JP2020130641A - Puzzle generation device, puzzle generation method and puzzle generation program - Google Patents

Abstract

To provide a technique capable of properly generating a problem of a drawing logic in which a picture of a two-dimensional code is a solution.SOLUTION: A puzzle generation device of one aspect of the invention is configured to: divide a two-dimensional code into a plurality of partial areas; generates a problem of a drawing logic for each partial area so that a picture on a corresponding partial area is a solution; solve the problem generated for each partial area; then on the basis of a solving result, determine whether or not there is another solution for the generated problem; and if there is the other solution for the generated problem, apply an answer to some cells on the problem so that a true solution is determined uniquely.SELECTED DRAWING: Figure 1

Description

The present invention relates to a puzzle generation device, a puzzle generation method, and a puzzle generation program.

Conventionally, nonogram is known as one of the pencil puzzles. Nonogram is a puzzle composed of a plurality of cells arranged in a matrix and a numerical notation indicating the number of cells to be continuously filled in each row and each column, and fills the cells according to the number shown in the numerical notation. By doing so, the answer picture can be highlighted. Nonogram is also called Noguramu, Illustration Logic, Picture Crossword (Picross), etc.

Patent Document 1 proposes a system that generates a drawing logic that uses a two-dimensional code such as a QR code (registered trademark) as an answer. In this system, the two-dimensional code can be obtained by solving the given drawing logic. In the two-dimensional code, for example, a URL (Uniform Resource Locator) for providing contents such as image data and music data is stored. Therefore, according to this system, only the player who solved the nonogram can provide the service of acquiring the data from the URL.

Japanese Unexamined Patent Publication No. 2004-097366

The inventor of the present invention has found that a problem as shown in FIG. 1 occurs when a drawing logic as an answer is generated by a picture of a two-dimensional code as described above. FIG. 1 is a diagram for explaining a problem of the conventional technique. FIG. 1 shows an example of relatively simple drawing logic. The nonogram 900 is composed of four cells 901 arranged in a 2 × 2 matrix and a number notation 902 indicating the number of cells to be continuously filled.

There are two answers (910, 920) in this nonogram 900. In the example of FIG. 1, black cells represent filled cells, and white cells represent unfilled cells. Since the number of filled cells in the two answers (910 and 920) both match the number shown in the number notation 902, each is a correct answer. In other words, in nonogram, there may be an answer other than the true answer, depending on the number shown in the number notation.

For example, when a general picture such as a landscape, a character, or a character is the answer, even if there is an answer other than the true answer, the player can answer the true answer based on the meaning of the picture that is gradually emerging. Answers other than can be excluded. However, the two-dimensional code is generated by encoding information, and basically, it does not become a meaningful picture for human beings. Therefore, when the picture of the two-dimensional code is the answer, the player cannot exclude the answer other than the true answer, and there is a problem that the true answer may not be reached.

The present invention, on the one hand, has been made in view of such circumstances, and an object of the present invention is to provide a technique capable of appropriately generating a problem of drawing logic in which a picture of a two-dimensional code is an answer. Is.

The present invention employs the following configuration in order to solve the above-mentioned problems.

That is, the puzzle generation device according to one aspect of the present invention includes a code acquisition unit that acquires a two-dimensional code, and a plurality of cells that divide the acquired two-dimensional code into a plurality of subregions and arrange them in a matrix. In addition, it is a problem of drawing logic composed of numerical notation indicating the number of cells to be continuously filled in each row and each column, so that the picture of the corresponding partial area of the acquired two-dimensional code becomes the answer. A problem generation unit that generates a problem of drawing logic for which the number shown in the numerical notation is determined for each partial area, and a cell is filled according to the number shown in the numerical notation to generate each partial area. There is a problem-solving unit that solves the problem, and another solution in which a picture other than the picture of the corresponding subregion of the two-dimensional code appears in the generated problem based on the result of solving the problem. The multiple answer determination unit for determining whether or not the problem and the answer in which the picture of the corresponding subregion of the acquired two-dimensional code appears when the generated problem has the other answer are uniquely determined. It is provided with a hint giving unit that gives an answer to some cells of the problem.

