JP2012191998A - Block puzzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a block puzzle which can be carried around by being put into a pocket etc., and extended by combining a plurality of plate bases 3 as necessary.SOLUTION: This puzzle is played by using: the plate bases 3 having a large number of protrusions 7 on the top surfaces and double-stage structures where the center parts are one stage higher than the other four peripheral parts; recessed blocks 2 having flat top surfaces and recesses 8 which are formed at least in a two-row and two-column arrangement on the bottom surfaces; and recessed/protruded blocks 4 having the protrusions 7 which are formed at least in a two-row and two-column arrangement on the top surfaces and recesses 8 which are formed at least in a two-row and two-column arrangement on the bottom surfaces. The plurality of plate bases 3 can be combined by allowing the protrusions 7 to fit in the recesses 8 of the recessed blocks 2 or the recessed/protruded blocks 4. The top surfaces of the recessed blocks 2 are printed with numerical numbers, characters, part of picture patterns, etc., or stuck with seals having prints of them.

Description

  In the present invention, a plurality of blocks printed with symbols such as letters, numbers, etc. on the top of the image, such as a picture, a photograph, etc. are fitted to the plate base, so that the picture pattern, the perpetual calendar, etc. It relates to block puzzles that can be enjoyed.

  In recent years, the desire for saving has increased, and the demand for block puzzles that can be easily and repeatedly played at home has increased. In these markets, it is required to provide products having new functions and features in the conventional block puzzle.

  In such a trend, a pattern is completed by combining multiple blocks printed with a part of a pattern or photo cut out, or multiple letters or numbers are printed Products such as completing a perpetual calendar that can be used repeatedly by combining individual blocks are provided.

  For example, as in Patent Document 1, a device for a perpetual calendar has been proposed in which a foam board made of foam resin generally used in swimming or the like is used as a raw material and punched.

  On the other hand, as in Patent Document 2, dice-shaped blocks pre-printed with numbers and letters are arranged on the grid of a grid-like frame and used as a perpetual calendar, or simple text is displayed. Some ideas have been proposed.

  However, the perpetual calendar disclosed in Patent Document 1, Patent Document 2, and the like has a large size, and is a size that is used as a figurine or a decoration in a general household. Therefore, it is of a portable size that can be carried in a pocket or the like, and it cannot withstand vibration.

  In addition, the fountain calendars disclosed in Patent Document 1 and Patent Document 2 are limited in the size of the base on which the blocks are arranged, and can be used by freely expanding the base according to the consumer's preference. It's not something you can do.

Registered Utility Model No. 3067312 Registered Utility Model No. 3154746

  As mentioned above, although technologies related to reusable perpetual calendars have been proposed, if you find a portable size that can be carried in a pocket and can withstand vibrations, There is no actual situation. Further, the size of the base on which the blocks are arranged is limited, and it is not something that can be used by freely expanding the base according to the preference of the consumer.

  Therefore, the present invention can be used repeatedly by fitting a block on which a pattern or a number is described to the base, and can be carried in a pocket etc. The purpose is to provide a block puzzle that can freely expand the size of the base on which the block is fitted.

  The present invention aims to solve the above-mentioned problems.

  The invention according to claim 1 is a block formed by fitting a plurality of blocks having concave portions having a substantially rectangular cross section on the bottom surface to a plate base having convex portions having a substantially rectangular cross section on the top surface. In the puzzle, the plate base has a two-stage structure in which the central portion occupying most of the top surface is one step higher than the surrounding four-side portions, and the top surface of the block is a flat surface, and the bottom surface thereof Is a concave block having the concave portions formed in at least two rows and two columns, and the convex portion of the plate base and the concave portion of the concave block are fitted, and one of the plate bases The concave portion of the concave block is formed on the convex portion formed on the four-side portion adjacent to the combined portion of the plate base and the convex portion formed on the four-side portion adjacent to the combined portion of the other plate base. The By engaged, it is characterized in that it is possible to combine a plurality of said plate base.

  That is, a concave block can be used as a uniting block for uniting a plurality of plate bases. Since the concave block has a total of four concave portions arranged in two rows and two columns on the bottom surface, after fitting with the convex portions of the plate base, the concave block is glazed or rotated in the fitting axis direction. There is nothing. Therefore, even if it is carried in a pocket or the like, the concave block does not come off from the convex portion of the plate base.

