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
Bytes
Time
Submitted
Evil Numbers (Long)
arcpolaris
75
384ms
8 days ago
Evil Numbers (Long)
qrakhen
72
382ms
9 days ago
Evil Numbers (Long)
Skellybob56
86
439ms
9 days ago
Evil Numbers (Long)
snoozingnewt
67
322ms
26 days ago
Evil Numbers (Long)
CaedenHarper
99
335ms
21 Oct 2025
Evil Numbers (Long)
albanian-laundromat
58
341ms
30 Sep 2025
Evil Numbers (Long)
Decrare
89
336ms
17 Sep 2025
Evil Numbers (Long)
AdrienHache
🥇
57
325ms
15 Sep 2025
Evil Numbers (Long)
michelebastione
75
549ms
28 Aug 2025
Evil Numbers (Long)
fuzzylojik-golf
🥇
57
314ms
20 Aug 2025
Evil Numbers (Long)
dokutan
84
377ms
17 Jul 2025
Evil Numbers (Long)
Yax42
69
334ms
18 May 2025
Evil Numbers (Long)
kevinnaviapaiva
119
329ms
28 Feb 2025
Evil Numbers (Long)
Mezzofloat
102
316ms
26 Oct 2024
Evil Numbers (Long)
aliakseikalosha
84
323ms
22 Oct 2024
Evil Numbers (Long)
najs91
73
363ms
14 Oct 2024
Evil Numbers (Long)
Seanharrs
73
359ms
13 Oct 2024
Evil Numbers (Long)
Maximizer02
83
358ms
23 Sep 2024
Evil Numbers (Long)
Mabeloid
2,467
314ms
17 Sep 2024
Evil Numbers (Long)
ertz1ertz
77
348ms
12 Sep 2024
Evil Numbers (Long)
hippopotam00sehead
97
335ms
11 Sep 2024
Evil Numbers (Long)
Mikey-Beep
91
352ms
3 Sep 2024
Evil Numbers (Long)
HumanoidCPU
1,968
304ms
24 Aug 2024
Evil Numbers (Long)
pardouin
58
340ms
23 Aug 2024
Evil Numbers (Long)
Andriamanitra
69
374ms
16 Aug 2024
Evil Numbers (Long)
gpikmddk
70
362ms
12 Aug 2024
Evil Numbers (Long)
alicethecatwhisperermeow
70
354ms
7 Aug 2024
Evil Numbers (Long)
acer-xq
76
349ms
7 Aug 2024
Evil Numbers (Long)
namelessiw
🥇
57
335ms
27 Jul 2024
Evil Numbers (Long)
Alex-Huggett
95
360ms
13 Apr 2024
Evil Numbers (Long)
jwonagel
95
338ms
2 Apr 2024
Evil Numbers (Long)
Steffan153
🥇
57
312ms
13 Mar 2024
Evil Numbers (Long)
Herbert00709
58
333ms
22 Dec 2023
Evil Numbers (Long)
LS2021
72
332ms
24 Nov 2023
Evil Numbers (Long)
gidHog
83
351ms
21 Nov 2023
Evil Numbers (Long)
ElysiaVesper
89
309ms
19 Nov 2023
Evil Numbers (Long)
Betuaredead
58
311ms
12 Nov 2023
Evil Numbers (Long)
HumanEquivalentUnit
91
319ms
24 Oct 2023
Evil Numbers (Long)
liviucerchez
105
342ms
23 Oct 2023
Evil Numbers (Long)
Yewzir
58
299ms
14 Oct 2023
Evil Numbers (Long)
josephdwalker
83
352ms
4 Oct 2023
Evil Numbers (Long)
DialFrost
58
310ms
26 Sep 2023
Evil Numbers (Long)
bac0id
85
347ms
23 Sep 2023
Evil Numbers (Long)
carlpeter
121
338ms
4 Sep 2023
Evil Numbers (Long)
msbranicky
100
318ms
20 Aug 2023
Evil Numbers (Long)
biocommando
62
336ms
19 Aug 2023
Evil Numbers (Long)
Pyro569
127
325ms
20 Jul 2023
Evil Numbers (Long)
Adix-null
82
367ms
18 Jul 2023
Evil Numbers (Long)
sean-niemann
🥇
57
305ms
17 Jun 2023
Evil Numbers (Long)
Lydxn
🥇
57
310ms
15 Jun 2023
Evil Numbers (Long)
JayXon
🥇
57
320ms
13 Jun 2023
Evil Numbers (Long)
stefangimmillaro
🥇
57
321ms
12 Jun 2023
Evil Numbers (Long)
arctouch-cristiannevianna
86
327ms
29 May 2023
Evil Numbers (Long)
ericlangedijk
69
351ms
23 May 2023
Evil Numbers (Long)
Matgc04
80
344ms
19 May 2023
Evil Numbers (Long)
btnlq
58
309ms
9 May 2023
Evil Numbers (Long)
adyache
74
326ms
1 May 2023
Evil Numbers (Long)
rifatx
86
334ms
16 Mar 2023
Evil Numbers (Long)
Ripick
100
308ms
4 Feb 2023
Evil Numbers (Long)
annaproxy
64
323ms
4 Jan 2023
Evil Numbers (Long)
retrohun
2,467
300ms
27 Dec 2022
Evil Numbers (Long)
ChrisTheisen
90
362ms
14 Dec 2022
Evil Numbers (Long)
postie77
86
349ms
9 Dec 2022
Evil Numbers (Long)
wescombs10
119
333ms
29 Oct 2022
Evil Numbers (Long)
tomtheisen
58
305ms
28 Oct 2022
Evil Numbers (Long)
KatieLG
85
358ms
25 Oct 2022
Evil Numbers (Long)
hemphen
83
343ms
17 Oct 2022
Evil Numbers (Long)
billings7
58
314ms
16 Oct 2022
Evil Numbers (Long)
sm1lko
93
344ms
12 Oct 2022
Evil Numbers (Long)
SmartK8
87
351ms
11 Oct 2022
Evil Numbers (Long)
tomh1012
104
330ms
21 Sep 2022
Evil Numbers (Long)
nwellnhof
58
309ms
11 Sep 2022
Evil Numbers (Long)
KatieLG-Transpiler
2,471
309ms
10 Sep 2022
Evil Numbers (Long)
primo-ppcg
58
313ms
9 Sep 2022
Evil Numbers (Long)
p-vf
58
320ms
8 Sep 2022