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
Evil Numbers (Long)
dokutan
41
3 hours ago
Evil Numbers (Long)
dokutan
36
3 hours ago
Evil Numbers (Long)
dokutan
64
3 hours ago
Evil Numbers (Long)
dokutan
83
4 hours ago
Evil Numbers (Long)
dokutan
50
4 hours ago
Evil Numbers (Long)
dokutan
52
4 hours ago
Evil Numbers (Long)
Natanaelel
52
14 hours ago
Evil Numbers (Long)
fuzzylojik-golf
20
34 hours ago
Evil Numbers (Long)
mossiegoat
65
34 hours ago
Evil Numbers (Long)
dokutan
75
44 hours ago
Evil Numbers (Long)
vgamula
51
47 hours ago
Evil Numbers (Long)
dbut2
68
2 days ago
Evil Numbers (Long)
dbut2
95
2 days ago
Evil Numbers (Long)
YAJUE114514
61
2 days ago
Evil Numbers (Long)
albanian-laundromat
54
3 days ago
Evil Numbers (Long)
redweasel
50
3 days ago
Evil Numbers (Long)
albanian-laundromat
44
3 days ago
Evil Numbers (Long)
SanderRuud
42
5 days ago
Evil Numbers (Long)
codewrite
48
6 days ago
Evil Numbers (Long)
Flekay
42
6 days ago
Evil Numbers (Long)
RaBa21
42
7 days ago
Evil Numbers (Long)
clayboll99
74
8 days ago
Evil Numbers (Long)
kaascevich
52
8 days ago
Evil Numbers (Long)
plcc0
11
8 days ago
Evil Numbers (Long)
ovs-code
10
9 days ago
Evil Numbers (Long)
Natanaelel
10
9 days ago
Evil Numbers (Long)
2bular
10
9 days ago
Evil Numbers (Long)
LorenzoDeGaspari
69
10 days ago
Evil Numbers (Long)
synt7x
47
10 days ago
Evil Numbers (Long)
islptng
57
10 days ago
Evil Numbers (Long)
dirckvdende
47
12 days ago
Evil Numbers (Long)
DialFrost
🥉
135
12 days ago
Evil Numbers (Long)
edsrzf
54
12 days ago
Evil Numbers (Long)
gigaprofisi
1,949
13 days ago
Evil Numbers (Long)
Shanethegamer
1,976
14 days ago
Evil Numbers (Long)
bzijlema
42
14 days ago
Evil Numbers (Long)
Shanethegamer
1,959
15 days ago
Evil Numbers (Long)
fuzzylojik-golf
66
16 days ago
Evil Numbers (Long)
fuzzylojik-golf
47
16 days ago
Evil Numbers (Long)
victorz-ca
50
16 days ago
Evil Numbers (Long)
dokutan
55
17 days ago
Evil Numbers (Long)
dokutan
55
17 days ago
Evil Numbers (Long)
4atj
🥇
41
17 days ago
Evil Numbers (Long)
KasperKivimaeki
42
17 days ago
Evil Numbers (Long)
targrik
114
18 days ago
Evil Numbers (Long)
AstroOrbis
65
18 days ago
Evil Numbers (Long)
matejmatik123
110
20 days ago
Evil Numbers (Long)
edsrzf
63
21 days ago
Evil Numbers (Long)
edsrzf
84
21 days ago
Evil Numbers (Long)
Ripick
42
22 days ago
Evil Numbers (Long)
Apataras
100
25 days ago
Evil Numbers (Long)
Andrey-Plotnikov
57
25 days ago
Evil Numbers (Long)
jiji7879
56
27 days ago
Evil Numbers (Long)
gigaprofisi
60
27 days ago
Evil Numbers (Long)
Argeento
85
19 Jun 2025
Evil Numbers (Long)
m-tkach
🥉
92
18 Jun 2025
Evil Numbers (Long)
gautambp
62
17 Jun 2025
Evil Numbers (Long)
0xjac
86
17 Jun 2025
Evil Numbers (Long)
fuzzylojik-golf
71
15 Jun 2025
Evil Numbers (Long)
fuzzylojik-golf
51
15 Jun 2025
Evil Numbers (Long)
fuzzylojik-golf
35
15 Jun 2025
Evil Numbers (Long)
AlephSquirrel
16
14 Jun 2025
Evil Numbers (Long)
fuzzylojik-golf
35
14 Jun 2025
Evil Numbers (Long)
emgordon154
17
14 Jun 2025
Evil Numbers (Long)
ejini6969
42
13 Jun 2025
Evil Numbers (Long)
ejini6969
39
13 Jun 2025
Evil Numbers (Long)
acollett89
60
12 Jun 2025
Evil Numbers (Long)
Protothor
57
12 Jun 2025
Evil Numbers (Long)
Alban-Boissard
70
10 Jun 2025
Evil Numbers (Long)
emgordon154
95
10 Jun 2025
Evil Numbers (Long)
theonetruenerd
51
9 Jun 2025
Evil Numbers (Long)
KatieLG
1,652
7 Jun 2025
Evil Numbers (Long)
emgordon154
💎
37
6 Jun 2025
Evil Numbers (Long)
albanian-laundromat
80
4 Jun 2025
Evil Numbers (Long)
emgordon154
18
4 Jun 2025