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)
3747 Kata Found
6 kyu
Schrödinger's Boolean
50
50
14
88%
of
176
692
docgunthrop
Puzzles
7 kyu
Breaking chocolate problem
233
233
30
81%
of
2,451
22,676
krikus
Algorithms
Numbers
8 kyu
Beginner - Lost Without a Map
198
198
76
90%
of
2,807
22,940
A.Partridge
1 Issue Reported
Fundamentals
Arrays
Numbers
6 kyu
Pairs of Bears
24
24
5
92%
of
132
577
A.Partridge
Fundamentals
Strings
Numbers
Arrays
8 kyu
Remove String Spaces
290
290
117
89%
of
5,458
44,009
A.Partridge
Fundamentals
Strings
Arrays
8 kyu
Well of Ideas - Easy Version
90
90
29
91%
of
965
6,593
A.Partridge
Refactoring
Fundamentals
Arrays
Strings
7 kyu
Ski Jump
12
12
2
83%
of
110
503
A.Partridge
1 Issue Reported
Fundamentals
Strings
Arrays
Mathematics
Algorithms
Numbers
7 kyu
Divide and Conquer
10
10
1
91%
of
166
823
A.Partridge
1 Issue Reported
Fundamentals
Strings
Numbers
Arrays
8 kyu
Alan Partridge II - Apple Turnover
18
18
15
82%
of
580
3,462
A.Partridge
Fundamentals
Numbers
Strings
Mathematics
Algorithms
4 kyu
Five Fundamental Monads
66
66
21
94%
of
112
369
mpickering
Fundamentals
Monads
Data Structures
Functional Programming
7 kyu
Ironman Triathlon
15
15
2
83%
of
102
535
A.Partridge
1 Issue Reported
Fundamentals
Numbers
Arrays
Objects
7 kyu
Sort by Last Char
47
47
11
89%
of
358
1,842
A.Partridge
Fundamentals
Strings
Arrays
Functions
Control Flow
Basic Language Features
8 kyu
Sum Mixed Array
95
95
43
91%
of
1,533
11,435
A.Partridge
Fundamentals
Strings
Numbers
Arrays
6 kyu
Counting Duplicates
1189
1189
227
89%
of
7,372
51,864
kgashok
3 Issues Reported
Fundamentals
Strings
7 kyu
Holiday II - Plane Seating
13
13
3
90%
of
92
377
A.Partridge
Fundamentals
Strings
Numbers
Arrays
8 kyu
Count the Monkeys!
192
192
69
89%
of
2,391
21,132
A.Partridge
1 Issue Reported
Algorithms
Arrays
Fundamentals
Ranges
Basic Language Features
Lists
Data Structures
8 kyu
The 'if' function
118
118
30
70%
of
868
8,945
user578387
3 Issues Reported
Fundamentals
Functional Programming
Declarative Programming
Higher-order Functions
Functions
Control Flow
Basic Language Features
7 kyu
Borrower Speak
12
12
4
91%
of
237
1,137
A.Partridge
Fundamentals
Strings
7 kyu
Double Sort
13
13
9
90%
of
275
1,220
A.Partridge
Fundamentals
Strings
Numbers
Arrays
6 kyu
Lattice Point Interpolation
5
5
3
90%
of
5
11
abiessu
Algorithms
Numbers
Integers
Arrays
8 kyu
The Wide-Mouthed frog!
19
19
7
86%
of
615
3,701
nbeck
Fundamentals
Strings
6 kyu
Amidakuji
40
40
9
93%
of
80
290
docgunthrop
Fundamentals
Arrays
6 kyu
Vowels Back
32
32
6
84%
of
109
423
A.Partridge
1 Issue Reported
Algorithms
Fundamentals
Strings
Arrays
Loops
Control Flow
Basic Language Features
5 kyu
Decimal to Factorial and Back
189
189
38
91%
of
279
1,624
g964
Algorithms
Numbers
Utilities
6 kyu
Ease the StockBroker
133
133
24
75%
of
234
1,100
g964
Fundamentals
Strings
7 kyu
Sum of odd numbers
961
961
167
84%
of
5,303
38,062
hhelwich
Fundamentals
Arrays
Lists
Data Structures
Numbers
Arithmetic
Mathematics
Algorithms
6 kyu
Sort Arrays (Ignoring Case)
29
29
3
83%
of
251
3,956
ineiti
1 Issue Reported
Fundamentals
Arrays
Sorting
Algorithms
7 kyu
Thinking & Testing : Uniq or not Uniq
31
31
8
91%
of
247
978
myjinxin2015
2 Issues Reported
Puzzles
Games
6 kyu
Moduli number system
58
58
8
86%
of
160
991
g964
Fundamentals
Numbers
4 kyu
Sum of Intervals
493
493
105
91%
of
1,013
7,289
xDranik
2 Issues Reported
Algorithms
Aggregations
Arithmetic
Mathematics
Numbers
Integers
Loading...
Confirm