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
brainfuck
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
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
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku v2
Ten-pin Bowling
Time Distance
Tongue-twisters
United States
Vampire Numbers
Van Eck Sequence
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
All Languages
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Clojure
COBOL
Coconut
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
Julia
K
Lisp
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Clojure
COBOL
Coconut
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
Julia
K
Lisp
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
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
brainfuck
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
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
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku v2
Ten-pin Bowling
Time Distance
Tongue-twisters
United States
Vampire Numbers
Van Eck Sequence
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Hole
Golfer
Chars
Submitted
Factorial Factorisation
BREMAUCY
🥇
905
5 days ago
Factorial Factorisation
KatieLG
🥉
957
7 days ago
Factorial Factorisation
MeWhenI
🥇
905
7 days ago
Fizz Buzz
robertoman37
347
10 days ago
Fibonacci
Herbert00709
205
14 days ago
𝑒
dokutan
713
18 days ago
√2
dokutan
🥈
713
18 days ago
φ
dokutan
🥈
713
18 days ago
τ
dokutan
713
18 days ago
π
dokutan
713
18 days ago
λ
dokutan
🥉
713
18 days ago
γ
dokutan
💎
713
18 days ago
Van Eck Sequence
dokutan
1,246
18 days ago
Vampire Numbers
dokutan
🥈
737
18 days ago
Smith Numbers
dokutan
🥉
996
18 days ago
Recamán
dokutan
678
18 days ago
Prime Numbers (Long)
dokutan
2,404
18 days ago
Pernicious Numbers (Long)
dokutan
7,433
18 days ago
Pascal’s Triangle
dokutan
635
18 days ago
Odious Numbers (Long)
dokutan
1,036
18 days ago
Niven Numbers (Long)
dokutan
2,912
18 days ago
Lucky Numbers
dokutan
2,019
18 days ago
Look and Say
dokutan
808
18 days ago
ln 2
dokutan
🥉
713
18 days ago
Leyland Numbers
dokutan
🥉
674
18 days ago
Leap Years
dokutan
620
18 days ago
Kolakoski Sequence
dokutan
1,055
18 days ago
Kolakoski Constant
dokutan
🥈
713
18 days ago
Inventory Sequence
dokutan
1,268
18 days ago
Happy Numbers (Long)
dokutan
558
18 days ago
Gijswijt’s Sequence
dokutan
🥉
1,055
18 days ago
Farey Sequence
dokutan
1,860
18 days ago
Evil Numbers (Long)
dokutan
1,038
18 days ago
Emirp Numbers (Long)
dokutan
767
18 days ago
Divisors
dokutan
771
18 days ago
Collatz
dokutan
1,472
18 days ago
Catalan’s Constant
dokutan
🥈
713
18 days ago
Catalan Numbers
dokutan
🥈
1,351
18 days ago
Ascending Primes
dokutan
🥈
545
18 days ago
Arithmetic Numbers
dokutan
13,234
18 days ago
Abundant Numbers (Long)
dokutan
700
18 days ago
Diamonds
dokutan
750
18 days ago
24 Game
dokutan
🥈
4,621
18 days ago
𝑒
KatieLG
1,098
21 days ago
√2
KatieLG
1,098
21 days ago
γ
KatieLG
1,098
21 days ago
Rijndael S-box
KatieLG
836
21 days ago
Niven Numbers (Long)
KatieLG
8,073
21 days ago
Lucky Numbers
KatieLG
5,239
21 days ago
ln 2
KatieLG
1,098
21 days ago
Kolakoski Constant
KatieLG
1,098
21 days ago
Farey Sequence
KatieLG
4,719
21 days ago
Emirp Numbers (Long)
KatieLG
1,278
21 days ago
Catalan’s Constant
KatieLG
1,098
21 days ago
Catalan Numbers
KatieLG
3,102
21 days ago
brainfuck
KatieLG
1,892
21 days ago
Ascending Primes
KatieLG
580
21 days ago
Arithmetic Numbers
KatieLG
40,734
21 days ago
99 Bottles of Beer
KatieLG
12,936
21 days ago
24 Game
KatieLG
13,391
21 days ago