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
brainfuck
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
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 v2
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
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
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
brainfuck
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
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 v2
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
Collatz
fischfood
78
23 days ago
Collatz
ybrodala
81
24 days ago
Collatz
Kokusui
73
22 Jul 2024
Collatz
dokutan
76
15 Jun 2024
Collatz
HumanoidCPU
3,231
3 May 2024
Collatz
mrmena
90
19 Mar 2024
Collatz
kurkale6ka
3,231
3 Jan 2024
Collatz
RossBambrey
88
21 Nov 2023
Collatz
DialFrost
67
19 Nov 2023
Collatz
madeforlosers
75
27 Oct 2023
Collatz
liviucerchez
96
20 Oct 2023
Collatz
snoozingnewt
90
11 Sep 2023
Collatz
msbranicky
99
8 Sep 2023
Collatz
AlexanderFair
96
11 Aug 2023
Collatz
jbirchevans
84
2 Aug 2023
Collatz
aminboroumand
81
13 Jul 2023
Collatz
hossain-iqbal
82
13 Jul 2023
Collatz
piripasa
97
12 Jul 2023
Collatz
hossammohammed72
80
12 Jul 2023
Collatz
infostreams
78
12 Jul 2023
Collatz
ArtemBrovko
73
12 Jul 2023
Collatz
ahmedsliman
224
12 Jul 2023
Collatz
MeWhenI
69
28 May 2023
Collatz
janbehrens
67
17 May 2023
Collatz
Shanethegamer
68
17 May 2023
Collatz
arobson13
67
11 Apr 2023
Collatz
jzawadzki
77
25 Feb 2023
Collatz
StronkCheese
99
18 Feb 2023
Collatz
shaunjc
83
17 Feb 2023
Collatz
zelenovas
71
8 Feb 2023
Collatz
Betuaredead
69
5 Jan 2023
Collatz
retrohun
3,229
27 Dec 2022
Collatz
Bodo171
132
6 Dec 2022
Collatz
satutalo
74
22 Nov 2022
Collatz
jessegyger
93
5 Oct 2022
Collatz
stefangimmillaro
68
2 Oct 2022
Collatz
josh-h-90
72
13 Sep 2022
Collatz
tkr-sh
73
8 Sep 2022
Collatz
KrausRaus
70
7 Sep 2022
Collatz
JustinHodge
70
18 Aug 2022
Collatz
pschmid0
67
5 Aug 2022
Collatz
sisyphus-ppcg
61
14 Jul 2022
Collatz
KatieLG-Transpiler
4,230
24 Jun 2022
Collatz
Natanaelel
80
17 Jun 2022
Collatz
merithes
104
8 Jun 2022
Collatz
primo-ppcg
61
6 May 2022
Collatz
Lydxn
💎
59
6 May 2022
Collatz
GrayJoKing
🥈
60
6 May 2022
Collatz
didion0
80
5 May 2022
Collatz
emplv
🥈
60
5 May 2022
Collatz
sean-niemann
67
5 May 2022
Collatz
KatieLG
4,230
4 May 2022
Collatz
JRaspass
3,231
4 May 2022