What are collections?

Collections are a way for the community to curate groups of kata that can be trained on in a sequence. All collections are public. Eventually we will start to feature well crafted collections on other areas of the site.

How does this relate to bookmarks?

Bookmarking (starring) a kata is similar to collecting a kata, except that your bookmarks are kept private. They are also easily accessible via the top right bookmarks dropdown. If you intend to keep a list of kata you wish to work on later then bookmarks will serve you better.

Can I add to someone else's collection?

Only the warrior who created the collection can add to it. You are free to create your own collection with the same name. Kata are also searchable within the kata library by any collection name it is associated with. In this way you can easily find kata that span across multiple collections of the same name.

3969 Collections Found

practice_May_2018
3145 kyuchunyang802University of California, Berkeley
try these
7164 kyuprsmithRanken Technical College
problem kata
48295 kyu王者不可阻挡中国矿业大学
\\TODO
3144 kyubwDialogsDialogs
Level 6
25286 kyuGautam SarkarCodewars
ToDo
276 kyudralos#SBA
python case
284 kyu421024933liquidnetword.com
5 kyu
6135 kyuadamszabolcsCodecool
6 kyu
18286 kyuadamszabolcsCodecool
7 kyu
46327 kyuadamszabolcsCodecool
ToDo
4284 kyukurokawa
SQL
2135 kyuzuzik
Practice Katas
7226 kyumiahuynhHack Reactor
Done
27366 kyuxavikSpain
To do
8184 kyuveosLublin University of Technology
Todo
11225 kyuclouduanShanghai Jiao Tong University
OnlyC#Tasks
384 kyubondachUral State University
Reactjs
1016 kyusultanhqFindmypast
DoLater
6184 kyuSatXa
Python_Fundamentals
2208 kyuKetariCharles Sturt University
git six'in
9246 kyustefanomartinengoDevMountain
stuff
6235 kyubenante
Hmm
26274 kyuAnonGuyLoreto Coders
dataStruct
3122 kyuhuyhiNUPT
TODO
10204 kyumdublak
Clever solutions
6285 kyucliffkangLambdaSchool, Lambda School
Kata's To Do
5184 kyualexcurtisUniversity Of Lincoln
JS
7216 kyuxianminChina
math
2184 kyuyesmider
Level 7
72316 kyuGautam SarkarCodewars
regex
3116 kyuSimonCW
Format
51246 kyujuansgaitanApify
6kyu Collections
5216 kyuChae-EunKonkuk University
TODO
5255 kyuslou92
Math
35296 kyujuansgaitanApify
fun katas
21253 kyuzscheckOrigin Code Academy
Interested Topic
225 kyuPanSwiftnil school
8 kyu
271367 kyuJtrumanLaunch School
PHP
2204 kyuLexXxurioMoloko
not solved
3125 kyuabel91740FullStack 1610
8 kyu
23267 kyuGautam SarkarCodewars
Alotest
4236 kyumfauziAlodokter
C
3112 kyushaoxueheng
Bittini
2135 kyumarcocastellaniTeam Baiocchi
TrainingJS
1378 kyuSeanRParkerDevPoint Labs
bookmarks
2245 kyuCodeLemurvoiXen
JS
14235 kyuCodepeace
katas_to_try
19166 kyudonaldkellynorthcoders
dadda
2225 kyushivu
C_Tasks
9162 kyuGoodHumsterSovcombank
interesting
4256 kyujuroshNexit
DevCom
3176 kyuenceemZurich Service GmbH
Awesome
4124 kyuylxxBUCT
Essential
278 kyuSuperSurokMagora Systems
interesting
4225 kyuRaSpiritClearMinds
Awesome katas
376 kyusaurabhlambeESDS Software Solution
JavaScript
235 kyuLexXxurioMoloko
6 kata
3186 kyukanatbekMVI
To review
8247 kyuwominikinfoShare Academy
learn_classes
647 kyujohnkershawHOPE International School
One
3225 kyuEli_G
4k
2124 kyujohn1k
Faves
296 kyud8aninjaProtectWise
Clever
5194 kyujturiCode Wars: The Old Republic
solving
2215 kyuLiuChuang0059Wuhan University
fund
3146 kyuJordenRP
TODO
14224 kyuszmodry
todo
214 kyucode-obsessioncamarilla
To refactor
2117 kyuwominikinfoShare Academy
questions
484 kyureadytohackkSRM UNIVERSITY
6k
4186 kyujohn1k
Favs
2202 kyuFrBosquetIronhack
Sorting
12116 kyujuansgaitanApify
Weird
8245 kyuSatXa
ToDo
215 kyuvcamp
Generator
875 kyujuansgaitanHarvari
Geometry
4187 kyuDemonKingThe Coder School Palo Alto
Want to do
295 kyupmacleanEastside Preparatory School
Code Golf: Refactor These to the Least "Holes"
2146 kyuRoutinePoutineI'm an online and in person tutor for TOEFL, accent reduction, etc.
