From myself: Super tasker and super tutorial!!! Masterpiece! If I can not solve the problem of planarity, then I pick up this book, and the problem is solved. Or maybe I just found it there.... Abstract to the book: The book can be used as a problem book on geometry for grades 7-11 in combination with all existing textbooks on geometry . It includes non-standard geometric problems slightly increased in comparison with school-level problems. The collection contains about 1,900 problems with complete solutions and about 150 problems for independent solution. With the help of this manual, you can organize pre-profile and profile training in mathematics, elective courses on additional chapters of planimetry . The materials of this manual fully cover the subject and complexity of the tasks of the Olympiads of all levels and all types of exams, including the USE and entrance exams to universities . For schoolchildren, teachers of mathematics, heads of mathematical circles, students of pedagogical institutes and universities . Other books in . In. Prasolova on infanata. org:Elements of combinatorial and differential topology. Elements of homology theory . Visual topology . Multi-members. Tasks on elementary geometry on infanata. org:Rybkin N. A. "Compendium of Geometry Problems"3iv B. G. "Tasks to the urns of geometry. 7-11 classes"Compendium of problems in mathematics for entering the abscess (with solutions). Kn. 2. Geometry (revised .) M. and . Scanavi