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Games and coding challenges

A structured challenge arcade for coding practice, plus a safe doorway into TeKi-SL for Kids for younger learners.

Browse challengesTeKi-SL for Kids
Challenges
12
Kids games
33
Levels
3

Featured challenge

FizzBuzz

Print numbers 1 to 20, but "Fizz" for multiples of 3 and "Buzz" for multiples of 5.

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JavaScript · 4Python · 5HTML/CSS · 1HTML/CSS/JS · 2Compiler linked

Beginner

Beginner challenges.

Short wins for learners building confidence.

Beginner

FizzBuzz

Print numbers 1 to 20, but "Fizz" for multiples of 3 and "Buzz" for multiples of 5.

Hint available in the compiler

JavaScript15 min
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Beginner

Reverse a word

Take a word and print it backwards. Try it without a built-in reverse method.

Hint available in the compiler

Python15 min
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Beginner

Count the vowels

Given a sentence, count how many vowels (a, e, i, o, u) it contains.

Hint available in the compiler

JavaScript15 min
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Beginner

Find the largest number

From a list of numbers, print the biggest one without using max().

Hint available in the compiler

Python15 min
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Beginner

Hello, Salone!

Build a styled web page that displays "Kushe, Salone!" with your own CSS. Make it colourful.

Hint available in the compiler

HTML/CSS20 min
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Beginner

Sum of digits

Take a number like 1234 and print the sum of all its individual digits (1+2+3+4=10).

Hint available in the compiler

Python15 min
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Intermediate

Intermediate challenges.

Practical tasks that combine logic, syntax, and debugging.

Intermediate

Palindrome checker

Check whether a word reads the same forwards and backwards.

Hint available in the compiler

JavaScript20 min
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Intermediate

Build a tip calculator

A page with an input for a bill amount and a button that shows a 10% tip. Extend it to let users choose 10%, 15%, or 20%.

Hint available in the compiler

HTML/CSS/JS35 min
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Intermediate

Word frequency counter

Count how many times each unique word appears in a sentence. Print the top 3 most frequent.

Hint available in the compiler

Python30 min
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Intermediate

Countdown timer

Build a timer that counts down from 60 seconds and shows "Time is up!" when it reaches zero.

Hint available in the compiler

HTML/CSS/JS35 min
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Intermediate

Fibonacci sequence

Print the first 15 numbers of the Fibonacci sequence. Then find the first Fibonacci number greater than 1000.

JavaScript25 min
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Advanced

Advanced challenges.

Longer problems for learners ready to structure a solution.

Advanced

Shopping cart total

Given a list of items with names and prices, calculate the total, apply a 15% discount if the total is over 50, and print a receipt.

Hint available in the compiler

Python45 min
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For children

Kids have their own safe learning game world.

Younger learners belong in TeKi-SL for Kids, where the games are built around parent-managed profiles, child-friendly instructions, and age-aware activities.

Explore TeKi-SL for Kids