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
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
Mandelbrot
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
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
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
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
Mandelbrot
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
Hexagonal Spiral
HumanoidCPU
1,341
21 hours ago
Mandelbrot
MeWhenI
729
7 days ago
Scrambled Sort
albanian-laundromat
🦄
482
9 days ago
Spelling Numbers
dokutan
4,566
12 days ago
Lucky Tickets
dokutan
1,402
12 days ago
Levenshtein Distance
dokutan
502
12 days ago
Day of Week
dokutan
143
12 days ago
CSS Colors
dokutan
1,235
12 days ago
Niven Numbers
qwertyuiop3
51
12 days ago
Emojify
dokutan
196
21 days ago
Quine
fuzzylojik-golf
41
23 days ago
π
JOrE-Softwares
1,009
24 days ago
Polygon Triangulations
Shanethegamer
4,318
24 days ago
Pernicious Numbers
rucin93
66
27 days ago
λ
heanyang1
1,007
29 May 2025
Foo Fizz Buzz Bar
sean-niemann
🥉
91
29 May 2025
Fizz Buzz
sean-niemann
🥇
65
29 May 2025
SI Units
edsrzf
💎
659
27 May 2025
Tutorial
edsrzf
47
26 May 2025
Fizz Buzz
yuandi42
110
21 May 2025
Abundant Numbers (Long)
yuandi42
108
21 May 2025
Collatz
yuandi42
110
21 May 2025
Tutorial
yuandi42
76
21 May 2025
Fibonacci
plcc0
🥇
51
11 May 2025
Star Wars GPT
ovs-code
🦄
183
9 May 2025
Rule 110
sean-niemann
🥉
96
9 May 2025
Gray Code Encoder
GolfingSuccess
46
8 May 2025
Levenshtein Distance
keelimeguy
533
8 May 2025
Lucky Numbers
DialFrost
142
3 May 2025
Reversi
error256
🥉
106
1 May 2025
United States
dokutan
329
29 Apr 2025
Seven Segment
dokutan
190
29 Apr 2025
ROT13
dokutan
💎
109
29 Apr 2025
Roman to Arabic
dokutan
99
29 Apr 2025
Recamán
dokutan
133
29 Apr 2025
Prime Numbers (Long)
dokutan
90
29 Apr 2025
Partition Numbers
dokutan
🥈
133
29 Apr 2025
Fractions
dokutan
119
29 Apr 2025
Collatz
dokutan
99
29 Apr 2025
Billiards
dokutan
🥈
278
29 Apr 2025
Arabic to Roman
dokutan
116
29 Apr 2025
Morse Encoder
dokutan
🥈
422
29 Apr 2025
Morse Decoder
dokutan
🥉
370
29 Apr 2025
Forsyth–Edwards Notation
dokutan
203
29 Apr 2025
Set
error256
🥈
182
27 Apr 2025
Trinomial Triangle
KatieLG
2,073
27 Apr 2025
Sphenic Numbers
KatieLG
8,866
27 Apr 2025
Semiprime Numbers
KatieLG
12,795
27 Apr 2025
Odd Polyomino Tiling
KatieLG
21,437
27 Apr 2025
Minesweeper
KatieLG
22,559
27 Apr 2025
Mandelbrot
KatieLG
3,368
27 Apr 2025
Hilbert Curve
KatieLG
2,054
27 Apr 2025
Highly Composite Numbers
KatieLG
398
27 Apr 2025
Hexagonal Spiral
KatieLG
1,341
27 Apr 2025
Floyd-Steinberg Dithering
KatieLG
54,531
27 Apr 2025
Flags
KatieLG
4,105
27 Apr 2025
Tic-tac-toe
KatieLG
15,419
25 Apr 2025
Tutorial
emgordon154
66
23 Apr 2025
Tutorial
CaedenHarper
47
18 Apr 2025
Tutorial
HumanoidCPU
47
18 Apr 2025
Mandelbrot
Shanethegamer
3,368
18 Apr 2025
Hilbert Curve
Shanethegamer
2,054
18 Apr 2025
Tutorial
Shanethegamer
47
17 Apr 2025
Tutorial
DialFrost
47
17 Apr 2025
Arabic to Roman
DialFrost
💎
101
16 Apr 2025
Odious Numbers
rucin93
49
14 Apr 2025
Odious Numbers (Long)
sean-niemann
🥇
50
13 Apr 2025
Hilbert Curve
HumanoidCPU
2,054
13 Apr 2025
Set
ovs-code
💎
159
10 Apr 2025
Inventory Sequence
ehulinsky
127
7 Apr 2025
Fibonacci
albanian-laundromat
94
5 Apr 2025
PalindromemordnilaP
ehulinsky
🥉
122
3 Apr 2025
Tic-tac-toe
ehulinsky
241
3 Apr 2025
N Queens
ehulinsky
1,252
2 Apr 2025
Polyominoes
ehulinsky
3,570
2 Apr 2025