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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
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
CSS Colors
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
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
Morse Decoder
Morse Encoder
Musical Chords
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
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
Calendar
Connect Four
Continued Fractions
Crossword
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CSS Grid
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Gray Code Decoder
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Highly Composite Numbers
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p-adic Expansion
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Hole
Golfer
Bytes
Time
Submitted
Collatz
yoikolover
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Lv0Sys
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snoozingnewt
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NicoBliss
102
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63
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87
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69
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82
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108
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98
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70
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70
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75
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74
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101
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70
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ThomasDelepine
95
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DrakeSeteraO
76
52ms
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rustykitty
83
21ms
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Collatz
mathieurodic
76
27ms
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EthanPatel01000101
116
16ms
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79
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Code-Coder-coder
74
19ms
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TJK-S
92
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Collatz
solisolu
74
20ms
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Collatz
Mr-McChicken
90
16ms
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Collatz
retrohun
74
20ms
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joll05
74
23ms
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BrunoVisnadi
69
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Collatz
miaoaixuan
73
22ms
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FortuiteMan
73
21ms
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pauljoohyunkim
74
19ms
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HETHAT
71
23ms
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Collatz
intgrah
70
18ms
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Collatz
Arkadios200
86
25ms
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Collatz
davidludwik2370
88
19ms
14 Sep 2025
Collatz
Matter1024
74
18ms
11 Sep 2025
Collatz
kmathis22
85
19ms
10 Sep 2025
Collatz
edsrzf
74
18ms
10 Sep 2025
Collatz
KapelMeister
150
13ms
5 Sep 2025
Collatz
imoxyg
80
23ms
29 Aug 2025
Collatz
arjunarya1
92
16ms
28 Aug 2025
Collatz
lelbal
71
19ms
26 Aug 2025
Collatz
BREMAUCY
73
19ms
24 Aug 2025
Collatz
Emutis
74
19ms
23 Aug 2025
Collatz
denisfouchard
74
18ms
23 Aug 2025
Collatz
Upload-and-View
89
16ms
20 Aug 2025
Collatz
xnor-gate
69
16ms
19 Aug 2025
Collatz
saturzay
79
25ms
19 Aug 2025
Collatz
katss2
70
19ms
17 Aug 2025
Collatz
robin-scragg
77
18ms
17 Aug 2025
Collatz
YAJUE114514
72
16ms
15 Aug 2025
Collatz
SectorCorruptor
103
24ms
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Collatz
wobblybits
74
19ms
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Collatz
qpwoeirut
70
16ms
10 Aug 2025