  The invention according to claim 2 is a block formed by fitting a plurality of blocks having concave portions having a substantially rectangular cross section on the bottom surface to a plate base having convex portions having a substantially rectangular cross section on the top surface. -In the puzzle, the plate base has a two-stage structure in which the central portion occupying most of the top surface is one step higher than the surrounding four-side portions, and the top surface of the block is a plane, The bottom surface has a concave block having the concave portion formed in at least 2 rows and 2 columns, and the top surface has the convex portion formed in at least 2 rows and 2 columns, and the bottom surface has at least 2 There are concave and convex blocks having the concave portions formed in two rows, and the convex portions of the plate base, the concave blocks and the concave portions of the concave and convex blocks are fitted, and the concave and convex portions Of the mold block Part, the concave and convex block and the concave part of the concave block are fitted, and the convex part formed in the four-sided part adjacent to the united part of the one plate base, and the other A plurality of the plate bases can be combined by fitting the concave blocks of the concave block or the concave / convex block to the convex portions formed in the four-side portions adjacent to the combined portion of the plate bases. It is characterized by being able to do it.

  When a plurality of plate bases are combined using a concavo-convex block, the height of the convex portions of the plate base after combining can be the same in both the central portion and the surrounding combined portion. Therefore, when the combined plate base is used, a large seamless pattern can be formed.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the plate base has the concave portions at four sides around the bottom surface, and the concave portions are formed on the concave-convex block. It is characterized by being fitted with a convex part.

  By fitting a plurality of concavo-convex blocks into a concave portion formed in the peripheral portion of the bottom surface of the plate base, a pair of partitioning portions can be formed and self-supported. In this case, by selecting the number of concavo-convex blocks according to preference, the angle can be adjusted to a desired angle even when installed for desktop use.

  The invention according to claim 4 is the invention according to claim 1, claim 2 or claim 3, wherein the block has a flat top surface and has one concave portion on the bottom surface, The concave portion includes a concave micro block that fits with the convex portion of the plate base and the convex portion of the concave and convex block.

  When the concave minute block is used, the area of the top surface is as small as 1/4 compared to the concave block, so that a higher-density block puzzle can be formed.

  According to a fifth aspect of the present invention, in the first, second, or third aspect of the invention, the block has one convex portion on the top surface and one piece on the bottom surface. It has a recessed part, This recessed part is characterized by including the uneven | corrugated type | mold micro block fitted to the said convex part of the said plate base, and the said convex part of the said uneven | corrugated block.

  By fitting the concave and convex micro-blocks to the lower protrusions formed on the four sides around the plate substrate, the height of the protrusions on the top surface of the plate substrate can be made uniform.

  The invention according to claim 6 is the invention according to claim 1, claim 2, claim 3, claim 4, or claim 5, wherein the top surface of the concave block and the concave micro block is provided with numerals and letters. In addition, a part of a picture pattern or the like is printed, or a seal on which these are printed is pasted.

  It can be used as a block puzzle by printing numbers, letters, a part of a picture pattern, etc. on the top of the concave block or concave micro block.

  The invention according to claim 7 is characterized in that, in the invention according to claim 6, a perpetual calendar is created using either one or both of the plate base and the concave block or the concave micro block. Yes.

  By using the present invention, a perpetual calendar that can be carried in a pocket or the like can be created.

  The block puzzle according to the present invention can be used repeatedly by fitting or removing a block on which a picture pattern or a number is written on a plate base. And while being carried in a pocket etc., even if it fixes on the wall surface as a decoration, each block does not come off from a plate base.

  In addition, a plurality of plate bases can be combined according to the consumer's preference, and the size can be freely expanded for use. Therefore, a seamless pattern or the like can be formed.

  In addition, since the block puzzle using the present invention has a small number of parts, it can be manufactured at low cost.

It is explanatory drawing of a block puzzle. It is explanatory drawing of the pictorial pattern and perpetual calendar using a block puzzle. It is explanatory drawing which attached the magnet to the bottom face of the plate base. It is explanatory drawing which printed the picture pattern on the bottom face of the plate base. It is explanatory drawing of the top | upper surface of a plate base. It is explanatory drawing of the concave blocks 1 and 2. FIG. It is explanatory drawing of the uneven | corrugated block 4, 4a.

