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
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
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
Topological Sort
GrayJoKing
73
98ms
85 mins ago
Abundant Numbers (Long)
Matter1024
47
53ms
7 hours ago
Abundant Numbers
Matter1024
46
32ms
7 hours ago
Niven Numbers (Long)
Matter1024
🥇
38
37ms
7 hours ago
Niven Numbers
Matter1024
38
30ms
7 hours ago
Evil Numbers
blaztoma
33
33ms
21 hours ago
United States
blaztoma
83
32ms
25 hours ago
Fizz Buzz
JOrE20
63
31ms
2 days ago
Musical Chords
bitsandbeyond
137
33ms
2 days ago
Minesweeper
pardouin
🥈
68
727ms
2 days ago
Fizz Buzz
duckyluuk
🥉
50
30ms
3 days ago
Quine
Natanaelel
🥇
5
31ms
3 days ago
Quine
iczelia
🥇
5
33ms
4 days ago
Divisors
jacekwladzinski
44
72ms
4 days ago
Tutorial
Boowie41
28
35ms
4 days ago
Partition Numbers
olleicua
134
32ms
4 days ago
Mandelbrot
olleicua
97
1,027ms
5 days ago
Quine
JOrE20
25
32ms
5 days ago
φ
LostSyntax21
52
38ms
5 days ago
Minesweeper
olleicua
89
58ms
5 days ago
Polyominoes
olleicua
196
81ms
5 days ago
Star Wars GPT
olleicua
84
32ms
5 days ago
Hilbert Curve
MeWhenI
639
30ms
6 days ago
Zodiac Signs
olleicua
119
32ms
6 days ago
Medal Tally
olleicua
109
32ms
6 days ago
𝑒
JOrE20
1,009
32ms
7 days ago
Tower of Hanoi
HumanoidCPU
3,582
32ms
7 days ago
Diamonds
JOrE20
1,725
32ms
7 days ago
Quine
lynn
🥇
5
32ms
8 days ago
Collatz
Laellekoenig
59
34ms
8 days ago
brainfuck
beirigo
255
99ms
8 days ago
Tutorial
Babafaba
28
32ms
9 days ago
Roman to Arabic
Babafaba
58
38ms
9 days ago
Fizz Buzz
gigaprofisi
🥉
50
32ms
9 days ago
Gijswijt’s Sequence
ovs-code
🥈
48
2,321ms
10 days ago
Minesweeper
nwellnhof
85
540ms
10 days ago
Tower of Hanoi
Natanaelel
53
32ms
10 days ago
Set
BREMAUCY
99
60ms
10 days ago
Minesweeper
radarek
💎
65
74ms
10 days ago
Farey Sequence
blaztoma
78
32ms
10 days ago
Tower of Hanoi
Shanethegamer
54
34ms
11 days ago
Card Number Validation
snoozingnewt
111
36ms
11 days ago
Minesweeper
emgordon154
105
47ms
11 days ago
Quine
RYSF13
25
33ms
12 days ago
ASCII Table
snoozingnewt
115
32ms
12 days ago
Tower of Hanoi
pardouin
47
38ms
12 days ago
12 Days of Christmas
JOrE20
470
32ms
13 days ago
Tower of Hanoi
bitsandbeyond
52
31ms
13 days ago
Scrambled Sort
albanian-laundromat
71
32ms
13 days ago
Minesweeper
Natanaelel
101
53ms
13 days ago
Forsyth–Edwards Notation
albanian-laundromat
79
30ms
14 days ago
Trinomial Triangle
Andriamanitra
64
32ms
14 days ago
Poker
olleicua
311
31ms
14 days ago
Day of Week
akiratee
54
34ms
14 days ago
Day of Week
beirigo
48
32ms
14 days ago
Set
snoozingnewt
101
47ms
14 days ago
Vampire Numbers
blaztoma
153
508ms
14 days ago
Mandelbrot
snoozingnewt
140
249ms
14 days ago
Tutorial
Openstreetmapler
135
36ms
15 days ago
ROT13
albanian-laundromat
40
31ms
15 days ago
Ascending Primes
blaztoma
76
100ms
15 days ago
Tower of Hanoi
stefangimmillaro
51
31ms
15 days ago
Minesweeper
blaztoma
142
38ms
16 days ago
Repeating Decimals
blaztoma
157
32ms
16 days ago
N Queens
blaztoma
96
139ms
16 days ago
Fibonacci
Babafaba
31
38ms
16 days ago
Partition Numbers
blaztoma
61
34ms
17 days ago
Ellipse Perimeters
rucin93
53
31ms
17 days ago
Minesweeper
Shanethegamer
110
46ms
18 days ago
Pangram Grep
Ralac07
117
33ms
18 days ago
Minesweeper
MeWhenI
126
40ms
18 days ago
Minesweeper
stefangimmillaro
🥉
84
50ms
18 days ago
Forsyth–Edwards Notation
blaztoma
89
31ms
18 days ago
Pangram Grep
blaztoma
42
36ms
19 days ago
Minesweeper
ovs-code
🥉
84
65ms
19 days ago