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
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
Maze
Medal Tally
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
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
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
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
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
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
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
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
Maze
Medal Tally
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
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Chars
Submitted
Fibonacci
perlebach
49
9 hours ago
Fibonacci
mossiegoat
54
11 hours ago
Fibonacci
vidanm
73
20 hours ago
Fibonacci
heisenbirb
56
23 hours ago
Fibonacci
SwordF-Official
24
24 hours ago
Fibonacci
emetiel
193
36 hours ago
Fibonacci
ridingqwerty
14
37 hours ago
Fibonacci
Bozrem
127
39 hours ago
Fibonacci
CaedenHarper
42
2 days ago
Fibonacci
CaedenHarper
56
2 days ago
Fibonacci
CaedenHarper
125
2 days ago
Fibonacci
albanian-laundromat
264
2 days ago
Fibonacci
XenThe
40
2 days ago
Fibonacci
perlebach
114
2 days ago
Fibonacci
albanian-laundromat
56
2 days ago
Fibonacci
GrayJoKing
14
3 days ago
Fibonacci
sean-niemann
🥇
64
3 days ago
Fibonacci
sean-niemann
26
3 days ago
Fibonacci
aaardwark
52
3 days ago
Fibonacci
fuzzylojik-golf
🥇
45
3 days ago
Fibonacci
SwordF-Official
62
3 days ago
Fibonacci
SwordF-Official
70
3 days ago
Fibonacci
SwordF-Official
69
3 days ago
Fibonacci
CaedenHarper
31
4 days ago
Fibonacci
fuzzylojik-golf
28
4 days ago
Fibonacci
fuzzylojik-golf
70
4 days ago
Fibonacci
fuzzylojik-golf
🥇
94
4 days ago
Fibonacci
fuzzylojik-golf
🥇
51
4 days ago
Fibonacci
SwordF-Official
47
5 days ago
Fibonacci
SwordF-Official
45
5 days ago
Fibonacci
SwordF-Official
48
5 days ago
Fibonacci
SwordF-Official
87
5 days ago
Fibonacci
SwordF-Official
43
5 days ago
Fibonacci
SwordF-Official
41
5 days ago
Fibonacci
t3hcr
101
5 days ago
Fibonacci
ffelixm
52
5 days ago
Fibonacci
ffelixm
43
5 days ago
Fibonacci
ffelixm
88
5 days ago
Fibonacci
fuzzylojik-golf
42
6 days ago
Fibonacci
fuzzylojik-golf
35
6 days ago
Fibonacci
emgordon154
48
6 days ago
Fibonacci
emgordon154
70
6 days ago
Fibonacci
emgordon154
52
6 days ago
Fibonacci
emgordon154
47
6 days ago
Fibonacci
ffelixm
38
6 days ago
Fibonacci
b-illy
🥉
46
6 days ago
Fibonacci
b-illy
🥇
69
6 days ago
Fibonacci
error256
71
6 days ago
Fibonacci
fuzzylojik-golf
21
6 days ago
Fibonacci
Mukundan314
74
6 days ago
Fibonacci
Mukundan314
🥉
46
6 days ago
Fibonacci
fuzzylojik-golf
🥉
46
6 days ago
Fibonacci
fuzzylojik-golf
16
6 days ago
Fibonacci
Lv0Sys
67
6 days ago
Fibonacci
Lv0Sys
34
6 days ago
Fibonacci
Lv0Sys
49
6 days ago
Fibonacci
Lv0Sys
38
6 days ago
Fibonacci
Lv0Sys
73
6 days ago
Fibonacci
noescareno
106
7 days ago
Fibonacci
Shanethegamer
136
7 days ago
Fibonacci
fuzzylojik-golf
36
7 days ago
Fibonacci
Lv0Sys
52
7 days ago
Fibonacci
cmumme
46
7 days ago
Fibonacci
fuzzylojik-golf
36
7 days ago
Fibonacci
Lv0Sys
38
7 days ago
Fibonacci
Lv0Sys
33
7 days ago
Fibonacci
Lv0Sys
34
7 days ago
Fibonacci
Shanethegamer
15
8 days ago
Fibonacci
Shanethegamer
58
8 days ago
Fibonacci
fuzzylojik-golf
79
8 days ago
Fibonacci
AMG3141
144
8 days ago
Fibonacci
zhaohm14
🥇
36
8 days ago
Fibonacci
fuzzylojik-golf
🥇
43
9 days ago
Fibonacci
fuzzylojik-golf
🥇
33
9 days ago
Fibonacci
DialFrost
82
9 days ago