Hereinafter, an embodiment of a block puzzle 20 according to the present invention will be described in detail with reference to FIGS.
(Block puzzle according to the present invention)
The block puzzle 20 according to the present invention is composed of, for example, three types of structures characterized by shapes such as a plate base 3, a concave block 2, and a concave and convex block 4 (FIG. 1). These three types of structures can be manufactured by an injection molding method using a resin such as biomass plastic.

  These structures are formed with convex portions 7 and concave portions 8, each of which has the same size and shape, including those not shown, and the respective convex portions 7 and concave portions 8 are connected to each other. It can be integrated by fitting. And the cross section of each convex part 7 and the recessed part 8 is carrying out the substantially rectangular shape. In addition, since the cross section of the convex part 7 and the recessed part 8 is made into a rectangular shape, it does not rotate to an axial direction after fitting.

The object of the present invention is to provide a portable block puzzle 20 that can be carried in a pocket or the like, so that each structure itself has a small size and shape as described later. is there.
(Plate base)
The plate base 3 is a substantially rectangular parallelepiped having a planar shape, and a large number of convex portions 7 are formed on its top surface (FIG. 5). The convex portion 7 can be fitted with a concave portion 8 formed on a bottom surface portion of the concave block 2 (FIG. 6) and the concave and convex block 4 (FIG. 7).

  The top surface of the plate base 3 has a two-level structure, and the central portion that occupies most of the top surface is one level (equivalent to the height of the concave block 2 or the concave block 4) than the surrounding four sides. (About 2.5 mm) That is, one row of convex portions 7 formed on the four sides around the plate base 3 is formed at a position one step lower than the large number of convex portions 7 formed in the central portion.

  As will be described later, each plate plate 3 is provided with a lower projection 7 formed on the four sides around the top surface and a recess 8 formed on the bottom of the concave block 2 or the concave block 4. A plurality of plate bases 3 can be combined by fitting them so as to straddle the bases 3.

  When the plurality of plate bases 3 are combined using the concavo-convex block 4, the height of the convex portion 7 of the plate base 3 after the combination is the same height in both the central part and the combined part on all four sides. Can be. Therefore, when the combined plate base 3 is used, a large seamless pattern can be formed.

  On the other hand, the bottom surface of the plate base 3 is composed of a surrounding four-way portion and a central portion that is one step lower than the surrounding four-way portion (FIGS. 3 and 4). The surrounding four sides have a row of concave portions 8 and can be fitted to the convex portions 7 formed on the top surface of the concave and convex block 4 (FIGS. 2 and 7).

  A magnet 5 is affixed to the lower central portion of the bottom surface of the plate base 3 with an adhesive (not shown) so that it can be attached to or detached from a steel plate surface such as a refrigerator door. It can also be used (FIG. 3). Similarly, the plate base 3 can be affixed to a wall surface or the like with a double-sided tape (not shown).

In addition, a picture pattern or the like can be printed in advance on the lower central portion of the bottom surface of the plate base 3 and used as it is (Fig. 4).
(Concave block)
The concave block 2 has a substantially rectangular parallelepiped shape, the top surface has a planar shape, and the bottom surface has four concave portions 8 that can be fitted to the convex portions 7 of the plate base 3 and the concave / convex block 4. (FIG. 1, FIG. 6). The concave block 2 has a top surface of about 5 mm square and a height of about 2.5 mm.

  On the top surface of the concave block 2, a part of a picture pattern, numbers, characters, and the like can be printed, or a seal on which these are printed can be attached. Note that there are direct printing method, foil stamping printing method, silk printing method and the like as a printing method of a picture pattern, letters and numbers.

  Since the concave block 2 has a total of four concave portions 8 arranged in two rows and two columns on the bottom surface, after fitting with the convex portions 7 of the plate base 3 and the concave and convex block 4, the fitting shaft There is no glare or rotation in the direction. Therefore, the concave block 2 can also be used as a uniting block 10 of the plate base 3 as described later.

In this embodiment, the concave block 2 is described as having a total of four concave portions 8 arranged in at least 2 rows and 2 columns on the bottom surface, but 2 rows 3 columns and 2 rows 4 The same effect can be obtained for a column having a larger number of recesses 8 in the row direction and the column direction than in this embodiment.
(Uneven block)
The concavo-convex block 4 has a substantially rectangular parallelepiped shape, and has four convex portions 7 similar to the plate base 3 formed on the top surface, and 4 similar to the concave block 2 shown in FIG. 6 on the bottom surface. It has the recessed part 8 (FIG. 7). These concave portions 8 can be fitted to the convex portions 7 of the plate base 3 and the convex portions 7 of other concavo-convex blocks. As for the dimensions of the concavo-convex block 4, the top surface is about 5 mm square and has a height of about 3.5 mm.

