Arabic to Roman
Billiards
brainfuck
Card Number Validation
Evil Numbers
Evil Numbers (Long)
Hexdump
Kaprekar Numbers
N Queens
611387
Odious Numbers
Odious Numbers (Long)
PalindromemordnilaP
Polyominoes
Proximity Grid
QR Decoder
Reverse Polish Notation
Reversi
Rijndael S-box
Roman to Arabic
Seven Segment
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Transpose Sentence
United States
Vampire Numbers
Zeckendorf Representation