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
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
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
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
><>
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
ALGOL 68
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
><>
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
ALGOL 68
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
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
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
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
Chars
Time
Submitted
Fibonacci
FranklinJiaChen
40
10ms
5 hours ago
Fibonacci
AstroOrbis
120
120ms
9 hours ago
Fibonacci
JOrE20
34
2ms
11 hours ago
Fibonacci
FranklinJiaChen
86
2ms
19 hours ago
Fibonacci
FoxInTheClouds
🥇
36
10ms
21 hours ago
Fibonacci
FoxInTheClouds
50
2ms
22 hours ago
Fibonacci
AstroOrbis
59
10ms
25 hours ago
Fibonacci
FranklinJiaChen
31
34ms
27 hours ago
Fibonacci
FranklinJiaChen
🥇
43
2ms
27 hours ago
Fibonacci
FranklinJiaChen
79
257ms
27 hours ago
Fibonacci
emgordon154
37
34ms
34 hours ago
Fibonacci
albanian-laundromat
14
2ms
2 days ago
Fibonacci
Steffan153
🥇
40
2ms
2 days ago
Fibonacci
Steffan153
🥇
34
737ms
3 days ago
Fibonacci
Steffan153
50
5ms
3 days ago
Fibonacci
Steffan153
🥇
43
37ms
3 days ago
Fibonacci
Steffan153
49
2,093ms
3 days ago
Fibonacci
Steffan153
🥇
30
1ms
4 days ago
Fibonacci
Steffan153
135
1,806ms
4 days ago
Fibonacci
Steffan153
🥇
25
59ms
5 days ago
Fibonacci
Steffan153
🥇
39
8ms
5 days ago
Fibonacci
Steffan153
🥇
57
367ms
5 days ago
Fibonacci
JOrE20
135
40ms
5 days ago
Fibonacci
FortuiteMan
68
1,021ms
5 days ago
Fibonacci
emgordon154
163
8ms
5 days ago
Fibonacci
emgordon154
35
749ms
5 days ago
Fibonacci
dokutan
39
3ms
6 days ago
Fibonacci
bpharaldsson
82
5ms
6 days ago
Fibonacci
snoozingnewt
50
38ms
6 days ago
Fibonacci
snoozingnewt
49
39ms
6 days ago
Fibonacci
dokutan
46
61ms
7 days ago
Fibonacci
dokutan
44
2ms
7 days ago
Fibonacci
plcc0
8
41ms
7 days ago
Fibonacci
FoxInTheClouds
47
2ms
8 days ago
Fibonacci
FoxInTheClouds
24
92ms
8 days ago
Fibonacci
Shanethegamer
141
6ms
8 days ago
Fibonacci
Shanethegamer
146
2ms
8 days ago
Fibonacci
frankgraziano
51
6ms
8 days ago
Fibonacci
elgan65536
🥇
64
121ms
8 days ago
Fibonacci
SwordF-Official
43
3ms
8 days ago
Fibonacci
GolfingSuccess
28
211ms
9 days ago
Fibonacci
voytxt
67
121ms
9 days ago
Fibonacci
HumanoidCPU
146
2ms
10 days ago
Fibonacci
Stockoh
319
6ms
10 days ago
Fibonacci
ndren
87
54ms
10 days ago
Fibonacci
Andriamanitra
53
2ms
10 days ago
Fibonacci
GolfingSuccess
41
2ms
10 days ago
Fibonacci
sean-niemann
21
32ms
10 days ago
Fibonacci
Yewzir
41
2ms
10 days ago
Fibonacci
nyoshe
72
118ms
11 days ago
Fibonacci
Ronterox
46
35ms
11 days ago
Fibonacci
plcc0
39
3ms
11 days ago
Fibonacci
JOrE20
21
95ms
11 days ago
Fibonacci
TheSecondComing123
38
11ms
11 days ago
Fibonacci
D-MOVE
79
314ms
11 days ago
Fibonacci
FoxInTheClouds
40
9ms
11 days ago
Fibonacci
bpharaldsson
59
403ms
11 days ago
Fibonacci
bpharaldsson
40
10ms
11 days ago
Fibonacci
bpharaldsson
63
2ms
11 days ago
Fibonacci
zachattack531
127
10ms
12 days ago
Fibonacci
Vianpyro
71
122ms
12 days ago
Fibonacci
bpharaldsson
136
37ms
12 days ago
Fibonacci
JOrE20
56
2ms
12 days ago
Fibonacci
SuperFola
68
41ms
12 days ago
Fibonacci
sean-niemann
🥇
34
5ms
12 days ago
Fibonacci
error256
🥇
60
106ms
13 days ago
Fibonacci
helbling
69
120ms
13 days ago
Fibonacci
error256
56
7ms
13 days ago
Fibonacci
Andrey2001
6,067
2ms
13 days ago
Fibonacci
Andrey2001
144
5ms
13 days ago
Fibonacci
msbranicky
38
468ms
13 days ago
Fibonacci
msbranicky
46
76ms
13 days ago
Fibonacci
msbranicky
54
2,145ms
13 days ago
Fibonacci
msbranicky
38
11ms
13 days ago
Fibonacci
plcc0
37
4ms
14 days ago
Fibonacci
Heathcorp
65
133ms
14 days ago
Fibonacci
matricronia
68
367ms
15 days ago
Fibonacci
matricronia
49
2ms
15 days ago
Fibonacci
zgialor-lab
39
10ms
15 days ago
Fibonacci
matricronia
42
10ms
15 days ago