  The concave / convex block 4 has a total of four concave portions 8 arranged in two rows and two columns like the concave block 2, so that the concave / convex block 4 is fitted with the convex portions 7 of the plate base 3 and the concave / convex block 4. Does not grab or rotate in the direction of the fitting axis.

  Therefore, the concave / convex block 4 can be used as the uniting block 10 of the plate base 3 as well as the concave block 2. When the plurality of plate bases 3 are combined using the concavo-convex block 4, the height of the convex portion 7 of the plate base 3 after the combination is the same height in both the central part and the surrounding combined part. Can be.

  The convex portion 7 of the concave / convex block 4 can be fitted to the concave micro block 1, the concave block 2 and the concave portion 8 of the concave / convex block 4. Therefore, by stacking the uneven blocks 4, the block puzzle 20 can be used for adjusting the thickness.

  Further, as will be described later, the convex portion 7 of the concavo-convex block 4 can also be fitted with the concave portion 8 formed in the peripheral portion of the bottom surface of the plate base 3 (FIGS. 2, 3, and 4).

  As another example of the concavo-convex block 4, as shown in the concavo-convex micro block 4a (one row and one column) as shown in FIG. There is a block having one recess 8. By aligning the concave and convex micro blocks 4a with the lower raised portions 7 formed on the four sides around the plate base 3, all the heights of the raised portions 7 on the top surface of the plate base 3 are aligned. Can do.

In the present embodiment, as the concavo-convex blocks 4 and 4a, those having convex portions 7 and concave portions 8 arranged in the first row and the first column and the second row and the second column on the top surface and the bottom surface are described. The same effect can be obtained for the case having a large number of recesses 8 in the row direction and the column direction as in the case of 2 rows 3 columns and 2 rows 4 columns.
(Concave micro block)
The concave micro block 1 has a substantially dice shape, the top surface has a planar shape, and the bottom surface is a block having one concave portion 8 that can be fitted to the convex portion 7 of the plate base 3 or the concave and convex block 4. Yes (Fig. 6).

  The size of the concave micro block 1 is about 2.5 mm square and the height is about 2.5 mm, and the top surface is printed with numbers, letters, a part of a picture pattern, etc. by the above-described method, You can put a printed sticker.

When the concave micro block 1 is used, since the area of the top surface is as small as 1/4 compared to the above-described concave block 2, a higher-density block puzzle 20 can be formed. In addition, since the cross section of the convex part 7 and the recessed part 8 to be fitted has a substantially rectangular shape, it does not rotate in the fitting axis direction after fitting.
(Combination of plate bases by concave block or concave block)
By using the concave block 2 or the concavo-convex block 4 as the uniting block 10, a plurality of plate bases 3 can be united (FIG. 1). First, the plurality of plate bases 3 are brought into contact with each other so that the combined portion 11 is formed. Then, the plurality of plate bases 3 are combined by fitting the two convex parts 7 of the adjacent plate bases 3 so as to straddle the two concave parts 8 of the concave block 2 or the concave-convex type block 4. Can do.

  For example, as shown in FIG. 1, the convex portions 7 adjacent to the combined portions 11 of the top surfaces of the four plate bases 3 are straddled across the concave portions 8 formed on the bottom surfaces of the concave and convex blocks 4. By fitting, each plate base | substrate 3 can be united firmly (FIG. 1).

  Here, since the concave portions 8 of the plurality of concavo-convex blocks 4 are fitted over the convex portions 7 in the vicinity of the combined portions 11 of the respective plate bases 3, the respective plate bases 3 are glazed or detached. I don't have to.

  That is, if the present invention is used, the size of the plate base 3 can be freely expanded according to the preference of the consumer, so that a seamless pattern can be formed. Accordingly, the size of the picture pattern or the like is not limited by the dimensions of the plate base 3. Note that the concave block 2 can also be used as the uniting block 10 in place of the concave-convex block 4 as shown in FIG.

(Cat design and perpetual calendar)
In FIG. 2, the block puzzle 20 according to the present invention is used as a perpetual calendar on one plate base 3 and a cat picture pattern on the other plate base 3. An embodiment in the case of combining using the uneven block 4 will be described.

