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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
Arithmetic Numbers
Arrows
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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
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
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Pascal’s Triangle
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Pernicious Numbers (Long)
Poker
Polyominoes
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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
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
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
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Snake
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Tutorial
Hole
Golfer
Chars
Time
Submitted
Collatz
blaztoma
83
9ms
26 Sep 2025
Collatz
kmathis22
90
5ms
10 Sep 2025
Collatz
CaedenHarper
3,231
5ms
16 Aug 2025
Collatz
xsot
🥈
60
9ms
1 May 2025
Collatz
dokutan
72
5ms
10 Apr 2025
Collatz
DialFrost
66
83ms
7 Apr 2025
Collatz
kevinnaviapaiva
157
6ms
6 Mar 2025
Collatz
targrik
🥈
60
10ms
24 Dec 2024
Collatz
madeforlosers
74
5ms
22 Nov 2024
Collatz
Salutations45
70
8ms
21 Nov 2024
Collatz
edsrzf
72
8ms
27 Sep 2024
Collatz
Mabeloid
3,231
4ms
17 Sep 2024
Collatz
fischfood
78
6ms
15 Aug 2024
Collatz
ybrodala
81
5ms
14 Aug 2024
Collatz
Kokusui
73
5ms
22 Jul 2024
Collatz
HumanoidCPU
3,231
4ms
3 May 2024
Collatz
mrmena
90
6ms
19 Mar 2024
Collatz
kurkale6ka
3,231
4ms
3 Jan 2024
Collatz
RossBambrey
88
5ms
21 Nov 2023
Collatz
liviucerchez
96
6ms
20 Oct 2023
Collatz
snoozingnewt
90
6ms
11 Sep 2023
Collatz
msbranicky
99
6ms
8 Sep 2023
Collatz
AlexanderFair
96
6ms
11 Aug 2023
Collatz
jbirchevans
84
5ms
2 Aug 2023
Collatz
aminrnd
81
6ms
13 Jul 2023
Collatz
hossain-iqbal
82
5ms
13 Jul 2023
Collatz
piripasa
97
6ms
12 Jul 2023
Collatz
hossammohammed72
80
6ms
12 Jul 2023
Collatz
infostreams
78
5ms
12 Jul 2023
Collatz
ArtemBrovko
73
6ms
12 Jul 2023
Collatz
ahmedsliman
224
6ms
12 Jul 2023
Collatz
MeWhenI
69
5ms
28 May 2023
Collatz
janbehrens
67
9ms
17 May 2023
Collatz
Shanethegamer
68
9ms
17 May 2023
Collatz
arobson13
67
5ms
11 Apr 2023
Collatz
jzawadzki
77
6ms
25 Feb 2023
Collatz
StronkCheese
99
5ms
18 Feb 2023
Collatz
shaunjc
83
6ms
17 Feb 2023
Collatz
zelenovas
71
5ms
8 Feb 2023
Collatz
Betuaredead
69
5ms
5 Jan 2023
Collatz
retrohun
3,229
4ms
27 Dec 2022
Collatz
Bodo171
132
6ms
6 Dec 2022
Collatz
satutalo
74
5ms
22 Nov 2022
Collatz
jessegyger
93
6ms
5 Oct 2022
Collatz
stefangimmillaro
68
6ms
2 Oct 2022
Collatz
josh-h-90
72
5ms
13 Sep 2022
Collatz
tkr-sh
73
6ms
8 Sep 2022
Collatz
KrausRaus
70
6ms
7 Sep 2022
Collatz
JustinHodge
70
6ms
18 Aug 2022
Collatz
pschmid0
67
5ms
5 Aug 2022
Collatz
sisyphus-ppcg
61
10ms
14 Jul 2022
Collatz
KatieLG-Transpiler
4,230
4ms
24 Jun 2022
Collatz
Natanaelel
80
7ms
17 Jun 2022
Collatz
Meri-Dax
104
5ms
8 Jun 2022
Collatz
primo-ppcg
61
6ms
6 May 2022
Collatz
Lydxn
💎
59
9ms
6 May 2022
Collatz
GrayJoKing
🥈
60
9ms
6 May 2022
Collatz
didion0
80
5ms
5 May 2022
Collatz
emplv
🥈
60
9ms
5 May 2022
Collatz
sean-niemann
67
10ms
5 May 2022
Collatz
KatieLG
4,230
4ms
4 May 2022
Collatz
JRaspass
3,231
4ms
4 May 2022