Nonogram (IllustLogic)

Key to solution

Beginner Level (3)

Look at the third column from the right.

The clue is (1,2), and the solids matching the clue have been already filled.

Therefore, you will know all the remaining blocks in this line are blanks.

Next, look at the bottom row. It is troublesome to pay attention to the whole grid and check rows and columns often, but it's very important.

The clue of this row is (6) and since the 6 solids have been filled, the remaining blocks will be blank.

You have just solved the two blank blocks in the bottom row (the second blocks from both ends), which means you've also made progress in two columns containing the blanks. So, let's take a look at them to see if there is something to solve more.

The clues of these two columns are both (2,4), and 4 can be solved now.

The sixth row looks like this now:

By the clue, (2,2,2), it is clear that all solids are 2-grids long.

There is one solid on the right side of this row. It has blank block on its left, so you must fill in the right block to make it 2-grids long.

Now the rightmost grid has been filled.

Look at the rightmost column. Its clue is (5), and all the 5 grids are filled. Therefore, the top grid of this column will be blank.

Then it will solve the right 3 of top row (3,3).

And it will yield more--look at the column containing the grid just filled (fourth from the right). Its clue is (2,1,1), and note the 2 has been solved. And the next grid to the solved solids will be blank.

Look at the third row. The clue is (1,1) and there are already two solids on both ends of the line. Therefore all the remaining grids will be blanks.

By the way, this line could be solved long time ago. I skipped this to explain smoothly.

Now that the third row has been solved, let's look at the fourth column from the left.

I don't think you need explanation for how the first clue, 2, of (2,1,1) can be solved.

This solves the left 3 of the top row (3,3). So you can decide the leftmost grid blank.

This influences the first (left) column (5).

And this solves the first 2 of the sixth row (2,2,2).

Isn't it fun when one solution yields another solutions one after another?

Look at the fifth column from the right. Its clue is (1,1,1,1,1) and it means there are five separate solids in that line. I think you will see there is only one pattern to place the rest of the solids as in this figure.

This line also could be solved long time ago, but I left this part until now.

And now look at the seventh row (1,1). The two solids are already decided, so you can decide the rest of the grids blank.

This line could be solved before, too.

This is the fourth row from the top.
The clue is (1,2,2,1), and 2 and 2 in the middle are unsolved. But you will see there is no solution other than shown in this figure.

At this state, the rest of the solution has been decided. But I will show the rest of the solution anyway.

I think there is no problem to solve the remaining grids in the third and fourth columns as in this figure.

And in the same manner, the fourth column from the right will be solved.

You are almost done.

The clue of the fifth column is (1,2,1,1), and 2 and 1 in the middle are unsolved.

Note the undecided grids in this line just fit with these 2 and 1. So there is no other pattern.

Now, the whole grid is solved.

I will show the orange grids black to show what the finished puzzle looks like.

When you click on the "Check" button, the program checks if your solution is correct.


Or, do you want to move on to "Intermediate Level" page now?

By the way, since human being is not perfect, sometimes we make mistakes in easy puzzles.

What happens when you jump to the wrong solution and click on the "Check" button with this figure? I will show you how the program checks this.

The program complains showing row/column in which the clue is not satisfied with red line.

One way to solve this is to reverse the state of the grid where the two red lines cross. This works sometimes.

When you click on the "Check" button again, the display will be redrawn and the red line will disappear, indicating the solution is correct. For some puzzles there is "Congratulations" page for correct answers.

You should try on your own now. I have explained the basic technique to solve Nonogram and now its up to your skills. If you feel this explanation is not enough, please read the "Intermediate Level(currently unavailable)" page.

All rights reserved to Hirofumi Fujiwara for all the knowhow and contents of Key to solution for Nonogram page.