |
           +---+---+---+---+---+---+---+---+---+---+
           | o |   |   | o |   | o |   |   |   |   |
           +---+---+---+---+---+---+---+---+---+---+
               |   |   | o |   |   |   | o | o | 
               +---+---+---+---+---+---+---+---+

Can you do it?

Submitted by pcbouhid

Rating: 1.5000 (4 votes)

Solution: (Hide)

One solution is (we remove divisions, to better understanding what dots has to be connected):
+---+---+---+---+---+---+---+---+ | o | o | o | o | +---+ +---+---+---+ + + +---+---+ | | o | o | o | | | | + +---+ + + +---+---+ + + + | | | | | o | | o | + + +---+ + +---+---+---+ +---+ | o | | | o | o | +---+ + +---+---+---+---+---+---+---+ | o | o | o | o | +---+---+---+---+ +---+---+---+---+ + | o | o | | o | | | +---+ + +---+ + + + + +---+ | | o | | o | o | +---+---+---+---+---+---+---+---+

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: 2 solutions?	Will	2005-08-24 21:53:15
Explanation	JoeFish	2005-08-18 05:32:03
chips challenge	jeffrey	2005-08-16 18:11:20
2 solutions?	Tristan	2005-08-16 02:38:00
re: Solution	Hugo	2005-08-15 21:09:21
re: Graphic Design	pcbouhid	2005-08-15 14:42:37
Graphic Design	brianjn	2005-08-15 13:39:19
Solution	Lisa	2005-08-15 13:17:40
Pen and paper trial and error solution	JoeFish	2005-08-14 16:22:11

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