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
Hilbert Curve
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
Topological Sort
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
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
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
Groovy
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
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
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
Groovy
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
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
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
Hilbert Curve
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
Topological Sort
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
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Happy Numbers (Long)
snoozingnewt
125
11 hours ago
Happy Numbers (Long)
snoozingnewt
102
11 hours ago
Happy Numbers (Long)
snoozingnewt
174
11 hours ago
Happy Numbers (Long)
snoozingnewt
106
11 hours ago
Happy Numbers (Long)
snoozingnewt
205
11 hours ago
Happy Numbers (Long)
snoozingnewt
142
12 hours ago
Happy Numbers (Long)
snoozingnewt
71
12 hours ago
Happy Numbers (Long)
snoozingnewt
85
12 hours ago
Happy Numbers (Long)
snoozingnewt
120
12 hours ago
Happy Numbers (Long)
snoozingnewt
199
12 hours ago
Happy Numbers (Long)
snoozingnewt
182
12 hours ago
Happy Numbers (Long)
snoozingnewt
115
12 hours ago
Happy Numbers (Long)
snoozingnewt
130
12 hours ago
Happy Numbers (Long)
snoozingnewt
98
12 hours ago
Happy Numbers (Long)
snoozingnewt
166
12 hours ago
Happy Numbers (Long)
snoozingnewt
99
12 hours ago
Happy Numbers (Long)
snoozingnewt
97
12 hours ago
Happy Numbers (Long)
snoozingnewt
136
12 hours ago
Happy Numbers (Long)
snoozingnewt
118
12 hours ago
Happy Numbers (Long)
snoozingnewt
146
12 hours ago
Happy Numbers (Long)
snoozingnewt
129
12 hours ago
Happy Numbers (Long)
snoozingnewt
77
12 hours ago
Happy Numbers (Long)
snoozingnewt
118
12 hours ago
Happy Numbers (Long)
snoozingnewt
155
12 hours ago
Happy Numbers (Long)
snoozingnewt
160
12 hours ago
Happy Numbers (Long)
snoozingnewt
82
12 hours ago
Happy Numbers (Long)
KatieLG
🥉
849
14 hours ago
Happy Numbers (Long)
dokutan
🥇
748
16 hours ago
Happy Numbers (Long)
kumavale
119
24 hours ago
Happy Numbers (Long)
JayXon
🥉
73
30 hours ago
Happy Numbers (Long)
albanian-laundromat
80
31 hours ago
Happy Numbers (Long)
edsrzf
💎
68
33 hours ago
Happy Numbers (Long)
albanian-laundromat
213
34 hours ago
Happy Numbers (Long)
dokutan
699
38 hours ago
Happy Numbers (Long)
Yax42
115
46 hours ago
Happy Numbers (Long)
Yax42
99
46 hours ago
Happy Numbers (Long)
arjunarya1
149
2 days ago
Happy Numbers (Long)
CaedenHarper
71
2 days ago
Happy Numbers (Long)
GolfingSuccess
88
2 days ago
Happy Numbers (Long)
emgordon154
31
3 days ago
Happy Numbers (Long)
HolmDev
104
3 days ago
Happy Numbers (Long)
fuzzylojik-golf
35
4 days ago
Happy Numbers (Long)
fuzzylojik-golf
28
4 days ago
Happy Numbers (Long)
khvdm
🥉
73
4 days ago
Happy Numbers (Long)
albanian-laundromat
327
5 days ago
Happy Numbers (Long)
fuzzylojik-golf
🥇
26
6 days ago
Happy Numbers (Long)
albanian-laundromat
105
7 days ago
Happy Numbers (Long)
InigoK
79
8 days ago
Happy Numbers (Long)
kmathis22
158
10 days ago
Happy Numbers (Long)
XenThe
560
10 days ago
Happy Numbers (Long)
CaedenHarper
67
13 days ago
Happy Numbers (Long)
CaedenHarper
85
13 days ago
Happy Numbers (Long)
blaztoma
88
14 days ago
Happy Numbers (Long)
sean-niemann
🥈
69
15 days ago
Happy Numbers (Long)
DialFrost
🥈
69
15 days ago
Happy Numbers (Long)
DialFrost
150
22 days ago
Happy Numbers (Long)
Emutis
104
23 days ago
Happy Numbers (Long)
Apataras
157
24 days ago
Happy Numbers (Long)
katss2
564
25 days ago
Happy Numbers (Long)
wobblybits
99
27 days ago
Happy Numbers (Long)
kg583
🥉
101
27 days ago
Happy Numbers (Long)
HumanoidCPU
722
27 days ago
Happy Numbers (Long)
HumanoidCPU
747
27 days ago
Happy Numbers (Long)
HumanoidCPU
700
27 days ago
Happy Numbers (Long)
HumanoidCPU
714
27 days ago
Happy Numbers (Long)
HumanoidCPU
697
27 days ago
Happy Numbers (Long)
HumanoidCPU
564
27 days ago
Happy Numbers (Long)
HumanoidCPU
552
27 days ago
Happy Numbers (Long)
HumanoidCPU
561
27 days ago
Happy Numbers (Long)
HumanoidCPU
559
27 days ago
Happy Numbers (Long)
HumanoidCPU
599
27 days ago
Happy Numbers (Long)
HumanoidCPU
564
27 days ago
Happy Numbers (Long)
HumanoidCPU
566
27 days ago
Happy Numbers (Long)
HumanoidCPU
569
27 days ago
Happy Numbers (Long)
HumanoidCPU
561
27 days ago