Recent Solutions
Prev Hole
Play Hole
Next Hole
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
Rule 110
tatzyr
193
3 days ago
Rule 110
dokutan
1,965
6 Oct 2024
Rule 110
Mabeloid
15,857
22 Sep 2024
Rule 110
emgordon154
112
20 Jul 2024
Rule 110
HumanoidCPU
15,857
7 May 2024
Rule 110
olleicua
87
25 Feb 2024
Rule 110
DialFrost
🥇
59
28 Nov 2023
Rule 110
inventshah
🥇
59
20 Oct 2023
Rule 110
aaronze
102
20 Sep 2023
Rule 110
msbranicky
199
12 Sep 2023
Rule 110
Natanaelel
65
29 Jul 2023
Rule 110
nwellnhof
🥇
59
26 Jul 2023
Rule 110
MeWhenI
74
26 May 2023
Rule 110
scpchicken
95
22 Apr 2023
Rule 110
GrayJoKing
🥇
59
3 Apr 2023
Rule 110
ovs-code
🥇
59
2 Apr 2023
Rule 110
neel11235813
115
17 Mar 2023
Rule 110
Shanethegamer
96
27 Feb 2023
Rule 110
Haksell
84
22 Feb 2023
Rule 110
stefangimmillaro
🥇
59
21 Feb 2023
Rule 110
sean-niemann
🥇
59
21 Feb 2023
Rule 110
Steffan153
🥇
59
21 Feb 2023
Rule 110
akshatj27
102
12 Dec 2022
Rule 110
SirBogman
66
28 Nov 2022
Rule 110
jared-hughes
72
10 Sep 2022
Rule 110
KatieLG-Transpiler
15,857
24 Jun 2022
Rule 110
Irratix
74
21 Apr 2022
Rule 110
KatieLG
109
11 Apr 2022
Rule 110
orthoplex
60
31 Mar 2022
Rule 110
anter69
94
5 Mar 2022
Rule 110
NewDefectus
71
18 Nov 2021
Rule 110
janlelis
83
11 Nov 2021
Rule 110
sisyphus-ppcg
🥇
59
9 Nov 2021
Rule 110
xiBread
95
24 Oct 2021
Rule 110
JayXon
🥇
59
18 Jun 2021
Rule 110
Lydxn
🥇
59
22 Mar 2021
Rule 110
boxjelly
118
12 Feb 2021
Rule 110
hiddicop
85
30 Jan 2021
Rule 110
razetime
95
25 Jan 2021
Rule 110
Waffle3z
109
22 Jan 2021
Rule 110
jaredcrystal
227
14 Dec 2020
Rule 110
prplz
90
19 Oct 2020
Rule 110
primo-ppcg
70
5 Oct 2020
Rule 110
proton
95
10 Jun 2020
Rule 110
JRaspass
15,857
17 Jan 2020
Rule 110
n1LS
133
27 Sep 2019
Rule 110
retrohun
15,857
21 Dec 2018
Rule 110
yokasuretsu
123
11 Jul 2018