JPS6016264B2 - 3D puzzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the same volume limited by a certain rule,
It concerns a three-dimensional puzzle in which all irregularly shaped pieces are stacked up into a rectangular parallelepiped.

Next, a specific configuration of an embodiment of the puzzle according to the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view showing an example of a completed puzzle of the present invention stacked up into a rectangular parallelepiped (4×4×5).

As shown in Figure 2, the pieces of the puzzle that can be stacked are as follows: First, four unit cubes are assembled into a square shape on a plane to form a unit rectangular parallelepiped, and then two of these unit rectangular parallelepipeds are stacked together. If we find pieces that are odd-shaped pieces that have at least one or more unit cube faces b matched and connected, the limit is that we can obtain IM pieces A to J as shown in Figure 3. When the pieces of this 1 box are mirrored, A, B
, C, D, E, 1 remain unchanged, but F and G,
Day and J are mirror images of each other. Figure 4 shows the stacking method shown in Figure 1 divided into two congruent blocks a and b.If block b is rotated 180 degrees around the center line Y and returned to its original state, a different completed example will be obtained. Settle. When a and b block mirror images are created, the result is a' and b' in Fig. 5. In the a block, the piece J protrudes from the upper surface, but in the a' block, the piece J protrudes. In block b, piece A is on top of piece G, but in block b', piece A is on top of piece F. If you make a mirror image like this, the pieces will also be swapped, so the fourth
By combining a and b in the figure with a' and b' in Fig. 5, eight completed examples can be obtained. Figure 6 shows the eight ways of completion as piece D.
It is shown in an exploded perspective view without changing its position. The left half of the figure shows a plan view, a front view, and a right side view, and the right half shows a spinal view, a left side view, and a bottom view. When this puzzle is completed, there are no pieces that are hidden from the surface of the rectangular parallelepiped, so if you record it as shown in this figure, you will be able to reproduce the completed example without duplicating records. The feature of the puzzle of the present invention is that each piece is made by combining two simple rules, so it combines the complexity of 8 unit cubes with the simplicity of 2 unit rectangular parallelepipeds, making it look easy at first glance, but is actually very simple. It's a difficult puzzle. As explained above, the present invention can provide a three-dimensional puzzle that can satisfy all puzzle enthusiasts.

The computer has obtained the basic solution 25 weights and the complete solution 5G weights including mirror images.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the completed puzzle, Figure 2 is a perspective view showing how to make the pieces, Figure 3 is a perspective view of all the pieces, and Figure 4 is a perspective view of the puzzle when it is disassembled into two congruent blocks. figure,
FIG. 5 is a mirror image of FIG. 4, and FIG. 6 is a developed perspective view showing the recording method. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1 One piece is formed by joining two unit rectangular parallelepipeds a, each having a size in which four unit cubes having the same volume are lined up horizontally and vertically, two in each direction, and these two unit rectangular parallelepipeds are the same as the unit cube. are joined to each other by one or more of the faces b of the pieces, and the shapes of each piece are all different limits.
Using 0 pieces A to J, the unit cube has 4 pieces vertically and horizontally,
A three-dimensional puzzle that is assembled into a rectangular parallelepiped with five pieces in height.