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
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
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
Calendar
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
Multitap Input
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
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
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
Calendar
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
Multitap Input
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
Fibonacci
Andrey2001
49
40ms
17 days ago
Fibonacci
Zach1031
102
41ms
22 days ago
Fibonacci
snoozingnewt
94
55ms
10 Oct 2025
Fibonacci
CaedenHarper
60
39ms
26 Aug 2025
Fibonacci
albanian-laundromat
50
38ms
26 Aug 2025
Fibonacci
andrewjc2000
63
39ms
14 Jul 2025
Fibonacci
HumanoidCPU
509
41ms
30 Jun 2025
Fibonacci
ToE42
72
40ms
16 May 2025
Fibonacci
madeforlosers
64
40ms
21 Nov 2024
Fibonacci
dokutan
50
37ms
31 Oct 2024
Fibonacci
DialFrost
46
37ms
20 Oct 2024
Fibonacci
Anonymousellama21
63
40ms
9 Aug 2024
Fibonacci
emgordon154
71
38ms
26 Jul 2024
Fibonacci
hacker112
52
37ms
4 Jul 2024
Fibonacci
msbranicky
67
39ms
3 Jul 2024
Fibonacci
jtaxen
69
37ms
30 Mar 2024
Fibonacci
ashtraypettingzoo
64
38ms
21 Mar 2024
Fibonacci
roupiq
50
39ms
14 Mar 2024
Fibonacci
Herbert00709
50
38ms
1 Mar 2024
Fibonacci
mathisfun271
65
40ms
22 Feb 2024
Fibonacci
inverseLorentz
79
38ms
21 Feb 2024
Fibonacci
wlaud9
53
38ms
5 Feb 2024
Fibonacci
jared-hughes
54
38ms
3 Jan 2024
Fibonacci
marshallward
🥇
44
39ms
1 Jan 2024
Fibonacci
epic-programmer-guy
77
38ms
1 Jan 2024
Fibonacci
Shanethegamer
59
39ms
31 Dec 2023
Fibonacci
Verlio-H
50
39ms
23 Dec 2023
Fibonacci
Yewzir
53
39ms
21 Nov 2023
Fibonacci
charliegaming
69
39ms
3 Oct 2023
Fibonacci
Maximizer02
69
37ms
1 Oct 2023
Fibonacci
ovs-code
🥇
44
37ms
24 Aug 2023
Fibonacci
Adix-null
602
42ms
30 Jul 2023
Fibonacci
Euler-37
52
37ms
4 Jun 2023
Fibonacci
CheeseCake628
69
39ms
11 Mar 2023
Fibonacci
Steffan153
51
39ms
24 Jan 2023
Fibonacci
ivan-pi
50
38ms
23 Jan 2023
Fibonacci
retrohun
509
43ms
27 Dec 2022
Fibonacci
sm1lko
104
37ms
14 Dec 2022
Fibonacci
jhpaques
53
39ms
3 Dec 2022
Fibonacci
oceko
63
37ms
28 Nov 2022
Fibonacci
trist224
63
38ms
28 Nov 2022
Fibonacci
MeWhenI
46
38ms
14 Oct 2022
Fibonacci
stefangimmillaro
46
37ms
24 Sep 2022
Fibonacci
Noah-Fox
173
39ms
1 Jun 2022
Fibonacci
martinnorling
69
38ms
8 Feb 2022
Fibonacci
CedricGebistorf
69
38ms
4 Feb 2022
Fibonacci
btnlq
🥇
44
39ms
1 Feb 2022
Fibonacci
ZakkkkAttackkkk
46
39ms
28 Jan 2022
Fibonacci
scpchicken
160
41ms
22 Jan 2022
Fibonacci
orthoplex
69
37ms
22 Jan 2022
Fibonacci
Garklein
99
40ms
6 Jan 2022
Fibonacci
SirBogman
🥇
44
37ms
1 Jan 2022
Fibonacci
dillon-duncando
199
39ms
21 Dec 2021
Fibonacci
prplz
🥇
44
37ms
21 Dec 2021
Fibonacci
primo-ppcg
🥇
44
38ms
13 Dec 2021
Fibonacci
Carltoffel
56
38ms
29 Nov 2021
Fibonacci
Xwilarg
65
39ms
17 Nov 2021
Fibonacci
sech1p
86
39ms
30 Oct 2021
Fibonacci
bac0id
81
38ms
18 Oct 2021
Fibonacci
sisyphus-ppcg
🥇
44
38ms
16 Sep 2021
Fibonacci
raphaelimahorn
54
38ms
2 Sep 2021
Fibonacci
Lydxn
🥇
44
38ms
14 Jul 2021
Fibonacci
ytaki0801
65
37ms
19 Jun 2021
Fibonacci
Natanaelel
181
39ms
28 May 2021
Fibonacci
LucaArgentiUCF
46
38ms
28 Jan 2021
Fibonacci
GrayJoKing
49
39ms
17 Jan 2021
Fibonacci
jvdp1
67
39ms
25 Dec 2020
Fibonacci
BBoehm
94
39ms
23 Dec 2020
Fibonacci
KatieLG
82
39ms
30 Nov 2020
Fibonacci
marcin7Cd
46
39ms
11 Oct 2020
Fibonacci
cure-honey
46
40ms
1 May 2020
Fibonacci
Tine86
46
37ms
20 Apr 2020
Fibonacci
ashwinvis
129
39ms
18 Apr 2020