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
Alphabetic Numbers
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
Alphabetic Numbers
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
theobori
65
11ms
9 hours ago
Tutorial
jkelly467
188
9ms
12 hours ago
Tutorial
Natanaelel
79
100ms
2 days ago
Tutorial
Cyssee
74
42ms
3 days ago
Tutorial
Cyssee
92
15ms
3 days ago
Tutorial
JOrE20
176
1,917ms
5 days ago
Tutorial
Steffan153
53
514ms
6 days ago
Tutorial
BREMAUCY
129
45ms
6 days ago
Tutorial
tsschepens
78
2ms
7 days ago
Tutorial
r-stem
81
14ms
8 days ago
Tutorial
SunnyFishQwQ
67
10ms
8 days ago
Tutorial
SunnyFishQwQ
114
57ms
8 days ago
Tutorial
emgordon154
81
11ms
8 days ago
Tutorial
frankgraziano
74
11ms
9 days ago
Tutorial
AlejoRjas
395
2,570ms
9 days ago
Tutorial
AlejoRjas
123
57ms
9 days ago
Tutorial
HacksAndSlash
151
2ms
9 days ago
Tutorial
CornerMercury
74
11ms
10 days ago
Tutorial
GolfingSuccess
76
447ms
10 days ago
Tutorial
GolfingSuccess
69
43ms
10 days ago
Tutorial
GolfingSuccess
74
11ms
10 days ago
Tutorial
DialFrost
74
10ms
10 days ago
Tutorial
Steffan153
74
10ms
10 days ago
Tutorial
edsrzf
74
10ms
10 days ago
Tutorial
pardouin
74
11ms
10 days ago
Tutorial
dokutan
74
10ms
10 days ago
Tutorial
Code-Coder-coder
135
2ms
10 days ago
Tutorial
Code-Coder-coder
67
12ms
10 days ago
Tutorial
FranklinJiaChen
98
4ms
11 days ago
Tutorial
MeWhenI
75
11ms
11 days ago
Tutorial
GrayJoKing
75
12ms
11 days ago
Tutorial
RodAlc24
78
2ms
11 days ago
Tutorial
Aquateraneal
67
10ms
11 days ago
Tutorial
Natanaelel
93
10ms
11 days ago
Tutorial
error256
106
12ms
11 days ago
Tutorial
JOrE20
115
2ms
11 days ago
Tutorial
darrenks
168
2ms
11 days ago
Tutorial
chenyuan33
67
11ms
11 days ago
Tutorial
targrik
145
4ms
12 days ago
Tutorial
targrik
161
2ms
12 days ago
Tutorial
targrik
218
86ms
12 days ago
Tutorial
FoxInTheClouds
124
3ms
13 days ago
Tutorial
Ultra814
115
2ms
13 days ago
Tutorial
Ultra814
61
14ms
13 days ago
Tutorial
emgordon154
84
56ms
13 days ago
Tutorial
Ultra814
286
3ms
14 days ago
Tutorial
Ultra814
330
2ms
14 days ago
Tutorial
Ultra814
187
133ms
14 days ago
Tutorial
Ultra814
30
40ms
14 days ago
Tutorial
Ultra814
30
732ms
14 days ago
Tutorial
WalrusesAreAwesome
152
11ms
15 days ago
Tutorial
mross39
96
10ms
15 days ago
Tutorial
netfri25
94
130ms
15 days ago
Tutorial
tomh1012
117
7ms
15 days ago
Tutorial
jshholland
66
10ms
15 days ago
Tutorial
jshholland
102
132ms
15 days ago
Tutorial
Ultra814
44
4ms
16 days ago
Tutorial
Ultra814
31
4ms
16 days ago
Tutorial
Matter1024
45
2,063ms
16 days ago
Tutorial
FoxInTheClouds
163
2ms
17 days ago
Tutorial
kurkale6ka
79
5ms
18 days ago
Tutorial
emgordon154
93
630ms
18 days ago
Tutorial
emgordon154
71
128ms
18 days ago
Tutorial
Andrey2001
161
2ms
18 days ago
Tutorial
janAkali
187
143ms
18 days ago
Tutorial
janAkali
135
1,114ms
18 days ago
Tutorial
janAkali
121
46ms
18 days ago
Tutorial
janAkali
275
308ms
18 days ago
Tutorial
janAkali
307
1,850ms
18 days ago
Tutorial
janAkali
285
47ms
18 days ago
Tutorial
janAkali
217
4ms
18 days ago
Tutorial
janAkali
124
92ms
18 days ago
Tutorial
janAkali
217
1,585ms
18 days ago
Tutorial
janAkali
234
154ms
18 days ago
Tutorial
janAkali
211
144ms
18 days ago
Tutorial
janAkali
252
177ms
18 days ago
Tutorial
janAkali
386
20ms
18 days ago
Tutorial
janAkali
157
13ms
18 days ago
Tutorial
janAkali
137
111ms
18 days ago
Tutorial
janAkali
135
2,061ms
18 days ago