If your goal is to understand the solutions rather than just copying:
If you are looking for specific topics to study, the 2013 edition covers: spisat gdz po matematike 9 klass gia-2013 lysenko
: More complex inequalities and functions (Paragraphs 18–22). If your goal is to understand the solutions
: You can often find PDF versions or scans of these older reshebniks on academic sharing sites like 100ballnik or specialized "GDZ" portals like GDZ.ru or MegaResheba , though you may need to search by the specific ISBN or the "Legion" series name. Content of the 2013 Lysenko Tests search for OGE Lysenko 2020-2024 solutions
: The core math syllabus hasn't changed significantly since 2013. If you can't find the 2013 PDF, search for OGE Lysenko 2020-2024 solutions; many of the "standard" algebraic problems and geometric theorems remain identical.