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- Ruby
- JavaScript
- CoffeeScript
- Python
- C#
- Prolog (Beta)
- C
- CFML (Beta)
- Julia (Beta)
- NASM
- Crystal
- TypeScript
- R (Beta)
- COBOL (Beta)
- C++
- Scala
- PHP
- Haskell
- Swift
- Java
- Racket
- Factor (Beta)
- Lua
- Dart
- Elixir
- CommonLisp (Beta)
- Rust
- D (Beta)
- F#
- λ Calculus (Beta)
- Fortran (Beta)
- Kotlin
- Go
- RISC-V (Beta)
- BF (Beta)
- Shell
- Perl (Beta)
- SQL
- Nim (Beta)
- Haxe (Beta)
- Pascal (Beta)
- Clojure
- PureScript (Beta)
- OCaml (Beta)
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.