All-Russian Student Tournaments of Mathematical Battles . Tula, 2002-2015. In 2 parts. Part I . The collection of problems and other materials”, created by the team of authors, is a unique and rich resource for everyone who is interested in modern mathematical competitions, intellectual games and the development of logical thinking. This book is not just a collection of problems, but a whole encyclopedia that reveals the richness and variety of mathematical battles held in Russia for more than two decades, from 2002 to 2015 The main idea of the book is to introduce readers to the rich experience of holding all-Russian student tournaments in mathematical battles, which have become a popular platform for the manifestation of the intellectual abilities of young scientists, students and schoolchildren. The first part of the book contains the most interesting, complex and original tasks used in these tournaments, as well as additional materials that reveal the peculiarities of preparation for competitions, strategies and methods of solving. Each task is a challenge for the mind, requiring a non-standard approach, creative thinking and a deep understanding of mathematical concepts, which makes the book a valuable tool for both contestants and teachers and mentors. The book "All-Russian Student Tournaments of Mathematical Battles" is perfect for students, teachers, teachers and everyone who wants to expand their knowledge in the field of mathematics, develop analytical abilities and learn how to solve non-standard problems. It will be especially interesting for those who are passionate about preparing for the Olympics, intellectual games or just looking for inspiration for new mathematical discoveries. The age range of readers - from senior schoolchildren to young scientists and teachers who want to deepen their knowledge and prepare for participation in similar events Particular attention in the book is paid not only to the tasks themselves, but also to the methods of solving them, which makes it a valuable teaching aid. It examines in detail the various approaches to the solution, logical schemes, tactics and strategies used in the combat conditions of tournaments. This approach helps the reader not only to master specific tasks, but also to develop system thinking, the ability to quickly navigate difficult situations and find non-standard solutions. As a result, the book becomes not only a collection of tasks, but also a practical guide to preparing for mathematical battles. The style of the authors is distinguished by clarity, accessibility and professionalism, which makes the book attractive to a wide audience. The team of authors, with extensive experience in conducting and analyzing mathematical tournaments, shares not only theoretical knowledge, but also practical advice, which allows the reader to feel like a participant in real battles and prepare for them as effectively as possible. The book also presents interesting facts and stories related to the holding of tournaments in Tula, which adds a special atmosphere to the book and makes it not only a textbook, but also a fascinating guide to the world of mathematical fights. If you are looking for a book that will help you not only prepare for participation in mathematical tournaments, but also expand the horizons of your knowledge, understand the intricacies of logical thinking and learn how to solve the most difficult problems - "All-Russian student tournaments of mathematical fights . Tula, 2002-2015. In 2 parts. Part I . A collection of tasks and other materials” will become an indispensable assistant for you . This book is a valuable legacy of the Russian mathematical community, which will inspire you to new achievements and open doors to the exciting world of intellectual competitions.