Puzzle block for recreation has cylindrical drillings and round bars, cylindrical drillings being of different lengths, whereby block C is kept between block A and block B and two single round bars constitute another round bar

摘要

The puzzle block (1) has two blocks (A,B) with several cylindrical drillings and round bars whereby the lengths and diameters of round bars is such that they fit into cylindrical drillings. The cylindrical drillings are of different lengths and block C is kept between block A and block B. The round bar (10) is made up of single round bar (11) and bar (12).