For those that like a bit more of a challenge, I've
used my Kakuro gemerating program to produce a large Kakuro. This is
24x34 cells and doesn't have to be symmetrical. The mask is produced by me by hand.
In order to print it out so that you can have a go at it, you need to
click on the Kakuro puzzle so that it appears in a window of its own. If you don't
do this, you will probably not be able to print it out on one sheet of paper (this
site's URL is at the bottom-right of the image anyway).
This is an occassional treat so enjoy it. The time at the bottom left is a good
indication of how long it would take you to do it if you have the same abilities
as me so, you could well end up doing it in a shorter period of time (I just wrote
the program - I don't have to be particularly fast at them).