Kata Library: Ruby Practice
Sign Up
Time to claim your honor
Training
Practice
Complete challenging
Kata
to earn honor and ranks. Re-train to hone technique
Freestyle Sparring
Take turns remixing and refactoring others code through
Kumite
Community
Leaderboards
Achieve honor and move up the global leaderboards
Chat
Join our
Discord
server and chat with your fellow code warriors
Discussions
View our
Github Discussions
board to discuss general Codewars topics
About
Docs
Learn about all of the different aspects of Codewars
Blog
Read the latest news from Codewars and the community
Log In
Sign Up
Library
Collections
Newest
Oldest
Popularity
Positive Feedback
Most Completed
Least Completed
Hardest
Easiest
Name
Relevance
Low Satisfaction
All
My Languages
Agda (Beta)
BF (Beta)
C
CFML (Beta)
Clojure
COBOL (Beta)
CoffeeScript
CommonLisp (Beta)
Coq
C++
Crystal
C#
D (Beta)
Dart
Elixir
Elm (Beta)
Erlang (Beta)
Factor (Beta)
Forth (Beta)
Fortran (Beta)
F#
Go
Groovy
Haskell
Haxe (Beta)
Idris (Beta)
Java
JavaScript
Julia (Beta)
Kotlin
λ Calculus (Beta)
Lean
Lua
NASM
Nim (Beta)
Objective-C (Beta)
OCaml (Beta)
Pascal (Beta)
Perl (Beta)
PHP
PowerShell (Beta)
Prolog (Beta)
PureScript (Beta)
Python
R (Beta)
Racket
Raku (Beta)
Reason (Beta)
RISC-V (Beta)
Ruby
Rust
Scala
Shell
Solidity (Beta)
SQL
Swift
TypeScript
VB (Beta)
Approved & Beta
Approved
Beta
All
Kata I have not trained on
Kata I have not completed
Kata I have completed
8 kyu
easiest
7 kyu
6 kyu
5 kyu
4 kyu
3 kyu
2 kyu
1 kyu
hardest
Algorithms
2
Fundamentals
12
Geometry
1
Lists
1
Logic
1
Mathematics
3
Puzzles
2
Restricted
12
Strings
3
FEATURED TAGS
Cryptography
Data Science
Debugging
Games
Tutorials
12 Kata Found
6 kyu
File Path Operations
1,740
user2514386
3 Issues Reported
Fundamentals
Strings
Restricted
7 kyu
No ifs no buts
3,211
MichaelSel
Restricted
Fundamentals
8 kyu
Name on billboard
20,418
val_alex
5 Issues Reported
Fundamentals
Restricted
Strings
7 kyu
isEven? - Bitwise Series
1,903
MichaelSel
1 Issue Reported
Restricted
Fundamentals
7 kyu
Baby shark lyrics generator
2,689
albertogcmr
2 Issues Reported
Strings
Lists
Fundamentals
Restricted
7 kyu
MOD 256 without the MOD operator
3,264
user5036852
3 Issues Reported
Algorithms
Fundamentals
Logic
Mathematics
Restricted
Puzzles
8 kyu
5 without numbers !!
37,909
KH!
Restricted
Fundamentals
Puzzles
7 kyu
[Code Golf] One Line Task: Pyramid of Spheres
125
polluxCast0r
Mathematics
Geometry
Restricted
Fundamentals
7 kyu
[Code Golf] Return Odd No Matter What
1,175
ilya_plotnikov
Fundamentals
Restricted
Algorithms
7 kyu
[ Code Golf ] Add 2 values for each
634
jamad
Restricted
Fundamentals
Beta
Multiply Two Numbers Without Integers
294
user7408403
6 Issues Reported
Status:
Waiting for issues to be resolved
Estimated Rank:
4 kyu
Mathematics
Restricted
Fundamentals
7 kyu
No Modulo
1,167
sergelerator
4 Issues Reported
Restricted
Fundamentals
Confirm
Collect:
undefined
Loading collection data...