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
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
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
ArkScript
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
ArkScript
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
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
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
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
Dyadic-Device
42
208ms
19 hours ago
Fibonacci
Emutis
68
195ms
11 days ago
Fibonacci
isenschmid
30
225ms
13 days ago
Fibonacci
Murphy4444
30
221ms
13 days ago
Fibonacci
NoneTheFewer
64
250ms
26 days ago
Fibonacci
albanian-laundromat
28
199ms
26 Dec 2025
Fibonacci
DialFrost
🥇
27
278ms
18 Dec 2025
Fibonacci
KasperKivimaeki
44
236ms
18 Dec 2025
Fibonacci
DelaneyJM
35
231ms
17 Dec 2025
Fibonacci
REOScotte
31
201ms
9 Dec 2025
Fibonacci
Andrey2001
43
233ms
25 Nov 2025
Fibonacci
Zach1031
65
260ms
23 Nov 2025
Fibonacci
emgordon154
37
250ms
20 Nov 2025
Fibonacci
solisolu
34
225ms
18 Nov 2025
Fibonacci
bitsandbeyond
28
232ms
4 Nov 2025
Fibonacci
MeddyBou
253
227ms
17 Oct 2025
Fibonacci
snoozingnewt
29
234ms
4 Oct 2025
Fibonacci
Maximizer02
63
230ms
17 Sep 2025
Fibonacci
blaztoma
35
282ms
26 Aug 2025
Fibonacci
CaedenHarper
133
237ms
16 Aug 2025
Fibonacci
t3hcr
101
241ms
1 Jun 2025
Fibonacci
Lv0Sys
33
246ms
30 May 2025
Fibonacci
plcc0
30
236ms
21 Apr 2025
Fibonacci
SwordF-Official
65
233ms
11 Apr 2025
Fibonacci
Ripick
35
229ms
7 Mar 2025
Fibonacci
sean-niemann
28
273ms
26 Feb 2025
Fibonacci
desecaw13
51
237ms
24 Jan 2025
Fibonacci
BSharp2217
57
238ms
11 Jan 2025
Fibonacci
USSChris
48
260ms
27 Dec 2024
Fibonacci
JayXon
28
252ms
15 Dec 2024
Fibonacci
5quiwyrm
28
253ms
4 Dec 2024
Fibonacci
madeforlosers
53
250ms
22 Nov 2024
Fibonacci
Unknownuserfrommars
45
251ms
20 Nov 2024
Fibonacci
FortuiteMan
36
240ms
8 Oct 2024
Fibonacci
pardouin
🥇
27
241ms
22 Sep 2024
Fibonacci
Mabeloid
135
234ms
18 Sep 2024
Fibonacci
dokutan
44
264ms
27 Jul 2024
Fibonacci
Flobois
41
251ms
23 Jul 2024
Fibonacci
cingulataluke
57
235ms
3 Jun 2024
Fibonacci
HumanoidCPU
133
218ms
18 May 2024
Fibonacci
error256
37
241ms
11 May 2024
Fibonacci
israem
35
235ms
6 May 2024
Fibonacci
resoNathan
61
219ms
3 May 2024
Fibonacci
corbob
36
226ms
3 May 2024
Fibonacci
JPRuskin
49
236ms
24 Apr 2024
Fibonacci
grey0ut
29
260ms
9 Apr 2024
Fibonacci
Yewzir
🥇
27
247ms
8 Apr 2024
Fibonacci
duckyluuk
35
227ms
28 Mar 2024
Fibonacci
neel11235813
30
222ms
26 Mar 2024
Fibonacci
dcgjb
28
218ms
16 Jan 2024
Fibonacci
SirBogman
29
245ms
8 Jan 2024
Fibonacci
epic-programmer-guy
57
263ms
29 Dec 2023
Fibonacci
kkoenig
35
229ms
22 Dec 2023
Fibonacci
Msleizak
35
241ms
20 Dec 2023
Fibonacci
ovs-code
28
236ms
13 Dec 2023
Fibonacci
janbehrens
30
235ms
3 Dec 2023
Fibonacci
cmkb3
37
250ms
30 Nov 2023
Fibonacci
Feniske
28
243ms
7 Nov 2023
Fibonacci
HCRitter
44
226ms
16 Oct 2023
Fibonacci
MaxCastella
31
260ms
13 Oct 2023
Fibonacci
eiburns
49
243ms
7 Sep 2023
Fibonacci
christensendaniel
142
218ms
26 Aug 2023
Fibonacci
jfrmilner
37
251ms
13 Aug 2023
Fibonacci
Pyro569
71
241ms
30 Jul 2023
Fibonacci
Adix-null
59
247ms
4 Jul 2023
Fibonacci
TaserTheFox
36
233ms
7 Jun 2023
Fibonacci
daneabernathy
80
246ms
12 May 2023
Fibonacci
harperse
49
265ms
4 May 2023
Fibonacci
kenmich
60
231ms
3 May 2023
Fibonacci
povce
64
234ms
7 Apr 2023
Fibonacci
Weishaupt
74
254ms
22 Mar 2023
Fibonacci
Steffan153
28
220ms
16 Mar 2023
Fibonacci
CheeseCake628
53
243ms
11 Mar 2023
Fibonacci
duckgoop
39
252ms
9 Mar 2023
Fibonacci
ashtraypettingzoo
56
231ms
16 Feb 2023
Fibonacci
Skwerl23
39
277ms
6 Feb 2023
Fibonacci
sojumasterGA
38
233ms
31 Jan 2023
Fibonacci
MeWhenI
28
283ms
29 Jan 2023
Fibonacci
krcs
36
228ms
22 Jan 2023
Fibonacci
Betuaredead
42
240ms
4 Jan 2023