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
N Queens
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
N Queens
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
Bytes
Submitted
Leap Years
HumanoidCPU
735
an hour ago
ASCII Table
HumanoidCPU
279
3 hours ago
Fibonacci
HumanoidCPU
139
7 hours ago
Recamán
aydamak
57
9 hours ago
Ordinal Numbers
aydamak
118
9 hours ago
Pernicious Numbers
aydamak
63
10 hours ago
Abundant Numbers (Long)
aydamak
47
17 hours ago
Abundant Numbers
aydamak
46
17 hours ago
Abundant Numbers (Long)
HumanoidCPU
969
a day ago
Abundant Numbers
HumanoidCPU
168
a day ago
Mahjong
ovs-code
💎
174
a day ago
Pangram Grep
gabe-gallegos
52
2 days ago
Emirp Numbers (Long)
aydamak
92
2 days ago
Odious Numbers (Long)
aydamak
42
2 days ago
Niven Numbers (Long)
aydamak
40
2 days ago
Evil Numbers (Long)
aydamak
42
2 days ago
Prime Numbers (Long)
aydamak
41
2 days ago
Farey Sequence
aydamak
93
2 days ago
Pascal’s Triangle
aydamak
62
2 days ago
Christmas Trees
aydamak
68
2 days ago
Emirp Numbers
aydamak
91
2 days ago
Prime Numbers
aydamak
39
2 days ago
Odious Numbers
aydamak
40
2 days ago
Evil Numbers
aydamak
40
2 days ago
Medal Tally
olleicua
143
2 days ago
Niven Numbers
aydamak
38
2 days ago
Fractions
olleicua
🥇
17
2 days ago
brainfuck
ovs-code
107
2 days ago
Pangram Grep
HumanoidCPU
63
3 days ago
Pernicious Numbers
BREMAUCY
30
3 days ago
Divisors
aydamak
46
3 days ago
Leap Years
aydamak
45
3 days ago
Foo Fizz Buzz Bar
christensendaniel
195
3 days ago
Van Eck Sequence
xsot
44
3 days ago
Evil Numbers
HumanoidCPU
75
3 days ago
Look and Say
HumanoidCPU
1,284
4 days ago
Niven Numbers
error256
38
4 days ago
Niven Numbers (Long)
error256
🥇
38
4 days ago
Happy Numbers (Long)
error256
59
4 days ago
Leap Years
error256
42
4 days ago
Christmas Trees
HumanoidCPU
550
4 days ago
Morse Decoder
madex
350
4 days ago
99 Bottles of Beer
HumanoidCPU
11,890
5 days ago
Pascal’s Triangle
HumanoidCPU
774
5 days ago
Ascending Primes
HumanoidCPU
517
5 days ago
QR Decoder
stefangimmillaro
147
5 days ago
Ten-pin Bowling
olleicua
206
6 days ago
Lucky Numbers
olleicua
4,825
6 days ago
Foo Fizz Buzz Bar
HumanoidCPU
5,724
7 days ago
Fibonacci
error256
🥇
25
7 days ago
Pernicious Numbers (Long)
HumanoidCPU
20,667
8 days ago
Pernicious Numbers
HumanoidCPU
105
8 days ago
Arithmetic Numbers
HumanoidCPU
37,647
8 days ago
Happy Numbers (Long)
HumanoidCPU
557
8 days ago
Intersection
ovs-code
72
8 days ago
Niven Numbers (Long)
HumanoidCPU
7,443
9 days ago
24 Game
HumanoidCPU
12,437
9 days ago
γ
HumanoidCPU
1,008
9 days ago
Hexdump
DialFrost
161
9 days ago
Lucky Numbers
HumanoidCPU
4,825
10 days ago