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12 Days of Christmas
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99 Bottles of Beer
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brainfuck
Card Number Validation
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Catalan’s Constant
Christmas Trees
Collatz
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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
Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
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Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
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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
Apéry’s Constant
Binary Lambda Calculus
Calendar
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
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Hexagonal Spiral
Highly Composite Numbers
Multitap Input
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p-adic Expansion
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AWK
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D
Dart
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F#
Factor
Forth
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Janet
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VimL
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05AB1E
ALGOL 68
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
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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
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
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
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Zodiac Signs
plcc0
134
132ms
24 hours ago
Tower of Hanoi
KatieLG
325
94ms
39 hours ago
Hexagonal Spiral
bitsandbeyond
247
150ms
5 days ago
Levenshtein Distance
FortuiteMan
137
1,090ms
5 days ago
Calendar
GrayJoKing
134
187ms
9 days ago
Tower of Hanoi
sean-niemann
💎
46
120ms
11 days ago
γ
JOrE20
1,008
98ms
12 days ago
Tongue-twisters
prestosilver
531
95ms
12 days ago
λ
JOrE20
1,008
105ms
17 days ago
Arrows
snoozingnewt
116
168ms
20 days ago
Prime Numbers
FortuiteMan
23
87ms
25 days ago
Pernicious Numbers
snoozingnewt
22
134ms
26 days ago
Tower of Hanoi
GrayJoKing
🥈
47
96ms
26 days ago
Ascending Primes
sisyphus-ppcg
44
110ms
2 Dec 2025
Tower of Hanoi
CaedenHarper
3,582
112ms
1 Dec 2025
Taxicab Numbers
Natanaelel
60
1,298ms
1 Dec 2025
Tower of Hanoi
dokutan
195
141ms
1 Dec 2025
Spelling Numbers
dokutan
551
203ms
1 Dec 2025
Lucky Tickets
dokutan
2,519
335ms
1 Dec 2025
Happy Numbers
snoozingnewt
45
102ms
30 Nov 2025
Quine
snoozingnewt
🥇
17
89ms
30 Nov 2025
√2
KatieLG
1,007
110ms
30 Nov 2025
φ
KatieLG
1,004
99ms
30 Nov 2025
λ
KatieLG
1,007
99ms
30 Nov 2025
Van Eck Sequence
KatieLG
1,665
118ms
30 Nov 2025
Vampire Numbers
KatieLG
1,017
101ms
30 Nov 2025
Trinomial Triangle
KatieLG
1,838
109ms
30 Nov 2025
Tongue-twisters
KatieLG
484
103ms
30 Nov 2025
Smith Numbers
KatieLG
1,625
106ms
30 Nov 2025
Sierpiński Triangle
KatieLG
204
100ms
30 Nov 2025
Rule 110
KatieLG
2,042
140ms
30 Nov 2025
Recamán
KatieLG
785
106ms
30 Nov 2025
Prime Numbers (Long)
KatieLG
4,261
145ms
30 Nov 2025
Polyominoes
KatieLG
1,316
111ms
30 Nov 2025
Pernicious Numbers (Long)
KatieLG
13,992
172ms
30 Nov 2025
Pascal’s Triangle
KatieLG
693
98ms
30 Nov 2025
Partition Numbers
KatieLG
639
104ms
30 Nov 2025
Odious Numbers (Long)
KatieLG
1,641
108ms
30 Nov 2025
Niven Numbers (Long)
KatieLG
5,527
159ms
30 Nov 2025
N Queens
KatieLG
1,162
116ms
30 Nov 2025
Mandelbrot
KatieLG
570
115ms
30 Nov 2025
Lucky Numbers
KatieLG
3,698
140ms
30 Nov 2025
Look and Say
KatieLG
691
107ms
30 Nov 2025
Leyland Numbers
KatieLG
877
97ms
30 Nov 2025
Leap Years
KatieLG
598
102ms
30 Nov 2025
Kolakoski Sequence
KatieLG
341
105ms
30 Nov 2025
Kolakoski Constant
KatieLG
1,007
94ms
30 Nov 2025
Inventory Sequence
KatieLG
1,713
128ms
30 Nov 2025
Hilbert Curve
KatieLG
866
124ms
30 Nov 2025
Happy Numbers (Long)
KatieLG
549
93ms
30 Nov 2025
Gijswijt’s Sequence
KatieLG
218
94ms
30 Nov 2025
Foo Fizz Buzz Bar
KatieLG
1,514
109ms
30 Nov 2025
Fizz Buzz
KatieLG
255
94ms
30 Nov 2025
Factorial Factorisation
KatieLG
804
101ms
30 Nov 2025
Evil Numbers (Long)
KatieLG
1,645
97ms
30 Nov 2025
Emirp Numbers (Long)
KatieLG
995
100ms
30 Nov 2025
Divisors
KatieLG
834
95ms
30 Nov 2025
Diamonds
KatieLG
383
97ms
30 Nov 2025
Cubes
KatieLG
825
106ms
30 Nov 2025
Collatz
KatieLG
2,175
122ms
30 Nov 2025
Christmas Trees
KatieLG
289
92ms
30 Nov 2025
Catalan’s Constant
KatieLG
1,005
108ms
30 Nov 2025
Catalan Numbers
KatieLG
2,623
122ms
30 Nov 2025
Ascending Primes
KatieLG
446
104ms
30 Nov 2025
Arithmetic Numbers
KatieLG
24,533
180ms
30 Nov 2025
Abundant Numbers (Long)
KatieLG
820
108ms
30 Nov 2025
Abundant Numbers
KatieLG
162
95ms
30 Nov 2025
99 Bottles of Beer
KatieLG
1,274
108ms
30 Nov 2025
24 Game
KatieLG
5,076
154ms
30 Nov 2025
Fizz Buzz
WorseGolfer
128,174
280ms
27 Nov 2025
Fibonacci
Andrey2001
58
102ms
27 Nov 2025
Pangram Grep
snoozingnewt
32
96ms
27 Nov 2025
Pangram Grep
sisyphus-ppcg
32
95ms
27 Nov 2025
Taxicab Numbers
HumanoidCPU
4,165
88ms
27 Nov 2025
Catalan Numbers
dokutan
56
99ms
26 Nov 2025
Taxicab Numbers
Shanethegamer
4,165
87ms
26 Nov 2025
Tower of Hanoi
MeWhenI
74
106ms
24 Nov 2025
Abundant Numbers (Long)
MeWhenI
107
216ms
24 Nov 2025
Zodiac Signs
Schmitt-Very-Cool
928
244ms
22 Nov 2025
Fizz Buzz
JOrE20
44
109ms
22 Nov 2025