The book contains problems of increased complexity in geometry for 7th grade students. Each chapter begins with a list of the main facts and concepts related to this section. Then the solutions to several of the most typical problems of increased complexity are analyzed. The following are tasks for independent solution. It is recommended that students solve problems in the proposed sequence, since this order is aimed at the gradual formation of the ability to solve problems. At the end of the manual, answers are given and instructions are given for all tasks. The book can be useful for both teachers and students who want to improve their level or prepare for a mathematical Olympiad, the level of which is below the level of the final stage of the All-Russian Olympiad ..