Fish Puzzle For KIDs

A pre-fish, fish puzzle to put in the frame of a 6 × 6 square separated into blocks of 2 × 3 is (Sudoku for children).

"Rule Description"
I will put the fish in the mass that is free.
Do not vertical and horizontal and each column, the same fish has entered more than once in a block of 2 × 3, which is surrounded by a thick line.

"Operating Instructions"
When I launched the app ①
You can select the left or right arrow problem.
Beginner, Intermediate, Advanced can be selected.
You can also check the results of each issue.
Puzzle begins when you touch the "Start" are flashing.

② screen puzzle
When you touch such as "Octopus" and "shrimp", fish that are already placed will be yellow.
Picture of the "shrimp" When you touch the mass of the blank is placed in a state by pressing the "shrimp".
Text color of the "Octopus" and "shrimp" when each fish was placed more than a total of six turns gray.
Please Touch the picture you want to erase it if you would delete the picture you put the "erased".
You can turn off the picture just before you put any "return" one.
You can turn off if you press and hold if you want to erase the whole picture you put the "erased".
※ fish that are placed from the beginning can not be erased.
We return to the selection problem Touch "to the menu."
If you clear the puzzle, solve the time to return to the menu will be displayed.
I will confirm the results of the menu screen, press the button.

There are 60 questions in total problem.
Let's work toward all clear.