Shikaku Player

Shikaku Player

The Shikaku Player is for doing puzzles.

Tap the screen and drag your finger across the board, to make a rectangle. When dragging, the selected cells become light blue. The size will be displayed in the rectangle (box) when the area is larger than 4.

When you release the mouse button after dragging, your selected rectangle (box) will change color. If the area and hint (the number) are different the color becomes light gray. If the selected rectangle (box) violates the rules the rectangle also becomes light gray. No rectangle can have two or more, or zero numbers. A rectangle can contain only one number!!

If the area and hint are the same the color becomes dark gray.

You can enlarge a rectangle (box) you have selected. Try dragging from different points in the rectangle (box). The final shape will depend on where you start, where you finish, and also on the original shape.

Tapping on a rectangle (box) will deselect it (remove the coloring).

Also, when you drag across existing rectangles (boxes) they will be deselected (the color goes) and only the newly dragged rectangle (the one you are creating now) will remain.

Buttons and Icons

Problem number

This is the problem number.

Difficulty marks

These icons show the difficulty level. From the left: easy, medium, hard.

Author's icon

Tap on this icon to see the name of the author.

Solved time

These numbers show time passed from starting the puzzle, here 1 minute and 3 seconds.

Retry button

When you want to start a puzzle anew, tap the "Retry" button and a dialog box appears, then if you choose "Yes" all markings in the puzzle will be deleted.

Undo button

When you want to redo a step, tap the "Undo" button. Repeated tapping on the "Undo" button will return you to the start.

Chekc button

After finishing a problem, tap the "Check" button and the screen will say "Congratulations" - if your solution is correct. If your solution is not correct the puzzle will show one point where it is not correct, then tap the "Check" button to continue to solve the puzzle.

Quit button

If you wish to quit a problem, tap the "Quit" button, and a dialogue box will ask if you wish to "Save" the puzzle, to go back and solve it later; or "Quit," to abandon the puzzle. Next you will be returned to the problem list.

Puzzle List Screen

Problem collection list

This is a list of the problem collections, each contains dozens of puzzles.

The numbers next to the problem collection titles show how many unsolved problems you have left. When you have solved all problems in a problem collection, the number changes to a check mark.

Tap on the "Sort" button, upper right, to sort the order in the problem collection list.

Tap on the each puzzle button on the bottom, to choose problem collection lists of the appropriate puzzle. Tap on the "All" button to display all problem collection lists.

Puzzle List Screen

Problem List

This is the list of problems you can play.

A light blue background shows "Unsolved" problems, light yellow is for "tried but not solved," and pink is for "Solved" problems.

Each puzzle shows, from the left: problem number, author name, difficulty level. The bottom row of solved puzzles shows how many times this puzzle was solved and the record solution time.

Right column: green check for solved and || for tried but not solved puzzles. You can continue solving the puzzle or start over.

The puzzle you worked on most recently has its problem number in italics.

The bottom line shows your record and status. "Total time" turns clear when you have solved all the problems.

Add New Puzzles

Add New Puzzles

You can purchase and add more problem collections that contain dozens of puzzles at the App Store.

When you choose and tap on a problem collection, your device will connect to the App Store. Please follow the purchasing procedures displayed on your screen.



Here you can go to the other screens, problem list, add New Puzzle, tutorial, rules, and preferences.

If you tap "Website", you will quit the application and go to the Nikoli website.



Here you turn the sound on or off, lock or unlock the orientation of the Shikaku player, show or don't show the number of unsolved problems on icon, and enable or disable the "Reverse Handling" functions.

* "Reverse Handling" function is related to the other kinds of puzzles.