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><>
ALGOL 68
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
Groovy
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
Scheme
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
Experimental Language
05AB1E
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Hole
All
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
Continued Fractions
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
Multitap Input
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Collatz
scpchicken
36
9ms
26 mins ago
Collatz
fantaize
91
126ms
67 mins ago
Collatz
edsrzf
56
11ms
20 hours ago
Collatz
Steffan153
🥇
52
965ms
21 hours ago
Collatz
edsrzf
🥇
60
5ms
21 hours ago
Collatz
edsrzf
🥇
52
855ms
21 hours ago
Collatz
edsrzf
🥇
74
16ms
21 hours ago
Collatz
Aquateraneal
86
17ms
44 hours ago
Collatz
kTheLemon
76
5ms
3 days ago
Collatz
NickTheEASDude
44
176ms
3 days ago
Collatz
Apfelvater
83
19ms
5 days ago
Collatz
milktea-ish
79
19ms
5 days ago
Collatz
kg583
110
41ms
6 days ago
Collatz
tsschepens
78
2ms
6 days ago
Collatz
snoozingnewt
🥇
74
18ms
6 days ago
Collatz
emgordon154
83
15ms
6 days ago
Collatz
Tycho-Nunnink
75
126ms
7 days ago
Collatz
vyx77
110
60ms
8 days ago
Collatz
SectorCorruptor
78
25ms
9 days ago
Collatz
Languag3
🥉
68
16ms
9 days ago
Collatz
parthm2005
83
16ms
10 days ago
Collatz
FranklinJiaChen
84
6ms
10 days ago
Collatz
albanian-laundromat
69
94ms
10 days ago
Collatz
albanian-laundromat
145
121ms
10 days ago
Collatz
Lv0Sys
56
15ms
11 days ago
Collatz
Steffan153
🥇
96
120ms
11 days ago
Collatz
RodAlc24
74
19ms
11 days ago
Collatz
Steffan153
🥇
84
68ms
11 days ago
Collatz
GolfingSuccess
110
41ms
12 days ago
Collatz
Ignacio6D2
76
19ms
12 days ago
Collatz
pph-2203
84
16ms
12 days ago
Collatz
ImanolCiganda
81
25ms
12 days ago
Collatz
Deneb999
104
24ms
12 days ago
Collatz
jesuscbm
75
19ms
12 days ago
Collatz
firegene
70
19ms
13 days ago
Collatz
JOrE20
71
16ms
13 days ago
Collatz
JOrE20
27
149ms
13 days ago
Collatz
FranklinJiaChen
169
82ms
13 days ago
Collatz
piano-miles
92
411ms
13 days ago
Collatz
muser-logiccpu
76
25ms
14 days ago
Collatz
GolfingSuccess
🥇
74
17ms
14 days ago
Collatz
frankgraziano
75
16ms
15 days ago
Collatz
dokutan
83
20ms
15 days ago
Collatz
FranklinJiaChen
81
9ms
15 days ago
Collatz
kg583
🥈
82
17ms
16 days ago
Collatz
kg583
🥇
76
12ms
16 days ago
Collatz
GrayJoKing
🥇
74
16ms
16 days ago
Collatz
Steffan153
🥇
74
16ms
16 days ago
Collatz
DialFrost
🥇
74
16ms
16 days ago
Collatz
CaedenHarper
5,235
57ms
16 days ago
Collatz
KatieLG
3,234
3ms
17 days ago
Collatz
KatieLG
5,280
13ms
17 days ago
Collatz
chenyuan33
87
22ms
17 days ago
Collatz
C32ardash
118
1,433ms
18 days ago
Collatz
Shengxuan-Zhang
87
2ms
18 days ago
Collatz
Shengxuan-Zhang
108
58ms
18 days ago
Collatz
Shengxuan-Zhang
66
278ms
18 days ago
Collatz
denkyuu1
79
20ms
20 days ago
Collatz
spidunno
60
11ms
21 days ago
Collatz
JOrE20
3,266
12ms
21 days ago
Collatz
GolfingSuccess
56
905ms
21 days ago
Collatz
blaztoma
70
21ms
22 days ago
Collatz
JOrE20
86
2ms
23 days ago
Collatz
rotemkm
74
19ms
24 days ago
Collatz
solisolu
80
3ms
24 days ago
Collatz
dokutan
79
6ms
25 days ago
Collatz
Heathcorp
101
125ms
25 days ago
Collatz
snoozingnewt
71
18ms
25 days ago
Collatz
Flekay
71
17ms
26 days ago
Collatz
Steffan153
91
37ms
26 days ago
Collatz
denkyuu1
56
44ms
27 days ago
Collatz
Steffan153
75
5ms
27 days ago
Collatz
elgan65536
91
131ms
10 Feb 2026
Collatz
HunterC14
93
26ms
10 Feb 2026
Collatz
bpharaldsson
87
353ms
9 Feb 2026
Collatz
retrohun
4,233
1ms
9 Feb 2026
Collatz
Yewzir
71
5ms
9 Feb 2026
Collatz
dokutan
78
71ms
8 Feb 2026
Collatz
frosster
77
5ms
8 Feb 2026
Collatz
dokutan
89
425ms
8 Feb 2026