  The concave block 2 printed for each block is used for one plate base 3 so that a cat pattern is formed in the assembled state. Then, the cat pattern is completed by fitting a large number of concave blocks 2 on which the cat pattern is printed on the top surface to the convex portion 7 on the top surface of the plate base 3.

  In the embodiment described above, the block using the concave block 2 as the block on which the picture pattern is printed has been described. However, if the concave micro block 1 having a small top surface size is used, a higher-density picture pattern can be obtained. Can be formed.

  Similarly, one plate base 3 and a concave block 2 on which letters and numbers are printed for each block are used so that a perpetual calendar is formed. Then, the perpetual calendar is completed by fitting the concave block 2 on which letters and numbers are printed on the top surface to the convex portion 7 of the plate base 3.

  When the month is changed, the character portion on which the day of the week is printed is left as it is, and after removing the concave block 2 on which the number representing the date is printed from the plate base 3, the concave block 2 Can be used as a perpetual calendar by fitting them at appropriate positions on a monthly basis.

FIG. 2 shows an example in which the first Sunday of the month is the first day. On the other hand, when the first day of the month is a day of the week other than Sunday (for example, Monday), the concave block 2 that is not printed on the top surface is connected to the convex portion 7 of the plate base 3. Or the concave block 2 on which pictograms or the like other than numerals are printed can be fitted to that portion.
(Combination of two plate bases)
Next, the plate base 3 of the upper cat picture pattern and the plate base 3 of the lower fountain calendar were combined using the concavo-convex block 4 as the uniting block 10 (FIG. 2).

  As described above, the top surface of the plate base 3 has a two-stage structure, and the one row of convex portions 7 formed in the surrounding four sides is 1 more than the convex portion 7 formed in the central portion. A step (about 2.5 mm) is formed at a lower position. A plurality of plate bases 3 can be combined using the convex portion 7 formed at the position one step lower.

  Here, two of the convex portions 7 at the lower end portion of the plate base 3 with the cat picture pattern and two of the plurality of convex portions 7 at the upper end portion of the plate base 3 with the perpetual calendar are The four concave portions 8 (not shown) formed on the bottom surface of the concavo-convex block 4 are used, and the concave portions 8 are fitted so as to straddle the two plate bases 3 so that the respective plate bases 3 are combined. Can be made into one.

  That is, the concave portion 8 of the concavo-convex block 4 as the uniting block 10 is formed on the convex part 7 adjacent to the united part 11 of the upper plate base 3 and the convex part 7 adjacent to the united part 11 of the lower plate base 3. The two plate bases 3 can be united by fitting.

  This completes a block puzzle in which a cat picture pattern is formed above the combined portion 11 and a perpetual calendar is formed below (FIG. 2). Further, since the concave / convex block 4 is used by fitting the concave / convex block 4 as the uniting block 10, the height of the convex portion 7 on the top surface of the concave / convex block 4 is large in the central portion of the plate base 3. The height and side of the convex part 7 can be aligned. Therefore, it can be used as a single plate base without a joint.

  The concave-convex block 4 has a total of four concave portions 8 arranged in two rows and two columns, and the concave portions 8 are fitted so as to straddle the convex portions 7 of the two plate bases 3. Therefore, the plate bases 3 after the uniting are firmly fixed, and they are not glazed or rotated in the fitting axis direction. Therefore, even if the combined plate base 3 is put in a pocket or the like as it is, each block or plate base 3 is not detached, and can be carried as it is.

On the other hand, the concave block 2 can be used in place of the concavo-convex block 4 as long as it is used only as a uniting block 10 for uniting a plurality of plate bases 3. However, in this case, since the convex portion 7 is not provided on the top surface of the concave block 2, it cannot be fitted to another concave block 2 or the concavo-convex block 4.
(Formation of screen part)
A plurality of concavo-convex blocks 4 can be fitted to a concave portion 8 formed in the peripheral portion of the bottom surface of the lower plate base 3 to form a pair of partitioning portions 9 to be self-supporting (FIG. 2). ). In this case, by selecting the number of the concavo-convex blocks 4 according to preference, the angle can be adjusted to a desired angle even when installed for desktop use. In FIG. 2, a structure in which five concavo-convex blocks 4 are overlapped and fitted is used.

