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
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
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
Calendar
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
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
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
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
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
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
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
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
Calendar
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Lucky Tickets
emgordon154
🥇
26
5ms
7 hours ago
Set
ovs-code
💎
33
336ms
8 hours ago
Billiards
ovs-code
🥇
45
41ms
8 hours ago
Zodiac Signs
ovs-code
🥇
66
4ms
17 hours ago
Musical Chords
HPWiz
🥇
50
4ms
28 hours ago
Zodiac Signs
2bular
🥇
66
4ms
31 hours ago
Collatz
HPWiz
🥉
33
9ms
2 days ago
Farey Sequence
ovs-code
🥇
30
4ms
5 days ago
Prime Numbers (Long)
FortuiteMan
🥇
13
3ms
5 days ago
Prime Numbers
FortuiteMan
🥇
11
3ms
5 days ago
Forsyth–Edwards Notation
2bular
🥉
75
3ms
6 days ago
Tutorial
luuumine
31
6ms
7 days ago
brainfuck
ovs-code
💎
79
22ms
8 days ago
ISBN
AlephSquirrel
41
2ms
9 days ago
Roman to Arabic
AlephSquirrel
55
4ms
9 days ago
Emojify
AlephSquirrel
152
4ms
9 days ago
Trinomial Triangle
MeWhenI
30
2ms
10 days ago
Look and Say
AlephSquirrel
33
3ms
10 days ago
Divisors
AlephSquirrel
29
3ms
10 days ago
Pangram Grep
AlephSquirrel
30
3ms
10 days ago
Kolakoski Sequence
AlephSquirrel
19
2ms
10 days ago
Quine
AlephSquirrel
19
2ms
10 days ago
Scrambled Sort
AlephSquirrel
33
3ms
10 days ago
𝑒
JOrE20
1,247
3ms
11 days ago
Intersection
AlephSquirrel
32
3ms
12 days ago
Tutorial
AlephSquirrel
30
5ms
12 days ago
Foo Fizz Buzz Bar
AlephSquirrel
68
2ms
12 days ago
Fizz Buzz
AlephSquirrel
48
2ms
12 days ago
Sudoku (Fill-in)
Natanaelel
187
11ms
12 days ago
Sudoku
Natanaelel
446
12ms
12 days ago
Tutorial
edsrzf
28
5ms
12 days ago
Minesweeper
zacjl
🥉
49
4ms
13 days ago
Leap Years
AlephSquirrel
🥇
23
2ms
13 days ago
Pernicious Numbers (Long)
AlephSquirrel
27
3ms
13 days ago
Pernicious Numbers
AlephSquirrel
19
2ms
13 days ago
Trinomial Triangle
AlephSquirrel
40
2ms
13 days ago
Pascal’s Triangle
AlephSquirrel
27
3ms
13 days ago
Abundant Numbers
AlephSquirrel
28
3ms
13 days ago
Abundant Numbers (Long)
AlephSquirrel
29
12ms
13 days ago
Niven Numbers (Long)
AlephSquirrel
28
6ms
13 days ago
Niven Numbers
AlephSquirrel
26
2ms
13 days ago
Tower of Hanoi
GolfingSuccess
49
36ms
14 days ago
Happy Numbers
AlephSquirrel
27
2ms
14 days ago
Happy Numbers (Long)
AlephSquirrel
28
3ms
14 days ago
Evil Numbers (Long)
AlephSquirrel
17
2ms
14 days ago
Evil Numbers
AlephSquirrel
15
2ms
14 days ago
Odious Numbers (Long)
AlephSquirrel
15
2ms
14 days ago
Odious Numbers
AlephSquirrel
14
2ms
14 days ago
Prime Numbers (Long)
AlephSquirrel
🥇
13
2ms
15 days ago
Prime Numbers
AlephSquirrel
🥇
11
2ms
15 days ago
Collatz
AlephSquirrel
42
14ms
15 days ago
Fibonacci
AlephSquirrel
14
2ms
15 days ago
Ascending Primes
2bular
🥇
23
416ms
15 days ago
Emirp Numbers
2bular
🥇
25
2ms
15 days ago
Trinomial Triangle
emgordon154
🥇
21
3ms
15 days ago
Repeating Decimals
zacjl
🥈
72
3ms
15 days ago
Emirp Numbers
zacjl
🥇
25
2ms
15 days ago
Ascending Primes
zacjl
🥇
23
3,714ms
15 days ago
Smith Numbers
zacjl
🥈
43
1,314ms
15 days ago
Trinomial Triangle
zacjl
🥇
21
3ms
15 days ago
Ascending Primes
ovs-code
🥇
23
399ms
15 days ago
Floyd-Steinberg Dithering
ovs-code
90
10ms
15 days ago
Trinomial Triangle
ovs-code
🥇
21
2ms
15 days ago
Smith Numbers
ovs-code
💎
42
3,073ms
15 days ago
Repeating Decimals
ovs-code
💎
71
3ms
15 days ago
Recamán
ovs-code
🥈
30
5ms
15 days ago
p-adic Expansion
ovs-code
99
25ms
15 days ago
Time Distance
ovs-code
💎
147
3ms
15 days ago
Leyland Numbers
zacjl
42
5ms
15 days ago
Fractions
ovs-code
🥇
32
3ms
15 days ago
Tower of Hanoi
ovs-code
33
3ms
16 days ago
Tower of Hanoi
2bular
35
3ms
17 days ago
Tutorial
Openstreetmapler
73
5ms
18 days ago
Maze
HPWiz
🥈
47
24ms
18 days ago
Minesweeper
2bular
🥈
48
4ms
22 days ago