Kata Library
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
Algebra
1
Algorithms
9
Arrays
9
Combinatorics
1
Fundamentals
1
Games
1
Geometry
9
Graphics
1
Logic
1
Mathematics
3
Performance
2
Physics
1
Puzzles
2
FEATURED TAGS
Cryptography
Data Science
Debugging
Games
Tutorials
9 Kata Found
4 kyu
1 unique common number in every pair
111
Zzudo
Algorithms
Combinatorics
Arrays
Mathematics
Geometry
6 kyu
Triangles made of random points
237
Muchacos
Mathematics
Geometry
Algorithms
Arrays
Performance
Fundamentals
Beta
Solving a Soma Cuboid
3
Splendid
Status:
Testing & feedback needed
Estimated Rank:
6 kyu
Puzzles
Arrays
Algorithms
Geometry
6 kyu
Playing With Toy Blocks ~ Can you build a 4x4 square?
762
rowcased
Logic
Arrays
Games
Puzzles
Geometry
Algorithms
7 kyu
Near or Far
127
SeraphWedd
Arrays
Algorithms
Geometry
Mathematics
Beta
Count unique shapes
5
oleggozhyi
Status:
Testing & feedback needed
Estimated Rank:
4 kyu
Geometry
Arrays
Algorithms
Beta
Number Spiral - Square Warmup
14
michalporeba
Status:
Testing & feedback needed
Estimated Rank:
6 kyu
Algorithms
Geometry
Arrays
Performance
5 kyu
Lorentz-Transform the Electric and Magnetic Fields
33
LearningFTW
Physics
Arrays
Algebra
Geometry
Algorithms
2 kyu
Optical character recognition
85
geoffp
Algorithms
Arrays
Geometry
Graphics
Confirm
Collect:
undefined
Loading collection data...