We are coding an algorithm (called a learning space) to help Chinese teachers tailor their lessons to the level of each learner. To build this technology we need bags of Mandarin test results. And to collect these results, we need you.

Sign up to the WenTest today to put your Mandarin skills to the test and help us help everyone learn one of the world's most ancient, crazy and fascinating languages.

(Plus, if you complete 195 questions by 15 August, you can show off on our swanky rankings and win an invitation to the best hot pot in town.)

Sign up to take the test.