Recent Solutions
Achievements
Cheevos
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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Multitap Input
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
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
ALGOL 68
ArkScript
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
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
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
ALGOL 68
ArkScript
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
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
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Multitap Input
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
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Fractions
lelbal
75
19ms
22 mins ago
Levenshtein Distance
Seek64
🥇
90
34ms
70 mins ago
DFA Simulator
blaztoma
158
11ms
92 mins ago
Levenshtein Distance
stefangimmillaro
92
32ms
99 mins ago
Levenshtein Distance
JayXon
🥇
90
32ms
103 mins ago
Foo Fizz Buzz Bar
Arkadios200
137
13ms
4 hours ago
Partition Numbers
mantaslu
137
10ms
6 hours ago
Pernicious Numbers (Long)
JNedd26
135
29ms
7 hours ago
Prime Numbers (Long)
JNedd26
75
2,739ms
7 hours ago
Prime Numbers
JNedd26
73
11ms
7 hours ago
Musical Chords
scpchicken
224
33ms
8 hours ago
Levenshtein Distance
ovs-code
🥇
90
30ms
8 hours ago
Kaprekar Numbers
DialFrost
80
2,113ms
9 hours ago
Game of Life
solisolu
225
30ms
9 hours ago
Sierpiński Triangle
retrohun
92
11ms
9 hours ago
Musical Chords
madex
218
12ms
9 hours ago
Pernicious Numbers (Long)
retrohun
60
22ms
9 hours ago
Mandelbrot
retrohun
384
21ms
9 hours ago
Levenshtein Distance
CaedenHarper
🥇
90
35ms
9 hours ago
Christmas Trees
mantaslu
77
10ms
10 hours ago
99 Bottles of Beer
mantaslu
231
11ms
10 hours ago
N Queens
madex
162
43ms
10 hours ago
Levenshtein Distance
edsrzf
92
30ms
10 hours ago
Levenshtein Distance
GolfingSuccess
🥇
90
31ms
11 hours ago
Emojify
scpchicken
142
10ms
12 hours ago
Levenshtein Distance
lukegustafson
🥇
90
30ms
12 hours ago
Levenshtein Distance
Mukundan314
🥇
90
45ms
13 hours ago
Prime Numbers
vgamula
44
9ms
13 hours ago
Levenshtein Distance
kg583
🥇
90
31ms
14 hours ago
Star Wars GPT
vgamula
130
11ms
14 hours ago
Levenshtein Distance
CornerMercury
🥇
90
32ms
14 hours ago
Levenshtein Distance
ndren
🥇
90
33ms
14 hours ago
Star Wars Opening Crawl
scpchicken
314
11ms
15 hours ago
Levenshtein Distance
AlephSquirrel
🥇
90
36ms
15 hours ago
Levenshtein Distance
StefanHabel
🥇
90
30ms
16 hours ago
Levenshtein Distance
DialFrost
92
37ms
16 hours ago
Ten-pin Bowling
scpchicken
197
28ms
16 hours ago
12 Days of Christmas
jusaka
450
10ms
17 hours ago
Fractions
0dyse
108
18ms
17 hours ago
Jacobi Symbol
snoozingnewt
142
11ms
17 hours ago
Gray Code Encoder
jusaka
🥇
62
16ms
18 hours ago
Gray Code Decoder
cros107
82
1,060ms
18 hours ago
π
mantaslu
112
4,638ms
18 hours ago
Gray Code Encoder
cros107
🥇
62
16ms
18 hours ago
Star Wars GPT
Matter1024
182
12ms
18 hours ago
Odious Numbers
mkikta
46
17ms
19 hours ago
Vampire Numbers
zgialor-lab
140
301ms
19 hours ago
United States
sean-niemann
115
14ms
19 hours ago
Fizz Buzz
mkikta
62
10ms
19 hours ago
Collatz
mkikta
76
27ms
19 hours ago
Rock-paper-scissors-Spock-lizard
zgialor-lab
415
11ms
19 hours ago
Arabic to Roman
mantaslu
177
31ms
20 hours ago
Tower of Hanoi
mantaslu
59
14ms
20 hours ago
Trinomial Triangle
mantaslu
69
12ms
20 hours ago
Pascal’s Triangle
mantaslu
57
11ms
20 hours ago
Polyominoes
ahmetdemirag
276
28ms
21 hours ago
Gray Code Encoder
Apfelvater
66
20ms
22 hours ago
Mahjong
FortuiteMan
532
19ms
24 hours ago
Topological Sort
madex
136
21ms
25 hours ago
Abundant Numbers
rucin93
54
17ms
25 hours ago
brainfuck
Languag3
196
23ms
26 hours ago
Ordinal Numbers
StefanHabel
87
12ms
27 hours ago
N Queens
scpchicken
141
12ms
27 hours ago
Tutorial
JNedd26
92
11ms
28 hours ago
Pangram Grep
JNedd26
88
12ms
28 hours ago
24 Game
scpchicken
208
2,149ms
29 hours ago
QR Decoder
scpchicken
210
19ms
29 hours ago
Tic-tac-toe
scpchicken
119
32ms
30 hours ago
Card Number Validation
scpchicken
118
46ms
31 hours ago
Multitap Input
scpchicken
131
18ms
32 hours ago
Morse Encoder
scpchicken
192
14ms
33 hours ago
Alphabetic Numbers
pardouin
179
14ms
33 hours ago
Gray Code Decoder
klixel
77
19ms
34 hours ago
Gray Code Encoder
FortuiteMan
🥇
62
18ms
34 hours ago
Gray Code Encoder
klixel
🥇
62
17ms
34 hours ago
Gray Code Decoder
FortuiteMan
75
23ms
34 hours ago
Rule 110
Junebug2763
330
27ms
35 hours ago
Fizz Buzz
Junebug2763
104
13ms
35 hours ago
Fibonacci
Junebug2763
59
11ms
35 hours ago
Fibonacci
Arkadios200
41
12ms
35 hours ago