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
Topological Sort
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
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
Knight
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
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
Knight
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
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
Topological Sort
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
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Chars
Submitted
Fizz Buzz
CaedenHarper
84
2 hours ago
Tutorial
Vexxter9
372
8 hours ago
ROT13
michelebastione
138
13 hours ago
Zodiac Signs
tomh1012
1,035
15 hours ago
Divisors
AdrienHache
75
17 hours ago
Musical Chords
Yax42
149
39 hours ago
Musical Chords
AdrienHache
173
41 hours ago
Fizz Buzz
acollett89
87
45 hours ago
Billiards
AdrienHache
🥉
194
2 days ago
Odious Numbers (Long)
fuzzylojik-golf
🥇
56
2 days ago
Evil Numbers (Long)
fuzzylojik-golf
🥇
56
2 days ago
Odious Numbers
fuzzylojik-golf
55
2 days ago
Evil Numbers
fuzzylojik-golf
55
2 days ago
Topological Sort
tomtheisen
🥉
144
2 days ago
Roman to Arabic
DialFrost
99
2 days ago
Prime Numbers (Long)
AdrienHache
66
2 days ago
Rule 110
AdrienHache
97
2 days ago
Roman to Arabic
namelessiw
90
2 days ago
Smith Numbers
DialFrost
141
3 days ago
Roman to Arabic
AdrienHache
🥇
84
3 days ago
Card Number Validation
michelebastione
124
3 days ago
Roman to Arabic
wiz0u
101
3 days ago
Topological Sort
Yax42
🥈
143
3 days ago
Poker
AdrienHache
393
3 days ago
Tic-tac-toe
vroup
278
3 days ago
Card Number Validation
AdrienHache
81
3 days ago
Pangram Grep
AdrienHache
85
3 days ago
Ordinal Numbers
AdrienHache
🥇
87
3 days ago
99 Bottles of Beer
blaztoma
311
4 days ago
Sierpiński Triangle
AdrienHache
80
4 days ago
Number Spiral
AdrienHache
142
4 days ago
Roman to Arabic
CaedenHarper
131
4 days ago
Abundant Numbers (Long)
moamin21
103
4 days ago
Fibonacci
blaztoma
56
4 days ago
Partition Numbers
Yax42
119
4 days ago
Fizz Buzz
h3ra993huskp
84
4 days ago
Emirp Numbers (Long)
DialFrost
113
5 days ago
Partition Numbers
CaedenHarper
665
5 days ago
Mandelbrot
CaedenHarper
3,380
5 days ago
Inventory Sequence
Emutis
91
5 days ago
Inventory Sequence
blaztoma
90
5 days ago
Van Eck Sequence
Yax42
88
5 days ago
Van Eck Sequence
namelessiw
85
5 days ago
Fibonacci
Emutis
57
5 days ago
Tutorial
matejmatik123
128
6 days ago
Emirp Numbers (Long)
AdrienHache
130
6 days ago
Scrambled Sort
tomh1012
195
6 days ago
Kaprekar Numbers
tomh1012
215
6 days ago
Billiards
tomh1012
371
6 days ago
Evil Numbers
GolfingSuccess
115
6 days ago
Odious Numbers
GolfingSuccess
119
6 days ago
ISBN
michelebastione
113
6 days ago
Prime Numbers (Long)
michelebastione
84
6 days ago
Prime Numbers
michelebastione
83
6 days ago
Arabic to Roman
Yax42
171
6 days ago
Vampire Numbers
Yax42
226
6 days ago
Happy Numbers (Long)
Yax42
114
6 days ago
Emirp Numbers (Long)
Yax42
116
7 days ago
Emirp Numbers (Long)
namelessiw
116
7 days ago
Catalan Numbers
AdrienHache
🥇
79
7 days ago
Sudoku
namelessiw
412
7 days ago
Inventory Sequence
namelessiw
84
7 days ago
Fizz Buzz
AdrienHache
🥇
74
7 days ago
Foo Fizz Buzz Bar
AdrienHache
🥇
96
7 days ago
Prime Numbers (Long)
fuzzylojik-golf
69
7 days ago
Star Wars GPT
tomh1012
272
7 days ago
Collatz
michelebastione
91
7 days ago
λ
AdrienHache
🥈
220
8 days ago
Kolakoski Sequence
michelebastione
115
8 days ago
Evil Numbers
michelebastione
89
8 days ago
Odious Numbers (Long)
michelebastione
89
8 days ago
Odious Numbers
michelebastione
88
8 days ago
Niven Numbers
michelebastione
70
8 days ago
Niven Numbers (Long)
michelebastione
70
8 days ago
Levenshtein Distance
AdrienHache
198
8 days ago