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
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
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
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 Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
QR Encoder
Quadratic Formula
Scrambled Alphabetization
Semiprime Numbers
Snake
Sphenic Numbers
Star Wars GPT
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
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
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
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
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
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 Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
QR Encoder
Quadratic Formula
Scrambled Alphabetization
Semiprime Numbers
Snake
Sphenic Numbers
Star Wars GPT
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Chars
Submitted
Evil Numbers
themoonisacheese
9
10 hours ago
Partition Numbers
themoonisacheese
567
10 hours ago
ROT13
themoonisacheese
15
10 hours ago
Evil Numbers (Long)
themoonisacheese
9
10 hours ago
ISBN
plcc0
21
3 days ago
Tutorial
retrohun
80
10 days ago
Fizz Buzz
plcc0
12
14 days ago
Partition Numbers
plcc0
649
16 days ago
Rijndael S-box
ehulinsky
770
16 days ago
Foo Fizz Buzz Bar
themoonisacheese
25
18 days ago
Fizz Buzz
themoonisacheese
12
18 days ago
Forsyth–Edwards Notation
plcc0
45
19 days ago
Prime Numbers (Long)
plcc0
6
19 days ago
Emirp Numbers
plcc0
14
19 days ago
Foo Fizz Buzz Bar
plcc0
26
21 days ago
Look and Say
plcc0
12
21 days ago
Catalan Numbers
plcc0
12
22 days ago
PalindromemordnilaP
plcc0
17
22 days ago
12 Days of Christmas
plcc0
224
22 days ago
Van Eck Sequence
plcc0
15
22 days ago
Levenshtein Distance
plcc0
7
22 days ago
Collatz
plcc0
21
22 days ago
√2
plcc0
13
22 days ago
Tongue-twisters
plcc0
234
23 days ago
ISBN
themoonisacheese
24
25 days ago
Forsyth–Edwards Notation
themoonisacheese
46
25 days ago
Reverse Polish Notation
themoonisacheese
13
14 Mar 2025
Niven Numbers (Long)
themoonisacheese
7
10 Mar 2025
Niven Numbers
themoonisacheese
6
10 Mar 2025
12 Days of Christmas
HumanoidCPU
2,371
9 Mar 2025
𝑒
gigaprofisi
1,005
6 Mar 2025
Abundant Numbers
plcc0
9
6 Mar 2025
Prime Numbers
plcc0
5
6 Mar 2025
Odious Numbers
plcc0
8
5 Mar 2025
Leap Years
themoonisacheese
24
5 Mar 2025
Emirp Numbers (Long)
themoonisacheese
12
5 Mar 2025
Pernicious Numbers
plcc0
8
5 Mar 2025
Cubes
HumanoidCPU
2,829
5 Mar 2025
Evil Numbers
plcc0
9
4 Mar 2025
Abundant Numbers (Long)
themoonisacheese
9
3 Mar 2025
Odious Numbers
themoonisacheese
8
3 Mar 2025
Odious Numbers (Long)
themoonisacheese
8
3 Mar 2025
Card Number Validation
themoonisacheese
20
3 Mar 2025
Pernicious Numbers (Long)
themoonisacheese
8
3 Mar 2025
Pernicious Numbers
themoonisacheese
8
3 Mar 2025
Abundant Numbers
themoonisacheese
10
3 Mar 2025
Rijndael S-box
themoonisacheese
267
3 Mar 2025
Transpose Sentence
themoonisacheese
8
3 Mar 2025
Emirp Numbers
themoonisacheese
12
3 Mar 2025
Quine
themoonisacheese
7
3 Mar 2025
Tutorial
gigaprofisi
80
3 Mar 2025
Divisors
themoonisacheese
5
27 Feb 2025
Tongue-twisters
themoonisacheese
222
27 Feb 2025
Fizz Buzz
RedzGoose
45
26 Feb 2025
12 Days of Christmas
themoonisacheese
334
26 Feb 2025
𝑒
themoonisacheese
14
26 Feb 2025
ln 2
themoonisacheese
18
26 Feb 2025
Tongue-twisters
dokutan
234
26 Feb 2025
99 Bottles of Beer
themoonisacheese
174
26 Feb 2025
Odd Polyomino Tiling
HumanoidCPU
21,433
26 Feb 2025
Prime Numbers (Long)
themoonisacheese
6
25 Feb 2025
Prime Numbers
themoonisacheese
5
25 Feb 2025
Collatz
themoonisacheese
25
25 Feb 2025
Fibonacci
themoonisacheese
12
25 Feb 2025
Semiprime Numbers
plcc0
11
25 Feb 2025
Tutorial
RedzGoose
30
25 Feb 2025
Leap Years
RedzGoose
28
25 Feb 2025
Highly Composite Numbers
plcc0
184
24 Feb 2025
Apéry’s Constant
HumanoidCPU
1,005
24 Feb 2025
Partition Numbers
HumanoidCPU
649
24 Feb 2025
√2
DialFrost
14
22 Feb 2025
Fibonacci
RedzGoose
11
22 Feb 2025
Semiprime Numbers
RubenVerg
18
21 Feb 2025
Tutorial
themoonisacheese
10
21 Feb 2025
φ
themoonisacheese
14
21 Feb 2025