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12 Days of Christmas
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brainfuck
Calendar
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Catalan’s Constant
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Collatz
Connect Four
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CSS Colors
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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
Gray Code Decoder
Gray Code Encoder
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
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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)
Taxicab Numbers
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
Apéry’s Constant
Binary Lambda Calculus
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Ulam Sequence
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ALGOL 68
ArkScript
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
iogii
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
ZuzuScript
Hole
All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Connect Four
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
Gray Code Decoder
Gray Code Encoder
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)
Taxicab Numbers
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
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Ulam Sequence
Hole
Golfer
Chars
Time
Submitted
Multitap Input
CaedenHarper
119
510ms
8 hours ago
Partition Numbers
CaedenHarper
56
400ms
10 hours ago
Catalan Numbers
albanian-laundromat
41
382ms
14 hours ago
Nim
CaedenHarper
103
456ms
16 hours ago
Medal Tally
CaedenHarper
132
453ms
17 hours ago
Nim
pardouin
72
392ms
18 hours ago
24 Game
bizy-coder
164
1,835ms
19 hours ago
τ
MostParsingVex
83
3,037ms
25 hours ago
Divisors
retrohun
1,178
368ms
2 days ago
π
MostParsingVex
82
3,039ms
2 days ago
Nim
KatieLG
115
431ms
3 days ago
Poker
HumanoidCPU
461
483ms
3 days ago
Nim
ovs-code
93
443ms
3 days ago
QR Decoder
CaedenHarper
169
523ms
4 days ago
Nim
AlephSquirrel
105
492ms
4 days ago
Connect Four
CaedenHarper
213
680ms
5 days ago
Chess960 Decoder
ovs-code
145
530ms
5 days ago
Chess960 Encoder
Shanethegamer
155
613ms
5 days ago
Topological Sort
duckyluuk
98
672ms
6 days ago
Hexdump
kg583
🥇
87
729ms
6 days ago
τ
Steffan153
🥇
57
682ms
6 days ago
γ
retrohun
1,011
380ms
6 days ago
Tic-tac-toe
CaedenHarper
102
477ms
6 days ago
τ
retrohun
1,011
655ms
6 days ago
Spelling Numbers
JOrE20
410
556ms
7 days ago
Ulam Sequence
HumanoidCPU
76
1,736ms
7 days ago
Smooth Numbers
HumanoidCPU
162
4,595ms
8 days ago
Spelling Numbers
Steffan153
🥇
109
423ms
9 days ago
Set
HumanoidCPU
101
810ms
11 days ago
Card Number Validation
scpchicken
88
389ms
11 days ago
Divisors
scpchicken
54
407ms
11 days ago
SI Units
scpchicken
446
1,060ms
11 days ago
Catalan Numbers
scpchicken
41
385ms
11 days ago
Pernicious Numbers
scpchicken
38
401ms
11 days ago
Connect Four
KatieLG
268
795ms
11 days ago
Happy Numbers (Long)
sisyphus-ppcg
72
618ms
12 days ago
12 Days of Christmas
CaedenHarper
453
477ms
12 days ago
λ
scpchicken
183
661ms
14 days ago
CSS Colors
JayXon
🥇
63
496ms
14 days ago
CSS Colors
Steffan153
🥇
63
371ms
14 days ago
CSS Colors (Inverse)
kg583
69
703ms
15 days ago
CSS Colors
kg583
🥇
63
842ms
15 days ago
Mahjong
scpchicken
246
1,830ms
15 days ago
CSS Colors
pardouin
🥇
63
619ms
15 days ago
Polyominoes
scpchicken
243
857ms
15 days ago
Highly Composite Numbers
HumanoidCPU
171
474ms
15 days ago
Catalan’s Constant
kg583
🥈
61
445ms
16 days ago
γ
CaedenHarper
97
819ms
16 days ago
Kolakoski Sequence
sean-niemann
🥇
50
400ms
17 days ago
Spelling Numbers
CaedenHarper
204
630ms
17 days ago
Arabic to Roman
CaedenHarper
140
637ms
17 days ago
DFA Simulator
CaedenHarper
158
656ms
18 days ago
Connect Four
duckyluuk
🥈
103
514ms
18 days ago
Diamonds
CaedenHarper
82
459ms
18 days ago
Rock-paper-scissors-Spock-lizard
CaedenHarper
198
627ms
18 days ago
Kolakoski Constant
CaedenHarper
87
450ms
18 days ago
Mandelbrot
CaedenHarper
108
839ms
18 days ago
Repeating Decimals
CaedenHarper
🥇
79
415ms
18 days ago
Kaprekar Numbers
CaedenHarper
83
4,657ms
19 days ago
Sudoku (Fill-in)
CaedenHarper
296
772ms
19 days ago
Quine
hellopir2
🥈
27
467ms
19 days ago
Levenshtein Distance
scpchicken
93
507ms
20 days ago
Lucky Numbers
HumanoidCPU
67
532ms
20 days ago
Jacobi Symbol
GolfingSuccess
129
609ms
20 days ago
Inventory Sequence
Andrey2001
62
441ms
20 days ago
Catalan Numbers
Andrey2001
50
421ms
20 days ago
Vampire Numbers
Andrey2001
125
1,356ms
20 days ago
Lucky Numbers
Andrey2001
78
512ms
21 days ago
Evil Numbers
Andrey2001
44
411ms
21 days ago
Rijndael S-box
Andrey2001
223
632ms
21 days ago
N Queens
Andrey2001
173
654ms
21 days ago
Leyland Numbers
Andrey2001
82
431ms
21 days ago
Emirp Numbers (Long)
Andrey2001
111
838ms
21 days ago
Emirp Numbers
Andrey2001
110
547ms
21 days ago
Continued Fractions
Andrey2001
119
477ms
21 days ago
Day of Week
Andrey2001
91
495ms
21 days ago
Tutorial
LaconicLuna
158
660ms
21 days ago
Spelling Numbers
SirBogman
261
583ms
22 days ago
Poker
CaedenHarper
333
982ms
23 days ago
Lucky Tickets
GolfingSuccess
88
477ms
23 days ago
QR Decoder
codereport
149
651ms
24 days ago
Polyominoes
CaedenHarper
210
733ms
24 days ago
Intersection
codereport
116
424ms
25 days ago
Mahjong
CaedenHarper
283
682ms
25 days ago
Connect Four
HumanoidCPU
303
567ms
25 days ago
γ
Andrey2001
221
567ms
25 days ago
𝑒
Andrey2001
48
437ms
26 days ago
√2
Andrey2001
49
451ms
26 days ago
ln 2
Andrey2001
56
515ms
26 days ago
Connect Four
Shanethegamer
209
693ms
26 days ago
Mahjong
JOrE20
260
509ms
27 days ago
Odious Numbers
albanian-laundromat
39
421ms
27 days ago
Evil Numbers (Long)
albanian-laundromat
41
428ms
27 days ago
Evil Numbers
albanian-laundromat
39
379ms
27 days ago
Odious Numbers (Long)
albanian-laundromat
40
382ms
27 days ago
Proximity Grid
albanian-laundromat
125
442ms
27 days ago
Poker
Steffan153
💎
129
538ms
27 days ago
PalindromemordnilaP
Steffan153
🥇
63
485ms
2 Jun 2026
λ
Haksell
1,011
476ms
1 Jun 2026
Star Wars Opening Crawl
CaedenHarper
280
660ms
1 Jun 2026