Experience the complete Huge Hashi journey — from moderate to master-level — with this Mixed-Size Hashi Bridges Puzzle Book , featuring 120 handcrafted puzzles across three grid sizes: 40 puzzles of 20x20 , 40 puzzles of 25x25 , and 40 puzzles of 30x30 . Known as Hashiwokakero (橋をかけろ, meaning “build bridges” ), this Japanese logic puzzle — also called Bridges , Chopsticks , or Ai-Ki-Ai — invites you to connect islands using bridges according to simple yet challenging rules. Each island’s number shows how many bridges must connect to it, and your task is to create one continuous network without crossings. This special edition gives you a variety of difficulty levels and increasing grid sizes , offering a smooth progression from relaxing puzzles to brain-twisting challenges. With bold, easy-to-read numbers and an 8.5x8.5-inch square format , this book ensures both comfort and mental engagement. Inside You’ll Find: 120 mixed-size Hashi puzzles (20x20, 25x25 & 30x30) - Full solutions for every puzzle - Large print grids with clear numbers - Balanced difficulty from medium to hard - Ideal for logic puzzle lovers and fans of Japanese Nikoli-style puzzles Whether you call it Hashiwokakero , Bridges , Chopsticks , or Ai-Ki-Ai , this puzzle collection will keep your mind sharp and focused while offering hours of logical fun.