Intro

In this game, you can use your mouse to control 3 light bulbs:
  • To turn on a light bulb, click it on the screen
  • To turn off a light bulb, just click on it again

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Practice

Some light bulbs can give light to others. When these special light bulbs turn on, they can turn on other light bulbs at the same time! — Let's see how this works!

Example 1

The red arrow tells us which light bulb can give light to another.

Example 2

Sometimes more than one light bulb can give light to others, like these ones.

Example 3

Light bulbs can work in different ways. Below is another example.

Example 4

There are more ways our light blubs can work. Let's check out one last example.

Congratulations, you've learned a lot about light bulbs! Ready to solve some puzzles?

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Puzzles

Sometimes we don't know how the light bulbs work together because the arrows are hidden away. There are two ways they may work but only one of them is correct!


Alex

Puzzle 1

One of the two pictures shows how the 3 light bulbs work:

Puzzle 2

One of the two pictures shows how the 3 light bulbs work:

Puzzle 3

One of the two pictures shows how the 3 light bulbs work:

Puzzle 4

One of the two pictures shows how the 3 light bulbs work:

Puzzle 5

One of the two pictures shows how the 3 light bulbs work:

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Elements

Text

This is bold and this is strong. This is italic and this is emphasized. This is superscript text and this is subscript text. This is underlined and this is code: for (;;) { ... }. Finally, this is a link.

Heading Level 2

Heading Level 3

Heading Level 4

Heading Level 5
Heading Level 6

Blockquote

Fringilla nisl. Donec accumsan interdum nisi, quis tincidunt felis sagittis eget tempus euismod. Vestibulum ante ipsum primis in faucibus vestibulum. Blandit adipiscing eu felis iaculis volutpat ac adipiscing accumsan faucibus. Vestibulum ante ipsum primis in faucibus lorem ipsum dolor sit amet nullam adipiscing eu felis.

Preformatted

i = 0;

while (!deck.isInOrder()) {
    print 'Iteration ' + i;
    deck.shuffle();
    i++;
}

print 'It took ' + i + ' iterations to sort the deck.';

Lists

Unordered

  • Dolor pulvinar etiam.
  • Sagittis adipiscing.
  • Felis enim feugiat.

Alternate

  • Dolor pulvinar etiam.
  • Sagittis adipiscing.
  • Felis enim feugiat.

Ordered

  1. Dolor pulvinar etiam.
  2. Etiam vel felis viverra.
  3. Felis enim feugiat.
  4. Dolor pulvinar etiam.
  5. Etiam vel felis lorem.
  6. Felis enim et feugiat.

Icons

Actions

Table

Default

Name Description Price
Item One Ante turpis integer aliquet porttitor. 29.99
Item Two Vis ac commodo adipiscing arcu aliquet. 19.99
Item Three Morbi faucibus arcu accumsan lorem. 29.99
Item Four Vitae integer tempus condimentum. 19.99
Item Five Ante turpis integer aliquet porttitor. 29.99
100.00

Alternate

Name Description Price
Item One Ante turpis integer aliquet porttitor. 29.99
Item Two Vis ac commodo adipiscing arcu aliquet. 19.99
Item Three Morbi faucibus arcu accumsan lorem. 29.99
Item Four Vitae integer tempus condimentum. 19.99
Item Five Ante turpis integer aliquet porttitor. 29.99
100.00

Buttons

  • Disabled
  • Disabled

Form