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
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
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
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
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
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
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
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Arithmetic Numbers
snoozingnewt
101
9 hours ago
Abundant Numbers
snoozingnewt
80
11 hours ago
Abundant Numbers (Long)
snoozingnewt
80
11 hours ago
Trinomial Triangle
edsrzf
💎
95
2 days ago
Fizz Buzz
snoozingnewt
75
2 days ago
Medal Tally
albanian-laundromat
🥈
203
3 days ago
Divisors
Yax42
151
3 days ago
Trinomial Triangle
dokutan
2,082
3 days ago
Farey Sequence
albanian-laundromat
99
5 days ago
Game of Life
albanian-laundromat
🥉
169
5 days ago
Prime Numbers (Long)
snoozingnewt
🥇
54
5 days ago
Prime Numbers
snoozingnewt
53
5 days ago
Minesweeper
albanian-laundromat
174
5 days ago
Trinomial Triangle
albanian-laundromat
🥈
111
5 days ago
Pernicious Numbers
Yax42
44
5 days ago
Gray Code Decoder
kg583
100
6 days ago
Trinomial Triangle
snoozingnewt
🥉
138
9 days ago
Foo Fizz Buzz Bar
snoozingnewt
144
9 days ago
Trinomial Triangle
blaztoma
344
9 days ago
Divisors
snoozingnewt
62
9 days ago
Trinomial Triangle
CaedenHarper
2,082
9 days ago
Niven Numbers (Long)
snoozingnewt
87
10 days ago
Niven Numbers
snoozingnewt
58
10 days ago
Sphenic Numbers
LostSyntax21
186
10 days ago
Sphenic Numbers
albanian-laundromat
80
10 days ago
Quine
CaedenHarper
257
11 days ago
Emirp Numbers
snoozingnewt
236
11 days ago
Emirp Numbers (Long)
snoozingnewt
233
11 days ago
Pernicious Numbers (Long)
snoozingnewt
102
11 days ago
Pernicious Numbers
snoozingnewt
92
11 days ago
Odious Numbers (Long)
snoozingnewt
91
11 days ago
Odious Numbers
snoozingnewt
90
11 days ago
Evil Numbers
snoozingnewt
90
11 days ago
Evil Numbers (Long)
snoozingnewt
91
11 days ago
Fibonacci
snoozingnewt
68
11 days ago
Levenshtein Distance
InigoK
314
13 days ago
Ascending Primes
albanian-laundromat
🥉
116
13 days ago
Divisors
albanian-laundromat
🥇
61
13 days ago
Collatz
kmathis22
106
14 days ago
Musical Chords
albanian-laundromat
🥉
300
15 days ago
Recamán
snoozingnewt
92
15 days ago
Smith Numbers
albanian-laundromat
175
16 days ago
Happy Numbers (Long)
albanian-laundromat
101
16 days ago
Partition Numbers
snoozingnewt
109
16 days ago
Look and Say
albanian-laundromat
🥉
115
17 days ago
ISBN
albanian-laundromat
133
17 days ago
Fibonacci
fuzzylojik-golf
52
17 days ago
24 Game
rucin93
💎
339
19 days ago
Game of Life
JayXon
💎
134
20 days ago
Game of Life
edsrzf
🥈
135
20 days ago
Morse Encoder
albanian-laundromat
253
21 days ago
Morse Decoder
albanian-laundromat
🥉
224
21 days ago
Repeating Decimals
albanian-laundromat
🥈
298
21 days ago
Time Distance
albanian-laundromat
🥉
311
21 days ago
Cubes
albanian-laundromat
278
21 days ago
Catalan Numbers
albanian-laundromat
💎
221
21 days ago
Pangram Grep
albanian-laundromat
118
22 days ago
Lucky Tickets
albanian-laundromat
🥇
218
23 days ago
Niven Numbers
albanian-laundromat
🥇
50
23 days ago
Abundant Numbers (Long)
albanian-laundromat
🥇
66
23 days ago
Abundant Numbers
albanian-laundromat
66
23 days ago
Reversi
albanian-laundromat
💎
207
23 days ago
Tutorial
snoozingnewt
87
24 days ago
Happy Numbers (Long)
snoozingnewt
125
26 days ago
Happy Numbers
snoozingnewt
125
26 days ago
Spelling Numbers
albanian-laundromat
464
12 Sep 2025
United States
dokutan
🥈
201
11 Sep 2025
Proximity Grid
albanian-laundromat
🥈
236
11 Sep 2025
Gray Code Decoder
albanian-laundromat
124
11 Sep 2025
CSS Colors
albanian-laundromat
🥈
1,017
11 Sep 2025
Scrambled Sort
albanian-laundromat
💎
177
11 Sep 2025
Tongue-twisters
dokutan
334
10 Sep 2025
Morse Decoder
sean-niemann
💎
211
10 Sep 2025
Niven Numbers (Long)
dokutan
94
8 Sep 2025
Niven Numbers
dokutan
55
8 Sep 2025