Based on the user reviews of the "Defending Pattern" app, here are three Pros and Cons: **Pros:** 1. "Easy to use and understand, even for beginners, clear instructions and helpful exercises." 2. "Improve my chess skills significantly, recognition and analysis of patterns outstanding." 3. "Interesting and challenging, keeps my mind active and engaged, great for mental exercises." **Cons:** 1. "Not enough explanations and feedback, sometimes hard to know what to improve." 2. "Limited practice options, would like to see more scenarios and puzzle variations." 3. "Occasional crashes and freezes, needs more stability and reliability."