The puzzle generation device according to the configuration divides the acquired two-dimensional code into a plurality of subregions, and then solves the problem of the drawing logic for each subregion so that the picture of the corresponding subregion of the two-dimensional code becomes the answer. Generate in. By dividing into each of these subregions, the probability that a plurality of answers will occur in the problem can be reduced. In addition, the puzzle generator according to the configuration solves each problem generated for each subregion, and whether or not there is another solution in which a picture other than the picture of the corresponding subregion of the two-dimensional code emerges. To judge. Then, if there are other answers, the puzzle generator gives the answers to some cells of the question so that the answer in which the picture of the corresponding subregion of the two-dimensional code appears is uniquely determined. This allows you to exclude other answers from the generated questions. Therefore, according to the puzzle generator according to the configuration, when the two-dimensional code is divided into a plurality of subregions, the possibility of multiple solutions being generated is reduced, and the multiple solutions are still generated. Can give some of the true answers as hints so that no other answer holds. Therefore, it is possible to appropriately generate a nonogram problem in which a picture of a two-dimensional code is the answer. The type of the two-dimensional code does not have to be particularly limited, and may be appropriately selected according to the embodiment. For example, the two-dimensional code may be a matrix type such as a QR code (registered trademark) or a stack type such as PDF417.

In the puzzle generation device according to the one aspect, the hint giving unit may give an answer to some cells existing in the central region of the matrix in the problem. The central region of the matrix has a higher degree of influence on the arrangement of cells to be continuously filled than the end region. Therefore, by giving an answer to a part of the central area, other answers can be efficiently excluded. Therefore, according to the configuration, answers other than the true answer can be appropriately excluded.

In the puzzle generator according to the above aspect, the two-dimensional code is a private key that is paired with the public key in the public key cryptosystem and can identify the public key, and is an electronic cryptocurrency based on the public key cryptosystem. The private key used for the electronic signature of the transaction whose withdrawal source is the public address generated from the public key, which is the public address of the remittance destination and the withdrawal source in the above. According to this configuration, a player who has solved all of the nonograms generated for each subregion can be given a private key that can be used for digital signatures of transactions in electronic cryptocurrencies.

As another aspect of the puzzle generator according to each of the above modes, one aspect of the present invention may be an information processing method or a program that realizes each of the above configurations. It may be a storage medium that stores various programs and can be read by a computer or the like. Here, the storage medium that can be read by a computer or the like is a medium that stores information such as a program by electrical, magnetic, optical, mechanical, or chemical action.

For example, the puzzle generation method according to one aspect of the present invention includes a step in which a computer acquires a two-dimensional code, a step in which the acquired two-dimensional code is divided into a plurality of subregions, and a plurality of steps arranged in a matrix. It is a problem of drawing logic composed of numerical notation indicating the number of cells to be filled continuously in each row and each column, and the picture of the corresponding partial area of the obtained two-dimensional code is the answer. By the step of generating the problem of the drawing logic in which the number shown in the numerical notation is determined for each partial area and the cell is filled according to the number shown in the numerical notation, for each partial area. Based on the steps to solve the generated problem and the result of solving the problem, is there any other solution in the generated problem in which a picture other than the picture of the corresponding subregion of the two-dimensional code appears? One of the above problems so that the step of determining whether or not the problem and the answer in which the picture of the corresponding subregion of the acquired two-dimensional code appears when the other answer exists in the generated problem are uniquely determined. It is an information processing method that executes a step of giving an answer to a cell of a department.

Further, for example, the puzzle generation program according to one aspect of the present invention is arranged in a matrix on a computer, a step of acquiring a two-dimensional code and a step of dividing the acquired two-dimensional code into a plurality of subregions. It is a problem of drawing logic composed of a plurality of cells and a numerical notation indicating the number of cells to be continuously filled in each row and each column, and is a picture of a corresponding partial area of the acquired two-dimensional code. By generating a problem of nonogram for each sub-region in which the number shown in the numerical notation is determined so that is the answer, and by filling the cell according to the number shown in the numerical notation, the sub-region There are steps to solve the problem generated for each, and other solutions in which a picture other than the picture of the corresponding subregion of the two-dimensional code appears in the generated problem based on the result of solving the problem. The question is determined so that the step of determining whether or not to do so and the answer in which the picture of the corresponding subregion of the acquired two-dimensional code appears when the generated question has the other answer are uniquely determined. It is a program to execute a step that gives an answer to some cells of.

