中等
- Saddle Points
- Isogram
- Say
- Run Length Encoding
- ISBN Verifier
- Perfect Numbers
- Clock
- DOT DSL
- Hamming
- Simple Linked List
- Pascal’s Triangle
- Scrabble Score
- Pangram
- Paasio
- Nucleotide Count
- Luhn
- Largest Series Product
- Word Count
- Atbash Cipher
- Crypto Square
- Rotational Cipher
- Simple Cipher
- Rail Fence Cipher
- ETL
- Accumulate
- Acronym
- Sieve
- RNA Transcription
- Triangle
- Roman Numerals
- All Your Base
- Grade School
- Binary Search
- Robot Simulator
- Bracket Push
- Luhn From
- Queen Attack
- Bowling
- Sublist
- Space Age
- Luhn Trait
- Macros
- Allergies
- Variable Length Quantity
- Phone Number
- Wordy
- Tournament
- Custom Set
- Alphametics
- Two Bucket
- Pig Latin
- Diamond
- Spiral Matrix
- Palindrome Products
- Poker
- Grep
- Scale Generator
- Decimal
- Anagram
- Protein Translation
- Robot Name