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
Mandelbrot
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
Partition Numbers
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
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars GPT
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Topological Sort
Trinomial Triangle
Turtle
Tutorial
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
Gleam
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
05AB1E
ALGOL 68
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
Fennel
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Vala
Vyxal
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
Gleam
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
Experimental Language
05AB1E
ALGOL 68
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
Fennel
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Vala
Vyxal
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
Mandelbrot
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
Partition Numbers
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
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars GPT
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Topological Sort
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Chars
Submitted
Happy Numbers
emplv
63
10 hours ago
Happy Numbers
targrik
67
12 hours ago
Happy Numbers
csharpython
74
14 hours ago
Happy Numbers
albanian-laundromat
108
14 hours ago
Happy Numbers
albanian-laundromat
160
40 hours ago
Happy Numbers
acollett89
106
2 days ago
Happy Numbers
dbut2
121
2 days ago
Happy Numbers
CaedenHarper
56
2 days ago
Happy Numbers
CaedenHarper
27
2 days ago
Happy Numbers
stefangimmillaro
116
3 days ago
Happy Numbers
SanderRuud
58
4 days ago
Happy Numbers
frankgraziano
🥇
147
5 days ago
Happy Numbers
clayboll99
115
6 days ago
Happy Numbers
lukegustafson
🥇
48
6 days ago
Happy Numbers
Flekay
60
6 days ago
Happy Numbers
RaBa21
60
7 days ago
Happy Numbers
RaBa21
190
7 days ago
Happy Numbers
codewrite
98
7 days ago
Happy Numbers
cdesodt
82
8 days ago
Happy Numbers
Protothor
70
8 days ago
Happy Numbers
SirBogman
34
8 days ago
Happy Numbers
ovs-code
22
9 days ago
Happy Numbers
GrayJoKing
22
9 days ago
Happy Numbers
rollsroyce0
103
9 days ago
Happy Numbers
matejmatik123
167
10 days ago
Happy Numbers
dirckvdende
59
10 days ago
Happy Numbers
duckyluuk
56
11 days ago
Happy Numbers
KasperKivimaeki
59
12 days ago
Happy Numbers
Shanethegamer
133
14 days ago
Happy Numbers
Shanethegamer
116
15 days ago
Happy Numbers
targrik
163
16 days ago
Happy Numbers
dokutan
78
16 days ago
Happy Numbers
albanian-laundromat
58
17 days ago
Happy Numbers
codewrite
89
17 days ago
Happy Numbers
4atj
62
17 days ago
Happy Numbers
olleicua
340
18 days ago
Happy Numbers
dokutan
66
19 days ago
Happy Numbers
dokutan
92
19 days ago
Happy Numbers
albanian-laundromat
147
19 days ago
Happy Numbers
123mjb
111
21 days ago
Happy Numbers
albanian-laundromat
69
22 days ago
Happy Numbers
edsrzf
67
24 days ago
Happy Numbers
jipsong
79
26 days ago
Happy Numbers
gigaprofisi
113
26 days ago
Happy Numbers
folicore
156
18 Jun 2025
Happy Numbers
lukegustafson
🥈
52
17 Jun 2025
Happy Numbers
me42th
182
16 Jun 2025
Happy Numbers
xvogt
24
15 Jun 2025
Happy Numbers
Jigglypuffed
28
15 Jun 2025
Happy Numbers
sean-niemann
🥉
67
13 Jun 2025
Happy Numbers
ffelixm
60
12 Jun 2025
Happy Numbers
ffelixm
71
12 Jun 2025
Happy Numbers
mossiegoat
74
12 Jun 2025
Happy Numbers
perlebach
91
10 Jun 2025
Happy Numbers
strogor
132
9 Jun 2025
Happy Numbers
AlephSquirrel
24
9 Jun 2025
Happy Numbers
fuzzylojik-golf
56
9 Jun 2025
Happy Numbers
0xjac
136
7 Jun 2025
Happy Numbers
XenThe
79
7 Jun 2025
Happy Numbers
albanian-laundromat
115
7 Jun 2025
Happy Numbers
sean-niemann
87
6 Jun 2025
Happy Numbers
pogwolfe
134
4 Jun 2025
Happy Numbers
jaxmattfair
133
4 Jun 2025
Happy Numbers
sean-niemann
🥇
35
3 Jun 2025
Happy Numbers
IISResetMe
87
1 Jun 2025
Happy Numbers
Lv0Sys
74
31 May 2025
Happy Numbers
Natanaelel
74
31 May 2025
Happy Numbers
Shanethegamer
109
30 May 2025
Happy Numbers
josh-h-90
112
30 May 2025
Happy Numbers
fuzzylojik-golf
61
30 May 2025
Happy Numbers
heanyang1
174
29 May 2025
Happy Numbers
lyphyser
14
28 May 2025
Happy Numbers
Shanethegamer
86
26 May 2025
Happy Numbers
Shanethegamer
86
26 May 2025
Happy Numbers
emgordon154
101
26 May 2025