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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
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Billiards
brainfuck
Card Number Validation
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Collatz
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Cubes
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DFA Simulator
Diamonds
Divisors
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Emirp Numbers (Long)
Emojify
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Evil Numbers (Long)
Factorial Factorisation
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Fibonacci
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Foo Fizz Buzz Bar
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Fractions
Game of Life
Gijswijt’s Sequence
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Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
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Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
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Morse Encoder
Musical Chords
N Queens
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Niven Numbers (Long)
Number Spiral
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Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
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Pernicious Numbers (Long)
Poker
Polyominoes
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Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
ROT13
Rule 110
Scrambled Sort
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
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
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CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
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Gray Code Encoder
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Highly Composite Numbers
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p-adic Expansion
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QR Encoder
Quadratic Formula
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Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Catalan’s Constant
CaedenHarper
392
1,102ms
18 days ago
Catalan’s Constant
stefangimmillaro
🥉
222
706ms
24 days ago
Catalan’s Constant
Yewzir
1,028
501ms
2 Oct 2025
Catalan’s Constant
Schmitt-Very-Cool
1,030
457ms
26 Sep 2025
Catalan’s Constant
Shanethegamer
1,028
340ms
25 Sep 2025
Catalan’s Constant
sean-niemann
235
549ms
24 Sep 2025
Catalan’s Constant
dokutan
233
435ms
24 Sep 2025
Catalan’s Constant
jared-hughes
276
762ms
24 Sep 2025
Catalan’s Constant
KatieLG
1,045
351ms
24 Sep 2025
Catalan’s Constant
MrGagnonHPS
1,068
301ms
9 May 2025
Catalan’s Constant
ravnskjaer
687
484ms
30 Dec 2024
Catalan’s Constant
Mabeloid
1,075
329ms
17 Sep 2024
Catalan’s Constant
bac0id
1,065
522ms
26 Jun 2024
Catalan’s Constant
Jacob385
666
406ms
15 Apr 2024
Catalan’s Constant
madeforlosers
1,065
325ms
15 Dec 2023
Catalan’s Constant
HumanoidCPU
1,065
520ms
17 Nov 2023
Catalan’s Constant
carlsoncorey16
1,068
590ms
29 Oct 2023
Catalan’s Constant
jccummi1
1,068
420ms
29 Oct 2023
Catalan’s Constant
ped-renguin
1,066
312ms
29 Oct 2023
Catalan’s Constant
aevykt
1,072
306ms
29 Oct 2023
Catalan’s Constant
Mch47
1,069
309ms
29 Oct 2023
Catalan’s Constant
tigerdan2
1,062
323ms
12 Oct 2023
Catalan’s Constant
crizin
687
370ms
15 Sep 2023
Catalan’s Constant
msbranicky
1,067
329ms
15 Sep 2023
Catalan’s Constant
h3ra993huskp
332
329ms
5 Sep 2023
Catalan’s Constant
TaserTheFox
1,071
518ms
26 May 2023
Catalan’s Constant
retrohun
1,075
326ms
27 Dec 2022
Catalan’s Constant
KatieLG-Transpiler
1,073
336ms
23 Jun 2022
Catalan’s Constant
bwat2
557
1,580ms
8 Feb 2022
Catalan’s Constant
Lydxn
🥇
186
459ms
21 Jan 2022
Catalan’s Constant
primo-ppcg
🥇
186
830ms
20 Jan 2022
Catalan’s Constant
neihousaigaai
308
682ms
5 Jan 2022
Catalan’s Constant
MeWhenI
273
441ms
3 Jan 2022
Catalan’s Constant
janbehrens
345
1,695ms
2 Jan 2022