1
14236 kyushururup%clanname%
To finish
4205 kyurscheiweRVLTN Group, INC
regex
9146 kyucipha
Whiteboarding
5155 kyuchadwithuhcCoding Garden
ToTry
8173 kyumasongallandDevMountain
8byu
13248 kyujohnkershawHOPE International School
Fundamentals
7166 kyusjottermanBravo Wellness
ERROR
8196 kyuzuzik
To-Do
33275 kyuManish-GiriScryNet
ToDo List
18173 kyuDehelFnac (A3IS - Bluesoft Group)
Coach355's Java (6 kyu)
22256 kyuCoach355The 355:113 Club
TO DO
2106 kyupetre11Not Celebrities
List
5246 kyuxbytes
ToDo
222 kyuuge-xCodinglab srl
Coach 355's Java (5 kyu)
1295 kyuCoach355The 355:113 Club
Coach 355's Beginning Java
12248 kyuCoach355The 355:113 Club
BeginningJavaTasks
12298 kyuCoach355The 355:113 Club
d
2174 kyucarlloy
interesting
11173 kyulundibundiIT KPI
Linq
2216 kyulijixiang_92Google
Coach355's Java (7 kyu)
12217 kyuCoach355The 355:113 Club
ebb and flow
485 kyuAarya.bhatiaThe Shri Ram School - Aravali
kyu7
5107 kyuvpoonaip y t h o n b o i s
Optimization
50256 kyujuansgaitanHarvari
Recursion
19246 kyujuansgaitanHarvari
IH
216 kyubelIronhack
team practice
17245 kyuluochen1990Netease
To do
455 kyubelIronhack
Unsolved kata
2117 kyuandroPoo-brain
1, 2, 3, 4, 5
14224 kyujuansgaitanHarvari
骚操作
385 kyuHannesWangjizhi.im
wonderful keys
6196 kyuslzll杭州电子科技大学
1
3166 kyuPomkaizeSPBSTU
*
3246 kyuKristinaa78
ToDo
3215 kyuTMiddlehurstSparta Global
TODO
5233 kyulgpageUniversity of Pretoria
Ideas
9225 kyuarollafosca
Basic Syntax Explored
4148 kyuTheLamiaMiskatonic University
Bits
275 kyuDaarin
RegEx
3105 kyuDaarin
wcs
2144 kyuakababWCS
SmartAsses
296 kyuInsiyaaSVNIT
TDD Katas
4226 kyuPaulRitzmanCode Fellows
Linq
385 kyuRaskol
OOP
346 kyuadavis444Binghamton University
Python
16248 kyuM-GaddIronhack
Challenges
7227 kyucoderpyArmitage |||
Elizabeth R Collection
7357 kyuElizabethRSimplon Cahors
6 Kyu
10226 kyuM-GaddIronhack
TypeScript for Beginners
6188 kyuMaikelNabilMikeNabil.net - Washington, DC
ToDo
267 kyuWhatapalaverMakers Academy
JS_Interesting
44197 kyualotaibitRiyadh Data Geeks
Let's go
2108 kyupcdroIsolados
Tough
287 kyupcdroIsolados
iCantDoNow
2245 kyurunzhi214Meritco
deque
246 kyurunzhi214Meritco
Arrays
20255 kyugvenkat
best katas
2126 kyumjuncalacunaUniversity of South Wales
Fajne
18212 kyuaquinum
stats
4176 kyufalihazikrascu
To Do
2134 kyuferencDobiCodecool
challenge for me
285 kyuoneprogramapeHuazhong University of Science and Technology
TODO
28243 kyuFalkorX
