05/01/2013 - Connected Circles (***)

This puzzle is rated 3 star (hard).

Description
Build the grid shown below.

Puzzle
Place all of the numbers 1, 2, 3, 4, 5 and 6 into the six circles so that the numbers next to each circle are the sum totals of all of the connected circles.

For example:
The diagram shown below, can be completed, by using the numbers 1,2 and 3.

 With the correct answer being.

Check the solutions page for the correct answer.