I've developed a simple app that helps to work out the possible combinations in a cage. You enter the cage total, the number of digits and what numbers must be included or excluded and it gives you all the possible combinations. You can also then filter the results for any other combinations that you know don't work.
It's really quick and simple to use, I use it myself all the time now!
It's available on the Apple App Store/iTunes and it's a FREE download.
It's called Killer Solver, you can also view some screenshots and a description on the web page http://www.kslsoftware.co.uk/killersolver.html
The web page also has a link to the App Store.
Give it a try... it is free
Regards
Andy Kemp