Favorite
2135 kyusmileexxBoobs Inc
python
13246 kyuEwelinaKiCodeCool
123
215 kyutenhilltreeSelf
Core
4237 kyuhf0317
# todo
21204 kyurichkotzeFindmypast
Exercícios
4157 kyujoaoCrulhasUNESP/Tray
Still Don't Understand
275 kyucliffkangLambdaSchool, Lambda School
JS Practice
26254 kyucsjiangGrace Hopper 1610
string
8135 kyumzhqFDU
Games
11133 kyuCodeVortexAtypon
Da studiare
24256 kyuC_MinorAlten
javascript
275 kyucxqcoderYangtze Normal University
Favorites
27194 kyuzruFVitra
Israt Time
15147 kyucllamasDennis Publishing
Mathy
2204 kyualansunSkyridge
Stage #2
364 kyuaytsaNBSUIR
7 Kyu
12176 kyuM-GaddIronHack
Floating Point
314 kyumonadiusAsmolgam
miss
4125 kyuTaron
Ruby
14197 kyuBanjer71
kyu4
6186 kyutenhilltreeSelf
Dynamic programming
385 kyuadavis444Binghamton University
clever
245 kyumzhqFDU
TODO
10123 kyuTimethor7th Fetzer Valve
toDO
275 kyurunzhi214Meritco
123
4195 kyuvae84072840728406
ToDo
10244 kyudaniloza
Later
15122 kyuMalky
To solve
8112 kyuweirdoStewieConmio
Visionary April 2018
8246 kyucschuetzVisionaryDevs
other
274 kyumzhqFDU
katas
5126 kyuserg_ka
Later
16234 kyutinchoy94PU
April
138296 kyubrianmichaelEnterprise Innovations
MA Interview Prep
16257 kyukkavita92Makers Academy
unsolved
255 kyubirdggGeeklub
useful
2137 kyukimyyy
Challenging
14265 kyu_woojiahao_Singapore Polytechnic
Good for Training
3136 kyuboonitisFarality_BoonBoon
Tree
555 kyuDalaganIAP GmbH
Later
351 kyutrandMetropolia UAS
JS
2176 kyudavidrevoCompany
javastr
4135 kyuValtrikLux
hard
393 kyudengyforeverHope Studio
intressant
10174 kyulitemerafruktBlekinge Tekniska Högskola
int f(int)
3137 kyubrianchoGMEP15
eazy
2107 kyubrianchoGMEP15
Linked list
5126 kyuDalaganIAP GmbH
Easy
2157 kyuBinaryOperatorGaladhrim
Team Practice
17245 kyuxtongsbilibili
H
353 kyunt3m5p
My Kata Collection
16225 kyuLynхIga and Kōga clans
PHP
254 kyumikhawaCF2m
Needs Work
277 kyuksiebaldThinkful
C#
7253 kyuMaddiePComputershare
Javascript
5113 kyuMaddiePComputershare
Todo
265 kyualanionitaNorthcoders
Easy
2256 kyumartinrf
next T to 4
19254 kyuKaizenCoder75007FreeCodeCamp
JS Math Tasks
2226 kyuifgeny87⛄ SSM
C#
2168 kyujackmochNashville Software School
Trees
754 kyuaMonikerViresco
Javascript
245 kyuDalaganIAP GmbH
GG
253 kyusaitor
test
365 kyucrobilCDNetworks
JS Bout
247 kyuSKtaejiOrigin Code Academy
Interpreters
13193 kyuaMonikerViresco
8 Kyu
3148 kyuM-GaddIronHack
ToDo
3164 kyuRyanmanHylaine
REFACTOR!
