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
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)
Lua (Beta)
NASM (Beta)
Nim (Beta)
Objective-C (Beta)
OCaml (Beta)
PHP
PowerShell (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 (4002)
Algorithms (2956)
Data Types (2424)
Logic (2147)
Numbers (1273)
Strings (1167)
Puzzles (1157)
Arrays (1011)
Games (977)
Mathematics (969)
Basic Language Features (838)
Programming Paradigms (791)
Data Structures (567)
Control Flow (551)
Declarative Programming (488)
Advanced Language Features (345)
Regular Expressions (263)
Object-oriented Programming (242)
Functions (210)
Lists (208)
Functional Programming (173)
Arithmetic (170)
Loops (167)
Objects (141)
Bugs (131)
Data (126)
Algebra (125)
Theoretical Computer Science (114)
Security (111)
Performance (110)
Sorting (105)
Parsing (103)
Computability Theory (100)
Recursion (100)
Binary (95)
Classes (95)
Integers (93)
Optimization (91)
Utilities (86)
Cryptography (85)
Geometry (85)
Databases (83)
Information Systems (83)
SQL (81)
Graphs (79)
Dates/Time (73)
Sequences (64)
Design Principles (61)
Design Patterns (59)
Formatting (51)
3718 Kata Found
7 kyu
Numbers to Letters
30
30
8
86%
of
214
923
A.Partridge
2 Issues Reported
Fundamentals
Strings
Numbers
Arrays
7 kyu
Hexadecimal Keys
6
6
2
90%
of
42
151
Dakota
Algorithms
5 kyu
Packing your backpack
36
36
7
85%
of
43
146
Frederikbh
Algorithms
Dynamic Programming
4 kyu
Shortest Knight Path
166
166
58
97%
of
218
870
ElDynamite
Algorithms
6 kyu
Vasya - Clerk
1779
1779
257
86%
of
4,213
28,134
AlexIsHappy
3 Issues Reported
Fundamentals
Mathematics
Algorithms
Numbers
Games
7 kyu
Breaking chocolate problem
240
240
32
81%
of
2,513
23,111
krikus
Algorithms
Numbers
8 kyu
Beginner - Lost Without a Map
208
208
77
90%
of
2,922
23,756
A.Partridge
1 Issue Reported
Fundamentals
Arrays
Numbers
6 kyu
Pairs of Bears
33
33
4
92%
of
149
676
A.Partridge
Fundamentals
Strings
Numbers
Arrays
7 kyu
Ski Jump
12
12
4
83%
of
130
606
A.Partridge
1 Issue Reported
Fundamentals
Strings
Arrays
Mathematics
Algorithms
Numbers
7 kyu
Divide and Conquer
12
12
1
92%
of
186
958
A.Partridge
1 Issue Reported
Fundamentals
Strings
Numbers
Arrays
8 kyu
Alan Partridge II - Apple Turnover
21
21
16
82%
of
598
3,636
A.Partridge
Fundamentals
Numbers
Strings
Mathematics
Algorithms
6 kyu
Row of the odd triangle
15
15
0
91%
of
115
485
shikyo
Algorithms
Performance
4 kyu
Five Fundamental Monads
65
65
21
94%
of
114
371
mpickering
Fundamentals
Monads
Data Structures
Functional Programming
6 kyu
Strongest even number in an interval
14
14
4
88%
of
25
67
alexmate
Algorithms
Mathematics
Numbers
3 kyu
The Millionth Fibonacci Kata
659
659
86
89%
of
566
3,663
xcthulhu
4 Issues Reported
Algorithms
Mathematics
Numbers
7 kyu
Ironman Triathlon
17
17
2
83%
of
108
566
A.Partridge
1 Issue Reported
Fundamentals
Numbers
Arrays
Objects
7 kyu
Sort by Last Char
50
50
11
90%
of
364
1,896
A.Partridge
Fundamentals
Strings
Arrays
Functions
Control Flow
Basic Language Features
8 kyu
Sum Mixed Array
100
100
44
91%
of
1,549
11,669
A.Partridge
Fundamentals
Strings
Numbers
Arrays
7 kyu
Holiday II - Plane Seating
14
14
3
90%
of
99
410
A.Partridge
Fundamentals
Strings
Numbers
Arrays
8 kyu
Count the Monkeys!
197
197
70
89%
of
2,410
21,412
A.Partridge
1 Issue Reported
Algorithms
Arrays
Fundamentals
Ranges
Basic Language Features
Lists
Data Structures
8 kyu
The 'if' function
119
119
31
70%
of
879
9,037
user578387
3 Issues Reported
Fundamentals
Functional Programming
Declarative Programming
Higher-order Functions
Functions
Control Flow
Basic Language Features
7 kyu
Double Sort
13
13
9
90%
of
283
1,255
A.Partridge
Fundamentals
Strings
Numbers
Arrays
6 kyu
Lattice Point Interpolation
5
5
3
90%
of
5
12
abiessu
Algorithms
Numbers
Integers
Arrays
6 kyu
Vowels Back
32
32
6
84%
of
110
433
A.Partridge
1 Issue Reported
Algorithms
Fundamentals
Strings
Arrays
Loops
Control Flow
Basic Language Features
5 kyu
Decimal to Factorial and Back
191
191
40
91%
of
283
1,653
g964
Algorithms
Numbers
Utilities
7 kyu
Sum of odd numbers
966
966
169
84%
of
5,322
38,268
hhelwich
Fundamentals
Arrays
Lists
Data Structures
Numbers
Arithmetic
Mathematics
Algorithms
6 kyu
Help the bookseller !
435
435
86
84%
of
1,246
8,106
g964
Fundamentals
Algorithms
3 kyu
Upside-Down Numbers - Challenge Edition
124
124
16
91%
of
22
96
docgunthrop
Algorithms
Performance
6 kyu
Sort Arrays (Ignoring Case)
30
30
3
83%
of
258
3,988
ineiti
1 Issue Reported
Fundamentals
Arrays
Sorting
Algorithms
6 kyu
Taylor Series
6
6
3
88%
of
12
26
Paul Robertson
Fundamentals
Mathematics
Algorithms
Numbers
Lists
Data Structures
Loading...
Confirm