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
2
Algorithms
6
Arrays
6
Data Structures
11
Fundamentals
8
Linear Algebra
4
Lists
3
Logic
1
Mathematics
6
Matrix
11
Permutations
1
Sorting
2
FEATURED TAGS
Cryptography
Data Science
Debugging
Games
Tutorials
11 Kata Found
6 kyu
#4 Matrices: Process for a Square Matrix
360
raulbc777
Mathematics
Data Structures
Matrix
Linear Algebra
Fundamentals
6 kyu
#8 Matrices: Up and Down Sorting For Each Column
509
raulbc777
Fundamentals
Algorithms
Data Structures
Mathematics
Matrix
Sorting
6 kyu
#6 Matrices: How Many Matrices Do These Elements Produce?
208
raulbc777
Permutations
Matrix
Data Structures
Fundamentals
6 kyu
2D Cellular Neighbourhood - Part 2
184
sgerodes
1 Issue Reported
Algorithms
Data Structures
Arrays
Matrix
7 kyu
2D Cellular Neighbourhood
902
sgerodes
1 Issue Reported
Algorithms
Data Structures
Arrays
Matrix
6 kyu
#5 Matrices: Sort The Matrix
258
raulbc777
1 Issue Reported
Algorithms
Matrix
Sorting
Data Structures
Fundamentals
6 kyu
Transpose of a Matrix
865
debri
4 Issues Reported
Linear Algebra
Matrix
Data Structures
Mathematics
Arrays
Fundamentals
6 kyu
3D Cellular Neighbourhood
81
sgerodes
2 Issues Reported
Algorithms
Data Structures
Arrays
Lists
Matrix
7 kyu
#1 Matrices : Making an Alternating Sum
1,007
raulbc777
2 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Matrix
5 kyu
Matrices II: Serious mathematics
78
MazTheMazy
1 Issue Reported
Fundamentals
Mathematics
Data Structures
Algebra
Linear Algebra
Arrays
Lists
Matrix
6 kyu
Matrices I: A form of data storage
160
MazTheMazy
Fundamentals
Mathematics
Data Structures
Algebra
Linear Algebra
Arrays
Lists
Matrix
Confirm
Collect:
undefined
Loading collection data...