Brain Busting Puzzles: 4 Classic Wooden Puzzles

Brain Busting Puzzles: 4 Classic Wooden Puzzles Still in Box, is a popular, timeless collection of 3D interlocking brain teasers manufactured by Professor Puzzle. Designed to test spatial reasoning, logic, and patience, the set challenges players to completely disassemble the pieces and successfully lock them back together. The Cross: An interlocking burr puzzle shaped like a 3D cross. It relies on identifying a single "key" piece that slides out first, causing the remaining interlocked bars to loosen and separate. The Grid: A grid-like interlocking block structure, also known as a Burr Diamond. Solving it requires pulling parallel bars away from each other symmetrically until the central locking beam can be freed. The Box: A collection of interlocking notched blocks that form a solid cube. It requires sliding the outer perimeter pieces outward in an alternating pattern to access the central structural core. The Twist / Star: A cluster of diagonal, triangular-faced pieces that fit together diagonally. Reassembly requires holding the pieces in two symmetrical halves and sliding them together at a precise angle. Over all condition good. All sales are considered FINAL SALE.

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