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
Trinomial Triangle
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
Smooth Numbers
Snake
Sphenic Numbers
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
Luau
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
Luau
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
Trinomial Triangle
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
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Submitted
Emirp Numbers
KasperKivimaeki
115
30 hours ago
Emirp Numbers
Yax42
81
30 hours ago
Emirp Numbers
snoozingnewt
181
44 hours ago
Emirp Numbers
snoozingnewt
150
2 days ago
Emirp Numbers
luuumine
99
2 days ago
Emirp Numbers
CaedenHarper
188
2 days ago
Emirp Numbers
snoozingnewt
93
2 days ago
Emirp Numbers
Zstr25
356
3 days ago
Emirp Numbers
albanian-laundromat
62
3 days ago
Emirp Numbers
snoozingnewt
160
3 days ago
Emirp Numbers
HumanoidCPU
144
3 days ago
Emirp Numbers
snoozingnewt
259
4 days ago
Emirp Numbers
stefangimmillaro
99
4 days ago
Emirp Numbers
snoozingnewt
53
4 days ago
Emirp Numbers
snoozingnewt
98
5 days ago
Emirp Numbers
snoozingnewt
135
5 days ago
Emirp Numbers
KatieLG
103
5 days ago
Emirp Numbers
namelessiw
🥇
72
6 days ago
Emirp Numbers
snoozingnewt
123
7 days ago
Emirp Numbers
KatieLG
63
7 days ago
Emirp Numbers
jacekwladzinski
111
8 days ago
Emirp Numbers
Yewzir
91
8 days ago
Emirp Numbers
maweowo
26
8 days ago
Emirp Numbers
snoozingnewt
146
8 days ago
Emirp Numbers
BrunoVisnadi
86
10 days ago
Emirp Numbers
evnu
157
10 days ago
Emirp Numbers
evnu
37
10 days ago
Emirp Numbers
snoozingnewt
204
11 days ago
Emirp Numbers
qpwoeirut
111
11 days ago
Emirp Numbers
Shanethegamer
225
12 days ago
Emirp Numbers
snoozingnewt
236
12 days ago
Emirp Numbers
snoozingnewt
276
12 days ago
Emirp Numbers
snoozingnewt
79
12 days ago
Emirp Numbers
snoozingnewt
204
12 days ago
Emirp Numbers
snoozingnewt
167
13 days ago
Emirp Numbers
blaztoma
106
13 days ago
Emirp Numbers
kmathis22
166
13 days ago
Emirp Numbers
Schmitt-Very-Cool
215
14 days ago
Emirp Numbers
albanian-laundromat
106
14 days ago
Emirp Numbers
kmathis22
151
14 days ago
Emirp Numbers
albanian-laundromat
65
14 days ago
Emirp Numbers
snoozingnewt
125
14 days ago
Emirp Numbers
snoozingnewt
133
14 days ago
Emirp Numbers
snoozingnewt
230
14 days ago
Emirp Numbers
snoozingnewt
365
14 days ago
Emirp Numbers
snoozingnewt
103
14 days ago
Emirp Numbers
snoozingnewt
160
14 days ago
Emirp Numbers
snoozingnewt
216
14 days ago
Emirp Numbers
snoozingnewt
124
14 days ago
Emirp Numbers
snoozingnewt
306
14 days ago
Emirp Numbers
snoozingnewt
217
14 days ago
Emirp Numbers
snoozingnewt
112
14 days ago
Emirp Numbers
snoozingnewt
83
14 days ago
Emirp Numbers
kmathis22
180
14 days ago
Emirp Numbers
Liibe
149
15 days ago
Emirp Numbers
nwellnhof
101
15 days ago
Emirp Numbers
sean-niemann
🥇
72
15 days ago
Emirp Numbers
emgordon154
177
15 days ago
Emirp Numbers
Shanethegamer
166
15 days ago
Emirp Numbers
dokutan
93
16 days ago
Emirp Numbers
smilesformiles3
143
16 days ago
Emirp Numbers
DialFrost
106
16 days ago
Emirp Numbers
JayXon
🥇
72
16 days ago
Emirp Numbers
jared-hughes
98
16 days ago
Emirp Numbers
edsrzf
82
16 days ago
Emirp Numbers
KatieLG
183
16 days ago
Emirp Numbers
CaedenHarper
84
17 days ago
Emirp Numbers
SectorCorruptor
110
19 days ago
Emirp Numbers
Shanethegamer
29
21 days ago
Emirp Numbers
Shanethegamer
144
21 days ago
Emirp Numbers
Emutis
108
22 days ago
Emirp Numbers
fuzzylojik-golf
🥉
46
23 days ago
Emirp Numbers
timhaj
177
23 days ago
Emirp Numbers
snoozingnewt
79
24 days ago
Emirp Numbers
sean-niemann
💎
44
24 days ago