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
Chars
Submitted
Rijndael S-box
KasperKivimaeki
790
4 hours ago
Christmas Trees
kodaimasano
175
24 hours ago
Tutorial
tomtheisen
76
29 hours ago
Prime Numbers (Long)
fuzzylojik-golf
83
31 hours ago
Mandelbrot
tomtheisen
141
32 hours ago
Mandelbrot
Yax42
🥉
135
34 hours ago
Odious Numbers
fuzzylojik-golf
57
35 hours ago
Evil Numbers
fuzzylojik-golf
57
35 hours ago
Tongue-twisters
Mukundan314
244
39 hours ago
Tutorial
nilan425
372
41 hours ago
Mandelbrot
namelessiw
💎
133
42 hours ago
Mandelbrot
stefangimmillaro
140
44 hours ago
√2
kodaimasano
1,024
47 hours ago
Scrambled Sort
aliakseikalosha
203
2 days ago
Mandelbrot
dokutan
372
2 days ago
Prime Numbers
fuzzylojik-golf
66
2 days ago
Diamonds
OmameBeans
207
2 days ago
Fizz Buzz
Grabnukebomb
🥈
80
2 days ago
Fizz Buzz
ertz1ertz
🥈
80
2 days ago
Mandelbrot
sean-niemann
🥈
134
2 days ago
Christmas Trees
OmameBeans
123
2 days ago
Mandelbrot
HumanoidCPU
3,380
3 days ago
Quine
gigaprofisi
200
4 days ago
Leap Years
fuzzylojik-golf
61
5 days ago
Partition Numbers
tomtheisen
109
5 days ago
Tutorial
MattParkerDev
111
5 days ago
τ
aliakseikalosha
296
5 days ago
π
aliakseikalosha
252
5 days ago
Number Spiral
Yax42
264
5 days ago
Number Spiral
OmameBeans
197
5 days ago
Fizz Buzz
123mjb
98
5 days ago
Hexagonal Spiral
HumanoidCPU
1,386
6 days ago
Tutorial
DABANANAMAN120
123
6 days ago
Scrambled Sort
tomtheisen
💎
120
6 days ago
Scrambled Sort
Yax42
🥉
122
6 days ago
Arithmetic Numbers
OmameBeans
188
6 days ago
Fizz Buzz
OmameBeans
84
6 days ago
Divisors
OmameBeans
82
6 days ago
Abundant Numbers
OmameBeans
118
6 days ago
12 Days of Christmas
OmameBeans
595
6 days ago
24 Game
DialFrost
416
6 days ago
Abundant Numbers (Long)
DialFrost
🥉
83
6 days ago
Prime Numbers (Long)
DialFrost
69
6 days ago
Vampire Numbers
namelessiw
179
6 days ago
Emirp Numbers (Long)
namelessiw
120
6 days ago
CSS Colors
HumanoidCPU
6,269
6 days ago
24 Game
rucin93
320
7 days ago
SI Units
namelessiw
🥈
455
7 days ago
Set
namelessiw
195
7 days ago
24 Game
namelessiw
🥇
226
7 days ago
Vampire Numbers
Yax42
235
7 days ago
Kaprekar Numbers
SirBogman
93
8 days ago
Abundant Numbers
okuzmeniuk
119
8 days ago
99 Bottles of Beer
okuzmeniuk
458
8 days ago
12 Days of Christmas
okuzmeniuk
539
8 days ago
ASCII Table
mntdn
212
8 days ago
24 Game
Yax42
🥉
231
9 days ago
Fibonacci
123mjb
59
9 days ago
Collatz
123mjb
90
9 days ago
Sierpiński Triangle
Yax42
161
9 days ago
Sierpiński Triangle
sean-niemann
🥇
66
9 days ago
Tic-tac-toe
aliakseikalosha
210
10 days ago
Musical Chords
bitsandbeyond
941
10 days ago
Proximity Grid
Yax42
506
10 days ago
Musical Chords
dokutan
735
10 days ago
24 Game
sean-niemann
370
10 days ago
Zeckendorf Representation
Yax42
132
11 days ago
12 Days of Christmas
shawncrabtree
607
12 days ago
Mandelbrot
MeWhenI
142
12 days ago
Spelling Numbers
namelessiw
366
12 days ago
Quadratic Formula
namelessiw
583
12 days ago
Abundant Numbers
razvandmtr
86
12 days ago
Emirp Numbers (Long)
Yax42
156
12 days ago
Smith Numbers
Yax42
191
12 days ago
Rijndael S-box
Yax42
238
12 days ago