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Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.

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4 kyu
Explosive Sum
7,992surtich
Algorithms
Mathematics
Fundamentals
4 kyu
Adding Big Numbers
30,093Becojo
Mathematics
Big Integers
Algorithms
5 kyu
Morse Encoding
1,219constablebrew
Bits
Strings
Binary
Parsing
Algorithms
3 kyu
Sudoku Solver
12,580pineappleclock
Games
Game Solvers
Algorithms
Retired
Escape the Mines ! (retired)
2,510damned3
Data Structures
Algorithms
Puzzles
Graph Theory
5 kyu
A Chain adding function
27,556gelus
Mathematics
Functional Programming
Puzzles
5 kyu
String incrementer
45,330parceval
Regular Expressions
Strings
4 kyu
Strings Mix
22,142g964
Fundamentals
Strings
4 kyu
So Many Permutations!
44,609BattleRattle
Permutations
Strings
Algorithms
5 kyu
Convert all the cases!
1,357AJFarmar
Strings
Regular Expressions
Algorithms
5 kyu
Lazy Repeater
7,072nklein
Iterators
Algorithms
6 kyu
Simple card game
3,307gertasik
Arrays
Games
Algorithms
4 kyu
Vigenère Cipher Helper
7,760jacobb
Algorithms
Ciphers
Security
Object-oriented Programming
Strings
Retired
Calculator (retired)
11,547obrok
Algorithms
Parsing
Logic
Strings
Expressions
Basic Language Features
Fundamentals
4 kyu
parseInt() reloaded
16,273BattleRattle
Parsing
Strings
Algorithms