12 Days of Christmas
            
                        
                    
                        
                    💎
                        
                    
        
            24 Game
            
                        
                    
                        
                    💎
                        
                    
        
            99 Bottles of Beer
            
                        
                    
                        
                    💎
                        
                    
        
            Abundant Numbers (Long)
            
                        
                    
                        
                    1st
                        
                    
        
            Arabic to Roman
            
                        
                    
                        
                    💎
                        
                    
        
            Arithmetic Numbers
            
                        
                    
                        
                    💎
                        
                    
        
            Arrows
            
                        
                    
                        
                    1st
                        
                    
        
            Ascending Primes
            
                        
                    
                        
                    💎
                        
                    
        
            ASCII Table
            
                        
                    
                        
                    💎
                        
                    
        
            Billiards
            
                        
                    
                        
                    💎
                        
                    
        
            brainfuck
            
                        
                    
                        
                    💎
                        
                    
        
            Card Number Validation
            
                        
                    
                        
                    1st
                        
                    
        
            Catalan Numbers
            
                        
                    
                        
                    4th
                        
                    
        
            Catalan’s Constant
            
                        
                    
                        
                    2nd
                        
                    
        
            Christmas Trees
            
                        
                    
                        
                    1st
                        
                    
        
            Collatz
            
                        
                    
                        
                    1st
                        
                    
        
            CSS Colors
            
                        
                    
                        
                    1st
                        
                    
        
            Cubes
            
                        
                    
                        
                    💎
                        
                    
        
            Day of Week
            
                        
                    
                        
                    1st
                        
                    
        
            DFA Simulator
            
                        
                    
                        
                    💎
                        
                    
        
            Diamonds
            
                        
                    
                        
                    3rd
                        
                    
        
            Divisors
            
                        
                    
                        
                    2nd
                        
                    
        
            Emirp Numbers
            
                        
                    
                        
                    1st
                        
                    
        
            Emirp Numbers (Long)
            
                        
                    
                        
                    💎
                        
                    
        
            Emojify
            
                        
                    
                        
                    💎
                        
                    
        
            Evil Numbers
            
                        
                    
                        
                    2nd
                        
                    
        
            Evil Numbers (Long)
            
                        
                    
                        
                    1st
                        
                    
        
            Factorial Factorisation
            
                        
                    
                        
                    💎
                        
                    
        
            Farey Sequence
            
                        
                    
                        
                    1st
                        
                    
        
            Fibonacci
            
                        
                    
                        
                    
                        
                    45th
        
            Fizz Buzz
            
                        
                    
                        
                    1st
                        
                    
        
            Foo Fizz Buzz Bar
            
                        
                    
                        
                    2nd
                        
                    
        
            Forsyth–Edwards Notation
            
                        
                    
                        
                    💎
                        
                    
        
            Fractions
            
                        
                    
                        
                    1st
                        
                    
        
            Game of Life
            
                        
                    
                        
                    2nd
                        
                    
        
            Gijswijt’s Sequence
            
                        
                    
                        
                    4th
                        
                    
        
            Happy Numbers
            
                        
                    
                        
                    1st
                        
                    
        
            Happy Numbers (Long)
            
                        
                    
                        
                    💎
                        
                    
        
            Hexdump
            
                        
                    
                        
                    💎
                        
                    
        
            Hilbert Curve
            
                        
                    
                        
                    2nd
                        
                    
        
            Intersection
            
                        
                    
                        
                    💎
                        
                    
        
            ISBN
            
                        
                    
                        
                    💎
                        
                    
        
            Jacobi Symbol
            
                        
                    
                        
                    💎
                        
                    
        
            Kaprekar Numbers
            
                        
                    
                        
                    💎
                        
                    
        
            Kolakoski Constant
            
                        
                    
                        
                    💎
                        
                    
        
            Kolakoski Sequence
            
                        
                    
                        
                    2nd
                        
                    
        
            Leap Years
            
                        
                    
                        
                    1st
                        
                    
        
            Levenshtein Distance
            
                        
                    
                        
                    💎
                        
                    
        
            Leyland Numbers
            
                        
                    
                        
                    💎
                        
                    
        
            Look and Say
            
                        
                    
                        
                    1st
                        
                    
        
            Lucky Numbers
            
                        
                    
                        
                    💎
                        
                    
        
            Lucky Tickets
            
                        
                    
                        
                    4th
                        
                    
        
            Mahjong
            
                        
                    
                        
                    💎
                        
                    
        
            Mandelbrot
            
                        
                    
                        
                    💎
                        
                    
        
            Maze
            
                        
                    
                        
                    💎
                        
                    
        
            Medal Tally
            
                        
                    
