pxt-calliope/olddocs/lessons/snowflake-fall/challenges.md

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# snowflake fall blocks challenges
Coding challenges for snowflake fall.
## Before we get started
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Complete the [snowflake fall](/lessons/snowflake-fall/activity) activity and your code will look like this:
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```blocks
basic.forever(() => {
basic.showLeds(`
. . . . .
. . # . .
. # # # .
. . # . .
. . . . .
`)
basic.showLeds(`
. . # . .
. # . # .
# . . . #
. # . # .
. . # . .
`)
})
```
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### Challenge 1
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To finalize our snowflake fall, let's add a different snowflake pattern.
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```blocks
basic.forever(() => {
basic.showLeds(`
. . . . .
. . # . .
. # # # .
. . # . .
. . . . .
`)
basic.showLeds(`
. . # . .
. # . # .
# . . . #
. # . # .
. . # . .
`)
basic.showLeds(`
. # . # .
# # # # #
. # . # .
# # # # #
. # . # .
`)
})
```
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* Run your program and see if it works.
### Challenge 3
Add a fourth frame to the current animation... or make it your own!