Sudoku Net

Abstract

When working on Sudoku puzzles with small numbers and squares, such as those found in books and magazines, it can be difficult to see, write, and erase, which can lead to physical and mental fatigue. Repeated use of pencils and erasers can also tear the pages, making it impossible to continue working on Sudoku puzzles from books and magazines. [Solution] By clipping this invention onto a clipboard along with a blank piece of paper, Sudoku squares of a size that are easy to see, write with a pencil, and erase with an eraser are created on the paper. By using this instead of the small numbers and squares on Sudoku pages in books and magazines, physical and mental fatigue can be reduced. Furthermore, because there is no need to write directly on the book or magazine with a pencil or erase with an eraser, the paper will not be torn or damaged.

Description

[Technical Field]

[0001] This invention is a net-shaped tool designed to be clipped onto a vertically or horizontally long clipboard to make it easier to write and erase answers to Sudoku puzzles. [Background technology]

[0002] Sudoku puzzles in books and magazines often have small numbers and squares that are hard to see, write with a pencil, or erase with an eraser. Repeated use of pencils and erasers can also cause the pages to tear. Summary of the Invention [Problem to be solved by the invention]

[0003] Sudoku puzzles with small numbers and squares can be difficult to see, write, and erase, which can lead to physical fatigue, such as eye fatigue, and mental fatigue, such as a lack of concentration. Furthermore, repeated use of pencils and erasers can reduce the durability of the paper, which can lead to tears and other issues, making it impossible to continue playing Sudoku puzzles in books and magazines. These two possibilities are problematic. [Means for solving the problem]

[0004] By placing this invention on top of a separate blank A4 size sheet of paper and inserting it into a vertical or horizontal A4 size clipboard, the net-shaped parts of this invention form blank spaces like Sudoku squares or memo areas that are easy to see, write on, and erase on the paper, thereby solving the problem. [Effects of the Invention]

[0005] It is expected that this will reduce the degree of physical and mental fatigue caused by difficulty in seeing, writing, and erasing. It is believed that Sudoku will become easier for the elderly to tackle.

[0006] Since separate sheets of paper such as blank paper are used, existing books and magazines will not be damaged, and they can be reused.

[0007] There is no need to write the Sudoku squares on a separate sheet of paper, and you can easily tackle the puzzle by simply copying down the numbers in the problem area. Also, since this invention is almost the same shape as an A4 size clipboard, it can be easily carried by clipping it into the clipboard.

[0008] If the paper is blank, it can be reused, even if it is the back of an advertisement or used paper that has only been printed on one side, so it can also be used as part of recycling. [Brief explanation of the drawings]

[0009] [Figure 1] This is a front view of the entire Sudoku net of the present invention. It is roughly the same shape as an A4-sized clipboard. It consists of an outer frame and a net (thick and thin). Furthermore, the present invention is made of a single flexible material and does not include any other parts. DETAILED DESCRIPTION OF THE INVENTION

[0010] The outer frame forms a ruled outer line that surrounds the entire square and the margins like a memo section on the paper. When using a vertical clipboard, the center of outer frame 1a is clipped to the clip part, and when using a horizontal clipboard, the center of outer frame 1c is clipped to the clip part.

[0011] The net (thick) forms 3x3 grid blocks on the paper and internal lines (thick) that represent margins such as memo areas.

[0012] The net (thin) forms internal lines (thin) that represent individual squares on the paper. [Example]

[0013] The orientation of the present invention is changed according to the type of clipboard to be used, and the present invention is clipped into the clip portion together with a separate sheet of paper such as a blank sheet of paper.

[0014] The numbers in the Sudoku puzzle section of a book, magazine, etc. are written into the Sudoku squares formed on a blank sheet of paper or the like by the outer frame or net-shaped portion of the present invention.

[0015] Use the blank space in the memo section as needed to solve the Sudoku puzzle. [Explanation of symbols]

[0016] 1a~1d outer frame 2a~2e Net (thick) 3a~31 Net (thin) 4 squares 5. Memo section margin

Claims

[Claim 1] It is a tool for enjoying Sudoku by inserting an A4-sized clipboard (either vertical or horizontal) together with a blank piece of paper of the same size, and filling in the numbers of the Sudoku puzzles. The tool is made of a sheet of flexible material roughly the same shape as an A4-sized clipboard, and its structure is broadly divided into a total of 81 openings arranged in 9 rows and 9 columns that resemble the squares of Sudoku formed by a net portion, blank areas that can be used as memo areas by the Sudoku solver, and an outer frame portion that is clipped to the clipboard.In order to further distinguish the 81 openings into 9 blocks each consisting of 3 x 3 squares vertically and horizontally, the thickness of the net portions that separate adjacent blocks vertically, horizontally, and horizontally is made thicker than the net portions that form the openings within each block, thereby forming a tool with a shape similar to that of Sudoku drawings in magazines and books.

Images