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Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.

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Ad
1 kyu
7×7 Skyscrapers
1,948JohanWiltink
Algorithms
Games
Performance
2 kyu
Evaluate mathematical expression
9,398ankr
Mathematics
Parsing
Algorithms
2 kyu
Odd + Even = Odd? Prove it!
712AJFarmar
Number Theory
Fundamentals
3 kyu
GET TO THE CHOPPA!
1,085sazlin
Games
Puzzles
Algorithms
Graph Theory
3 kyu
The builder of things
991jhoffner
Metaprogramming
Domain Specific Languages
Algorithms
Language Features
3 kyu
Alphabetic Anagrams
6,118Azuaron
Mathematics
Logic
Strings
Algorithms
2 kyu
Regular expression parser
982phaul
Parsing
Functional Programming
Algorithms
2 kyu
Regular Expression - Check if divisible by 0b111 (7)
2,160Hacker Sakana
Puzzles
Regular Expressions
Strings
Algorithms
Retired
Calculator (retired)
11,547obrok
Algorithms
Parsing
Logic
Strings
Expressions
Basic Language Features
Fundamentals
3 kyu
Prime Ant - Crazy Version
46anter69
Performance
Memoization
Algorithms
4 kyu
Connect Letters
66smiks
Algorithms
Dynamic Programming
Puzzles
3 kyu
Count Connectivity Components
490ecolban
Strings
Algorithms
Graph Theory
2 kyu
Whitespace Interpreter
1,093jacobb
Esoteric Languages
Interpreters
Algorithms
3 kyu
Esolang Interpreters #4 - Boolfuck Interpreter
1,976donaldsebleung
Esoteric Languages
Interpreters
Algorithms
Tutorials
3 kyu
Papers, Please
765docgunthrop
Object-oriented Programming
Games
Regular Expressions
Fundamentals
3 kyu
Find the cheapest path
543FArekkusu
Algorithms
Performance
3 kyu
Make a spiral
14,444Bugari
Algorithms
Arrays
Logic
2 kyu
Gerrymander Solver
306docgunthrop
Puzzles
Logic
Algorithms
2 kyu
Hard Sudoku Solver
846f.rodrigues
Games
Algorithms
Game Solvers
Puzzles
3 kyu
Sudoku Solver
13,729pineappleclock
Games
Game Solvers
Algorithms
3 kyu
Alphametics Solver
412docgunthrop
Puzzles
Performance
Cryptography
Algorithms
3 kyu
Hard Sudoku Solver
1,016Marx314
Algorithms
Games
Puzzles
Game Solvers
2 kyu
6 By 6 Skyscrapers
2,428FrankK
Mathematics
Puzzles
Games
Arrays
Matrix
Algorithms
3 kyu
N-Parasitic Numbers Ending in N
901LesRamer
Algorithms
Mathematics
Puzzles
7 kyu
Euclidean distance in n dimensions
1,613kingcobra
Mathematics
Algorithms
Fundamentals
1 kyu
To BrainFuck Transpiler
205ZED.CWT
Esoteric Languages
Parsing
Compilers
1 kyu
Four Pass Transport
232docgunthrop
Puzzles
Games
Logic
Algorithms
Beta
Check and Mate?
482Zirgion
Status:Waiting for issues to be resolved
Estimated Rank:
2 kyu
Logic
Arrays
Data Structures
Games
Algorithms
3 kyu
Rail Fence Cipher: Encoding and Decoding
8,449darrentburgess
Algorithms
Ciphers
Cryptography
Strings
Security
3 kyu
Screen Locking Patterns
4,567rsalgado
Mathematics
Combinatorics
Geometry
Algorithms
Graph Theory
3 kyu
Stargate SG-1: Cute and Fuzzy (Improved version)
558Blind4Basics
Algorithms
Data Structures
Graph Theory
2 kyu
Debugger
623Dundee
Metaprogramming
2 kyu
Full Metal Chemist #1: build me...
344Blind4Basics
Object-oriented Programming
Fundamentals
3 kyu
Blobservation
372docgunthrop
Logic
Games
Object-oriented Programming
Performance
Algorithms
1 kyu
Multisize Nonogram Solver
160Avanta
Algorithms
Logic
Games
Game Solvers
2 kyu
15x15 Nonogram Solver
292Bubbler
Puzzles
Games
Performance
Game Solvers
3 kyu
Bloxorz Solver
423docgunthrop
Games
Puzzles
Game Solvers
Algorithms
2 kyu
Transforming Maze Solver
385docgunthrop
Algorithms
Arrays
Performance
Puzzles
3 kyu
Centre of attention
825geoffp
Algorithms
Arrays
2 kyu
Game of Go
381edwin0258
Games
Performance
Algorithms
1 kyu
Square sums
573metalim
Algorithms
Mathematics
1 kyu
Mine Sweeper
1,234myjinxin2015
Puzzles
Game Solvers
1 kyu
BECOME IMMORTAL
3,007Voile
Puzzles
Dynamic Programming
Performance
Algorithms
1 kyu
Sliding Puzzle Solver
1,062docgunthrop
Puzzles
Genetic Algorithms
Game Solvers
Algorithms
2 kyu
Insane Coloured Triangles
3,744Bubbler
Puzzles
Performance
Mathematics
2 kyu
Ludicrous Coloured Triangles
468rooflack
Puzzles
Mathematics
Algorithms
3 kyu
Mahjong - #2 Seven-pairs
110Hacker Sakana
Games
Logic
Algorithms
3 kyu
Binomial Expansion
6,032TheDoctor
Mathematics
Algebra
Algorithms
2 kyu
Blaine is a pain
474dinglemouse
Fundamentals
3 kyu
Insane Tri-Bicolor Tiling
80Bubbler
Algorithms
Fundamentals
Mathematics
Performance
3 kyu
Insane Circular Limited Sums
62Bubbler
Algorithms
Mathematics
3 kyu
Fabergé Easter Eggs crush test
1,777Ivana
Mathematics
Dynamic Programming
Performance
Algorithms
3 kyu
RoboScript #4 - RS3 Patterns to the Rescue
541donaldsebleung
Esoteric Languages
Interpreters
Functional Programming
Algorithms
3 kyu
Plants and Zombies
682docgunthrop
Logic
Games
Game Solvers
Algorithms
Object-oriented Programming
3 kyu
The Lift
3,281dinglemouse
Algorithms
Queues
Data Structures
1 kyu
Faberge easter eggs crush test [linear]
1,521ice1000
Performance
Algorithms
Mathematics
3 kyu
Permutation-free Strings
98Bubbler
Algorithms
Dynamic Programming
Mathematics
4 kyu
Egg Drops
95ecolban
Recursion
Dynamic Programming
Puzzles