Four Fit Puzzle

Reproduction of a famous puzzle designed by Stewart Coffin, is a deceptively simple yet challenging tray-packing puzzle. Comprising just four uniquely shaped pieces, the objective is to fit them all into a rectangular frame. Despite its minimalistic design, the puzzle offers a surprisingly difficult challenge that can provide hours of engaging fun. This puzzle is renowned for its ingenious solution, which has intrigued and stumped puzzle enthusiasts for years.Equipped with a practical sliding lid.Attached is the PDF with the solution