According to the present invention, it is possible to appropriately generate a problem of drawing logic in which a picture of a two-dimensional code is an answer.

FIG. 1 is a diagram for explaining a problem of the prior art. FIG. 2 schematically illustrates an example of a situation in which the present invention is applied. FIG. 3 schematically illustrates an example of the hardware configuration of the puzzle generator according to the embodiment. FIG. 4 schematically illustrates an example of the software configuration of the puzzle generator according to the embodiment. FIG. 5 illustrates an example of the processing procedure of the puzzle generator according to the embodiment.

Hereinafter, embodiments according to one aspect of the present invention (hereinafter, also referred to as “the present embodiment”) will be described with reference to the drawings. However, the embodiments described below are merely examples of the present invention in all respects. Needless to say, various improvements and modifications can be made without departing from the scope of the present invention. That is, in carrying out the present invention, a specific configuration according to the embodiment may be appropriately adopted. The data appearing in the present embodiment are described in natural language, but more specifically, the data is specified in a pseudo language, commands, parameters, machine language, etc. that can be recognized by a computer.

§1 Application example First, an example of a situation in which the present invention is applied will be described with reference to FIG. FIG. 2 schematically illustrates an example of an application scene of the puzzle generation device 1 according to the present embodiment. As shown in FIG. 2, the puzzle generation device 1 according to the present embodiment is a computer configured to generate the problem 50 of the drawing logic from the given two-dimensional code 40.

Specifically, the puzzle generation device 1 acquires the two-dimensional code 40 and divides the acquired two-dimensional code 40 into a plurality of subregions 41. Subsequently, the puzzle generation device 1 generates a plurality of problems 50 of the drawing logic corresponding to each sub-region 41. Each problem 50 of the nonogram is composed of a plurality of cells 51 arranged in a matrix and a numerical notation 52 indicating the number of cells 51 to be continuously filled in each row and each column. The puzzle generator 1 solves the problem 50 of the drawing logic in which the number shown in the numerical notation 52 is determined so that the picture of the corresponding partial area 41 of the acquired two-dimensional code 40 becomes the answer for each partial area 41. Generate.

Next, the puzzle generation device 1 solves each problem 50 generated for each partial area 41 by filling the cells 51 according to the numbers shown in the number notation 52. Then, the puzzle generation device 1 has another solution in which a picture other than the picture of the corresponding partial area 41 of the two-dimensional code 40 appears in each generated problem 50 based on the result of solving each problem 50. Judge whether or not. If there is another answer in the generated question 50, the puzzle generator 1 is a part of the question 50 so that the answer in which the picture of the corresponding subregion 41 of the acquired two-dimensional code 40 appears is uniquely determined. Give the answer to cell 51.

As described above, in the present embodiment, by dividing the acquired two-dimensional code 40 into a plurality of subregions 41, the probability that an answer other than the true answer will occur in the generated question 50 is reduced. Can be done. In addition, if another answer still occurs, a part of the true answer can be given as a hint so that the other answer does not hold. Therefore, according to the puzzle generation device 1 according to the present embodiment, it is possible to appropriately generate a plurality of problems 50 of the drawing logic in which the picture of the two-dimensional code 40 is the answer.

In the example of FIG. 2, the two-dimensional code 40 is divided into four subregions 41, and four problems 50 corresponding to each subregion 41 are generated. However, the number of subregions 41 and the number of problems 50 may not be limited to such examples, respectively. Further, the method for dividing the two-dimensional code 40 does not have to be particularly limited, and may be appropriately determined according to the embodiment. The two-dimensional code 40 may be divided so that the dimensions of all the partial regions 41 match, or the dimensions of at least one partial region 41 may be divided so as to be different from the dimensions of the other partial regions 41. Good. Similarly, the number of cells 51 in the matrix of each question 50 may or may not match.

§2 Configuration example [Hardware configuration]
Next, an example of the hardware configuration of the puzzle generation device 1 according to the present embodiment will be described with reference to FIG. FIG. 3 schematically illustrates an example of the hardware configuration of the puzzle generator 1 according to the present embodiment.

As shown in FIG. 3, the puzzle generation device 1 according to the present embodiment is a computer in which a control unit 11, a storage unit 12, a communication interface 13, an input device 14, a display device 15, and a drive 16 are electrically connected. is there. In FIG. 3, the communication interface is described as "communication I / F".

