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
Rule 110
scpchicken
79
13ms
19 mins ago
QR Decoder
jusaka
204
10ms
30 mins ago
Rule 110
CaedenHarper
71
10ms
57 mins ago
N Queens
jusaka
135
12ms
65 mins ago
Star Wars GPT
jusaka
123
18ms
67 mins ago
Kolakoski Sequence
BrunoVisnadi
64
35ms
75 mins ago
Seven Segment
scpchicken
132
10ms
2 hours ago
Leyland Numbers
edsrzf
74
12ms
3 hours ago
Prime Numbers
zgialor-lab
69
10ms
3 hours ago
Set
scpchicken
126
27ms
3 hours ago
Intersection
scpchicken
126
41ms
4 hours ago
Quine
reflogedoc
32
11ms
4 hours ago
ASCII Table
zgialor-lab
145
10ms
4 hours ago
Smith Numbers
scpchicken
131
2,675ms
4 hours ago
Catalan Numbers
zgialor-lab
80
18ms
4 hours ago
Smith Numbers
zgialor-lab
138
2,650ms
4 hours ago
Foo Fizz Buzz Bar
zgialor-lab
91
11ms
4 hours ago
Leyland Numbers
zgialor-lab
87
10ms
4 hours ago
Trinomial Triangle
zgialor-lab
104
10ms
4 hours ago
Topological Sort
scpchicken
143
37ms
5 hours ago
Rule 110
Junebug2763
324
25ms
5 hours ago
Tic-tac-toe
zgialor-lab
159
22ms
5 hours ago
Christmas Trees
Aneesh-5
87
10ms
5 hours ago
Mahjong
scpchicken
532
52ms
5 hours ago
SI Units
scpchicken
589
16ms
5 hours ago
Arithmetic Numbers
zgialor-lab
90
1,509ms
5 hours ago
Reverse Polish Notation
zgialor-lab
170
15ms
5 hours ago
Abundant Numbers (Long)
AstroOrbis
75
39ms
5 hours ago
Jacobi Symbol
AstroOrbis
186
19ms
5 hours ago
Star Wars GPT
AstroOrbis
253
11ms
6 hours ago
ISBN
zgialor-lab
120
10ms
6 hours ago
ROT13
zgialor-lab
137
11ms
6 hours ago
Recamán
zgialor-lab
78
18ms
6 hours ago
Kolakoski Sequence
zgialor-lab
61
11ms
6 hours ago
Quine
ComradeSquirrel
32
10ms
6 hours ago
Gray Code Decoder
dokutan
77
18ms
6 hours ago
Fizz Buzz
xXShizukaXx
101
10ms
6 hours ago
99 Bottles of Beer
xXShizukaXx
313
10ms
7 hours ago
Emojify
retrohun
385
10ms
7 hours ago
Leap Years
RealBen9
68
10ms
7 hours ago
Sudoku (Fill-in)
scpchicken
281
62ms
8 hours ago
Divisors
Jakob-L-M
🥇
57
10ms
8 hours ago
Christmas Trees
Jakob-L-M
102
10ms
8 hours ago
Foo Fizz Buzz Bar
Arkadios200
132
12ms
9 hours ago
Musical Chords
scpchicken
179
33ms
9 hours ago
Foo Fizz Buzz Bar
xXShizukaXx
145
11ms
9 hours ago
99 Bottles of Beer
Jakob-L-M
324
17ms
9 hours ago
Leap Years
roupiq
52
17ms
9 hours ago
QR Decoder
roupiq
371
10ms
9 hours ago
𝑒
roupiq
67
17ms
10 hours ago
brainfuck
roupiq
1,240
14ms
10 hours ago
Minesweeper
BrunoVisnadi
148
24ms
11 hours ago
Ordinal Numbers
GolfingSuccess
87
12ms
11 hours ago
Day of Week
roupiq
94
14ms
13 hours ago
Game of Life
solisolu
187
35ms
13 hours ago
Poker
rucin93
381
12ms
15 hours ago
Levenshtein Distance
Natanaelel
🥇
90
28ms
16 hours ago
Game of Life
lelbal
210
164ms
17 hours ago
Prime Numbers
Herbert00709
41
10ms
19 hours ago
Fizz Buzz
roupiq
69
10ms
20 hours ago
Levenshtein Distance
hallvabo
🥇
90
31ms
20 hours ago
Fractions
lelbal
75
17ms
22 hours ago
Levenshtein Distance
Seek64
🥇
90
31ms
23 hours ago
DFA Simulator
blaztoma
158
11ms
24 hours ago
Levenshtein Distance
stefangimmillaro
92
30ms
24 hours ago
Levenshtein Distance
JayXon
🥇
90
31ms
24 hours ago
Partition Numbers
mantaslu
137
10ms
28 hours ago
Pernicious Numbers (Long)
JNedd26
135
29ms
29 hours ago
Prime Numbers (Long)
JNedd26
75
2,739ms
29 hours ago
Prime Numbers
JNedd26
73
11ms
30 hours ago
Levenshtein Distance
ovs-code
🥇
90
30ms
31 hours ago
Kaprekar Numbers
DialFrost
80
2,113ms
31 hours ago
Sierpiński Triangle
retrohun
92
11ms
31 hours ago
Musical Chords
madex
218
12ms
31 hours ago
Pernicious Numbers (Long)
retrohun
60
22ms
32 hours ago
Mandelbrot
retrohun
384
21ms
32 hours ago
Levenshtein Distance
CaedenHarper
🥇
90
35ms
32 hours ago
Christmas Trees
mantaslu
77
10ms
32 hours ago
99 Bottles of Beer
mantaslu
231
11ms
32 hours ago
N Queens
madex
162
43ms
33 hours ago