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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
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Happy Numbers (Long)
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Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
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Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
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Morse Encoder
Musical Chords
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
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Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
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Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
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
Tower of Hanoi
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
Binary Lambda Calculus
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Multitap Input
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
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Hole
Golfer
Bytes
Time
Submitted
Collatz
KatieLG
2,197
167ms
30 Nov 2025
Collatz
CarterStroik
88
206ms
12 Nov 2025
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blaztoma
61
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55
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170ms
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antimon2
💎
45
275ms
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Mabeloid
3,234
169ms
17 Sep 2024
Collatz
sidok
75
230ms
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Collatz
alemelis
54
255ms
5 Sep 2024
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tunasplam
85
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sean-niemann
50
271ms
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masflam
73
288ms
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72
201ms
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172ms
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48
273ms
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72
290ms
27 Feb 2024
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72
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11 Jan 2024
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stellartux
67
246ms
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janbehrens
64
311ms
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madeforlosers
73
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ovs-code
50
389ms
24 Oct 2023
Collatz
DialFrost
51
253ms
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Collatz
wearsunscreen
83
186ms
19 Oct 2023
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snoozingnewt
67
293ms
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bciccarelli
71
233ms
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Collatz
davbass
70
224ms
25 Aug 2023
Collatz
aDwarfNamedUrist
75
287ms
12 Jul 2023
Collatz
rollershutter
69
255ms
7 Jul 2023
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Andriamanitra
59
257ms
26 Apr 2023
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devinallen
64
241ms
18 Mar 2023
Collatz
Shanethegamer
52
471ms
9 Mar 2023
Collatz
StronkCheese
87
217ms
18 Feb 2023
Collatz
MeWhenI
61
275ms
15 Feb 2023
Collatz
retrohun
3,234
172ms
27 Dec 2022
Collatz
Steffan153
50
287ms
10 Dec 2022
Collatz
HopelessSoap
73
211ms
17 Oct 2022
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jarodlam
64
268ms
7 Oct 2022
Collatz
Codsilla
52
266ms
1 Jul 2022
Collatz
KatieLG-Transpiler
4,280
167ms
23 Jun 2022
Collatz
czylabsonasa
57
237ms
18 Jun 2022
Collatz
rokasveitas
81
217ms
16 May 2022
Collatz
MarcMush
70
264ms
13 May 2022
Collatz
Lydxn
🥈
48
283ms
5 May 2022
Collatz
JayXon
50
254ms
5 May 2022
Collatz
HPWiz
50
249ms
4 May 2022
Collatz
shellbertt
66
275ms
4 May 2022
Collatz
JRaspass
3,237
180ms
4 May 2022