The control unit 11 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like, which are hardware processors, and is configured to execute information processing based on a program and various data. To. The storage unit 12 is an example of a memory, and is composed of, for example, an auxiliary storage device such as a hard disk drive or a solid state drive. In the present embodiment, the storage unit 12 stores various information such as the puzzle generation program 81.

The puzzle generation program 81 is a program for causing the puzzle generation device 1 to perform information processing (FIG. 5 described later) for generating the problem 50 of the drawing logic from the two-dimensional code 40. The puzzle generation program 81 includes a series of instructions for the information processing. Details will be described later.

The communication interface 13 is, for example, a wired LAN (Local Area Network) module, a wireless LAN module, or the like, and is an interface for performing wired or wireless communication via a network. The puzzle generation device 1 uses this communication interface 13 to perform data communication with another information processing device via a network, obtain a two-dimensional code 40, and provide a problem 50 of the generated drawing logic. Can be done. The type of network may be appropriately selected from, for example, the Internet, a wireless communication network, a mobile communication network, a telephone network, a dedicated network, and the like.

The input device 14 is, for example, a device for inputting a mouse, a keyboard, or the like. The display device 15 is an example of an output device, for example, a display. The operator can operate the puzzle generation device 1 via the input device 14 and the display device 15. The display device 15 may be a touch panel display. In this case, the input device 14 may be omitted.

The drive 16 is, for example, a CD drive, a DVD drive, or the like, and is a drive device for reading a program stored in the storage medium 91. The type of the drive 16 may be appropriately selected according to the type of the storage medium 91. The puzzle generation program 81 may be stored in the storage medium 91.

The storage medium 91 stores the information of the program or the like by electrical, magnetic, optical, mechanical or chemical action so that the information of the program or the like recorded by the computer or other device or machine can be read. It is a medium to do. The puzzle generation device 1 may acquire the puzzle generation program 81 from the storage medium 91.

Here, FIG. 3 illustrates a disc-type storage medium such as a CD or DVD as an example of the storage medium 91. However, the type of the storage medium 91 is not limited to the disc type, and may be other than the disc type. Examples of storage media other than the disk type include semiconductor memories such as flash memories.

Regarding the specific hardware configuration of the puzzle generation device 1, the components can be omitted, replaced, or added as appropriate according to the embodiment. For example, the control unit 11 may include a plurality of hardware processors. The hardware processor may be composed of a microprocessor or the like. The storage unit 12 may be composed of a RAM and a ROM included in the control unit 11. At least one of the communication interface 13, the input device 14, the display device 15, and the drive 16 may be omitted. The puzzle generation device 1 may further include an output device other than the display device 15 such as a speaker. The puzzle generator 1 may be composed of a plurality of computers. In this case, the hardware configurations of the computers may or may not match. Further, the puzzle generator 1 may be a general-purpose information processing device such as a desktop PC (Personal Computer) or a tablet PC, a general-purpose server device, or the like, in addition to an information processing device designed exclusively for the provided service. ..

[Software configuration]
Next, an example of the software configuration of the puzzle generation device 1 according to the present embodiment will be described with reference to FIG. FIG. 4 schematically illustrates an example of the software configuration of the puzzle generation device 1 according to the present embodiment.

The control unit 11 of the puzzle generation device 1 expands the puzzle generation program 81 stored in the storage unit 12 into the RAM. Then, the control unit 11 interprets and executes the puzzle generation program 81 expanded in the RAM by the CPU to control each component. As a result, as shown in FIG. 4, the puzzle generation device 1 according to the present embodiment includes a code acquisition unit 111, a question generation unit 112, a question answer unit 113, a multiple answer determination unit 114, and a hint assignment unit 115 as software modules. Operates as a computer. That is, in the present embodiment, each software module of the puzzle generation device 1 is realized by the control unit 11 (CPU).

The code acquisition unit 111 acquires the two-dimensional code 40. The problem generation unit 112 divides the acquired two-dimensional code 40 into a plurality of subregions 41. Then, the problem generation unit 112 is a problem 50 of the drawing logic composed of a plurality of cells 51 arranged in the matrix and a numerical notation 52 indicating the number of cells 51 to be continuously filled in each row and each column. Then, the problem 50 of the drawing logic in which the number shown in the numerical notation 52 is determined so that the picture of the corresponding sub-region 41 of the acquired two-dimensional code 40 becomes the answer is generated for each sub-region 41.

