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 (4001)
Algorithms (2953)
Data Types (2424)
Logic (2145)
Numbers (1272)
Strings (1167)
Puzzles (1157)
Arrays (1011)
Games (977)
Mathematics (968)
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 (109)
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)
4391 Kata Found
7 kyu
Ironman Triathlon
6
6
0
88%
of
40
171
A.Partridge
Fundamentals
Numbers
Arrays
Objects
7 kyu
Ski Jump
4
4
1
83%
of
58
201
A.Partridge
Fundamentals
Strings
Arrays
Mathematics
Algorithms
Numbers
8 kyu
Sum Mixed Array
88
88
41
91%
of
1,426
10,466
A.Partridge
Fundamentals
Strings
Numbers
Arrays
6 kyu
Counting Duplicates
1161
1161
224
89%
of
7,274
50,992
kgashok
3 Issues Reported
Fundamentals
Strings
7 kyu
Holiday II - Plane Seating
8
8
2
89%
of
70
254
A.Partridge
Fundamentals
Strings
Numbers
Arrays
8 kyu
Count the Monkeys!
182
182
67
89%
of
2,286
20,141
A.Partridge
1 Issue Reported
Algorithms
Arrays
Fundamentals
Ranges
Basic Language Features
Lists
Data Structures
8 kyu
The 'if' function
114
114
29
70%
of
829
8,632
user578387
3 Issues Reported
Fundamentals
Functional Programming
Declarative Programming
Higher-order Functions
Functions
Control Flow
Basic Language Features
6 kyu
Pairs of Bears
8
8
4
91%
of
66
221
A.Partridge
Fundamentals
Strings
Numbers
Arrays
7 kyu
Double Sort
11
11
8
90%
of
235
993
A.Partridge
Fundamentals
Strings
Numbers
Arrays
8 kyu
Alan Partridge II - Apple Turnover
16
16
15
82%
of
538
3,090
A.Partridge
Fundamentals
Numbers
Strings
Mathematics
Algorithms
6 kyu
Lattice Point Interpolation
5
5
3
90%
of
5
8
abiessu
Algorithms
Numbers
Integers
Arrays
8 kyu
The Wide-Mouthed frog!
17
17
7
87%
of
576
3,388
nbeck
Fundamentals
Strings
5 kyu
Recipe DSL
5
5
0
89%
of
9
22
phaul
Fundamentals
Domain Specific Languages
Declarative Programming
6 kyu
Amidakuji
34
34
9
94%
of
73
261
docgunthrop
Fundamentals
Arrays
6 kyu
Vowels Back
28
28
4
84%
of
97
353
A.Partridge
1 Issue Reported
Algorithms
Fundamentals
Strings
Arrays
Loops
Control Flow
Basic Language Features
5 kyu
Decimal to Factorial and Back
185
185
35
91%
of
266
1,556
g964
Algorithms
Numbers
Utilities
6 kyu
Ease the StockBroker
129
129
23
75%
of
228
1,069
g964
Fundamentals
Strings
7 kyu
Sum of odd numbers
947
947
164
84%
of
5,250
37,624
hhelwich
Fundamentals
Arrays
Lists
Data Structures
Numbers
Arithmetic
Mathematics
Algorithms
6 kyu
Help the bookseller !
430
430
84
84%
of
1,223
7,938
g964
Fundamentals
Algorithms
3 kyu
Upside-Down Numbers - Challenge Edition
116
116
16
91%
of
22
93
docgunthrop
Algorithms
Performance
6 kyu
Sort Arrays (Ignoring Case)
29
29
3
83%
of
230
3,886
ineiti
1 Issue Reported
Fundamentals
Arrays
Sorting
Algorithms
6 kyu
Taylor Series
6
6
1
86%
of
11
21
Paul Robertson
Fundamentals
Mathematics
Algorithms
Numbers
Lists
Data Structures
6 kyu
Moduli number system
58
58
8
85%
of
158
978
g964
Fundamentals
Numbers
5 kyu
Common Denominators
655
655
99
86%
of
964
6,483
g964
Fundamentals
Algorithms
Mathematics
Numbers
4 kyu
Sum of Intervals
474
474
101
91%
of
988
7,076
xDranik
2 Issues Reported
Algorithms
Aggregations
Arithmetic
Mathematics
Numbers
Integers
3 kyu
Alphametics Solver
114
114
25
94%
of
25
96
docgunthrop
Algorithms
Puzzles
Games
Performance
Optimization
Cryptography
Security
6 kyu
Who has the most money?
57
57
12
89%
of
193
1,564
MrAppa
Algorithms
Object-oriented Programming
6 kyu
Errors : histogram
37
37
18
90%
of
212
1,036
g964
Fundamentals
Strings
6 kyu
Positions Average
93
93
20
87%
of
223
1,040
g964
Fundamentals
Strings
6 kyu
Count the divisible numbers
70
70
7
84%
of
186
904
joh_pot
1 Issue Reported
Algorithms
Fundamentals
Numbers
Loading...
Confirm