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
Minesweeper
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
Binary Lambda Calculus
Calendar
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
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
Minesweeper
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
Binary Lambda Calculus
Calendar
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Emirp Numbers
FortuiteMan
61
10ms
22 hours ago
Emirp Numbers
ryyyn
64
11ms
2 days ago
Emirp Numbers
Matter1024
85
10ms
2 days ago
Emirp Numbers
albanian-laundromat
61
11ms
2 days ago
Emirp Numbers
Seek64
59
11ms
2 days ago
Emirp Numbers
Babafaba
64
11ms
2 days ago
Emirp Numbers
luuumine
64
16ms
2 days ago
Emirp Numbers
CommandLeo
97
10ms
5 days ago
Emirp Numbers
madeforlosers
94
28ms
8 days ago
Emirp Numbers
blaztoma
71
10ms
9 days ago
Emirp Numbers
Emutis
76
10ms
9 days ago
Emirp Numbers
GolfingSuccess
59
10ms
12 days ago
Emirp Numbers
solisolu
108
47ms
13 days ago
Emirp Numbers
Aquateraneal
140
14ms
15 days ago
Emirp Numbers
qpwoeirut
101
11ms
19 days ago
Emirp Numbers
Deedogg
106
10ms
20 days ago
Emirp Numbers
Mabeloid
113
12ms
20 Oct 2025
Emirp Numbers
iczelia
113
12ms
19 Oct 2025
Emirp Numbers
CheeseCake628
100
11ms
18 Oct 2025
Emirp Numbers
Code-Coder-coder
128
15ms
11 Oct 2025
Emirp Numbers
TJK-S
143
24ms
10 Oct 2025
Emirp Numbers
jacekwladzinski
111
13ms
2 Oct 2025
Emirp Numbers
BrunoVisnadi
86
10ms
30 Sep 2025
Emirp Numbers
smilesformiles3
143
14ms
24 Sep 2025
Emirp Numbers
SectorCorruptor
110
12ms
21 Sep 2025
Emirp Numbers
snoozingnewt
79
42ms
16 Sep 2025
Emirp Numbers
cthierfelder
155
17ms
3 Sep 2025
Emirp Numbers
InigoK
97
12ms
28 Aug 2025
Emirp Numbers
wobblybits
157
12ms
23 Aug 2025
Emirp Numbers
gsprochette
154
10ms
22 Aug 2025
Emirp Numbers
osNiko
112
18ms
21 Aug 2025
Emirp Numbers
katss2
100
10ms
19 Aug 2025
Emirp Numbers
Upload-and-View
216
10ms
16 Aug 2025
Emirp Numbers
H3XDaemon
100
17ms
15 Aug 2025
Emirp Numbers
wuduculfre
99
10ms
3 Aug 2025
Emirp Numbers
Zhenyu-Bo
441
10ms
31 Jul 2025
Emirp Numbers
mossiegoat
87
35ms
25 Jul 2025
Emirp Numbers
addmai
112
14ms
25 Jul 2025
Emirp Numbers
benvreeves
150
9ms
25 Jul 2025
Emirp Numbers
hamilton-bonds
125
11ms
24 Jul 2025
Emirp Numbers
dirckvdende
61
9ms
24 Jul 2025
Emirp Numbers
RaBa21
82
12ms
19 Jul 2025
Emirp Numbers
AstroOrbis
126
19ms
17 Jul 2025
Emirp Numbers
clayboll99
122
48ms
14 Jul 2025
Emirp Numbers
SanderRuud
87
10ms
13 Jul 2025
Emirp Numbers
KasperKivimaeki
85
10ms
12 Jul 2025
Emirp Numbers
lukegustafson
🥇
55
9ms
11 Jul 2025
Emirp Numbers
Flekay
111
12ms
11 Jul 2025
Emirp Numbers
andrewjc2000
102
11ms
9 Jul 2025
Emirp Numbers
RYSF13
148
9ms
5 Jul 2025
Emirp Numbers
codewrite
207
11ms
4 Jul 2025
Emirp Numbers
4atj
68
10ms
30 Jun 2025
Emirp Numbers
tejapvk
128
10ms
19 Jun 2025
Emirp Numbers
Alban-Boissard
112
167ms
14 Jun 2025
Emirp Numbers
ffelixm
64
9ms
12 Jun 2025
Emirp Numbers
fuzzylojik-golf
61
10ms
9 Jun 2025
Emirp Numbers
TheZwierzLF
113
14ms
2 Jun 2025
Emirp Numbers
aaardwark
149
16ms
2 Jun 2025
Emirp Numbers
Lv0Sys
127
12ms
1 Jun 2025
Emirp Numbers
ToE42
122
27ms
28 May 2025
Emirp Numbers
WillowWispy
117
38ms
25 May 2025
Emirp Numbers
kbeat
137
23ms
21 May 2025
Emirp Numbers
ridingqwerty
128
29ms
21 May 2025
Emirp Numbers
EnisEfe0
167
17ms
18 May 2025
Emirp Numbers
khvdm
🥇
55
9ms
9 May 2025
Emirp Numbers
Mukundan314
61
9ms
8 May 2025
Emirp Numbers
40fied4t
108
32ms
5 May 2025
Emirp Numbers
alabhyajindal
143
13ms
24 Apr 2025
Emirp Numbers
0dyse
140
19ms
23 Apr 2025
Emirp Numbers
evan18c
79
16ms
23 Apr 2025
Emirp Numbers
Keegan-T
79
16ms
23 Apr 2025
Emirp Numbers
VictorStenvers
150
11ms
23 Apr 2025
Emirp Numbers
chartung17
114
45ms
20 Apr 2025
Emirp Numbers
emgordon154
61
9ms
10 Apr 2025
Emirp Numbers
Akilles1
166
52ms
10 Apr 2025