Echo 4 – Intermediate Packing Puzzle Echo 4 is an acrylic packing puzzle designed and produced by Yuu Asaka. The objective is to fit all 4 pieces into the frame, a simple-looking task that asks solvers to think beyond the most obvious approach. With only four pieces, Echo 4 is approachable, but the solution still depends on careful observation and spatial reasoning. The puzzle is designed to challenge assumptions about how the pieces should fit. Its clean acrylic construction and compact format make Echo 4 a polished, gift-friendly addition to a packing puzzle collection. Specifications: Designer: Yuu Asaka Producer: Yuu Asaka Difficulty Level: Intermediate Puzzle Type: Packing Puzzle Objective: Fit all 4 pieces into the frame Material: Acrylic Pieces: 4 acrylic pieces Package Size: Approximately 5.43 in × 5.43 in × 0.71 in Target Time: 20 minutes Features: Four-Piece Challenge: A compact packing puzzle with a clean objective and a clever solution. Yuu Asaka Design: A thoughtful acrylic puzzle from a designer known for deceptive spatial ideas. Assumption-Breaking Solve: Encourages solvers to think beyond the obvious frame-packing approach. Compact Acrylic Format: Smooth acrylic pieces and a tidy frame make it easy to display or gift. Why You'll Enjoy It: Echo 4 is a great choice for solvers who enjoy elegant packing puzzles that do a lot with very few pieces. It is approachable enough for newer puzzlers, but still clever enough to satisfy collectors who appreciate a well-hidden idea. Questions? Need more information about this puzzle? Contact us and we'll be happy to help.
