Kata
Sign Up
Kata
Kumite
Forum
Wiki
Leaders
Log In
Sign Up
Library
Collections
Sort by:
Newest
Oldest
Popularity
Positive Feedback
Most Completed
Least Completed
Recently Published
Hardest
Easiest
Name
Language:
All
My Languages
Agda (Beta)
BF (Beta)
C
CFML (Beta)
Clojure
CoffeeScript
Coq (Beta)
C++
Crystal
C#
Dart
Elixir
Elm (Beta)
Erlang (Beta)
Factor (Beta)
Forth (Beta)
Fortran (Beta)
F#
Go
Groovy (Beta)
Haskell
Idris (Beta)
Java
JavaScript
Julia (Beta)
Kotlin (Beta)
Lean (Beta)
Lua (Beta)
NASM (Beta)
Nim (Beta)
Objective-C (Beta)
OCaml (Beta)
PHP
PowerShell (Beta)
Prolog (Beta)
PureScript (Beta)
Python
R (Beta)
Racket (Beta)
Reason (Beta)
Ruby
Rust
Scala (Beta)
Shell
Solidity (Beta)
SQL
Swift
TypeScript
VB (Beta)
Status:
Approved & Beta
Approved
Beta
Progress:
All
Kata I have not trained on
Kata I have not completed
Kata I have completed
Difficulty:
8 kyu
8 kyu
7 kyu
7 kyu
6 kyu
6 kyu
5 kyu
5 kyu
4 kyu
4 kyu
3 kyu
3 kyu
2 kyu
2 kyu
1 kyu
1 kyu
Tags:
Fundamentals (4061)
Algorithms (3015)
Data Types (2454)
Logic (2193)
Numbers (1301)
Strings (1178)
Puzzles (1175)
Arrays (1024)
Mathematics (995)
Games (986)
Basic Language Features (849)
Programming Paradigms (801)
Data Structures (574)
Control Flow (556)
Declarative Programming (492)
Advanced Language Features (352)
Regular Expressions (265)
Object-oriented Programming (245)
Functions (211)
Lists (209)
Functional Programming (174)
Arithmetic (172)
Loops (168)
Objects (145)
Bugs (132)
Algebra (130)
Data (126)
Theoretical Computer Science (118)
Performance (117)
Security (112)
Sorting (108)
Parsing (105)
Computability Theory (104)
Recursion (104)
Classes (97)
Binary (95)
Optimization (95)
Integers (94)
Cryptography (86)
Geometry (86)
Utilities (86)
Databases (83)
Information Systems (83)
SQL (81)
Graphs (80)
Dates/Time (73)
Sequences (64)
Design Principles (60)
Design Patterns (58)
Formatting (52)
3015 Kata Found
3 kyu
Make a spiral
595
595
87
88%
of
720
3,957
Bugari
3 Issues Reported
Algorithms
Arrays
Control Flow
Basic Language Features
Fundamentals
6 kyu
Wave Sorting
17
17
6
84%
of
65
195
kodejuice
2 Issues Reported
Algorithms
Arrays
6 kyu
Basics 07: Calculate Sin(x) - too easy?
10
10
2
91%
of
65
194
smile67
4 Issues Reported
Algorithms
Mathematics
Numbers
Fundamentals
3 kyu
Simplifying
176
176
51
91%
of
41
199
sataman
Puzzles
Map/Reduce
Algorithms
Games
3 kyu
Line Safari - Is that a line?
