NURIKABE Puzzle Book – Level 4 Boost your brain power with this collection of 110 Nurikabe logic puzzles in a 6x6 grid format. Perfect for puzzle lovers, teens, and adults looking for a challenge! ✅ Level: 4 ✅ Number of puzzles: 110 ✅ Grid size: 6×6 ✅ Available formats: PDF – Ready to print PPT – Easy to present or edit JPG – High-quality images of each page Great for: Brain training Classroom or homeschooling activities Travel or screen-free time