The question-and-answer unit 113 solves each question 50 generated for each sub-region 41 by filling the cell 51 according to the number shown in the number notation 52. Based on the result of solving each problem 50, the multiple solution determination unit 114 determines whether or not the generated problem 50 has another answer in which a picture other than the picture of the corresponding subregion 41 of the two-dimensional code 40 appears. Is determined. The hint giving unit 115 is a part of the question 50 so that when another answer exists in the generated question 50, the answer in which the picture of the corresponding subregion 41 of the acquired two-dimensional code 40 appears is uniquely determined. Give an answer to cell 51 of. In the present embodiment, the hint giving unit 115 can give an answer to some cells 51 existing in the central region 55 of the matrix in question 50.

Each software module of the puzzle generator 1 will be described in detail in an operation example described later. In this embodiment, an example in which each software module of the puzzle generator 1 is realized by a general-purpose CPU is described. However, some or all of the above software modules may be implemented by one or more dedicated hardware processors. Further, regarding the software configuration of the puzzle generator 1, software modules may be omitted, replaced, or added as appropriate according to the embodiment.

§3 Operation example Next, an operation example of the puzzle generator 1 will be described with reference to FIG. FIG. 5 illustrates an example of the processing procedure of the puzzle generation device 1 according to the present embodiment. The processing procedure of the puzzle generation device 1 described below is an example of the "puzzle generation method" of the present invention. However, the processing procedure described below is only an example, and each processing may be changed as much as possible. Further, with respect to the processing procedure described below, steps can be omitted, replaced, and added as appropriate according to the embodiment.

(Step S101)
In step S101, the control unit 11 operates as the code acquisition unit 111 to acquire the two-dimensional code 40. The control unit 11 may acquire the two-dimensional code 40 by generating the two-dimensional code 40. Alternatively, the control unit 11 may acquire the two-dimensional code 40 generated by another computer via, for example, a network, a storage medium 91, or the like. A known coding method may be used to generate the two-dimensional code 40. The data format of the two-dimensional code 40 does not have to be particularly limited, and may be appropriately selected depending on the embodiment. For example, the two-dimensional code 40 may be obtained as image data such as JPEG, GIF, PNG, and bitmap, or may be obtained as data of a structured document such as HTML and CSS.

The type of the two-dimensional code 40 and the information stored in the two-dimensional code 40 do not have to be particularly limited, and may be appropriately selected according to the embodiment. For example, the two-dimensional code 40 may be a matrix type such as a QR code (registered trademark) or a stack type such as PDF417. Further, the information stored in the two-dimensional code 40 is, for example, a private key that is paired with the public key in the public key cryptosystem and can identify the public key, and is in an electronic cryptocurrency based on the public key cryptosystem. It may be a public address that is a remittance destination and a withdrawal source, and may be a private key used for electronic signature of a transaction whose withdrawal source is the public address generated from the public key.

The electronic cryptocurrency is a virtual currency that trades using an electronic signature, and is, for example, Bitcoin, Litecoin, Monacoin, Peercoin, Namecoin, Quarkcoin, Mastercoin, Ripplecoin, Megacoin, and the like. In electronic cryptocurrency based on public key cryptography, a key pair of public key and private key is issued. In addition, a public address is generated from the issued public key. This public address may be likened to a bank account number and is used as an address indicating the remittance destination and withdrawal source of the electronic cryptocurrency. On the other hand, the private key is used for digital signature of a transaction whose withdrawal source is a public address.

Transactions of electronic cryptocurrencies are carried out between two nodes in a P2P (Peer-to-Peer) network, and the transaction information is broadcast and shared to each node in the P2P network. As a result, a transaction history database, which is a decentralized database, is formed on the P2P network, and the transaction history of the electronic cryptocurrency is stored. The two-dimensional code 40 may store a private key that can be used for digital signatures of such transactions of electronic cryptocurrencies. When the two-dimensional code 40 is acquired, the control unit 11 proceeds to the next step S102.

