In this puzzle, pairs of numbers are arranged in square cells separated like a grid, and the paths connecting the paired number cells do not intersect each other and all paths are complete. It is a puzzle that is created to fill the squares.
1) Create a puzzle
Tap the "Create" button on the screen. There are three ways to create a question: "automatic questioning", "input questioning" and "pattern questioning".
* "Automatic question" automatically creates a puzzle when you tap the "Create" button when nothing is displayed on the board. If necessary, set the number of vertical and horizontal squares and the number of number pairs before creation. The number of pairs is set with the "UP" and "DOWN" buttons at the top of the screen, and the number of squares is selected from three buttons: 5x5, 7x7, and 9x9. Creating a puzzle takes time as the total number of squares increases. In that case, tap the "Cancel" button (same as "Create") and try again. When you finish creating, the specified number of number pairs will be displayed on the board and you will be in answer mode.
* "Input questions" create puzzles by manually entering pairs of numbers on the board. As a procedure, before tapping the "Create" button, tap any square on the screen once (the background color of the tapped square changes from white to light blue). This allows you to enter a number in that square using the number buttons at the bottom of the screen. Similarly, enter the same paired number in another square. Repeat this operation for several number pairs to create a puzzle. To correct a number, overwrite another number (delete is the "B" button). The "<" (undo) and ">" (redo) buttons are also available. After completing the question, tap the "Create" button to automatically verify whether or not there is an answer, then enter the answer mode. However, if the verification takes a long time, please tap the "Cancel" button (same as the "Create" button). In this case, the verification will be in the answer mode without completing the verification.
* "Pattern question" creates a puzzle by actually drawing a path on the board. As a procedure, before tapping the "Create" button, tap one of the squares where the pair number is to be placed twice in a row (at this time, the background color of that square changes from white → light blue → dark blue). Tap twice in succession only on the two squares that are the starting point and the ending point for arranging a pair of numbers. ) to create a route. At this time, a red connecting line is drawn between the tapped squares. Routes are created to extend vertically and horizontally, and cannot be extended diagonally. Use the "<" (undo) and ">" (redo) buttons to correct the route. A series of operations from this starting point to the end point is performed for the number of pairs. After filling all the squares on the board with all paths, tap the "Create" button. Create a puzzle in which the same number is placed in the starting and ending squares of each route. When you finish creating, it will be in answer mode.
2) Solve the puzzle
In answer mode, when you tap a number square, the color of the square with the same number that pairs with that square changes to dark blue. Create a path by tapping a series of squares one after another so as to connect pairs of squares from those squares. The squares in the middle of the path are colored light blue and red connecting lines are drawn. Use the "<" (undo) and ">" (redo) buttons to correct the route. When creating one pair of routes, you cannot create another route. Also, you cannot cross other paths, branch off, or connect different numbers with paths. In addition, the number of squares and the number of links during route creation are displayed in the comment line on the board. Fill all squares on the board with paths that connect all number pairs without gaps.
There are "Next Candidate" and "Next Answer" buttons to support the answer. The "Next Candidate" button will color the squares of the number pair of the next possible answer, and display the number of squares and the number of links on the comment line on the board. Also, the "next answer" button creates and displays the next candidate's answer path. At this time, if a route different from the correct route is created, it is deleted. However, both of these buttons are not available if the answer verification is incomplete.
1) Create a puzzle
Tap the "Create" button on the screen. There are three ways to create a question: "automatic questioning", "input questioning" and "pattern questioning".
* "Automatic question" automatically creates a puzzle when you tap the "Create" button when nothing is displayed on the board. If necessary, set the number of vertical and horizontal squares and the number of number pairs before creation. The number of pairs is set with the "UP" and "DOWN" buttons at the top of the screen, and the number of squares is selected from three buttons: 5x5, 7x7, and 9x9. Creating a puzzle takes time as the total number of squares increases. In that case, tap the "Cancel" button (same as "Create") and try again. When you finish creating, the specified number of number pairs will be displayed on the board and you will be in answer mode.
* "Input questions" create puzzles by manually entering pairs of numbers on the board. As a procedure, before tapping the "Create" button, tap any square on the screen once (the background color of the tapped square changes from white to light blue). This allows you to enter a number in that square using the number buttons at the bottom of the screen. Similarly, enter the same paired number in another square. Repeat this operation for several number pairs to create a puzzle. To correct a number, overwrite another number (delete is the "B" button). The "<" (undo) and ">" (redo) buttons are also available. After completing the question, tap the "Create" button to automatically verify whether or not there is an answer, then enter the answer mode. However, if the verification takes a long time, please tap the "Cancel" button (same as the "Create" button). In this case, the verification will be in the answer mode without completing the verification.
* "Pattern question" creates a puzzle by actually drawing a path on the board. As a procedure, before tapping the "Create" button, tap one of the squares where the pair number is to be placed twice in a row (at this time, the background color of that square changes from white → light blue → dark blue). Tap twice in succession only on the two squares that are the starting point and the ending point for arranging a pair of numbers. ) to create a route. At this time, a red connecting line is drawn between the tapped squares. Routes are created to extend vertically and horizontally, and cannot be extended diagonally. Use the "<" (undo) and ">" (redo) buttons to correct the route. A series of operations from this starting point to the end point is performed for the number of pairs. After filling all the squares on the board with all paths, tap the "Create" button. Create a puzzle in which the same number is placed in the starting and ending squares of each route. When you finish creating, it will be in answer mode.
2) Solve the puzzle
In answer mode, when you tap a number square, the color of the square with the same number that pairs with that square changes to dark blue. Create a path by tapping a series of squares one after another so as to connect pairs of squares from those squares. The squares in the middle of the path are colored light blue and red connecting lines are drawn. Use the "<" (undo) and ">" (redo) buttons to correct the route. When creating one pair of routes, you cannot create another route. Also, you cannot cross other paths, branch off, or connect different numbers with paths. In addition, the number of squares and the number of links during route creation are displayed in the comment line on the board. Fill all squares on the board with paths that connect all number pairs without gaps.
There are "Next Candidate" and "Next Answer" buttons to support the answer. The "Next Candidate" button will color the squares of the number pair of the next possible answer, and display the number of squares and the number of links on the comment line on the board. Also, the "next answer" button creates and displays the next candidate's answer path. At this time, if a route different from the correct route is created, it is deleted. However, both of these buttons are not available if the answer verification is incomplete.
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