2196 kyuRaireFullStack Academy
hs
4223 kyuecmadaoseniverse.com
Encryption
2165 kyujosampKeepcoding
Play Games
614 kyuaMonikerViresco
todo
4174 kyufacedancerXATKA
clever
286 kyuchromium52Université de Nice
To-do
4226 kyudonthedeveloperFullstack Academy
TO DO
4196 kyuArtem EfremovSpalah
mark
296 kyuGGlin98University Of Macau
My Kata Challenges
2117 kyujflores1634Code Fellows
Todo
375 kyuBedgarCodecool
RegExp
19187 kyudeweis
mt
4226 kyusteph-en-m
b-rad
14156 kyuutahriderAriix
Unsolved problems
4234 kyupatanjaliIIT Madras
Functional
118246 kyujuansgaitanCodeBase
String operation
2226 kyuwhr12Personal
sql
215 kyuValtrikLux
1kyu
19181 kyudelta4dbad delta
Haskell-1Kyu
10141 kyudelta4dbad delta
mail
27265 kyugzd_sln
Maths
8233 kyuVictorIrixIronhack
JS/Node
3126 kyuomt66
Krzysiek Czelendz
4136 kyuAlkagarJagiellonian University
sth_new
584 kyumzhqFDU
Collection
3224 kyuSwivelgamesBlueLogicTeam
crypt
255 kyuValtrikLux
Solve Later
21246 kyuBallislifeUni-Bremen
functional basics
311 kyucomonadklose brothers gmbh
Undone
3196 kyuocan4214Ankara University
fox-problem
10213 kyuiswanulumamOctagon
Good Problems
12255 kyufa7adDeadhood
SQL
214 kyuDevDom
Cpp
9265 kyuKim Jinho
Undo
11243 kyugladstoneBUPT
Interesantes
3224 kyuNatsEventbrite
etc
5235 kyuyosizadeh
Free time todos
10163 kyuB1tsVilnius University
bookmarks
2137 kyuvibhor08Delhi technological University
难点
275 kyudyd
coll.
395 kyupt64
Weekly KAta
3114 kyuElemiachJagiellonian University
SQL for Beginners
517 kyuMaikelNabilMikeNabil.net - Washington, DC
Interview JavaScript
29205 kyuN1nj@Frontend Masters
fazer depois
11245 kyuGui-LimaUFPE - cin
Next
2154 kyuAlexHolubkowLublin University of Technology
Kenjutsu
11136 kyuchaeokayhealthfinch
Current
7133 kyualexhexNone
todo
4194 kyufroj314
todo
3141 kyussk01UESTC
Trying
286 kyualtereg0alterego
Regexp
294 kyuBelisarius89Coventry University
play
252 kyujaronemyself, home
삽질 탈출
2115 kyuCoolMathYonsei University
nice
3105 kyudvir1144Company
TODO
262 kyujong
join
296 kyumukul09LNMIIT
Clever Solutions
6245 kyuutwooUtwoo.com
Nice
3225 kyulittlewolfTEI of Crete
Popular
9206 kyukgashokKGISL
ToDo
3196 kyujpacsaiUdacity Scholarship
Good for interviews
2135 kyuceottakiUtmost Wealth Solutions
不会
3224 kyuold zang jiangnan university
Collections
2147 kyuMaquaHTZC
learn later
21217 kyup2p8pppNational Taipei University
good
4226 kyuJack-D1
TODO
564 kyufarfoclozdzisiex org
kgj
4137 kyuhaeman11
Basics You Should Know
2178 kyuTor020Free Code Camp
unsolved
373 kyuamidalaRCSnorkel
need-to-solve
224 kyuBaklanІТ КПІ
to solve
221 kyumetalimMemo OÜ
CheckAgain
2117 kyuMarkusDegenEBAutomotive
After
345 kyuWildMachineDSTU
Great_C
7234 kyudanzhewujuUSST
Sudoku
284 kyuArtem EfremovSpalah
TDD
8224 kyuRaegerALPHA Camp
C
3218 kyuすずめ
TO DO
10136 kyuzuzik
Shell
3246 kyuNoisyMeadowBOC
Take home tests
2205 kyualexframe@domain-group
Kata I haven't solved yet (creative, right?)
