What tasks has set itself a professional tester?

Some time ago, we found out that testers have a lot of opportunities for improvement. Today a professional tester can not afford to blindly follow the test plan which was written in the early stages of the project. It is inappropriate and it is not interesting to test using test cases that cover all stated requirements. Obviously, professional test engineers take responsibility for the interpretation of the requirements and approach their tasks in different ways. Moreover, the same problem can be solved by different decisions and we can find different errors. 

 To learn how to work well with this approach, you need to learn different techniques to solve problems and puzzles for testers. That is what we are going to do in my master class. I'll show you the new challenges of the ISTQB advanced level courses. And for dessert, we consider open questions-essay of the most difficult exams Certified Software Test Engineer (CSTE)