(Step S102)
In step S102, the control unit 11 operates as the problem generation unit 112 and divides the acquired two-dimensional code 40 into a plurality of subregions 41. The number of partial regions 41 to be generated and the dimensions of each partial region 41 may not be particularly limited, and may be appropriately determined according to the embodiment. The dimensions of all the partial regions 41 may be the same, or at least some of the partial regions 41 may be different from the dimensions of the other partial regions 41. The control unit 11 may generate a plurality of subregions 41 having uniform dimensions by dividing the two-dimensional code 40 into equal parts, for example, dividing into four equal parts, nine equal parts, and the like. When the two-dimensional code 40 is divided into a plurality of subregions 41, the control unit 11 proceeds to the next step S103.

(Step S103)
In step S103, the control unit 11 operates as the problem generation unit 112, and the control unit 11 determines the number shown in the number notation 52 so that the picture of the corresponding partial area 41 becomes the answer. Problem 50 is generated for each subregion 41. As a result, the control unit 11 generates a plurality of problems 50 of the drawing logic corresponding to each of the generated subregions 41.

The two-dimensional code 40 is composed of a plurality of cells arranged in a matrix, and the plurality of cells include a cell of a code portion and a blank cell. Therefore, as an example of the generation method, the control unit 11 generates a plurality of matrices of cells 51 corresponding to each sub-region 41 of the two-dimensional code 40, and puts each cell of each sub-region 41 into each cell 51 of the matrix. It may be associated. Next, in each matrix, the control unit 11 may set the cell 51 that fills the cell of the code portion, whereas the control unit 11 may set the cell that does not fill the blank cell. Then, the control unit 11 determines the number shown in the number notation 52 by counting the number of cells set in the cells to be filled along each row and each column in each matrix. As a result, the control unit 11 can generate a problem 50 of the drawing logic in which the number shown in the numerical notation 52 is determined so that the picture of the corresponding subregion 41 becomes the answer for each subregion 41.

The method of generating the problem 50 of the drawing logic corresponding to each partial region 41 does not have to be limited to such an example, and may be appropriately determined according to the embodiment. As a method for generating each problem 50, a known method for generating a nonogram problem from a desired picture may be adopted. When the problem 50 of the drawing logic is generated for each sub-region 41, the control unit 11 proceeds to the next step S104.

(Step S104)
In step S104, the control unit 11 operates as the question answering unit 113, and solves each problem 50 generated for each partial area 41 by filling the cell 51 according to the number shown in the number notation 52.

The algorithm for solving each problem 50 does not have to be particularly limited, and may be appropriately set according to the embodiment. In nonogram, various formulas for solving are known. As an example of a standard, there is a case where the answer is uniquely determined in a column or row. The cases where the answer is uniquely determined are the case where the number shown in the number notation 52 is "0", the case where the number shown in the number notation 52 matches the number of cells 51 in the column or row, and the case where the number notation 52 is defined. When a plurality of numbers are shown, assuming that one unfilled cell 51 is placed between a group of cells 51 that are continuously filled according to each number, the sum of the filled cell 51 and the unfilled cell 51. Is the case that matches the number of cells 51 in the column or row. In such a case, the cell 51 to be filled or not to be filled can be uniquely determined in the column or row. Further, as an example of another standard, if there are a plurality of arrangement patterns of cells 51 to be filled in a column or row, and there are cells 51 to be filled in common in all the arrangement patterns, the cells 51 are assumed to be filled. Can be decided.

An algorithm for solving the nonogram may be set based on these formulas. Then, the control unit 11 may solve each problem 50 generated for each sub-region 41 by using the set algorithm. When each problem 50 generated for each partial region 41 is solved, the control unit 11 proceeds to the next step S105.

(Step S105)
In step S105, the control unit 11 operates as the multiple solution determination unit 114, and based on the result of solving each problem 50, the generated problem 50 is given a picture other than the picture of the corresponding partial area 41 of the two-dimensional code 40. Determine if there is another answer in which the picture appears. When there are a plurality of answer patterns that match the numbers shown in the number notation 52, the generated question 50 has other answers in which a picture other than the picture of the corresponding subregion 41 appears. Therefore, in this case, the control unit 11 determines that the generated question 50 has another answer. On the other hand, if the answer pattern matching the number shown in the number notation 52 is unique, there is no other answer in the generated question 50. Therefore, in this case, the control unit 11 determines that there is no other answer to the generated question 50. When the determination for each problem 50 is completed, the control unit 11 proceeds to the next step S106.

