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
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
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
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
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
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
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
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
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
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
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
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
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
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
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
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Trinomial Triangle
Natanaelel
24
2 days ago
Trinomial Triangle
ovs-code
21
2 days ago
Evil Numbers (Long)
gigaprofisi
1,949
2 days ago
Evil Numbers
gigaprofisi
69
2 days ago
United States
2bular
🥉
108
2 days ago
Fractions
dokutan
77
3 days ago
Mandelbrot
2bular
🥇
60
4 days ago
Cubes
dokutan
676
5 days ago
Mandelbrot
MeWhenI
339
5 days ago
Mandelbrot
dokutan
449
6 days ago
Mandelbrot
SirBogman
72
6 days ago
Mandelbrot
ovs-code
🥇
60
6 days ago
Mandelbrot
HumanoidCPU
10,208
6 days ago
Mandelbrot
zacjl
🥇
60
6 days ago
Lucky Numbers
2bular
🥉
29
7 days ago
Leyland Numbers
zacjl
42
7 days ago
ISBN
gnuvince
45
7 days ago
Pangram Grep
gnuvince
25
7 days ago
Fizz Buzz
gnuvince
55
7 days ago
ROT13
gnuvince
55
7 days ago
Odious Numbers (Long)
gnuvince
16
7 days ago
Odious Numbers
gnuvince
14
7 days ago
Transpose Sentence
gnuvince
49
7 days ago
Factorial Factorisation
gnuvince
112
7 days ago
Day of Week
gnuvince
155
7 days ago
United States
gnuvince
381
8 days ago
Fibonacci
gnuvince
16
8 days ago
Emirp Numbers
gnuvince
34
8 days ago
Collatz
gnuvince
39
8 days ago
Ascending Primes
gnuvince
34
8 days ago
Factorial Factorisation
GrayJoKing
🥇
40
8 days ago
Billiards
SirBogman
78
9 days ago
Roman to Arabic
zacjl
41
9 days ago
Smith Numbers
GrayJoKing
🥉
50
9 days ago
Hexdump
2bular
🥉
88
9 days ago
Lucky Numbers
GrayJoKing
🥇
28
9 days ago
Arithmetic Numbers
GrayJoKing
🥉
29
10 days ago
Emirp Numbers
GrayJoKing
31
10 days ago
Ordinal Numbers
GrayJoKing
🥇
33
11 days ago
Kaprekar Numbers
SirBogman
🥉
53
11 days ago
λ
ovs-code
💎
176
12 days ago
Leyland Numbers
2bular
46
12 days ago
Look and Say
lynn
33
13 days ago
brainfuck
GrayJoKing
127
14 days ago
24 Game
Shanethegamer
19,241
14 days ago
Sudoku
ovs-code
💎
173
15 days ago
ASCII Table
emgordon154
96
15 days ago
Reverse Polish Notation
2bular
🥉
44
15 days ago
Look and Say
SwordF-Official
49
16 days ago
Rule 110
2bular
44
17 days ago
Polygon Triangulations
Shanethegamer
5,291
17 days ago
Catalan Numbers
2bular
🥇
44
17 days ago
99 Bottles of Beer
2bular
🥈
187
19 days ago
Day of Week
ovs-code
💎
97
20 days ago
Medal Tally
zacjl
🥈
67
20 days ago
Day of Week
zacjl
🥈
101
21 days ago
Leyland Numbers
emgordon154
59
22 days ago
Evil Numbers
emgordon154
15
22 days ago
Pernicious Numbers (Long)
emgordon154
27
22 days ago
Pangram Grep
emgordon154
22
22 days ago
Inventory Sequence
emgordon154
37
22 days ago
Reverse Polish Notation
emgordon154
115
22 days ago
Ordinal Numbers
emgordon154
65
22 days ago
Abundant Numbers (Long)
emgordon154
47
22 days ago
Fractions
emgordon154
43
22 days ago
Evil Numbers (Long)
emgordon154
17
22 days ago
Odious Numbers
emgordon154
15
22 days ago
Odious Numbers (Long)
emgordon154
16
22 days ago
Transpose Sentence
emgordon154
🥇
24
22 days ago
Scrambled Sort
emgordon154
26
22 days ago
φ
ovs-code
💎
58
23 days ago
Tutorial
xvogt
31
24 days ago
Scrambled Sort
MeWhenI
36
24 days ago
12 Days of Christmas
2bular
400
25 days ago
Tongue-twisters
2bular
🥈
267
26 days ago