duckyluuk

12 Days of Christmas

8^th 18^th 20^th 5^th

24 Game

4^th 9^th 💎

99 Bottles of Beer

8^th 16^th 3^rd

Abundant Numbers

12^th 44^th 1^st

Abundant Numbers (Long)

10^th 11^th 4^th

Arabic to Roman

10^th 37^th 6^th 27^th 2^nd

Arithmetic Numbers

9^th 11^th 1^st

Arrows

9^th 13^th 4^th

Ascending Primes

11^th 18^th 3^rd

ASCII Table

10^th 17^th 4^th

Billiards

27^th

brainfuck

7^th 6^th 14^th 3^rd

Card Number Validation

4^th 1^st 9^th 💎

Catalan Numbers

3^rd 1^st 6^th

Catalan’s Constant

9^th 1^st 26^th 4^th

Christmas Trees

8^th 22^nd 12^th 2^nd

Collatz

18^th 58^th 7^th 28^th 3^rd

CSS Colors

21^st 1^st 28^th 2^nd

Cubes

7^th 17^th 3^rd

Day of Week

17^th 1^st 1^st 26^th 2^nd

DFA Simulator

9^th 19^th 💎 6^th 💎

Diamonds

7^th 15^th 💎

Divisors

16^th 155^th 1^st 1^st 3^rd

Emirp Numbers

14^th 9^th 10^th 5^th

Emirp Numbers (Long)

6^th 17^th 3^rd

Emojify

7^th 14^th 1^st

Evil Numbers

7^th 59^th 9^th 1^st 3^rd

Evil Numbers (Long)

16^th 38^th 8^th 32^nd 4^th

Factorial Factorisation

5^th 18^th 9^th 4^th

Farey Sequence

10^th 19^th 4^th 17^th 💎

Fibonacci

11^th 7^th 8^th 36^th 18^th 12^th 21^st 18^th 27^th 27^th 1^st 6^th 1^st 12^th 45^th 1^st 1^st 7^th 35^th

Fizz Buzz

9^th 1^st 1^st 7^th 15^th 5^th

Foo Fizz Buzz Bar

14^th 31^st 13^th 4^th

Forsyth–Edwards Notation

11^th 5^th 12^th 💎

Fractions

10^th 1^st 1^st 4^th 1^st

Game of Life

5^th 20^th 4^th 8^th 💎

Gijswijt’s Sequence

8^th 10^th 2^nd

Happy Numbers

10^th 7^th 35^th 2^nd

Happy Numbers (Long)

7^th 14^th 5^th

Hexdump

13^th 30^th 2^nd

Intersection

10^th 30^th 13^th 2^nd

Inventory Sequence

9^th 9^th 17^th 💎

ISBN

8^th 28^th 9^th 4^th

Jacobi Symbol

11^th 24^th 2^nd

Kaprekar Numbers

10^th 24^th 18^th 💎

Kolakoski Constant

8^th 3^rd 20^th 3^rd

Kolakoski Sequence

10^th 35^th 5^th 11^th 1^st

Leap Years

25^th 199^th 92^nd 4^th

Levenshtein Distance

6^th 12^th 💎

Leyland Numbers

13^th 1^st 2^nd

ln 2

16^th 1^st 4^th

Look and Say

12^th 13^th 1^st 9^th 24^th 💎

Lucky Numbers

7^th 11^th 3^rd

Lucky Tickets

14^th 21^st

Mahjong

9^th 12^th

Maze

8^th 14^th

Medal Tally

3^rd 25^th 5^th 1^st 2^nd

Morse Decoder

5^th 8^th 2^nd

Morse Encoder

6^th 8^th 2^nd

Musical Chords

7^th 13^th 💎

N Queens

3^rd 13^th 6^th 1^st

Niven Numbers

25^th 1^st 31^st 1^st

Niven Numbers (Long)

15^th 14^th 29^th 2^nd

Number Spiral

5^th 4^th 2^nd

Odious Numbers

8^th 48^th 8^th 1^st 4^th

Odious Numbers (Long)

8^th 34^th 9^th 1^st 4^th

Ordinal Numbers

13^th 3^rd 4^th

PalindromemordnilaP

3^rd 17^th 5^th 6^th 💎

Pangram Grep

24^th 39^th 24^th 4^th

Pascal’s Triangle

16^th 37^th 33^rd 4^th

Pernicious Numbers

31^st 73^rd 4^th

Pernicious Numbers (Long)

13^th 1^st 4^th

Poker

3^rd 8^th 💎

Polyominoes

6^th 8^th 💎

Prime Numbers

28^th 74^th 75^th 11^th 40^th 1^st

Prime Numbers (Long)

20^th 59^th 34^th 11^th 41^st 1^st

Proximity Grid

7^th 11^th

QR Decoder

6^th 13^th

Quine

1^st 1^st 25^th 27^th 1^st 177^th 19^th 1^st 55^th 1^st

Recamán

11^th 32^nd 18^th 4^th

Repeating Decimals

13^th 30^th 💎

Reverse Polish Notation

11^th 47^th 24^th 4^th

Reversi

6^th 8^th

Rijndael S-box

9^th 18^th 💎

Rock-paper-scissors-Spock-lizard

7^th 11^th 💎

Roman to Arabic

8^th 24^th 1^st 💎

Rule 110

18^th 41^st 3^rd

Seven Segment

9^th 26^th 2^nd

SI Units

7^th 13^th

Sierpiński Triangle

12^th 18^th 29^th 2^nd

Smith Numbers

8^th 14^th 3^rd

Spelling Numbers

15^th 72^nd 19^th 💎

Star Wars Opening Crawl

10^th 21^st 💎

Sudoku

7^th 16^th

Sudoku (Fill-in)

6^th 12^th

Ten-pin Bowling

11^th 20^th

Time Distance

9^th 15^th 💎

Tongue-twisters

9^th 16^th 5^th

Transpose Sentence

7^th 3^rd 8^th 1^st

United States

10^th 19^th 20^th 2^nd

Vampire Numbers

5^th 5^th 3^rd

Van Eck Sequence

6^th 23^rd 1^st 3^rd

Zeckendorf Representation

3^rd 18^th 1^st 5^th

Zodiac Signs

8^th 17^th 💎

10^th 1^st 5^th 17^th 2^nd

8^th 4^th 20^th 3^rd

7^th 7^th 11^th 1^st 5^th 7^th 2^nd

7^th 7^th 11^th 55^th 4^th 5^th 2^nd

13^th 13^th 38^th 25^th 4^th

√2

15^th 32^nd 11^th 1^st 💎

𝑒

14^th 1^st 7^th 1^st 3^rd

duckyluuk (he/him) 🇳🇱

Holes Authored