(Step S106)
In step S106, the control unit 11 determines the branch destination of the process according to the determination result in step S105. If it is determined in step S105 that at least one of the generated problems 50 has another answer, the control unit 11 proceeds to the next step S107. On the other hand, if it is determined in step S105 that there are no other answers to all the questions 50, the control unit 11 omits the process of step S107 and ends the process related to this operation example.

(Step S107)
In step S107, the control unit 11 operates as the hint giving unit 115, and when there is another answer to the generated question 50, the answer in which the picture of the corresponding partial area 41 of the acquired two-dimensional code 40 appears. Gives an answer to some cells 51 of question 50 so that That is, the control unit 11 gives an answer to some cells 51 of the question 50 so that there is no other answer.

Giving an answer may include showing cells 51 to be filled and showing cells 51 not to be filled. The number of cells 51 giving an answer may not be particularly limited and may be appropriately set according to the embodiment. For example, the control unit 11 tentatively gives an answer to one or a plurality of cells 51, and then solves the target problem 50 again. The method of solving the problem 50 may be the same as in step S104. As a result, when there is no other answer, the control unit 11 determines the cell 51 that gives the answer as the cell 51 that gives the answer. On the other hand, when another answer exists, the control unit 11 temporarily increases the number of cells 51 that give an answer, and repeats the above process until there is no other answer. As a result, the control unit 11 can determine the cell 51 that gives an answer so that no other answer exists.

The location of the cell 51 that gives the answer may be determined as appropriate. The central region 55 of the matrix has a higher degree of influence on the arrangement of cells 51 to be continuously filled than the end region. Therefore, the control unit 11 may give an answer to some cells 51 existing in the central region 55 of the matrix in the problem 50. This makes it possible to appropriately exclude answers other than the true answer. The central region 55 is located in the center of the matrix and includes at least one cell 51. The central region 55 does not have to be completely centered in the matrix and may be slightly biased in at least one of the row and column directions. When an answer is given to some cells 51 so that no other answer exists, the control unit 11 ends the process related to this operation example.

Each problem 50 generated by the series of processes according to this operation example may be appropriately provided to the player. For example, each question 50 may be posted on a web page or printed on a paper medium or the like. Further, for example, each problem 50 may be transmitted to the player by e-mail or the like. The player can acquire the two-dimensional code 40 by solving all the problems 50 set for the two-dimensional code 40. The two-dimensional code 40 may store a private key used for an electronic signature in an electronic cryptographic currency based on a public key cryptosystem. In this case, the private key can be provided only to the player who has solved all the problems 50. The player can use the acquired private key to perform a transaction using the public address generated from the paired public key as the withdrawal source.

In addition, when each question 50 is provided on a web page, if the answer two-dimensional code 40 is given as image data, the player who solved each question 50 shows the image data indicating the answer two-dimensional code 40. May be extracted from the web page and spread. Therefore, when each problem 50 is provided on a web page, it is preferable that the two-dimensional code 40 is given as data of a structured document such as a style sheet (CSS) or HTML that is difficult to spread. ..

[Feature]
As described above, in the present embodiment, by dividing the acquired two-dimensional code 40 into a plurality of subregions 41 by the process of step S102, an answer other than the true answer is generated in the generated question 50. The probability of doing so can be reduced. In addition, if another answer still occurs, a part of the true answer can be given as a hint by the process of step S107 so that the other answer is not established. Therefore, according to the present embodiment, it is possible to appropriately generate a plurality of problems 50 of the drawing logic in which the picture of the two-dimensional code 40 is the answer.

§4 Modifications Although the embodiments of the present invention have been described in detail above, the above description is merely an example of the present invention in all respects. Needless to say, various improvements and modifications can be made without departing from the scope of the present invention. For example, the following changes can be made. In the following, the same reference numerals are used for the same components as those in the above embodiment, and the same points as in the above embodiment are appropriately omitted. The following modification S can be combined as appropriate.