  The block puzzle 20 according to the present invention is held in a state in which the convex portion 7 and the concave portion 8 of the structure such as the plate base 3, the concave block 2, the concave and convex block 4, and the concave micro block 1 are fitted. Yes. And since each component dimension is small, the compact block puzzle 20 can be comprised. In addition, since the cross sections of the convex portions 7 and the concave portions 8 are substantially rectangular, they do not rotate in the fitting axis direction after fitting.

  Further, since the concave block 2 and the concave / convex block 4 have a total of four concave portions 8 arranged in two rows and two columns, they fit with the convex portions 7 of the plate base 3 and the concave / convex block 4. After that, it is firmly fixed. Therefore, even if it is carried in a pocket or the like, each block does not come off from the plate base 3 and can be decorated in a state where it stands vertically on the wall surface or the like.

  On the other hand, since the plate bases 3 can be united by using the plurality of plate bases 3 and the concave block 2 or the concave and convex block 4 as the uniting block 10, the block puzzle 20 having no size limit can be obtained. Can be provided. Accordingly, a large seamless pattern can be formed.

  Furthermore, since the block puzzle 20 using the present invention has a small number of parts, it can be manufactured at low cost.

  In the present invention, a plurality of blocks printed with symbols such as letters, numbers, etc. on the top of the image, such as a picture, a photograph, etc. are fitted to the plate base, so that the picture pattern, the perpetual calendar, etc. It can be used for block puzzles that can be enjoyed.

DESCRIPTION OF SYMBOLS 1 Concave micro block 2 Concave block 3 Plate base 4 Concave and convex block 4a Concave and convex micro block 5 Magnet 6 Printing part 7 Convex part 8 Concave part 9 Partition part 10 Combined block 11 Combined part 20 Block puzzle

Claims (7)

In a block puzzle formed by fitting a plurality of blocks having concave portions having a substantially rectangular cross section on the bottom surface to a plate base having convex portions having a substantially rectangular cross section on the top surface,
The plate base has a two-stage structure in which the central portion occupying most of the top surface is one step higher than the surrounding four-side portions,
The block is a concave block having the concave portion formed in at least 2 rows and 2 columns on the bottom surface of the top surface is a flat surface,
The convex portion of the plate base and the concave portion of the concave block are fitted,
The convex portion formed in the four-sided portion adjacent to the united portion of one plate base and the convex portion formed in the four-sided portion adjacent to the combined portion of the other plate base, A block puzzle characterized in that a plurality of plate bases can be combined by fitting the concave portions of a concave block. In a block puzzle formed by fitting a plurality of blocks having concave portions having a substantially rectangular cross section on the bottom surface to a plate base having convex portions having a substantially rectangular cross section on the top surface,
The plate base has a two-stage structure in which the central portion occupying most of the top surface is one step higher than the surrounding four-side portions,
In the block,
The top surface is a flat surface, and a concave block having the concave portions formed in at least 2 rows and 2 columns on the bottom surface;
The top surface has the convex portions formed in at least 2 rows and 2 columns, and the bottom surface thereof has an uneven block having the concave portions formed in at least 2 rows and 2 columns,
The convex part of the plate base and the concave part of the concave block and the concave and convex block are fitted,
The convex part of the concave-convex block and the concave part of the concave-convex block and the concave block are fitted,
The convex portion formed in the four-sided portion adjacent to the united portion of one plate base and the convex portion formed in the four-sided portion adjacent to the combined portion of the other plate base, A block puzzle characterized in that a plurality of the plate bases can be combined by fitting the concave block or the concave portion of the concave-convex block. The plate base is
It has the recess in the four sides around the bottom,
The block puzzle according to claim 1, wherein the concave portion is fitted with the convex portion of the concave-convex block. In the block,
The top surface is flat, and the bottom surface has one concave portion,
The concave portion includes a concave minute block that fits with the convex portion of the plate base and the convex portion of the concave-convex block. Block puzzle. In the block,
The top surface has one convex portion, and the bottom surface has one concave portion,
The concave portion includes a concave-convex micro block that fits the convex portion of the plate base and the convex portion of the concave-convex block. Block puzzle. On the top surface of the concave block and the concave micro block,
Numbers, letters, a part of a picture pattern, etc. are printed, or those with a sticker on which these are printed are included. Item 6. The block puzzle according to item 4 or item 5. The block puzzle according to claim 6, wherein a perpetual calendar is created by using one or both of the plate base and the concave block or the concave micro block.

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