                        
                    💎
                        
                    
        
            Minesweeper
            9th4th🦄
                        
                    
        
            Morse Decoder
            
                        
                    
                        
                    💎
                        
                    
        
            Morse Encoder
            
                        
                    
                        
                    💎
                        
                    
        
            Musical Chords
            
                        
                    
                        
                    💎
                        
                    
        
            N Queens
            
                        
                    
                        
                    💎
                        
                    
        
            Niven Numbers
            
                        
                    
                        
                    8th
                        
                    
        
            Niven Numbers (Long)
            
                        
                    
                        
                    3rd
                        
                    
        
            Number Spiral
            
                        
                    
                        
                    💎
                        
                    
        
            Odious Numbers
            
                        
                    
                        
                    2nd
                        
                    
        
            Odious Numbers (Long)
            
                        
                    
                        
                    1st
                        
                    
        
            Ordinal Numbers
            
                        
                    
                        
                    1st
                        
                    
        
            Pangram Grep
            
                        
                    
                        
                    1st
                        
                    
        
            Partition Numbers
            
                        
                    
                        
                    1st
                        
                    
        
            Pascal’s Triangle
            
                        
                    
                        
                    5th
                        
                    
        
            Pernicious Numbers
            
                        
                    
                        
                    1st
                        
                    
        
            Pernicious Numbers (Long)
            
                        
                    
                        
                    1st
                        
                    
        
            Poker
            
                        
                    
                        
                    💎
                        
                    
        
            Polyominoes
            
                        
                    
                        
                    💎
                        
                    
        
            Prime Numbers
            
                        
                    
                        
                    1st
                        
                    
        
            Prime Numbers (Long)
            
                        
                    
                        
                    1st
                        
                    
        
            Proximity Grid
            
                        
                    
                        
                    💎
                        
                    
        
            QR Decoder
            
                        
                    
                        
                    💎
                        
                    
        
            Recamán
            
                        
                    
                        
                    1st
                        
                    
        
            Repeating Decimals
            
                        
                    
                        
                    💎
                        
                    
        
            Reverse Polish Notation
            
                        
                    
                        
                    2nd
                        
                    
        
            Reversi
            
                        
                    
                        
                    💎
                        
                    
        
            Rijndael S-box
            
                        
                    
                        
                    💎
                        
                    
        
            Rock-paper-scissors-Spock-lizard
            
                        
                    
                        
                    💎
                        
                    
        
            Roman to Arabic
            
                        
                    
                        
                    💎
                        
                    
        
            ROT13
            
                        
                    
                        
                    4th
                        
                    
        
            Rule 110
            
                        
                    
                        
                    2nd
                        
                    
        
            Scrambled Sort
            
                        
                    
                        
                    2nd
                        
                    
        
            Set
            
                        
                    
                        
                    💎
                        
                    
        
            Seven Segment
            
                        
                    
                        
                    💎
                        
                    
        
            SI Units
            
                        
                    
                        
                    💎
                        
                    
        
            Sierpiński Triangle
            
                        
                    
                        
                    💎
                        
                    
        
            Smith Numbers
            
                        
                    
                        
                    💎
                        
                    
        
            Spelling Numbers
            
                        
                    
                        
                    💎
                        
                    
        
            Star Wars GPT
            
                        
                    
                        
                    💎
                        
                    
        
            Star Wars Opening Crawl
            
                        
                    
                        
                    💎
                        
                    
        
            Sudoku
            
                        
                    
                        
                    💎
                        
                    
        
            Sudoku (Fill-in)
            
                        
                    
                        
                    💎
                        
                    
        
            Ten-pin Bowling
            
                        
                    
                        
                    1st
                        
                    
        
            Time Distance
            
                        
                    
                        
                    💎
                        
                    
        
            Tongue-twisters
            
                        
                    
                        
                    2nd
                        
                    
        
            Topological Sort
            
                        
                    
                        
                    💎
                        
                    
        
            Transpose Sentence
            
                        
                    
                        
                    1st
                        
                    
        
            United States
            
                        
                    
                        
                    2nd
                        
                    
        
            Vampire Numbers
            
                        
                    
                        
                    💎
                        
                    
        
            Zeckendorf Representation
            
                        
                    
                        
                    💎
                        
                    
        
            Zodiac Signs
            
                        
                    
                        
                    💎
                        
                    
        
            λ
            
                        
                    
                        
                    💎
                        
                    
        
            π
            
                        
                    
                        
                    4th
                        
                    
        
            τ
            
                        
                    
                        
                    2nd
                        
                    
        
            φ
            
                        
                    
                        
                    1st
                        
                    
        
            𝑒
            
                        
                    
                        
                    3rd