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
Continued Fractions
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
Continued Fractions
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
Chars
Time
Submitted
Smooth Numbers
GolfingSuccess
117
109ms
3 hours ago
ISBN
HumanoidCPU
169
2ms
3 hours ago
Cubes
edsrzf
236
2ms
4 hours ago
Leap Years
HumanoidCPU
60
3ms
8 hours ago
Prime Numbers (Long)
HumanoidCPU
73
438ms
9 hours ago
Hexdump
koipondx86
578
4ms
12 hours ago
Divisors
HumanoidCPU
74
2ms
32 hours ago
Fibonacci
solisolu
44
2ms
34 hours ago
Farey Sequence
GolfingSuccess
74
3ms
37 hours ago
Odious Numbers (Long)
HumanoidCPU
84
2ms
2 days ago
Evil Numbers (Long)
HumanoidCPU
85
2ms
2 days ago
Continued Fractions
GolfingSuccess
120
2ms
2 days ago
Continued Fractions
bitsandbeyond
171
2ms
2 days ago
Minesweeper
StronkCheese2
362
9ms
3 days ago
Diamonds
StronkCheese2
186
1ms
3 days ago
Card Number Validation
StronkCheese2
161
2ms
3 days ago
12 Days of Christmas
StronkCheese2
569
2ms
3 days ago
Seven Segment
edsrzf
136
2ms
4 days ago
Topological Sort
GrayJoKing
💎
120
16ms
4 days ago
Billiards
StronkCheese2
488
3ms
5 days ago
Fractions
kTheLemon
160
411ms
5 days ago
Fractions
Blendi-Goose
138
3ms
5 days ago
π
Blendi-Goose
359
142ms
5 days ago
Christmas Trees
kTheLemon
97
2ms
5 days ago
Christmas Trees
Blendi-Goose
97
2ms
5 days ago
Tower of Hanoi
SwordF-Official
92
2ms
6 days ago
Farey Sequence
HumanoidCPU
96
2ms
6 days ago
Fibonacci
gigaprofisi
46
1ms
6 days ago
Arithmetic Numbers
Xampersand
100
252ms
6 days ago
Fibonacci
Zach1031
48
2ms
7 days ago
Pascal’s Triangle
StronkCheese2
160
2ms
9 days ago
Kolakoski Sequence
StronkCheese2
182
2ms
9 days ago
Tic-tac-toe
StronkCheese2
307
5ms
9 days ago
Reverse Polish Notation
edsrzf
🥈
112
25ms
9 days ago
Tutorial
StronkCheese2
79
2ms
9 days ago
Kolakoski Sequence
HumanoidCPU
165
2ms
9 days ago
Abundant Numbers (Long)
GolfingSuccess
🥇
70
9ms
9 days ago
Arithmetic Numbers
GolfingSuccess
🥉
85
1,347ms
9 days ago
Divisors
GolfingSuccess
🥇
68
2ms
9 days ago
Niven Numbers
GolfingSuccess
🥇
46
2ms
9 days ago
Gray Code Encoder
GolfingSuccess
86
8ms
9 days ago
Morse Encoder
StronkCheese2
644
2ms
10 days ago
Quine
StronkCheese2
71
2ms
10 days ago
ISBN
StronkCheese2
152
2ms
10 days ago
Recamán
StronkCheese2
135
2ms
10 days ago
Prime Numbers (Long)
StronkCheese2
91
31ms
10 days ago
Prime Numbers
StronkCheese2
89
2ms
10 days ago
Leap Years
StronkCheese2
60
2ms
10 days ago
Foo Fizz Buzz Bar
StronkCheese2
163
2ms
10 days ago
Fizz Buzz
StronkCheese2
106
2ms
10 days ago
Fibonacci
StronkCheese2
🥇
43
2ms
10 days ago
Divisors
StronkCheese2
76
2ms
10 days ago
Collatz
StronkCheese2
95
5ms
10 days ago
Arithmetic Numbers
StronkCheese2
100
255ms
10 days ago
Abundant Numbers (Long)
StronkCheese2
90
4ms
10 days ago
Abundant Numbers
StronkCheese2
89
1ms
10 days ago
Sierpiński Triangle
HumanoidCPU
136
2ms
10 days ago
Pangram Grep
RockOfStone
101
2ms
12 days ago
Christmas Trees
RockOfStone
109
2ms
12 days ago
Hilbert Curve
JOrE20
🥉
1,448
2ms
12 days ago
Odd Polyomino Tiling
HumanoidCPU
21,439
1ms
13 days ago
Highly Composite Numbers
HumanoidCPU
400
2ms
13 days ago
Hexagonal Spiral
HumanoidCPU
1,143
2ms
13 days ago
Trinomial Triangle
MeWhenI
2,075
2ms
14 days ago
Ordinal Numbers
edsrzf
🥇
79
3ms
14 days ago
Fizz Buzz
Blockyheadman
105
2ms
14 days ago
Tower of Hanoi
HumanoidCPU
3,585
2ms
15 days ago
𝑒
JOrE20
1,009
1ms
15 days ago
Happy Numbers (Long)
dokutan
102
2ms
15 days ago
Arrows
dokutan
121
2ms
16 days ago
γ
gigaprofisi
1,011
2ms
17 days ago
Look and Say
RockOfStone
🥉
105
2ms
17 days ago
Forsyth–Edwards Notation
RockOfStone
162
2ms
17 days ago
λ
snoozingnewt
384
2ms
17 days ago
Quine
Babafaba
🥇
45
1ms
17 days ago