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
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
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
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
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
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
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Factorial Factorisation
HumanoidCPU
915
5 days ago
Tutorial
Shanethegamer
135
5 days ago
Niven Numbers
DialFrost
93
10 days ago
Gray Code Decoder
edsrzf
136
12 days ago
Fibonacci
edsrzf
85
13 days ago
√2
edsrzf
156
13 days ago
Levenshtein Distance
edsrzf
163
13 days ago
Quine
edsrzf
125
13 days ago
Tutorial
edsrzf
134
13 days ago
Arithmetic Numbers
Shanethegamer
127
13 days ago
Prime Numbers
Shanethegamer
109
13 days ago
Prime Numbers (Long)
Shanethegamer
110
13 days ago
Collatz
Shanethegamer
115
14 days ago
Happy Numbers
Shanethegamer
132
14 days ago
Happy Numbers (Long)
Shanethegamer
132
14 days ago
Sphenic Numbers
Shanethegamer
147
15 days ago
Abundant Numbers
Shanethegamer
116
16 days ago
Abundant Numbers (Long)
Shanethegamer
116
16 days ago
Sphenic Numbers
GolfingSuccess
137
17 days ago
Semiprime Numbers
GolfingSuccess
127
17 days ago
Semiprime Numbers
Shanethegamer
127
18 days ago
Divisors
Shanethegamer
115
18 days ago
Leap Years
Shanethegamer
99
18 days ago
Niven Numbers (Long)
Shanethegamer
114
19 days ago
Fibonacci
Shanethegamer
85
19 days ago
Odd Polyomino Tiling
Shanethegamer
21,484
20 days ago
Highly Composite Numbers
Shanethegamer
445
20 days ago
Hexagonal Spiral
Shanethegamer
1,188
20 days ago
Apéry’s Constant
Shanethegamer
1,056
20 days ago
Mandelbrot
Shanethegamer
10,057
20 days ago
Trinomial Triangle
Shanethegamer
2,120
20 days ago
Hilbert Curve
Shanethegamer
5,171
20 days ago
√2
Shanethegamer
1,056
20 days ago
φ
Shanethegamer
1,056
20 days ago
τ
Shanethegamer
1,056
20 days ago
π
Shanethegamer
1,056
20 days ago
λ
Shanethegamer
1,056
20 days ago
γ
Shanethegamer
1,056
20 days ago
Van Eck Sequence
Shanethegamer
2,608
20 days ago
Vampire Numbers
Shanethegamer
1,124
20 days ago
Tongue-twisters
Shanethegamer
576
20 days ago
Smith Numbers
Shanethegamer
1,877
20 days ago
Sierpiński Triangle
Shanethegamer
607
20 days ago
Rule 110
Shanethegamer
15,905
20 days ago
Rijndael S-box
Shanethegamer
821
20 days ago
Recamán
Shanethegamer
950
20 days ago
Polyominoes
Shanethegamer
3,617
20 days ago
Pernicious Numbers (Long)
Shanethegamer
20,715
20 days ago
Pernicious Numbers
Shanethegamer
86
20 days ago
Pascal’s Triangle
Shanethegamer
822
20 days ago
Partition Numbers
Shanethegamer
700
20 days ago
Odious Numbers (Long)
Shanethegamer
1,998
20 days ago
Odious Numbers
Shanethegamer
126
20 days ago
Number Spiral
Shanethegamer
353
20 days ago
Niven Numbers
Shanethegamer
92
20 days ago
N Queens
Shanethegamer
1,299
20 days ago
Lucky Numbers
Shanethegamer
4,873
20 days ago
Look and Say
Shanethegamer
1,332
20 days ago
ln 2
Shanethegamer
1,056
20 days ago
Leyland Numbers
Shanethegamer
939
20 days ago
Kolakoski Sequence
Shanethegamer
2,053
20 days ago
Kolakoski Constant
Shanethegamer
1,056
20 days ago
Kaprekar Numbers
Shanethegamer
493
20 days ago
Inventory Sequence
Shanethegamer
2,676
20 days ago
Gijswijt’s Sequence
Shanethegamer
2,053
20 days ago
Foo Fizz Buzz Bar
Shanethegamer
5,772
20 days ago
Fizz Buzz
Shanethegamer
466
20 days ago
Farey Sequence
Shanethegamer
4,407
20 days ago
Factorial Factorisation
Shanethegamer
915
20 days ago
Evil Numbers (Long)
Shanethegamer
2,003
20 days ago
Evil Numbers
Shanethegamer
123
20 days ago
Emirp Numbers (Long)
Shanethegamer
1,209
20 days ago
Emirp Numbers
Shanethegamer
189
20 days ago
Diamonds
Shanethegamer
1,156
20 days ago
Cubes
Shanethegamer
4,154
20 days ago