Recent Solutions
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
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
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
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
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Topological Sort
Trinomial Triangle
Turtle
Tutorial
All Languages
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
Fennel
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
Fennel
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
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
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
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
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Topological Sort
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Mandelbrot
albanian-laundromat
176
27 hours ago
Tongue-twisters
Mukundan314
🥈
290
38 hours ago
Zodiac Signs
sean-niemann
🥈
141
2 days ago
Mandelbrot
pardouin
🥈
115
2 days ago
Zodiac Signs
emgordon154
156
3 days ago
ROT13
dokutan
1,496
8 days ago
Mandelbrot
MeWhenI
128
8 days ago
Mandelbrot
lukegustafson
💎
109
9 days ago
CSS Colors (Inverse)
Shanethegamer
2,869
10 days ago
Tutorial
nilan425
158
10 days ago
Mandelbrot
sean-niemann
🥉
118
11 days ago
Mandelbrot
dokutan
370
11 days ago
Mandelbrot
HumanoidCPU
10,017
12 days ago
Emirp Numbers
lukegustafson
💎
59
14 days ago
Hexagonal Spiral
HumanoidCPU
1,348
15 days ago
Set
sean-niemann
124
16 days ago
Card Number Validation
dokutan
126
19 days ago
Hilbert Curve
rucin93
440
20 days ago
Hilbert Curve
dokutan
806
20 days ago
Emirp Numbers (Long)
dokutan
113
20 days ago
Musical Chords
sean-niemann
🥉
135
24 days ago
Kolakoski Sequence
JayXon
💎
51
25 days ago
Kolakoski Sequence
lukegustafson
🥈
53
25 days ago
Kolakoski Sequence
sean-niemann
61
25 days ago
Reversi
dokutan
292
26 days ago
Levenshtein Distance
dokutan
440
26 days ago
Scrambled Sort
MeWhenI
134
27 days ago
Reverse Polish Notation
rucin93
🥉
94
13 Jun 2025
Reverse Polish Notation
sean-niemann
🥈
92
12 Jun 2025
Pangram Grep
sean-niemann
🥉
67
9 Jun 2025
Scrambled Sort
DialFrost
113
9 Jun 2025
Scrambled Sort
JayXon
💎
94
8 Jun 2025
Roman to Arabic
dokutan
128
6 Jun 2025
Fractions
dokutan
112
6 Jun 2025
Emojify
dokutan
344
6 Jun 2025
ISBN
dokutan
105
6 Jun 2025
Arabic to Roman
dokutan
222
6 Jun 2025
CSS Colors
dokutan
1,135
6 Jun 2025
Billiards
dokutan
366
5 Jun 2025
Niven Numbers
qwertyuiop3
55
4 Jun 2025
Quine
fuzzylojik-golf
37
4 Jun 2025
π
JOrE-Softwares
1,016
3 Jun 2025
Polygon Triangulations
Shanethegamer
4,325
3 Jun 2025
Scrambled Sort
rucin93
115
3 Jun 2025
Scrambled Sort
ovs-code
121
1 Jun 2025
Scrambled Sort
lukegustafson
🥈
96
1 Jun 2025
Foo Fizz Buzz Bar
lukegustafson
🥈
80
29 May 2025
λ
heanyang1
1,016
29 May 2025
Fractions
Shanethegamer
84
29 May 2025
SI Units
edsrzf
💎
526
26 May 2025
SI Units
sean-niemann
🥈
740
25 May 2025
Kolakoski Sequence
Shanethegamer
1,022
25 May 2025
24 Game
sean-niemann
🥈
169
21 May 2025
Semiprime Numbers
lukegustafson
58
21 May 2025
Maze
emgordon154
132
20 May 2025
Abundant Numbers (Long)
lukegustafson
🥇
53
20 May 2025
Fizz Buzz
Shanethegamer
67
20 May 2025
Recamán
Shanethegamer
76
19 May 2025
Gray Code Decoder
sean-niemann
62
19 May 2025
Seven Segment
sean-niemann
🥈
115
19 May 2025
Roman to Arabic
sean-niemann
🥈
91
19 May 2025
Forsyth–Edwards Notation
sean-niemann
🥇
117
19 May 2025
Emirp Numbers
sean-niemann
66
19 May 2025
DFA Simulator
sean-niemann
167
19 May 2025
Billiards
sean-niemann
💎
149
19 May 2025
Scrambled Sort
sean-niemann
114
19 May 2025
Scrambled Sort
Shanethegamer
🥉
112
19 May 2025
Sphenic Numbers
DialFrost
61
18 May 2025
24 Game
rucin93
💎
165
17 May 2025
Sphenic Numbers
Shanethegamer
87
16 May 2025
Semiprime Numbers
Shanethegamer
72
16 May 2025
Time Distance
sean-niemann
🥈
221
16 May 2025
Ten-pin Bowling
sean-niemann
🥈
130
16 May 2025
Poker
sean-niemann
🥉
370
16 May 2025
Mahjong
sean-niemann
🥈
286
16 May 2025