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
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
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 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
QR Encoder
Quadratic Formula
Scrambled Alphabetization
Semiprime Numbers
Snake
Sphenic Numbers
Star Wars GPT
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
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
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 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
QR Encoder
Quadratic Formula
Scrambled Alphabetization
Semiprime Numbers
Snake
Sphenic Numbers
Star Wars GPT
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Farey Sequence
pardouin
94
10 hours ago
Tic-tac-toe
KatieLG
15,372
24 hours ago
Arabic to Roman
sean-niemann
🥇
73
30 hours ago
Pernicious Numbers (Long)
pardouin
68
33 hours ago
Pernicious Numbers
pardouin
53
38 hours ago
SI Units
edsrzf
💎
493
2 days ago
Prime Numbers
Shanethegamer
🥇
47
4 days ago
Quine
sean-niemann
🥇
42
4 days ago
Fibonacci
plcc0
68
5 days ago
Day of Week
sean-niemann
🥇
70
6 days ago
Niven Numbers
sean-niemann
🥇
54
6 days ago
PalindromemordnilaP
sean-niemann
🥈
92
6 days ago
Happy Numbers
sean-niemann
🥇
64
6 days ago
Emirp Numbers
sean-niemann
🥇
75
6 days ago
Prime Numbers
sean-niemann
🥇
47
6 days ago
Odious Numbers
sean-niemann
🥇
48
6 days ago
Odious Numbers (Long)
sean-niemann
🥇
49
6 days ago
Evil Numbers
sean-niemann
🥇
48
6 days ago
Evil Numbers (Long)
sean-niemann
🥇
49
6 days ago
Divisors
Shanethegamer
🥇
63
7 days ago
Tutorial
CaedenHarper
65
7 days ago
Tutorial
HumanoidCPU
65
8 days ago
N Queens
edsrzf
💎
146
8 days ago
Mandelbrot
Shanethegamer
10,012
8 days ago
Hilbert Curve
Shanethegamer
5,126
8 days ago
Tutorial
DialFrost
65
8 days ago
PalindromemordnilaP
error256
💎
87
9 days ago
Reversi
error256
🥈
142
10 days ago
Hilbert Curve
dokutan
667
12 days ago
Leyland Numbers
edsrzf
🥉
97
13 days ago
Hilbert Curve
HumanoidCPU
5,126
13 days ago
Fizz Buzz
emgordon154
91
13 days ago
Gray Code Encoder
error256
88
13 days ago
Foo Fizz Buzz Bar
edsrzf
122
13 days ago
Tongue-twisters
emgordon154
💎
310
14 days ago
Hexdump
emgordon154
🥉
202
19 days ago
Partition Numbers
emgordon154
113
19 days ago
Set
edsrzf
🥉
145
23 days ago
Tutorial
retrohun
151
24 days ago
Partition Numbers
dokutan
117
26 days ago
Hexdump
edsrzf
💎
172
26 days ago
Seven Segment
edsrzf
🥈
159
26 days ago
Morse Encoder
edsrzf
226
29 Mar 2025
Morse Decoder
edsrzf
💎
168
29 Mar 2025
Set
zacjl
🥇
137
28 Mar 2025
Set
Shanethegamer
157
27 Mar 2025
Set
emgordon154
177
27 Mar 2025
Set
error256
🥇
137
26 Mar 2025
λ
ehulinsky
1,014
26 Mar 2025
brainfuck
edsrzf
🥈
225
23 Mar 2025
brainfuck
zacjl
💎
202
23 Mar 2025
Quine
zacjl
🥇
42
23 Mar 2025
Factorial Factorisation
edsrzf
🥈
154
22 Mar 2025
Ascending Primes
edsrzf
118
22 Mar 2025
Ascending Primes
emgordon154
121
22 Mar 2025
Ascending Primes
zacjl
🥇
99
22 Mar 2025
ASCII Table
zacjl
🥇
123
22 Mar 2025
𝑒
edsrzf
🥇
60
22 Mar 2025
Game of Life
edsrzf
🥉
131
21 Mar 2025
Partition Numbers
pardouin
🥉
107
20 Mar 2025
Catalan Numbers
pardouin
72
20 Mar 2025
Tutorial
plcc0
71
20 Mar 2025
Pernicious Numbers
emgordon154
55
20 Mar 2025
Arrows
edsrzf
188
15 Mar 2025
Star Wars Opening Crawl
edsrzf
💎
360
14 Mar 2025
π
Mabeloid
1,011
14 Mar 2025
Kolakoski Sequence
dokutan
294
12 Mar 2025
Fractions
GolfingSuccess
83
11 Mar 2025
12 Days of Christmas
GolfingSuccess
370
11 Mar 2025
Partition Numbers
Shanethegamer
147
8 Mar 2025
Christmas Trees
edsrzf
🥈
108
8 Mar 2025
ASCII Table
edsrzf
🥉
129
8 Mar 2025
Partition Numbers
KatieLG
655
6 Mar 2025
Ordinal Numbers
GolfingSuccess
113
6 Mar 2025
Billiards
emgordon154
💎
172
6 Mar 2025