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
Arrows
stephanie-flower
212
12ms
14 days ago
Arrows
alexsave
199
13ms
16 Oct 2025
Arrows
iczelia
257
11ms
14 Oct 2025
Arrows
tetrogem
118
14ms
23 Aug 2025
Arrows
CaedenHarper
116
15ms
23 Aug 2025
Arrows
acollett89
138
12ms
5 Aug 2025
Arrows
KaleChips22
424
12ms
21 Jul 2025
Arrows
avavuvu
407
11ms
22 Jun 2025
Arrows
gigaprofisi
241
13ms
20 Jun 2025
Arrows
4very
118
13ms
10 Jun 2025
Arrows
Protothor
141
14ms
29 May 2025
Arrows
MyXoToD
433
17ms
7 May 2025
Arrows
strattonwhisler
230
14ms
7 May 2025
Arrows
smclaughlin-cf
155
12ms
6 May 2025
Arrows
voytxt
104
13ms
4 Apr 2025
Arrows
dokutan
242
11ms
29 Mar 2025
Arrows
targrik
123
13ms
20 Mar 2025
Arrows
madeforlosers
140
11ms
5 Mar 2025
Arrows
emgordon154
108
12ms
3 Mar 2025
Arrows
BalaM314
103
12ms
1 Mar 2025
Arrows
lukegustafson
💎
85
15ms
14 Feb 2025
Arrows
sean-niemann
🥉
87
12ms
19 Jan 2025
Arrows
emplv
🥉
87
14ms
19 Jan 2025
Arrows
JayXon
🥈
86
12ms
18 Jan 2025
Arrows
eranws
132
12ms
23 Dec 2024
Arrows
Salutations45
178
13ms
21 Dec 2024
Arrows
Ashikpaul
383
13ms
13 Oct 2024
Arrows
Mabeloid
137
15ms
13 Oct 2024
Arrows
xyangst
396
11ms
12 Oct 2024
Arrows
MiffOttah
145
14ms
6 Oct 2024
Arrows
kpal81xd
108
11ms
19 Sep 2024
Arrows
danielphilpottwork
108
11ms
16 Sep 2024
Arrows
helbling
114
14ms
8 Sep 2024
Arrows
R4z0rX
263
15ms
27 Aug 2024
Arrows
noahhorlacher
432
12ms
5 Aug 2024
Arrows
vlpx
91
13ms
1 Aug 2024
Arrows
Florian-Mt
154
13ms
9 Jul 2024
Arrows
IchBinMichMarkus
224
12ms
1 Jul 2024
Arrows
thisishowmymindworks
97
13ms
25 Jun 2024
Arrows
carlmrichter
250
12ms
22 Jun 2024
Arrows
hacker112
177
15ms
19 Jun 2024
Arrows
Ranner198
365
13ms
13 Jun 2024
Arrows
Steffan153
95
11ms
5 May 2024
Arrows
dbkirk4211
124
15ms
3 May 2024
Arrows
LukeBridges
152
11ms
11 Apr 2024
Arrows
CarsonChr
119
14ms
6 Apr 2024
Arrows
kordrun
623
15ms
4 Apr 2024
Arrows
lewdev
163
12ms
14 Mar 2024
Arrows
Michiocre
144
13ms
20 Feb 2024
Arrows
two-bad
120
11ms
7 Feb 2024
Arrows
mckymsh
135
14ms
4 Feb 2024
Arrows
prplz
103
12ms
30 Jan 2024
Arrows
BBoehm
140
14ms
30 Jan 2024
Arrows
yuranebykov
273
12ms
29 Jan 2024
Arrows
itserasmus
114
14ms
25 Jan 2024
Arrows
olleicua
111
14ms
13 Jan 2024
Arrows
Re-Adventures
177
15ms
17 Dec 2023
Arrows
Ephellon
157
11ms
16 Dec 2023
Arrows
GeorgeStechman
131
12ms
4 Dec 2023
Arrows
unfinishedprogram
116
13ms
26 Oct 2023
Arrows
BambooleanLogic
162
12ms
19 Oct 2023
Arrows
Larento
173
15ms
14 Oct 2023
Arrows
weliveinhell
122
15ms
2 Oct 2023
Arrows
DialFrost
119
12ms
28 Sep 2023
Arrows
BKGSr2
703
13ms
26 Sep 2023
Arrows
coreynash
113
20ms
25 Sep 2023
Arrows
Argeento
115
12ms
8 Sep 2023
Arrows
rgthree
129
17ms
6 Sep 2023
Arrows
Tenclea
239
11ms
24 Aug 2023
Arrows
Andrey-Plotnikov
114
15ms
22 Aug 2023
Arrows
apokryfos
396
12ms
19 Aug 2023
Arrows
inventshah
110
14ms
20 Jul 2023
Arrows
trinityy-7
171
15ms
17 Jul 2023
Arrows
janbehrens
114
15ms
10 Jul 2023
Arrows
Vaekor
213
19ms
9 Jul 2023