Recent Solutions
Achievements
Cheevos
Golfers
Solutions
All Holes
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
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
Apéry’s Constant
Binary Lambda Calculus
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
All Languages
><>
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
05AB1E
ALGOL 68
APL
ArkScript
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
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
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
ALGOL 68
APL
ArkScript
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
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
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
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
Bytes
Time
Submitted
Cubes
KatieLG
216
12ms
a min ago
π
itsquasiab
1,040
56ms
10 mins ago
Repeating Decimals
Matter1024
216
67ms
17 mins ago
Arithmetic Numbers
blaztoma
🥇
47
732ms
27 mins ago
Fizz Buzz
itsquasiab
143
987ms
39 mins ago
Mandelbrot
codewrite
217
426ms
41 mins ago
12 Days of Christmas
itsquasiab
615
992ms
67 mins ago
ln 2
primo-ppcg
💎
117
176ms
114 mins ago
Catalan’s Constant
primo-ppcg
💎
130
100ms
115 mins ago
𝑒
primo-ppcg
💎
94
17ms
117 mins ago
√2
primo-ppcg
💎
120
208ms
117 mins ago
φ
primo-ppcg
💎
117
92ms
118 mins ago
τ
primo-ppcg
💎
120
175ms
118 mins ago
π
primo-ppcg
💎
120
195ms
2 hours ago
Rock-paper-scissors-Spock-lizard
nemoyatpeace
303
10ms
2 hours ago
Time Distance
albanian-laundromat
💎
427
8ms
2 hours ago
Vampire Numbers
aliakseikalosha
354
3,619ms
2 hours ago
Pernicious Numbers (Long)
nemoyatpeace
104
30ms
2 hours ago
Look and Say
Nxllpointer
32
4ms
3 hours ago
Number Spiral
edsrzf
152
7ms
3 hours ago
Evil Numbers
Matter1024
41
10ms
3 hours ago
Calendar
edsrzf
💎
256
1,349ms
3 hours ago
Set
blaztoma
124
29ms
4 hours ago
Calendar
ragonscreen
199
10ms
4 hours ago
United States
HumanoidCPU
1,027
441ms
5 hours ago
Proximity Grid
canissimia
💎
121
37ms
6 hours ago
Hilbert Curve
Melvovin
5,136
364ms
6 hours ago
brainfuck
Melvovin
489
438ms
6 hours ago
Fibonacci
Melvovin
107
407ms
7 hours ago
Musical Chords
edsrzf
🥉
96
139ms
8 hours ago
Game of Life
te-chnical
168
16ms
8 hours ago
Quine
syyynth
32
9ms
8 hours ago
Emirp Numbers (Long)
JayXon
💎
98
123ms
9 hours ago
Emirp Numbers (Long)
JayXon
💎
188
1,710ms
9 hours ago
ln 2
DialFrost
💎
159
1,835ms
9 hours ago
Ordinal Numbers
DialFrost
212
1,647ms
9 hours ago
Pangram Grep
DialFrost
🥉
186
1,719ms
9 hours ago
Pangram Grep
jkiger93
83
11ms
9 hours ago
Leyland Numbers
DialFrost
💎
228
1,691ms
10 hours ago
Arithmetic Numbers
DialFrost
🥉
167
1,887ms
10 hours ago
Lucky Numbers
DialFrost
🥉
182
1,754ms
10 hours ago
Pernicious Numbers (Long)
DialFrost
134
1,648ms
10 hours ago
Odious Numbers (Long)
DialFrost
🥉
122
1,617ms
10 hours ago
Odious Numbers
DialFrost
🥉
121
1,704ms
10 hours ago
Evil Numbers
DialFrost
🥉
121
1,674ms
10 hours ago
Evil Numbers (Long)
DialFrost
🥉
123
1,648ms
10 hours ago
Collatz
DialFrost
🥈
160
1,672ms
10 hours ago
Catalan’s Constant
DialFrost
💎
202
1,739ms
10 hours ago
Partition Numbers
DialFrost
165
1,678ms
10 hours ago
√2
DialFrost
🥉
158
1,624ms
10 hours ago
φ
DialFrost
🥉
159
1,708ms
10 hours ago
𝑒
DialFrost
🥇
157
1,672ms
10 hours ago
Farey Sequence
DialFrost
🥉
170
1,680ms
10 hours ago
Divisors
DialFrost
145
1,653ms
10 hours ago
Niven Numbers (Long)
DialFrost
🥇
137
1,737ms
10 hours ago
Niven Numbers
DialFrost
🥇
121
1,719ms
10 hours ago
τ
DialFrost
💎
170
1,758ms
10 hours ago
π
DialFrost
💎
170
1,726ms
10 hours ago
Prime Numbers (Long)
DialFrost
🥉
138
1,754ms
10 hours ago
Prime Numbers
DialFrost
132
1,676ms
10 hours ago
Pascal’s Triangle
DialFrost
🥉
162
1,605ms
10 hours ago
Abundant Numbers (Long)
DialFrost
🥉
149
1,669ms
10 hours ago
Abundant Numbers
DialFrost
🥉
148
1,708ms
10 hours ago
Emirp Numbers (Long)
DialFrost
🥈
190
1,671ms
10 hours ago
Catalan Numbers
DialFrost
🥇
129
1,605ms
10 hours ago
Pernicious Numbers
DialFrost
🥇
115
1,660ms
10 hours ago
Leap Years
Sciman101
67
2ms
10 hours ago
Niven Numbers
Sciman101
84
2ms
10 hours ago
Tutorial
FoxInTheClouds
67
11ms
10 hours ago
Emojify
Sciman101
420
2ms
11 hours ago
Niven Numbers
Matter1024
78
64ms
11 hours ago
CSS Colors (Inverse)
Sciman101
2,924
2ms
11 hours ago
Tic-tac-toe
Sciman101
231
5ms
11 hours ago
Quine
primo-ppcg
🥇
25
34ms
11 hours ago
99 Bottles of Beer
primo-ppcg
201
36ms
11 hours ago
Pascal’s Triangle
primo-ppcg
🥇
71
2ms
11 hours ago
Tutorial
Sciman101
129
3ms
12 hours ago
Evil Numbers (Long)
Roachbones
69
11ms
12 hours ago
Day of Week
Roachbones
100
11ms
13 hours ago
Prime Numbers
FoxInTheClouds
64
10ms
13 hours ago