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
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
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
Collatz
HumanoidCPU
6,239
a day ago
Collatz
arcpolaris
91
a day ago
Collatz
dokutan
115
a day ago
Collatz
0dyse
194
2 days ago
Collatz
stefangimmillaro
🥈
79
5 days ago
Collatz
KatieLG
3,231
5 days ago
Collatz
emgordon154
🥈
79
5 days ago
Collatz
DialFrost
152
5 days ago
Collatz
Shanethegamer
80
6 days ago
Collatz
edsrzf
89
7 days ago
Collatz
edsrzf
78
7 days ago
Collatz
duckyluuk
80
7 days ago
Collatz
voytxt
67
7 days ago
Collatz
MeWhenI
62
8 days ago
Collatz
DialFrost
🥈
79
8 days ago
Collatz
glassala
122
8 days ago
Collatz
glassala
108
8 days ago
Collatz
GrayJoKing
60
8 days ago
Collatz
lukegustafson
🥈
59
8 days ago
Collatz
dokutan
68
8 days ago
Collatz
dokutan
87
8 days ago
Collatz
pardouin
💎
77
8 days ago
Collatz
JesseNoEyes
108
9 days ago
Collatz
MeWhenI
82
9 days ago
Collatz
DialFrost
🥈
86
9 days ago
Collatz
HumanoidCPU
104
9 days ago
Collatz
unfinishedprogram
103
9 days ago
Collatz
ovs-code
80
9 days ago
Collatz
sean-niemann
🥈
79
9 days ago
Collatz
JMMMMC
110
10 days ago
Collatz
lhulinsky
90
11 days ago
Collatz
junten1
77
13 days ago
Collatz
Europe2048
91
13 days ago
Collatz
yashima
141
13 days ago
Collatz
dan422442
115
14 days ago
Collatz
HunterC14
114
14 days ago
Collatz
2bular
🥈
32
15 days ago
Collatz
123mjb
93
16 days ago
Collatz
avila-gabriel
116
16 days ago
Collatz
GolfingSuccess
60
16 days ago
Collatz
dokutan
106
18 days ago
Collatz
sean-niemann
🥈
59
19 days ago
Collatz
rucin93
🥈
59
19 days ago
Collatz
sean-niemann
94
20 days ago
Collatz
MunirKP
69
21 days ago
Collatz
dokutan
74
21 days ago
Collatz
sheeperino
106
21 days ago
Collatz
NicknamedTwice
67
21 days ago
Collatz
MaxCastella
84
22 days ago
Collatz
cdesodt
108
23 days ago
Collatz
cdesodt
95
23 days ago
Collatz
cdesodt
61
23 days ago
Collatz
cdesodt
100
23 days ago
Collatz
cdesodt
78
23 days ago
Collatz
cdesodt
74
23 days ago
Collatz
kg583
🥉
94
23 days ago
Collatz
dieggsy
112
23 days ago
Collatz
Emutis
77
23 days ago
Collatz
lgrandco
82
24 days ago
Collatz
lgrandco
70
24 days ago
Collatz
lgrandco
56
24 days ago
Collatz
sean-niemann
76
24 days ago
Collatz
dieggsy
97
24 days ago
Collatz
Clay-Goodling
75
25 days ago
Collatz
AlbatrossBay
73
25 days ago
Collatz
RedzGoose
75
25 days ago
Collatz
RedzGoose
75
25 days ago
Collatz
pardouin
53
26 days ago
Collatz
masinag
71
26 days ago
Collatz
kyleyarwood
94
26 days ago
Collatz
dokutan
1,838
26 days ago
Collatz
mattyhempstead
73
27 days ago
Collatz
yb1yb1
67
27 days ago
Collatz
larcherMTT
72
27 days ago
Collatz
FlyingPenguin223
🥉
70
4 Oct 2024