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
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
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
Trinomial Triangle
MeWhenI
2,072
1,825ms
14 hours ago
Fizz Buzz
Blockyheadman
116
1,940ms
28 hours ago
N Queens
MeWhenI
1,251
1,770ms
43 hours ago
Tower of Hanoi
HumanoidCPU
3,582
2,020ms
46 hours ago
𝑒
JOrE20
1,013
2,163ms
46 hours ago
π
jkelly467
199
2,276ms
2 days ago
Farey Sequence
Chinay-Domitrix
130
2,048ms
3 days ago
Time Distance
Chinay-Domitrix
388
2,155ms
4 days ago
ASCII Table
Chinay-Domitrix
195
2,171ms
4 days ago
Number Spiral
Chinay-Domitrix
305
2,514ms
4 days ago
ISBN
Chinay-Domitrix
118
2,172ms
4 days ago
Happy Numbers (Long)
Chinay-Domitrix
117
2,230ms
4 days ago
Arrows
Chinay-Domitrix
240
4,657ms
4 days ago
Kolakoski Sequence
Chinay-Domitrix
222
2,177ms
4 days ago
Levenshtein Distance
Chinay-Domitrix
330
2,808ms
4 days ago
Vampire Numbers
Chinay-Domitrix
304
2,570ms
4 days ago
Tongue-twisters
Chinay-Domitrix
432
2,119ms
4 days ago
Tower of Hanoi
Shanethegamer
70
1,991ms
4 days ago
Leyland Numbers
Chinay-Domitrix
242
3,271ms
4 days ago
√2
Chinay-Domitrix
56
2,871ms
4 days ago
Morse Encoder
Chinay-Domitrix
1,287
4,127ms
4 days ago
Abundant Numbers (Long)
jkelly467
61
3,515ms
4 days ago
Emirp Numbers
Chinay-Domitrix
125
2,646ms
4 days ago
Minesweeper
Chinay-Domitrix
267
2,210ms
4 days ago
Rijndael S-box
snoozingnewt
280
2,161ms
4 days ago
Minesweeper
jkelly467
222
2,260ms
4 days ago
Happy Numbers
jkelly467
71
1,958ms
5 days ago
Tower of Hanoi
bitsandbeyond
67
2,052ms
6 days ago
ROT13
edsrzf
🥈
66
2,119ms
6 days ago
Minesweeper
albanian-laundromat
🥈
174
2,704ms
6 days ago
ASCII Table
snoozingnewt
152
2,090ms
6 days ago
Tower of Hanoi
pardouin
67
1,966ms
6 days ago
Arabic to Roman
blaztoma
197
2,606ms
7 days ago
Minesweeper
edsrzf
💎
110
2,132ms
7 days ago
Game of Life
JayXon
💎
95
2,149ms
7 days ago
Game of Life
edsrzf
🥈
98
2,032ms
7 days ago
Minesweeper
blaztoma
🥉
196
2,111ms
8 days ago
Vampire Numbers
jkelly467
220
4,455ms
8 days ago
Tower of Hanoi
stefangimmillaro
66
2,050ms
8 days ago
Mandelbrot
snoozingnewt
202
2,088ms
9 days ago
Tutorial
Openstreetmapler
138
4,332ms
9 days ago
Tower of Hanoi
albanian-laundromat
96
1,971ms
9 days ago
Kolakoski Sequence
snoozingnewt
124
2,262ms
9 days ago
Emirp Numbers
lboust
153
2,204ms
10 days ago
Ellipse Perimeters
Shanethegamer
102
4,191ms
11 days ago
Fizz Buzz
jkelly467
89
4,290ms
11 days ago
Quine
jkelly467
70
2,062ms
12 days ago
Musical Chords
emgordon154
🥉
149
2,273ms
13 days ago
Evil Numbers (Long)
Babafaba
50
2,023ms
14 days ago
Odious Numbers (Long)
Babafaba
🥉
49
1,961ms
14 days ago
Odious Numbers (Long)
snoozingnewt
🥉
49
2,041ms
14 days ago
Odious Numbers
snoozingnewt
48
2,088ms
14 days ago
Evil Numbers (Long)
snoozingnewt
50
2,069ms
14 days ago
Evil Numbers
snoozingnewt
48
2,001ms
14 days ago
Fractions
Shanethegamer
103
2,284ms
14 days ago
Odious Numbers
jkelly467
48
2,627ms
15 days ago
Fibonacci
Mikey-Beep
54
2,244ms
15 days ago
Tongue-twisters
snoozingnewt
366
2,399ms
15 days ago
Evil Numbers
maxemann96
48
2,379ms
16 days ago
Collatz
jkelly467
85
2,136ms
16 days ago
ASCII Table
edsrzf
121
2,137ms
17 days ago
DFA Simulator
jkelly467
383
4,727ms
17 days ago
𝑒
mpolla
1,011
2,673ms
17 days ago
99 Bottles of Beer
jkelly467
308
2,810ms
19 days ago
Pernicious Numbers
snoozingnewt
🥇
42
2,045ms
19 days ago
brainfuck
snoozingnewt
389
2,621ms
19 days ago
99 Bottles of Beer
emgordon154
💎
263
2,217ms
19 days ago
Transpose Sentence
edsrzf
92
2,194ms
21 days ago
Hilbert Curve
snoozingnewt
560
2,173ms
21 days ago
Transpose Sentence
JayXon
💎
86
2,231ms
21 days ago
DFA Simulator
snoozingnewt
220
2,297ms
21 days ago
Abundant Numbers
jkelly467
61
2,050ms
22 days ago
Foo Fizz Buzz Bar
snoozingnewt
131
2,253ms
22 days ago
Tutorial
Babafaba
138
4,036ms
23 days ago
Trinomial Triangle
jkelly467
110
2,267ms
24 days ago