Challenge 6 closes at 11pm tonight, so don’t forget to submit your solutions before then. Even if you don’t get full marks it will get you on the leaderboard for this challenge and help your position on the overall leaderboard.
If you have finished already, then maybe you could be researching for tomorrow’s chapter, which as usual will go live at 3pm. There is some hint as to what to expect in the solution to Challenge 6, so take that seriously and get to work.
Finally, if you feel all set for that and need something interesting to read, how about taking a look at Madness’s book “Substitution Ciphers and how to break them”. We have a free pdf here in the BOSS site, or you can buy your own printed copy from Amazon at Substitution Ciphers and how to break them.
Enjoy!
