The Final Frontier!
If you're one of the first three people to solve the final puzzle, you're in with a chance of meeting Marcus and winning this beautiful 3D-printed sculpture.
The Code might have come to an end but the Code Challenge is just hotting up. With the transmission of the third and final episode of the series you should now have all the clues in place to move on to the next stage of the competition. And the first three to crack this will get the chance to meet me and battle it out in a final round on the 10 September.
One of the most exciting things about making this series has been seeing how the Code Challenge has really got people actively involved in the content of the programmes. Mathematics is not a spectator sport and the interactive treasure hunt has provided a fantastic extra dimension to exploring the maths at the heart of our world. I never expected our prime number community challenge to be completed so quickly. Viewers came up with some really inventive ways to find primes: from the countdown clock at the launch of the Atlantis space shuttle which got held at 00:31 to finding people who'd got primes tattooed on their arms (well it was actually me who found that one).
One of the really exciting things about being a mathematician is having one of those "aha" moments where you suddenly make a breakthrough on a problem you've been working on for ages. It really is the buzz that I live for as a mathematician. It's been great to see that viewers have been having their own "aha" moments solving some of the trickier bits of the treasure hunt whether it was cracking the formula behind the puzzling dice in episode 2 or suddenly seeing numbers in the stars in episode 1.
It's always a bit sad to see the last programme go out in a series. When you make a TV show like this it really does become part of your life. We started filming the Code in February when we visited the Merker's mine with its extraordinary cubic salt crystals and we finished in mid-June when we witnessed the total eclipse of the moon in Cyprus. It's one of the real privileges of making TV to have the chance to visit so many fascinating locations during the months of filming. But we have been working on the programme for years before the first shots were taken, trying to find the best way to bring a very abstract subject like mathematics to life in a visual medium like TV. Although I get to be in front of the camera it must be recognised what an amazing team effort it is to make a TV series like The Code and I have had a great team of people to work with. Thank you to you all.
We hope you enjoyed the series and continue to have fun solving the puzzles. Good luck in the final push to get your hands on the treasure - I'll be meeting three of you in a month's time!