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    The Gray Code Decoder and Gray Code Encoder holes will go live in approximately . Why not try and solve them ahead of time?

    Rankings: Medals

    Most tied gold medals in Berry in chars.

    # Hole Total
    1st Niven Numbers 15
    2nd Pernicious Numbers 11
    3rd Fizz Buzz 10
    4th Collatz 9
    4th Leap Years 9
    6th Fibonacci 8
    6th Tower of Hanoi 8
    8th Niven Numbers (Long) 6
    8th Prime Numbers 6
    8th Prime Numbers (Long) 6
    11th Card Number Validation 5
    11th Evil Numbers 5
    11th Farey Sequence 5
    11th Lucky Numbers 5
    11th Pascal’s Triangle 5
    11th Sierpiński Triangle 5
    17th Ascending Primes 4
    17th Divisors 4
    17th Partition Numbers 4
    20th Abundant Numbers 3
    20th ASCII Table 3
    20th Continued Fractions 3
    20th Evil Numbers (Long) 3
    20th Inventory Sequence 3
    20th ISBN 3
    20th Mandelbrot 3
    20th Odious Numbers 3
    20th Odious Numbers (Long) 3
    20th Quine 3
    20th Recamán 3
    20th Roman to Arabic 3
    20th Van Eck Sequence 3
    33rd Arithmetic Numbers 2
    33rd Arrows 2
    33rd Day of Week 2
    33rd Foo Fizz Buzz Bar 2
    33rd Kolakoski Sequence 2
    33rd Leyland Numbers 2
    33rd Look and Say 2
    33rd Lucky Tickets 2
    33rd Number Spiral 2
    33rd Pernicious Numbers (Long) 2
    33rd Reverse Polish Notation 2
    33rd Set 2
    33rd Tic-tac-toe 2
    33rd Tongue-twisters 2
    33rd Trinomial Triangle 2
    33rd π 2
    33rd τ 2
    33rd 𝑒 2
    51st 12 Days of Christmas 1
    51st 24 Game 1
    51st 99 Bottles of Beer 1
    51st Abundant Numbers (Long) 1
    51st Arabic to Roman 1
    51st Billiards 1
    51st brainfuck 1
    51st Calendar 1
    51st Catalan Numbers 1
    51st Catalan’s Constant 1
    51st Christmas Trees 1
    51st CSS Colors 1
    51st Cubes 1
    51st DFA Simulator 1
    51st Diamonds 1
    51st Emirp Numbers 1
    51st Emirp Numbers (Long) 1
    51st Emojify 1
    51st Factorial Factorisation 1
    51st Forsyth–Edwards Notation 1
    51st Fractions 1
    51st Game of Life 1
    51st Gijswijt’s Sequence 1
    51st Happy Numbers 1
    51st Happy Numbers (Long) 1
    51st Hexdump 1
    51st Hilbert Curve 1
    51st Intersection 1
    51st Jacobi Symbol 1
    51st Kaprekar Numbers 1