The puzzles for upper-intermediate students on this page are designed to help you master B2 level. The grammar, vocabulary, and language functions included, as well as the real-world situations they prepare you for, align with the CEFR (Common European Framework of Reference), a global standard for assessing language proficiency. Each CEFR level, from A1 (beginner) to C2 (proficient), includes specific grammar and vocabulary that learners must use effectively in real-life contexts. These puzzles cover all the essential language skills and provide practical exercises to help you practice. Successfully completing all the puzzles demonstrates that you have acquired the knowledge and skills needed to progress to the next level.