Hello Dear colleagues, We are launching a competition for the classification of malfunctions of rotary machines. We want to invite you to participate in it with the possibility of further publication of your results. We decided to use this competition to identify advanced classification algorithms that can effectively detect faults. If you have advanced ideas and enthusiasm, then you should not think any more. Good luck!! ## Acknowledgements The work has been carried out at the Oryol State University named after I.S. Turgenev” with the financial support of the Ministry of Science and Higher Education of the Russian Federation within the project “Creation of a digital system for monitoring, diagnosing and predicting the state of technical equipment using artificial intelligence technology based on domestic hardware and software”, Agreement No. 075-11-2021-043 from 25.06.2021.