453 kyugryanGrove City Area Senior High School
Interesting
34284 kyualekoz47Strath Haven High School
Python_collection1
285 kyuzxzhuHuaZhong Agricultural University
Kyu Five
5225 kyudungnv2602Company
queue
2143 kyuBlaze34Brocoders
linked lists
266 kyutrollknurrRambler&Co
brains
384 kyutrollknurrRambler&Co
todo
4123 kyujkaluzka
Level S
255 kyuutwooUtwoo.com
katas I trained on
30245 kyuScottRudigerHack Reactor
remain
2115 kyuRomesz
6 kyu
11236 kyuJtrumanLaunch School
CodeBase
7126 kyujuansgaitanCodeBase
python
5235 kyuVincent6207Shanghaitech University
Best
2113 kyuPolevoi VadimTechnical University of Moldova
Algo
396 kyuAssitanchicken-nuggets
learn_dictionaries
238 kyujohnkershawHOPE International School
learn_lists
4148 kyujohnkershawHOPE International School
Ka
4104 kyuharytfwhzu
.
2174 kyuPhysics131TGM
Interesting
2116 kyutino@solarmonkey
toDo
9236 kyuPapavero
Basic Coding
4316 kyualfoltranAl Foltran Team
dont done
2215 kyuCocoSorihome
Basic
13206 kyuYIZHUANG
my
3236 kyuDily LousyZJU
Code
3255 kyujeffrey1993National University of Singapore
pending
4124 kyunischalbcNovaders
Nice Ruby
3115 kyuCkarlos95School
Saved
9244 kyujackharvey1@newsuk
Revisit
13167 kyuswn78
js
5135 kyuscorpy
Houdini
2187 kyulichoudinitrimia
Come back to
4206 kyuarswaw@LakeMichiganCollege
1
5121 kyukunjinkaoGensokyo
Basic
2146 kyuSicher
8kyu
3148 kyuGSMix
learn from it
2214 kyuCanoANOUniversity of Toronto
IGCSE CS
7257 kyurandom_nameRoundabout Appreciation Society
Mi-Collection
4221 kyuhotmitOld Souls
toComplete
2202 kyuFlikoHard Knocks
Interesting
225 kyucyloMircronManFullstack Academy
Incomplete
4204 kyucyloMircronManFullstack Academy
Unsolved Kata
3186 kyudannyy07|BUFU|
Good to Review
5246 kyulhbrennanvikings.ur.dead
TODO
3145 kyuPhoenixAshesUTSA
Pending
3233 kyufgperianezNextail
Cool - To do
2194 kyurvmEquancy
TODO
2205 kyuNerRox
Interesting JavaScript
6115 kyuN1nj@Frontend Masters
React Katas
816 kyucjjenkinsonThe Politics of Dancing
Bloc
21297 kyuconcept-xBloc
PHP Fundamental
17256 kyuagainWAF2019
Favs
4147 kyualpha02x
Kyu Six
3156 kyudungnv2602My Own Heaven
Constructor Labs 7 kyu
10107 kyudmitrigrabovConstructor Labs
7 kyu
154297 kyuJtrumanLaunch School
Nice kata
30235 kyumgol
演算法
2235 kyuernest14674560Asia Pacific Microsystems
Expand Understanding of Python
2135 kyuofey404FDU(Fudan University)
Shit I want to do
254 kyuggenyaZip Code Wilmington
To Do
41274 kyuBridgeTheGapKnowre
future tasks
374 kyuVladRybinYekaterinburg
Algorithms
542 kyumetalimMemo OÜ
PHP String
14226 kyuagainWAF2019
DONE
5113 kyuMoeYTom