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
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lisp
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
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lisp
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
Catalan’s Constant
NicknamedTwice
1,007
14 hours ago
Catalan’s Constant
saito-ta
💎
66
23 hours ago
Billiards
KatieLG
🥈
13,409
2 days ago
Kaprekar Numbers
primo-ppcg
🥇
62
5 days ago
𝑒
emgordon154
27
7 days ago
φ
emgordon154
🥇
31
7 days ago
ln 2
emgordon154
🥇
29
7 days ago
√2
emgordon154
🥇
27
7 days ago
Billiards
saito-ta
💎
106
9 days ago
Fibonacci
madeforlosers
51
11 days ago
Quine
lifthrasiir
32
11 days ago
Collatz
madeforlosers
87
13 days ago
Number Spiral
emgordon154
436
17 days ago
Quine
Shorter-Than-Short
34
17 days ago
Quine
madex
34
24 days ago
Odious Numbers (Long)
DialFrost
37
27 days ago
Kaprekar Numbers
DialFrost
🥉
66
27 days ago
Leap Years
griffinschreiber
37
5 Nov 2024
Odious Numbers (Long)
griffinschreiber
42
5 Nov 2024
Odious Numbers
griffinschreiber
40
5 Nov 2024
Evil Numbers (Long)
griffinschreiber
42
5 Nov 2024
Evil Numbers
griffinschreiber
40
5 Nov 2024
Prime Numbers
griffinschreiber
42
4 Nov 2024
Kaprekar Numbers
nwellnhof
68
4 Nov 2024
Prime Numbers
gusruben
51
3 Nov 2024
brainfuck
griffinschreiber
166
2 Nov 2024
Kaprekar Numbers
ovs-code
🥇
62
2 Nov 2024
Niven Numbers (Long)
griffinschreiber
48
2 Nov 2024
Niven Numbers
griffinschreiber
46
2 Nov 2024
Fizz Buzz
griffinschreiber
79
2 Nov 2024
Fibonacci
griffinschreiber
44
2 Nov 2024
Kaprekar Numbers
MeWhenI
444
2 Nov 2024
Kaprekar Numbers
dokutan
444
1 Nov 2024
Kaprekar Numbers
Shanethegamer
444
1 Nov 2024
Kaprekar Numbers
KatieLG
444
1 Nov 2024
Kaprekar Numbers
HumanoidCPU
444
1 Nov 2024
Christmas Trees
Shanethegamer
59
29 Oct 2024
Ascending Primes
nephila-nacrea
308
26 Oct 2024
τ
ndren
29
25 Oct 2024
π
ndren
27
25 Oct 2024
𝑒
BREMAUCY
28
25 Oct 2024
Gijswijt’s Sequence
Shanethegamer
2,004
23 Oct 2024
Christmas Trees
thekernal
141
23 Oct 2024
Emirp Numbers (Long)
Shanethegamer
1,160
21 Oct 2024
Foo Fizz Buzz Bar
charliegaming
68
21 Oct 2024
Fizz Buzz
charliegaming
44
21 Oct 2024
Foo Fizz Buzz Bar
dokutan
101
19 Oct 2024
N Queens
dokutan
🥉
1,098
19 Oct 2024
Niven Numbers (Long)
dokutan
75
18 Oct 2024
Prime Numbers (Long)
sean-niemann
40
18 Oct 2024
Fibonacci
emgordon154
58
18 Oct 2024
Farey Sequence
nwellnhof
52
16 Oct 2024
τ
emgordon154
29
16 Oct 2024
π
emgordon154
27
16 Oct 2024
12 Days of Christmas
Shanethegamer
533
16 Oct 2024
Recamán
dokutan
747
15 Oct 2024
Gijswijt’s Sequence
dokutan
155
15 Oct 2024
Pernicious Numbers
dokutan
38
14 Oct 2024
Quine
CaedenHarper
🥇
21
13 Oct 2024
99 Bottles of Beer
Alfiecxn
348
13 Oct 2024
τ
CaedenHarper
29
13 Oct 2024
π
CaedenHarper
27
13 Oct 2024
Pernicious Numbers (Long)
dokutan
127
11 Oct 2024
Odious Numbers (Long)
dokutan
86
11 Oct 2024
Evil Numbers (Long)
dokutan
88
11 Oct 2024
Collatz
dokutan
74
11 Oct 2024
Christmas Trees
dokutan
267
11 Oct 2024
Arithmetic Numbers
dokutan
88
11 Oct 2024
Abundant Numbers (Long)
dokutan
73
11 Oct 2024
Abundant Numbers
dokutan
73
11 Oct 2024
Tongue-twisters
dokutan
418
11 Oct 2024
Fibonacci
dokutan
49
11 Oct 2024
Fizz Buzz
dokutan
48
11 Oct 2024
Rijndael S-box
dokutan
748
11 Oct 2024
Polyominoes
nwellnhof
🥉
127
10 Oct 2024