179
179
42
86%
of
102
306
dinglemouse
Algorithms
3 kyu
Reversi Win Checker
8
8
1
100%
of
4
7
DatabaseMonkey
Algorithms
Puzzles
Games
6 kyu
Replacement
17
17
2
84%
of
104
513
arhigod
Fundamentals
Algorithms
Arrays
6 kyu
Break camelCase
174
174
72
87%
of
1,480
11,869
hakt
Fundamentals
Strings
Formatting
Algorithms
5 kyu
Rot13
633
633
147
87%
of
2,527
22,237
Rubikan
4 Issues Reported
Fundamentals
Ciphers
Algorithms
Cryptography
Security
6 kyu
Sum of Digits / Digital Root
1346
1346
283
89%
of
10,443
77,325
user578387
2 Issues Reported
Algorithms
Mathematics
Numbers
Arithmetic
6 kyu
Next polydivisible number
25
25
6
87%
of
23
71
JohanWiltink
Algorithms
Numbers
6 kyu
Simple Barcode Scanner
8
8
2
80%
of
23
77
furbrain
Algorithms
Regular Expressions
Declarative Programming
Advanced Language Features
Fundamentals
Strings
7 kyu
Currency Conversion
10
10
4
82%
of
83
301
ajLapid718
Fundamentals
Mathematics
Algorithms
Numbers
Algebra
7 kyu
2D Vector Mapping
6
6
1
84%
of
29
57
David Gildour
Algorithms
Mathematics
Numbers
Dynamic Arrays
Arrays
Functional Programming
Declarative Programming
Vectors
Mapping
6 kyu
Text Door Neighbors - Phone Keypad
1
1
0
85%
of
10
14
SaladFork
Algorithms
7 kyu
Half Life
4
4
0
84%
of
22
61
victorazzam
Fundamentals
Mathematics
Algorithms
Numbers
Basic Language Features
7 kyu
Picking the best casino game
3
3
1
82%
of
22
46
Scopula
Fundamentals
Mathematics
Algorithms
Numbers
7 kyu
Data Type Scramble
3
3
0
85%
of
33
76
fisher60
Fundamentals
Parsing
Algorithms
Strings
Structs
Data Structures
Numbers
Integers
Booleans
6 kyu
The Fiscal Code
8
8
0
83%
of
15
32
user7147914
Algorithms
Strings
Objects
Formatting
7 kyu
Are the numbers in order?
89
89
46
86%
of
1,458
10,852
donaldsebleung
1 Issue Reported
Algorithms
Fundamentals
Mathematics
Numbers
Control Flow
Basic Language Features
Optimization
5 kyu
First Variation on Caesar Cipher
522
522
82
82%
of
478
2,680
g964
Fundamentals
Ciphers
Algorithms
Cryptography
Security
Strings
Utilities
6 kyu
Array Exchange
22
22
6
87%
of
130
587
hafizio
1 Issue Reported
Fundamentals
Arrays
Algorithms
4 kyu
Getting along with Integer Partitions
537
537
93
93%
of
348
1,395
g964
Fundamentals
Algorithms
Optimization
4 kyu
All Balanced Parentheses
302
302
54
95%
of
238
1,328
xcthulhu
Algorithms
Interview Questions
7 kyu
Find the area of the rectangle!
18
18
2
86%
of
208
1,100
iamchingel
Fundamentals
Mathematics
Algorithms
Numbers
7 kyu
Cyclops numbers
20
20
6
95%
of
145
744
Nmistrata
Algorithms
6 kyu
Difference of 2
60
60
8
94%
of
279
1,736
technikhil
Algorithms
Arrays
Sorting
Loops
Control Flow
Basic Language Features
Fundamentals
Utilities
6 kyu
Basics 08: Find next higher number with same Bits (1's)
26
26
10
96%
of
117
418
smile67
Algorithms
Fundamentals
Mathematics
Numbers
7 kyu
nova polynomial 1. add
9
9
9
85%
of
88
309
hgamboa
1 Issue Reported
Algorithms
Mathematics
Numbers
Recursion
Computability Theory
Theoretical Computer Science
Arrays
8 kyu
Expressions Matter
229
229
75
86%
of
1,708
13,091
MrZizoScream
1 Issue Reported
Fundamentals
Algorithms
Numbers
Basic Language Features
Loading...
Confirm