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?

See The Solution Submitted by pcbouhid

Rating: 1.5000 (4 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

Pen and paper trial and error solution

| Comment 1 of 9

Each set of capital letters is a pair of dots being connected

Each group of 4 lower case letters is the line connecting the corresponding dots.

                +---+---+---+---+---+---+---+---+
                | a |  A | B  |  b  | b | B |  c  | C |
        +---+---+---+---+---+---+---+---+---+---+
          | a   | a  | D  | E | F | b | b | c | c | c |
         +---+---+---+---+---+---+---+---+---+---+
          | a | d | d | e |  f |  G | g |  g |  g  |C |
         +---+---+---+---+---+---+---+---+---+---+
          | A  | d |  e |  e |  f |  f |  f  |  F |  g | G |
         +---+---+---+---+---+---+---+---+---+---+
          | D | d | e | E |  h |  h | H | I   |  i |   i |
         +---+---+---+---+---+---+---+---+---+---+
          | J |  j |  j  | J |  h  | K |   k |   k | i  |  i  |
         +---+---+---+---+---+---+---+---+---+---+
               | j |  j  | H |  h |  k |  k | K | I |
               +---+---+---+---+---+---+---+---+

I hope this displays right :-)

Posted by JoeFish on 2005-08-14 16:22:11

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