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
Fractions
zhaohm14
97
17ms
4 mins ago
Calendar
stefangimmillaro
228
402ms
8 mins ago
Emojify
TeodorDyakov
210
463ms
19 mins ago
Rule 110
sean-niemann
🥉
82
129ms
28 mins ago
Rijndael S-box
amazingalek
519
440ms
50 mins ago
Calendar
JDiLenarda
💎
343
1,385ms
73 mins ago
Calendar
stefangimmillaro
💎
322
141ms
98 mins ago
Odious Numbers (Long)
jtaxen
48
18ms
111 mins ago
Odious Numbers
jtaxen
46
16ms
112 mins ago
Reverse Polish Notation
blaztoma
5
45ms
2 hours ago
Calendar
antimon2
🦄
178
343ms
2 hours ago
Reverse Polish Notation
blaztoma
119
21ms
3 hours ago
Calendar
sean-niemann
🥉
260
391ms
3 hours ago
Calendar
sean-niemann
🥈
217
3ms
3 hours ago
Zodiac Signs
blaztoma
🥈
193
103ms
5 hours ago
Zodiac Signs
blaztoma
126
36ms
5 hours ago
√2
convlr
81
13ms
5 hours ago
Calendar
sean-niemann
🦄
163
3ms
5 hours ago
Repeating Decimals
canissimia
💎
104
8ms
6 hours ago
Niven Numbers
kg583
88
31ms
7 hours ago
Pernicious Numbers
kg583
91
31ms
7 hours ago
Van Eck Sequence
kg583
87
37ms
7 hours ago
Transpose Sentence
kg583
177
216ms
7 hours ago
Pangram Grep
kg583
134
83ms
7 hours ago
PalindromemordnilaP
kg583
145
43ms
7 hours ago
Jacobi Symbol
kg583
301
44ms
7 hours ago
Tutorial
kg583
82
31ms
7 hours ago
Arabic to Roman
ethanlally
207
480ms
8 hours ago
Quine
IISResetMe
163
99ms
8 hours ago
Roman to Arabic
te-chnical
139
24ms
9 hours ago
Rule 110
sean-niemann
76
11ms
9 hours ago
Calendar
sean-niemann
🥉
243
392ms
9 hours ago
Seven Segment
anter69
93
34ms
11 hours ago
Calendar
sean-niemann
147
37ms
11 hours ago
Calendar
emgordon154
🦄
518
1,742ms
11 hours ago
Calendar
DialFrost
🥉
98
418ms
11 hours ago
Calendar
helbling
214
11ms
11 hours ago
Day of Week
emgordon154
🥈
336
1,671ms
11 hours ago
Prime Numbers
JOrE20
39
9ms
12 hours ago
Kolakoski Sequence
FortuiteMan
🥉
144
13ms
12 hours ago
Reverse Polish Notation
JOrE20
111
11ms
12 hours ago
Seven Segment
anter69
113
10ms
12 hours ago
Vampire Numbers
TheZwierzLF
153
4,159ms
12 hours ago
Fibonacci
Daniel-Ellison
36
642ms
12 hours ago
Lucky Numbers
KatieLG
58
374ms
12 hours ago
Poker
JOrE20
496
12ms
12 hours ago
Lucky Numbers
KatieLG
59
11ms
12 hours ago
Factorial Factorisation
emgordon154
🥈
231
1,768ms
12 hours ago
Emojify
TheZwierzLF
235
36ms
12 hours ago
Tower of Hanoi
andrewjc2000
59
11ms
12 hours ago
Tower of Hanoi
nwellnhof
77
356ms
12 hours ago
Zodiac Signs
blaztoma
154
12ms
12 hours ago
Continued Fractions
JOrE20
131
11ms
12 hours ago
Card Number Validation
TheZwierzLF
106
35ms
12 hours ago
Calendar
DialFrost
215
10ms
12 hours ago
Arithmetic Numbers
TheZwierzLF
66
1,574ms
13 hours ago
Arabic to Roman
TheZwierzLF
136
76ms
13 hours ago
Calendar
DialFrost
🥇
99
16ms
13 hours ago
Inventory Sequence
emgordon154
🥈
166
1,654ms
13 hours ago
Pernicious Numbers
fuzzylojik-golf
43
2,074ms
13 hours ago
Cubes
JOrE20
568
10ms
13 hours ago
Happy Numbers (Long)
Yax42
97
418ms
13 hours ago
Tower of Hanoi
nwellnhof
🥇
45
3ms
13 hours ago
Divisors
JOrE20
99
26ms
13 hours ago
Divisors
JOrE20
59
10ms
13 hours ago
Tower of Hanoi
JOrE20
454
45ms
13 hours ago
Tower of Hanoi
JOrE20
74
426ms
13 hours ago
ASCII Table
JOrE20
164
10ms
13 hours ago
Smooth Numbers
GolfingSuccess
31
357ms
13 hours ago
Fizz Buzz
amazingalek
84
379ms
13 hours ago
Foo Fizz Buzz Bar
amazingalek
106
387ms
13 hours ago
Billiards
FortuiteMan
220
12ms
13 hours ago
Spelling Numbers
JOrE20
50
11ms
13 hours ago
Forsyth–Edwards Notation
emgordon154
🥇
56
41ms
14 hours ago
Quine
prestosilver
🥉
259
5ms
14 hours ago
Tutorial
prestosilver
271
5ms
14 hours ago
Day of Week
jkelly467
86
380ms
15 hours ago
Ascending Primes
amazingalek
155
4,928ms
15 hours ago
Divisors
mwarvik
97
435ms
15 hours ago
Tutorial
DavidAJL
546
11ms
15 hours ago