The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 hours. Why not try and solve them ahead of time?

UnderKoen (he/him) 🇳🇱

93,543

•

96,329

🦄2

•

💎66

•

🥇99

•

🥈82

•

🥉37

💎 SQL

⛳

126 / 126 Holes

🔣

1 / 64 Langs

🏆

76 / 109 Cheevos

📅

7 Jun 2022

12 Days of Christmas

3^rd

24 Game

3^rd

99 Bottles of Beer

2^nd

Abundant Numbers

5^th

Abundant Numbers (Long)

1^st

Arabic to Roman

3^rd

Arithmetic Numbers

3^rd

Arrows

2^nd

Ascending Primes

2^nd

ASCII Table

💎

Billiards

💎

brainfuck

💎

Calendar

💎

Card Number Validation

💎

Catalan Numbers

2^nd

Catalan’s Constant

1^st

Christmas Trees

8^th

Collatz

3^rd

Continued Fractions

💎

CSS Colors

2^nd

Cubes

💎

Day of Week

1^st

DFA Simulator

💎

Diamonds

6^th

Divisors

1^st

Emirp Numbers

2^nd

Emirp Numbers (Long)

3^rd

Emojify

4^th

Evil Numbers

2^nd

Evil Numbers (Long)

4^th

Factorial Factorisation

💎

Farey Sequence

💎

Fibonacci

5^th

Fizz Buzz

1^st

Foo Fizz Buzz Bar

4^th

Forsyth–Edwards Notation

3^rd

Fractions

2^nd

Game of Life

2^nd

Gijswijt’s Sequence

2^nd

Happy Numbers

2^nd

Happy Numbers (Long)

3^rd

Hexdump

💎

Hilbert Curve

💎

Intersection

1^st

Inventory Sequence

2^nd

ISBN

1^st

Jacobi Symbol

2^nd

Kaprekar Numbers

💎

Kolakoski Constant

1^st

Kolakoski Sequence

2^nd

Leap Years

2^nd

Levenshtein Distance

2^nd

Leyland Numbers

3^rd

ln 2

2^nd

Look and Say

💎

Lucky Numbers

2^nd

Lucky Tickets

💎

Mahjong

💎

Mandelbrot

2^nd

Maze

2^nd

Medal Tally

💎

Minesweeper

💎

Morse Decoder

2^nd

Morse Encoder

3^rd

Multitap Input

2^nd

Musical Chords

💎

N Queens

2^nd

Niven Numbers

2^nd

Niven Numbers (Long)

1^st

Number Spiral

2^nd

Odious Numbers

1^st

Odious Numbers (Long)

3^rd

Ordinal Numbers

1^st

PalindromemordnilaP

2^nd

Pangram Grep

1^st

Partition Numbers

💎

Pascal’s Triangle

7^th

Pernicious Numbers

1^st

Pernicious Numbers (Long)

4^th

Poker

💎

Polyominoes

2^nd

Prime Numbers

1^st

Prime Numbers (Long)

9^th

Proximity Grid

💎

QR Decoder

💎

Quine

1^st

Recamán

2^nd

Repeating Decimals

💎

Reverse Polish Notation

3^rd

Reversi

💎

Rijndael S-box

💎

Rock-paper-scissors-Spock-lizard

2^nd

Roman to Arabic

4^th

ROT13

2^nd

Rule 110

4^th

Scrambled Sort

🦄

Set

💎

Seven Segment

4^th

SI Units

2^nd

Sierpiński Triangle

4^th

Smith Numbers

3^rd

Spelling Numbers

💎

Star Wars GPT

💎

Star Wars Opening Crawl

2^nd

Sudoku

2^nd

Sudoku (Fill-in)

2^nd

Ten-pin Bowling

2^nd

Tic-tac-toe

💎

Time Distance

2^nd

Tongue-twisters

4^th

Topological Sort

💎

Tower of Hanoi

8^th

Transpose Sentence

3^rd

Trinomial Triangle

2^nd

United States

2^nd

Vampire Numbers

1^st

Van Eck Sequence

3^rd

Zeckendorf Representation

4^th

Zodiac Signs

3^rd

γ

1^st

λ

1^st

π

2^nd

τ

2^nd

φ

2^nd

√2

2^nd

𝑒

3^rd