The best game of the last 50 years - Free

Hi lucky owners of iPhone, iPod touch and iPad!
The free version of the NumberWiz app is now available in the App Store. 
Those of you who have watched Countdown on British TV know that this is probably the best maths game ever. You pick six numbers in the range 1 to 10 and the big numbers 25, 50, 75, 100 at random. Then you add, subtract, multiply and divide them to arrive at a result in the range 1 to 999. To succeed in this takes some numerical skills, but above all it takes loads of creativity.
This free version limits the result to the range 150 - 199. That should give you an idea of what the paid version has to offer.
As the headline will tell you, I consider this game to one of the great mind games of our time. The rules are simple as indeed they are in most great games. It's particularly nice to play NumberWiz on an iPad, with the chunky graphics.
====== You've got to try it! ======