In the above embodiment, the two-dimensional code 40 may store a private key used for an electronic signature in an electronic cryptographic currency based on a public key cryptosystem. However, the information stored in the two-dimensional code 40 does not have to be limited to such an example. The two-dimensional code 40 may store all kinds of information. For example, the two-dimensional code 40 may store a URL for providing contents such as image data and music data. Further, for example, the two-dimensional code 40 may store information itself such as a gift code and a message to be provided to the target person.

Further, in the above embodiment, in step S107, the control unit 11 may give an answer to some cells 51 existing in the central region 55 of the matrix in the problem 50. However, the place to give the answer does not have to be limited to such an example. For example, the control unit 11 may give an answer to some cells 51 existing in the end region of the matrix.

1 ... Puzzle generator,
11 ... Control unit, 12 ... Storage unit, 13 ... Communication interface,
14 ... Input device, 15 ... Display device, 16 ... Drive,
111 ... Code acquisition unit, 112 ... Problem generation unit,
113 ... Question answer section, 114 ... Multiple answer judgment section,
115 ... Hint giving part,
40 ... 2D code, 41 ... partial area,
50 ... Problem (of nonogram),
51 ... cell, 52 ... number notation,
81 ... puzzle generation program, 91 ... storage medium

Claims (5)

A code acquisition unit that acquires a two-dimensional code,
A nonogram composed of a plurality of cells arranged in a matrix by dividing the acquired two-dimensional code into a plurality of subregions, and a numerical notation indicating the number of cells to be continuously filled in each row and each column. The problem of generating a nonogram problem for each sub-region in which the number shown in the numerical notation is determined so that the picture of the corresponding sub-region of the acquired two-dimensional code is the answer. With the generator
A problem-solving unit that solves the problem generated for each partial area by filling the cell according to the number shown in the number notation.
Based on the result of solving the problem, the multiple solution determination unit that determines whether or not the generated problem has another answer in which a picture other than the picture of the corresponding subregion of the two-dimensional code appears. ,
If the generated question has the other answer, a hint to give an answer to some cells of the question so that the answer in which the picture of the corresponding subregion of the obtained two-dimensional code appears is uniquely determined. Granting part and
To prepare
Puzzle generator. The hint giver gives an answer to some cells existing in the central region of the matrix in the problem.
The puzzle generator according to claim 1. The two-dimensional code is a public key that is paired with the public key in the public key cryptosystem and can identify the public key, and is a public destination and a withdrawal source in the electronic cryptocurrency based on the public key cryptosystem. Stores the private key, which is the address and is used for the electronic signature of the transaction whose withdrawal source is the public address generated from the public key.
The puzzle generator according to claim 1 or 2. The computer
Steps to get the 2D code and
A step of dividing the acquired two-dimensional code into a plurality of subregions, and
It is a problem of drawing logic composed of a plurality of cells arranged in a matrix and a numerical notation indicating the number of cells to be continuously filled in each row and each column, and corresponds to the obtained two-dimensional code. A step to generate a nonogram problem for each sub-region in which the number shown in the number notation is determined so that the picture of the sub-region is the answer.
A step of solving the problem generated for each subregion by filling the cell according to the number shown in the number notation.
Based on the result of solving the problem, a step of determining whether or not there is another solution in the generated problem in which a picture other than the picture of the corresponding subregion of the two-dimensional code appears.
When the other answer exists in the generated question, a step of giving an answer to some cells of the question so that the answer in which the picture of the corresponding subregion of the acquired two-dimensional code appears is uniquely determined. When,
To execute,
How to generate a puzzle. On the computer
Steps to get the 2D code and
A step of dividing the acquired two-dimensional code into a plurality of subregions, and
It is a problem of drawing logic composed of a plurality of cells arranged in a matrix and a numerical notation indicating the number of cells to be continuously filled in each row and each column, and corresponds to the obtained two-dimensional code. A step to generate a nonogram problem for each sub-region in which the number shown in the number notation is determined so that the picture of the sub-region is the answer.
A step of solving the problem generated for each subregion by filling the cell according to the number shown in the number notation.
Based on the result of solving the problem, a step of determining whether or not there is another solution in the generated problem in which a picture other than the picture of the corresponding subregion of the two-dimensional code appears.
When the other answer exists in the generated question, a step of giving an answer to some cells of the question so that the answer in which the picture of the corresponding subregion of the acquired two-dimensional code appears is uniquely determined. When,
To execute,
Puzzle generation program.