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
Chars
Submitted
Pernicious Numbers
FlyingPenguin223
70
6 days ago
Pernicious Numbers
JackieAlacrity2373
514
21 days ago
Pernicious Numbers
snyderek
84
13 Oct 2024
Pernicious Numbers
Mabeloid
178
3 Oct 2024
Pernicious Numbers
pardouin
🥇
67
17 Aug 2024
Pernicious Numbers
ibrahimhanifceker
106
7 Aug 2024
Pernicious Numbers
ridilculous
84
2 Aug 2024
Pernicious Numbers
bac0id
93
6 Jul 2024
Pernicious Numbers
Herbert00709
78
7 Jun 2024
Pernicious Numbers
HumanoidCPU
219
12 May 2024
Pernicious Numbers
dokutan
70
26 Mar 2024
Pernicious Numbers
KatieLG
190
23 Mar 2024
Pernicious Numbers
oceko
93
19 Feb 2024
Pernicious Numbers
dpethes
79
15 Jan 2024
Pernicious Numbers
roupiq
78
14 Nov 2023
Pernicious Numbers
Betuaredead
🥇
67
11 Nov 2023
Pernicious Numbers
tailorspy
84
1 Nov 2023
Pernicious Numbers
Yewzir
🥇
67
11 Oct 2023
Pernicious Numbers
msbranicky
90
15 Sep 2023
Pernicious Numbers
ovs-code
🥇
67
17 Jul 2023
Pernicious Numbers
namcartoon06
97
15 Jul 2023
Pernicious Numbers
xsot
🥇
67
14 Jul 2023
Pernicious Numbers
geooff
172
3 Jul 2023
Pernicious Numbers
rucin93
🥇
67
20 Jun 2023
Pernicious Numbers
jorbDehmel
147
10 Jun 2023
Pernicious Numbers
sisyphus-ppcg
🥇
67
23 Mar 2023
Pernicious Numbers
CatsAreFluffy
98
6 Mar 2023
Pernicious Numbers
Alex-x90
🥇
67
24 Feb 2023
Pernicious Numbers
trist224
100
21 Feb 2023
Pernicious Numbers
3llimi
987
13 Feb 2023
Pernicious Numbers
Shanethegamer
🥇
67
6 Feb 2023
Pernicious Numbers
aksyristos
113
23 Jan 2023
Pernicious Numbers
DialFrost
🥇
67
12 Jan 2023
Pernicious Numbers
annaproxy
71
4 Jan 2023
Pernicious Numbers
retrohun
111
28 Dec 2022
Pernicious Numbers
astdefu
90
8 Dec 2022
Pernicious Numbers
Steffan153
🥇
67
27 Nov 2022
Pernicious Numbers
janbehrens
93
20 Nov 2022
Pernicious Numbers
MeWhenI
🥇
67
5 Nov 2022
Pernicious Numbers
sean-niemann
🥇
67
4 Nov 2022
Pernicious Numbers
cmayer777
99
14 Oct 2022
Pernicious Numbers
m-tkach
68
15 Aug 2022
Pernicious Numbers
jared-hughes
68
20 Jul 2022
Pernicious Numbers
Natanaelel
72
25 Jun 2022
Pernicious Numbers
KatieLG-Transpiler
213
24 Jun 2022
Pernicious Numbers
inventshah
🥇
67
15 Jun 2022
Pernicious Numbers
SpareManiKatti
212
19 Apr 2022
Pernicious Numbers
Irratix
🥇
67
22 Mar 2022
Pernicious Numbers
GrayJoKing
🥇
67
18 Feb 2022
Pernicious Numbers
primo-ppcg
🥇
67
18 Jan 2022
Pernicious Numbers
JGDoerrer
101
11 Jan 2022
Pernicious Numbers
Re-Adventures
102
3 Jan 2022
Pernicious Numbers
JayXon
🥇
67
1 Jan 2022
Pernicious Numbers
prplz
🥇
67
1 Jan 2022
Pernicious Numbers
Lydxn
🥇
67
1 Jan 2022