International Cambridge University Chemistry Challenge
This monthly challenge has five levels. You can use whatever means you like to solve the problems, just type your answer in the box and click Submit. If your answer is correct, you will progress to the next level. If you correctly solve all five levels, you will appear on the C3L6 Honours Board. Whilst we have made January’s challenge available early, subsequent challenges will be released at 00:00:01 (UK time) on the first day of each month. Will you be the first person in the world to solve the challenge and top the list?
Start the challenge! www.c3l6.org