The book "Tasks of the St. Petersburg Mathematics Olympiad 2020" , written by a team of authors Kohasem , The Brave , Berlov and Ivanov , It is a unique edition of ,. Which will be a real find for all lovers of mathematics and technology. who seek to develop their analytical abilities. This is not just a collection of problems, but a whole world of mathematical challenges that immerses the reader in the atmosphere of intellectual competition and inspires new discoveries. The St. Petersburg Mathematics Olympiad is one of the most prestigious events in the world of mathematical education, gathering talented schoolchildren and students from all over the country. This book presents the tasks that were proposed to the participants of the Olympiad in 2020. Each task is not just a mathematical puzzle, but a whole story that requires a creative approach and a deep understanding of the subject. The authors tried to select the most interesting and complex problems that reflect current trends in mathematics and allow the reader not only to test their knowledge, but also to expand their horizons. Who can like this edition? First of all, the book is addressed to high school students and students who are preparing for Olympiads and competitions in mathematics . It will also be useful to teachers who are looking for interesting materials for their lessons, and parents seeking to help their children in mastering complex topics. Even mathematics enthusiasts who have no ambition to participate in the Olympiads will find in this book many fascinating tasks that will allow them to enjoy the process of solving and discovering new knowledge. The topics raised in the book are diverse and cover a wide range of mathematical disciplines: from algebra and geometry to combinatorics and number theory. Each task requires not only logical thinking, but also a creative approach, which makes the decision process fascinating and exciting. The authors emphasize that mathematics is not just a set of formulas and rules, but a living science full of mysteries and discoveries. They aim to show how mathematical ideas can be applied in real life, which makes the book especially valuable for modern readers. The style of the authors is distinguished by clarity and accessibility of the presentation, which allows the reader to easily perceive even the most complex concepts. Khosha, Khrabrov, Berlov and Ivanov are known for their previous work in the field of mathematical education and popularization of science, and in this edition they continue their tradition. Their approach to learning is based on the principles of fascination and interest, which makes each page of the book a real adventure. If you are looking for inspiration and want to immerse yourself in the world of mathematics, “Tasks of the St. Petersburg Mathematics Olympiad 2020” will be an excellent choice for you. This book will not only help you develop your skills, but will also give you many hours of exciting pastime. Do not miss the opportunity to discover the amazing world of mathematical problems and test yourself for strength in an intellectual duel!