Recent Solutions
Prev Hole
Play Hole
Next Hole
Achievements
Cheevos
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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Multitap Input
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
Tower of Hanoi
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
Connect Four
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
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
ALGOL 68
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
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
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
ALGOL 68
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
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
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Multitap Input
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
Tower of Hanoi
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
Connect Four
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
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Tutorial
Cyssee
92
15ms
2 days ago
Tutorial
r-stem
81
14ms
7 days ago
Tutorial
SunnyFishQwQ
67
10ms
7 days ago
Tutorial
Code-Coder-coder
67
12ms
9 days ago
Tutorial
Aquateraneal
67
10ms
10 days ago
Tutorial
chenyuan33
67
11ms
10 days ago
Tutorial
WalrusesAreAwesome
152
11ms
14 days ago
Tutorial
mross39
96
10ms
14 days ago
Tutorial
jshholland
66
10ms
14 days ago
Tutorial
JoeCustoms
79
11ms
18 days ago
Tutorial
Jonson26
88
10ms
18 days ago
Tutorial
5cw
65
10ms
20 days ago
Tutorial
Steffan153
65
10ms
21 days ago
Tutorial
elgan65536
69
13ms
23 days ago
Tutorial
SectorCorruptor
72
10ms
23 days ago
Tutorial
TheSecondComing123
67
11ms
27 days ago
Tutorial
zachattack531
87
12ms
4 Feb 2026
Tutorial
AERobert
84
10ms
4 Feb 2026
Tutorial
TaserTheFox
67
12ms
3 Feb 2026
Tutorial
chriskhosh
90
11ms
2 Feb 2026
Tutorial
kasarino
93
12ms
1 Feb 2026
Tutorial
Andrey2001
67
12ms
1 Feb 2026
Tutorial
StefanHabel
67
12ms
1 Feb 2026
Tutorial
matricronia
67
11ms
1 Feb 2026
Tutorial
FoxInTheClouds
65
10ms
30 Jan 2026
Tutorial
denkyuu1
66
13ms
30 Jan 2026
Tutorial
JadonKJones
67
13ms
20 Jan 2026
Tutorial
softpankekk7
92
12ms
16 Jan 2026
Tutorial
jakcharvat
65
10ms
13 Jan 2026
Tutorial
tomh1012
74
10ms
13 Jan 2026
Tutorial
sam-bryett
93
10ms
11 Jan 2026
Tutorial
DavidAJL
546
13ms
7 Jan 2026
Tutorial
blaztoma
92
12ms
24 Dec 2025
Tutorial
enigma
69
9ms
20 Dec 2025
Tutorial
logalex8369
100
11ms
18 Dec 2025
Tutorial
celiendonze
92
12ms
18 Dec 2025
Tutorial
zgialor-lab
67
11ms
17 Dec 2025
Tutorial
kurkale6ka
92
12ms
16 Dec 2025
Tutorial
yujqiao
65
11ms
15 Dec 2025
Tutorial
FortuiteMan
65
10ms
13 Dec 2025
Tutorial
yoikolover
96
11ms
11 Dec 2025
Tutorial
benanlam
152
10ms
11 Dec 2025
Tutorial
MyckollWinchester
92
13ms
10 Dec 2025
Tutorial
punoko
74
11ms
9 Dec 2025
Tutorial
brianrainer
96
11ms
8 Dec 2025
Tutorial
273dan
106
10ms
7 Dec 2025
Tutorial
MSRishab007
102
12ms
7 Dec 2025
Tutorial
slimer37
86
12ms
6 Dec 2025
Tutorial
geck007
66
10ms
5 Dec 2025
Tutorial
llPlayll
67
12ms
5 Dec 2025
Tutorial
Languag3
65
12ms
5 Dec 2025
Tutorial
lilymeoww
67
11ms
2 Dec 2025
Tutorial
pikapikapikapikapikapika
80
12ms
2 Dec 2025
Tutorial
EfficiencySimplicity
98
11ms
1 Dec 2025
Tutorial
TheAtrossian
74
12ms
1 Dec 2025
Tutorial
John-Jkar
152
11ms
27 Nov 2025
Tutorial
Emutis
65
12ms
26 Nov 2025
Tutorial
adityachandak287
67
11ms
26 Nov 2025
Tutorial
JOrE20
65
11ms
25 Nov 2025
Tutorial
Voltrifrodec
92
13ms
25 Nov 2025
Tutorial
Babafaba
65
11ms
24 Nov 2025
Tutorial
kayaulai
87
11ms
23 Nov 2025
Tutorial
Carlos-EAC
88
12ms
23 Nov 2025
Tutorial
GodlyProgrammer1
67
11ms
22 Nov 2025
Tutorial
levinwinter
67
11ms
21 Nov 2025
Tutorial
sunleonid
65
10ms
21 Nov 2025
Tutorial
Mefred
67
13ms
21 Nov 2025
Tutorial
chattyplatinumcool
66
12ms
18 Nov 2025
Tutorial
j-zhang43
65
11ms
17 Nov 2025
Tutorial
HunterC14
82
12ms
17 Nov 2025
Tutorial
M4rc0g1
74
12ms
17 Nov 2025
Tutorial
NicoBliss
114
12ms
16 Nov 2025
Tutorial
Matter1024
65
12ms
15 Nov 2025
Tutorial
Plazmaz
66
12ms
14 Nov 2025
Tutorial
msbranicky
77
13ms
11 Nov 2025
Tutorial
Papushkado
66
12ms
10 Nov 2025
Tutorial
Boowie41
67
12ms
10 Nov 2025
Tutorial
aalec
94
11ms
9 Nov 2025
Tutorial
abali2509
102
10ms
8 Nov 2025
Tutorial
TheDevilWillBeBee
67
12ms
7 Nov 2025