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
Pernicious Numbers
emgordon154
31
3 hours ago
Pernicious Numbers
FlyingPenguin223
27
23 Oct 2024
Pernicious Numbers
Mabeloid
106
3 Oct 2024
Pernicious Numbers
anter69
35
2 Sep 2024
Pernicious Numbers
pardouin
27
18 Aug 2024
Pernicious Numbers
error256
31
29 Jul 2024
Pernicious Numbers
HumanoidCPU
106
10 May 2024
Pernicious Numbers
dokutan
29
30 Apr 2024
Pernicious Numbers
Yewzir
🥇
26
6 Feb 2024
Pernicious Numbers
rucin93
45
20 Jan 2024
Pernicious Numbers
ovs-code
28
22 Oct 2023
Pernicious Numbers
snoozingnewt
65
7 Oct 2023
Pernicious Numbers
inventshah
🥇
26
27 Sep 2023
Pernicious Numbers
msbranicky
61
5 Sep 2023
Pernicious Numbers
Shanethegamer
🥇
26
6 Feb 2023
Pernicious Numbers
DialFrost
🥇
26
18 Jan 2023
Pernicious Numbers
sean-niemann
🥇
26
4 Jan 2023
Pernicious Numbers
retrohun
106
28 Dec 2022
Pernicious Numbers
stefangimmillaro
🥇
26
17 Dec 2022
Pernicious Numbers
Steffan153
🥇
26
16 Dec 2022
Pernicious Numbers
janbehrens
44
27 Nov 2022
Pernicious Numbers
MeWhenI
27
5 Nov 2022
Pernicious Numbers
yzhs
44
20 Jul 2022
Pernicious Numbers
KatieLG-Transpiler
140
3 Jul 2022
Pernicious Numbers
Natanaelel
32
25 Jun 2022
Pernicious Numbers
lynn
🥇
26
1 Jun 2022
Pernicious Numbers
SirBogman
27
31 May 2022
Pernicious Numbers
HallMatthew314
74
21 Dec 2021
Pernicious Numbers
mokymok
140
11 Nov 2021
Pernicious Numbers
Lydxn
🥇
26
11 Jun 2021
Pernicious Numbers
arcage
86
10 Jun 2021
Pernicious Numbers
KatieLG
48
3 May 2021
Pernicious Numbers
primo-ppcg
🥇
26
24 Mar 2021
Pernicious Numbers
JayXon
🥇
26
24 Mar 2021
Pernicious Numbers
prplz
🥇
26
23 Mar 2021
Pernicious Numbers
GrayJoKing
🥇
26
23 Mar 2021
Pernicious Numbers
sisyphus-ppcg
🥇
26
23 Mar 2021
Pernicious Numbers
JRaspass
106
23 Mar 2021