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
Bytes
Time
Submitted
Star Wars Opening Crawl
Babafaba
502
17ms
a min ago
Rijndael S-box
luuumine
255
130ms
7 mins ago
brainfuck
levinwinter
195
28ms
11 mins ago
QR Decoder
Yax42
264
308ms
12 mins ago
Pangram Grep
alexsave
130
13ms
15 mins ago
π
duckyluuk
64
12ms
25 mins ago
Rijndael S-box
luuumine
237
16ms
29 mins ago
Time Distance
Maashau
447
3ms
34 mins ago
Tutorial
neosimsim
68
6ms
39 mins ago
Quine
sunleonid
🥇
31
27ms
49 mins ago
Tongue-twisters
rucin93
🥈
279
9ms
64 mins ago
Fibonacci
solisolu
85
27ms
65 mins ago
brainfuck
edsrzf
💎
169
5ms
77 mins ago
12 Days of Christmas
LeviKataja
797
10ms
82 mins ago
Divisors
HumanoidCPU
78
109ms
2 hours ago
Prime Numbers (Long)
DialFrost
🥇
56
129ms
2 hours ago
Hexdump
edsrzf
🥉
162
4ms
2 hours ago
Prime Numbers (Long)
DialFrost
99
289ms
2 hours ago
Day of Week
rahulbyte-js
220
12ms
3 hours ago
Tutorial
sunleonid
65
10ms
3 hours ago
Minesweeper
emgordon154
🥇
53
330ms
3 hours ago
99 Bottles of Beer
kumavale
287
227ms
3 hours ago
Sierpiński Triangle
edsrzf
🥈
87
41ms
3 hours ago
Sierpiński Triangle
edsrzf
86
5ms
4 hours ago
United States
snoozingnewt
🥇
63
75ms
4 hours ago
Polyominoes
albanian-laundromat
💎
362
1,257ms
4 hours ago
Billiards
snoozingnewt
🥈
226
114ms
4 hours ago
N Queens
snoozingnewt
152
676ms
4 hours ago
Christmas Trees
snoozingnewt
81
10ms
4 hours ago
Billiards
snoozingnewt
321
119ms
4 hours ago
Billiards
snoozingnewt
212
553ms
4 hours ago
Billiards
snoozingnewt
220
14ms
4 hours ago
Zodiac Signs
snoozingnewt
341
52ms
4 hours ago
N Queens
snoozingnewt
191
104ms
4 hours ago
N Queens
snoozingnewt
152
52ms
4 hours ago
τ
snoozingnewt
79
716ms
5 hours ago
τ
snoozingnewt
78
11ms
5 hours ago
π
snoozingnewt
79
738ms
5 hours ago
π
snoozingnewt
78
15ms
5 hours ago
Fibonacci
Babafaba
29
32ms
5 hours ago
Prime Numbers (Long)
AlephSquirrel
48
207ms
5 hours ago
Prime Numbers
AlephSquirrel
46
3ms
5 hours ago
Kolakoski Sequence
snoozingnewt
106
97ms
5 hours ago
π
sunleonid
🥇
65
35ms
5 hours ago
Number Spiral
snoozingnewt
🥉
140
91ms
5 hours ago
Number Spiral
snoozingnewt
102
452ms
5 hours ago
Number Spiral
snoozingnewt
102
10ms
5 hours ago
Catalan’s Constant
snoozingnewt
🥉
475
507ms
5 hours ago
Kolakoski Constant
snoozingnewt
🥉
237
326ms
5 hours ago
Sudoku
snoozingnewt
🥉
660
4,110ms
5 hours ago
Levenshtein Distance
cros107
145
59ms
5 hours ago
Time Distance
snoozingnewt
309
111ms
5 hours ago
Tic-tac-toe
snoozingnewt
218
114ms
5 hours ago
Time Distance
snoozingnewt
258
611ms
5 hours ago
Time Distance
snoozingnewt
266
11ms
5 hours ago
Tic-tac-toe
snoozingnewt
154
20ms
5 hours ago
Star Wars Opening Crawl
snoozingnewt
🥈
469
132ms
5 hours ago
Star Wars Opening Crawl
snoozingnewt
328
10ms
5 hours ago
Spelling Numbers
snoozingnewt
416
117ms
5 hours ago
Spelling Numbers
snoozingnewt
378
437ms
6 hours ago
Spelling Numbers
snoozingnewt
386
19ms
6 hours ago
Maze
edsrzf
💎
201
4,698ms
6 hours ago
Poker
snoozingnewt
444
207ms
6 hours ago
Poker
snoozingnewt
353
1,861ms
6 hours ago
Poker
snoozingnewt
361
17ms
6 hours ago
Continued Fractions
albanian-laundromat
236
1,198ms
6 hours ago
Rijndael S-box
emgordon154
156
45ms
6 hours ago
Partition Numbers
canissimia
💎
319
3,979ms
6 hours ago
Odious Numbers (Long)
emgordon154
🥇
15
38ms
6 hours ago
Odious Numbers
emgordon154
🥇
14
36ms
6 hours ago
Continued Fractions
GolfingSuccess
47
91ms
6 hours ago
Evil Numbers
emgordon154
🥇
14
36ms
6 hours ago
Evil Numbers (Long)
emgordon154
17
39ms
6 hours ago
Fibonacci
Zach1031
43
3ms
6 hours ago
Divisors
emgordon154
🥇
24
48ms
6 hours ago