The Ultimate Challenge is here!
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The Ultimate Challenge!
A beautiful 84-page book of puzzles, ranging from easy Sudoku and mazes to the most fiendish codes and mathematical brainteasers. Not all of them are hard, and not all are easy, but you'll have to solve every single one of them - and figure out how they're all joined together - to enter our Finale and have a chance at wining the treasure.
ÌýYou can right now, but you'll need your three Codebreaker passwords to unlock it, by following the instructions here. And don't worry if you don't have them all - there's still time to !
ÌýWe're kicking things up a notch with this challenge (you could say it's exponentially more tricky)! So, while you might be tempted to be a hero and try and solve the Ultimate Challenge on your own, you might also find that things go a lot faster if you work together, whether that's with friends or colleagues at work, or , Twitter with #bbccode, or other forums and wikis.
Another page from the Ultimate Challenge - but you'll need your three Codebreaker passwords to see them all!
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