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
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
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
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
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
Bytes
Submitted
Quine
lifthrasiir
37
24 hours ago
Billiards
pardouin
💎
153
2 days ago
Sierpiński Triangle
kurkale6ka
568
2 days ago
Billiards
ovs-code
🥈
155
2 days ago
Billiards
emgordon154
175
3 days ago
Billiards
sean-niemann
🥉
158
3 days ago
Billiards
KatieLG
13,428
3 days ago
Fizz Buzz
scpchicken
74
4 days ago
Emojify
emgordon154
200
5 days ago
N Queens
emgordon154
169
5 days ago
Gijswijt’s Sequence
emgordon154
99
6 days ago
Rock-paper-scissors-Spock-lizard
ovs-code
🥈
206
7 days ago
Diamonds
emgordon154
126
8 days ago
Ten-pin Bowling
emgordon154
🥉
214
8 days ago
Reversi
emgordon154
144
8 days ago
π
RaBa21
1,016
10 days ago
Maze
emgordon154
160
10 days ago
Recamán
sean-niemann
🥈
53
10 days ago
DFA Simulator
emgordon154
🥉
146
10 days ago
Emirp Numbers (Long)
rucin93
🥉
82
11 days ago
Poker
emgordon154
567
11 days ago
Sudoku
ovs-code
🥈
343
12 days ago
Sudoku (Fill-in)
ovs-code
🥈
183
12 days ago
Sudoku
JayXon
💎
319
12 days ago
Collatz
madeforlosers
75
13 days ago
Star Wars Opening Crawl
ovs-code
💎
229
13 days ago
Poker
ovs-code
🥈
266
13 days ago
Roman to Arabic
ovs-code
🥉
92
13 days ago
Number Spiral
ovs-code
🥈
95
13 days ago
Levenshtein Distance
ovs-code
133
13 days ago
Intersection
ovs-code
117
13 days ago
Rijndael S-box
emgordon154
222
14 days ago
λ
ovs-code
💎
177
14 days ago
Sierpiński Triangle
rucin93
🥈
63
14 days ago
Card Number Validation
JayXon
💎
73
14 days ago
United States
emgordon154
191
15 days ago
Zodiac Signs
emgordon154
233
15 days ago
π
GWStuart
1,016
15 days ago
Maze
Shanethegamer
💎
115
15 days ago
𝑒
emgordon154
94
15 days ago
Card Number Validation
emgordon154
83
15 days ago
Emirp Numbers (Long)
JayXon
💎
64
16 days ago
Divisors
JayXon
🥇
46
16 days ago
Fractions
emgordon154
95
16 days ago
Emirp Numbers
JayXon
💎
60
16 days ago
Emirp Numbers (Long)
ovs-code
🥈
68
16 days ago
Transpose Sentence
ovs-code
79
16 days ago
Divisors
ovs-code
🥇
46
16 days ago
Maze
ovs-code
🥉
123
16 days ago
Emirp Numbers
ovs-code
69
16 days ago
Recamán
ovs-code
60
17 days ago
Van Eck Sequence
ovs-code
51
17 days ago
Vampire Numbers
ovs-code
🥈
115
17 days ago
Niven Numbers (Long)
emgordon154
🥉
53
17 days ago
Intersection
emgordon154
137
17 days ago
Number Spiral
emgordon154
🥉
110
17 days ago
Reverse Polish Notation
ovs-code
95
18 days ago
Odious Numbers (Long)
emgordon154
45
18 days ago
Odious Numbers
emgordon154
43
18 days ago
Evil Numbers (Long)
emgordon154
45
18 days ago
Evil Numbers
emgordon154
43
18 days ago
Recamán
emgordon154
62
18 days ago
SI Units
emgordon154
💎
765
18 days ago
Day of Week
emgordon154
111
19 days ago
Arabic to Roman
emgordon154
152
19 days ago
Star Wars Opening Crawl
emgordon154
🥉
305
19 days ago
Factorial Factorisation
emgordon154
126
19 days ago
brainfuck
emgordon154
174
19 days ago
Hexdump
emgordon154
209
19 days ago
Happy Numbers
emgordon154
76
19 days ago
Leyland Numbers
emgordon154
86
19 days ago
Levenshtein Distance
emgordon154
150
19 days ago
Christmas Trees
emgordon154
83
19 days ago
Ordinal Numbers
emgordon154
77
19 days ago
Abundant Numbers
emgordon154
57
19 days ago