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
Bytes
Time
Submitted
Prime Numbers
Babafaba
111
11ms
28 hours ago
Prime Numbers
KatieLG
117
180ms
31 hours ago
Prime Numbers
plcc0
9
113ms
33 hours ago
Prime Numbers
kmathis22
76
419ms
34 hours ago
Prime Numbers
iczelia
30
14ms
40 hours ago
Prime Numbers
Mabeloid
88
134ms
2 days ago
Prime Numbers
TJK-S
76
13ms
3 days ago
Prime Numbers
Mabeloid
84
2ms
4 days ago
Prime Numbers
luuumine
45
10ms
4 days ago
Prime Numbers
dokutan
🥈
131
1,745ms
5 days ago
Prime Numbers
52525rr
63
10ms
5 days ago
Prime Numbers
ian-h-chamberlain
80
47ms
6 days ago
Prime Numbers
snoozingnewt
47
13ms
6 days ago
Prime Numbers
snoozingnewt
53
182ms
6 days ago
Prime Numbers
snoozingnewt
53
183ms
6 days ago
Prime Numbers
iczelia
🥇
43
155ms
6 days ago
Prime Numbers
iczelia
41
10ms
6 days ago
Prime Numbers
iczelia
84
5ms
6 days ago
Prime Numbers
iczelia
44
10ms
6 days ago
Prime Numbers
2bular
🥇
11
38ms
7 days ago
Prime Numbers
randolchance
43
10ms
7 days ago
Prime Numbers
ApoChagi
45
10ms
7 days ago
Prime Numbers
CheeseCake628
46
407ms
7 days ago
Prime Numbers
SirObby
89
2ms
7 days ago
Prime Numbers
CaedenHarper
85
496ms
8 days ago
Prime Numbers
CaedenHarper
61
2ms
8 days ago
Prime Numbers
CheeseCake628
47
10ms
9 days ago
Prime Numbers
Babafaba
72
2ms
10 days ago
Prime Numbers
Babafaba
39
9ms
10 days ago
Prime Numbers
Babafaba
34
35ms
10 days ago
Prime Numbers
Babafaba
41
387ms
10 days ago
Prime Numbers
Babafaba
42
10ms
10 days ago
Prime Numbers
snoozingnewt
85
337ms
12 days ago
Prime Numbers
alexsave
44
10ms
12 days ago
Prime Numbers
Artemis21
60
10ms
13 days ago
Prime Numbers
CornerMercury
40
387ms
13 days ago
Prime Numbers
altugbeyhan
52
10ms
13 days ago
Prime Numbers
Emutis
53
10ms
13 days ago
Prime Numbers
edsrzf
🥇
21
99ms
13 days ago
Prime Numbers
blaztoma
32
41ms
13 days ago
Prime Numbers
iczelia
40
3ms
14 days ago
Prime Numbers
iczelia
58
2ms
14 days ago
Prime Numbers
iczelia
54
2ms
14 days ago
Prime Numbers
ovs-code
7
349ms
14 days ago
Prime Numbers
ZoDoneRightNow
80
8ms
15 days ago
Prime Numbers
Yax42
59
2ms
15 days ago
Prime Numbers
Beshamel
75
9ms
16 days ago
Prime Numbers
WildTooth
79
443ms
16 days ago
Prime Numbers
snoozingnewt
33
2ms
17 days ago
Prime Numbers
snoozingnewt
58
2ms
17 days ago
Prime Numbers
snoozingnewt
9
334ms
17 days ago
Prime Numbers
snoozingnewt
72
106ms
17 days ago
Prime Numbers
snoozingnewt
61
3ms
17 days ago
Prime Numbers
snoozingnewt
53
1,370ms
17 days ago
Prime Numbers
snoozingnewt
81
43ms
17 days ago
Prime Numbers
snoozingnewt
105
40ms
17 days ago
Prime Numbers
snoozingnewt
50
5ms
17 days ago
Prime Numbers
snoozingnewt
42
82ms
17 days ago
Prime Numbers
snoozingnewt
9
137ms
17 days ago
Prime Numbers
snoozingnewt
20
38ms
17 days ago
Prime Numbers
snoozingnewt
43
261ms
17 days ago
Prime Numbers
snoozingnewt
37
300ms
17 days ago
Prime Numbers
kg583
💎
53
6ms
17 days ago
Prime Numbers
namelessiw
7
497ms
17 days ago
Prime Numbers
mrondon8
49
912ms
17 days ago
Prime Numbers
wleightond
26
3ms
17 days ago
Prime Numbers
lelbal
54
13ms
17 days ago
Prime Numbers
snoozingnewt
520
985ms
19 days ago
Prime Numbers
snoozingnewt
95
2ms
19 days ago
Prime Numbers
HumanoidCPU
79
2ms
19 days ago
Prime Numbers
katss2
61
16ms
19 days ago
Prime Numbers
snoozingnewt
95
408ms
19 days ago
Prime Numbers
snoozingnewt
589
13ms
19 days ago
Prime Numbers
snoozingnewt
140
17ms
19 days ago
Prime Numbers
stefangimmillaro
🥉
71
491ms
19 days ago