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
Gray Code Decoder
Gray Code Encoder
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)
Taxicab Numbers
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
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
All Languages
><>
ALGOL 68
ArkScript
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
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
ArkScript
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
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
Gray Code Decoder
Gray Code Encoder
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)
Taxicab Numbers
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
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Fibonacci
Shanethegamer
🥇
43
1,444ms
11 days ago
Fibonacci
JayXon
🥇
43
1,515ms
14 days ago
Fibonacci
ovs-code
🥇
43
1,466ms
14 days ago
Fibonacci
pardouin
46
1,507ms
14 days ago
Fibonacci
plcc0
46
1,342ms
14 days ago
Fibonacci
Steffan153
🥇
43
1,905ms
15 days ago
Fibonacci
DialFrost
46
1,540ms
15 days ago
Fibonacci
edsrzf
🥇
43
1,477ms
15 days ago
Fibonacci
Matter1024
63
1,385ms
31 Mar 2026
Fibonacci
Rambso
124
1,372ms
17 Feb 2026
Fibonacci
Andrey2001
70
1,392ms
23 Jan 2026
Fibonacci
prestosilver
234
1,479ms
23 Jan 2026
Fibonacci
Zach1031
142
1,411ms
15 Nov 2025
Fibonacci
snoozingnewt
63
1,364ms
8 Oct 2025
Fibonacci
pixelated-pup
76
1,520ms
6 Oct 2025
Fibonacci
Mikey-Beep
62
1,512ms
4 Oct 2025
Fibonacci
albanian-laundromat
79
1,433ms
30 Sep 2025
Fibonacci
error256
44
1,496ms
26 Jul 2025
Fibonacci
heanyang1
82
1,464ms
23 Apr 2025
Fibonacci
CaedenHarper
141
1,357ms
25 Jan 2025
Fibonacci
madeforlosers
98
1,545ms
21 Nov 2024
Fibonacci
Herbert00709
143
1,403ms
31 Oct 2024
Fibonacci
dokutan
63
1,509ms
14 Oct 2024
Fibonacci
JesseNoEyes
153
1,549ms
25 Sep 2024
Fibonacci
Mabeloid
202
1,421ms
18 Sep 2024
Fibonacci
emgordon154
130
1,513ms
3 Aug 2024
Fibonacci
Maximizer02
69
1,464ms
1 Aug 2024
Fibonacci
hacker112
102
1,443ms
9 Jul 2024
Fibonacci
jtaxen
160
1,472ms
29 May 2024
Fibonacci
HumanoidCPU
141
1,515ms
18 May 2024
Fibonacci
epic-programmer-guy
79
1,564ms
12 May 2024
Fibonacci
azure-blondon
181
1,457ms
5 May 2024
Fibonacci
neel11235813
64
1,440ms
26 Mar 2024
Fibonacci
mathisfun271
89
1,689ms
19 Feb 2024
Fibonacci
kkoenig
235
1,536ms
22 Dec 2023
Fibonacci
Eugen-str
118
1,535ms
19 Nov 2023
Fibonacci
msbranicky
83
1,456ms
23 Sep 2023
Fibonacci
eiburns
122
1,402ms
8 Sep 2023
Fibonacci
Adix-null
214
1,439ms
30 Jul 2023
Fibonacci
MeWhenI
46
1,514ms
7 Jun 2023
Fibonacci
Yewzir
63
1,434ms
6 May 2023
Fibonacci
CheeseCake628
116
1,568ms
11 Mar 2023
Fibonacci
ze-h
53
1,545ms
13 Feb 2023
Fibonacci
scpchicken
79
1,506ms
10 Jan 2023
Fibonacci
Betuaredead
72
1,493ms
4 Jan 2023
Fibonacci
retrohun
170
1,496ms
27 Dec 2022
Fibonacci
oceko
113
1,429ms
26 Nov 2022
Fibonacci
KatieLG-Transpiler
141
1,390ms
24 Jun 2022
Fibonacci
Noah-Fox
196
1,496ms
1 Jun 2022
Fibonacci
martinnorling
117
1,494ms
11 Apr 2022
Fibonacci
Natanaelel
76
1,553ms
22 Mar 2022
Fibonacci
MichaelMBradley
74
1,429ms
21 Mar 2022
Fibonacci
CedricGebistorf
108
1,549ms
13 Mar 2022
Fibonacci
dillon-duncando
78
1,555ms
26 Nov 2021
Fibonacci
owen-c-parker
79
1,429ms
23 Nov 2021
Fibonacci
mokymok
172
1,461ms
9 Nov 2021
Fibonacci
bac0id
128
1,462ms
18 Oct 2021
Fibonacci
NewDefectus
100
1,513ms
8 Oct 2021
Fibonacci
elizj3
80
1,439ms
4 Jul 2021
Fibonacci
c0d3-4-F00d
99
1,518ms
25 May 2021
Fibonacci
MatheusAvellar
64
1,441ms
7 May 2021
Fibonacci
gradbot
51
1,465ms
20 Mar 2021
Fibonacci
BashkaMen
113
1,548ms
11 Mar 2021
Fibonacci
Nexilis
62
1,567ms
17 Jan 2021
Fibonacci
BBoehm
63
1,507ms
7 Jan 2021
Fibonacci
janbehrens
98
1,532ms
2 Jan 2021
Fibonacci
KatieLG
68
1,461ms
30 Nov 2020
Fibonacci
JDiLenarda
51
1,445ms
1 Nov 2020
Fibonacci
yzhs
64
1,475ms
18 Oct 2020
Fibonacci
marcin7Cd
52
1,470ms
11 Oct 2020
Fibonacci
adacola
51
1,533ms
27 Jun 2020
Fibonacci
daviddostal
56
1,474ms
15 May 2020
Fibonacci
fuchen
50
1,536ms
12 May 2020
Fibonacci
brianberns
65
1,463ms
10 May 2020