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
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
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
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
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Rockstar 2
Ruby
Rust
Scheme
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++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Rockstar 2
Ruby
Rust
Scheme
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
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
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
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Hole
Golfer
Chars
Submitted
Foo Fizz Buzz Bar
aloskutov
95
8 mins ago
Fizz Buzz
aloskutov
62
9 mins ago
Reverse Polish Notation
targrik
177
18 hours ago
Morse Encoder
targrik
161
19 hours ago
Morse Decoder
targrik
187
19 hours ago
Fizz Buzz
visor
🥇
56
20 hours ago
Game of Life
targrik
178
21 hours ago
Transpose Sentence
targrik
114
23 hours ago
Proximity Grid
targrik
186
26 hours ago
Maze
targrik
253
26 hours ago
12 Days of Christmas
ocefra
481
27 hours ago
Mahjong
targrik
🥈
317
42 hours ago
𝑒
Fishyfii
1,010
47 hours ago
Reversi
targrik
314
2 days ago
ROT13
ovs-code
42
2 days ago
ROT13
rucin93
41
2 days ago
ROT13
sisyphus-ppcg
🥇
40
2 days ago
ROT13
error256
41
2 days ago
Emojify
targrik
196
2 days ago
Forsyth–Edwards Notation
targrik
🥉
129
2 days ago
ROT13
stefangimmillaro
🥇
40
2 days ago
𝑒
targrik
87
3 days ago
τ
targrik
111
3 days ago
Fibonacci
whenaver
48
3 days ago
ROT13
emplv
41
3 days ago
ROT13
edsrzf
41
3 days ago
ROT13
TomvdPeet
41
3 days ago
ROT13
targrik
41
3 days ago
π
targrik
105
3 days ago
Rijndael S-box
targrik
212
4 days ago
Lucky Numbers
targrik
114
4 days ago
ISBN
targrik
99
4 days ago
Hexdump
targrik
188
4 days ago
Spelling Numbers
targrik
430
4 days ago
Ordinal Numbers
targrik
79
4 days ago
Happy Numbers (Long)
targrik
87
4 days ago
Happy Numbers
targrik
86
4 days ago
Arrows
targrik
129
4 days ago
π
AidanWalter
1,012
4 days ago
Sudoku
sean-niemann
💎
412
4 days ago
π
whenaver
108
4 days ago
ROT13
whenaver
44
4 days ago
24 Game
targrik
🥉
575
4 days ago
DFA Simulator
targrik
🥉
185
4 days ago
Emojify
edsrzf
🥈
91
6 days ago
ROT13
GolfingSuccess
42
6 days ago
Poker
targrik
🥈
390
6 days ago
ROT13
DialFrost
41
6 days ago
ROT13
sean-niemann
🥇
40
6 days ago
Kolakoski Sequence
targrik
88
7 days ago
Sudoku (Fill-in)
targrik
583
7 days ago
Sudoku
targrik
578
7 days ago
Van Eck Sequence
targrik
79
8 days ago
Recamán
targrik
58
8 days ago
Factorial Factorisation
targrik
161
8 days ago
Evil Numbers
targrik
51
10 days ago
Number Spiral
targrik
🥉
120
10 days ago
Fizz Buzz
k9twdev
69
10 days ago
United States
targrik
742
10 days ago
N Queens
targrik
283
11 days ago
Seven Segment
sean-niemann
125
11 days ago
Happy Numbers (Long)
DialFrost
75
11 days ago
Polyominoes
targrik
3,567
12 days ago
Vampire Numbers
targrik
1,074
12 days ago
Smith Numbers
targrik
1,827
12 days ago
Gijswijt’s Sequence
targrik
2,003
12 days ago
Catalan Numbers
targrik
2,875
12 days ago
Ascending Primes
targrik
515
12 days ago
Sierpiński Triangle
targrik
395
12 days ago
Diamonds
targrik
1,106
12 days ago
Christmas Trees
targrik
548
12 days ago
ASCII Table
targrik
121
12 days ago
Kaprekar Numbers
ocefra
393
12 days ago
Pangram Grep
targrik
111
13 days ago
Arithmetic Numbers
nnchutchikov
79
13 days ago