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
Bytes
Time
Submitted
Musical Chords
sean-niemann
148
20ms
2 days ago
Musical Chords
CaedenHarper
317
40ms
26 days ago
Musical Chords
CornerMercury
167
33ms
31 Dec 2025
Musical Chords
dokutan
486
19ms
26 Dec 2025
Musical Chords
blaztoma
148
11ms
25 Dec 2025
Musical Chords
snoozingnewt
202
18ms
6 Dec 2025
Musical Chords
Lv0Sys
239
19ms
5 Dec 2025
Musical Chords
anter69
180
12ms
4 Dec 2025
Musical Chords
JOrE20
503
13ms
2 Dec 2025
Musical Chords
FortuiteMan
262
19ms
1 Dec 2025
Musical Chords
ndren
231
12ms
26 Nov 2025
Musical Chords
bitsandbeyond
164
11ms
11 Nov 2025
Musical Chords
albanian-laundromat
180
11ms
6 Nov 2025
Musical Chords
Babafaba
453
22ms
29 Oct 2025
Musical Chords
ryyyn
155
36ms
28 Oct 2025
Musical Chords
emgordon154
177
16ms
26 Oct 2025
Musical Chords
robin-scragg
399
19ms
17 Oct 2025
Musical Chords
davecame
257
13ms
15 Oct 2025
Musical Chords
qpwoeirut
249
12ms
4 Oct 2025
Musical Chords
KatieLG
211
11ms
3 Oct 2025
Musical Chords
BREMAUCY
347
19ms
1 Oct 2025
Musical Chords
InigoK
228
29ms
23 Sep 2025
Musical Chords
aksyristos
472
26ms
3 Sep 2025
Musical Chords
andrewjc2000
311
14ms
26 Aug 2025
Musical Chords
FlorianCassayre
403
11ms
5 Aug 2025
Musical Chords
RaBa21
346
20ms
1 Aug 2025
Musical Chords
Zhenyu-Bo
1,168
16ms
1 Aug 2025
Musical Chords
Flekay
486
19ms
11 Jul 2025
Musical Chords
4atj
🥇
116
22ms
29 Jun 2025
Musical Chords
ovs-code
124
18ms
20 Jun 2025
Musical Chords
Mabeloid
273
12ms
10 Jun 2025
Musical Chords
Seek64
132
18ms
5 Jun 2025
Musical Chords
HumanoidCPU
270
12ms
5 May 2025
Musical Chords
MeWhenI
198
53ms
15 Apr 2025
Musical Chords
Pyroan
240
19ms
15 Mar 2025
Musical Chords
commandz0
257
12ms
8 Mar 2025
Musical Chords
ZakkkkAttackkkk
231
57ms
19 Feb 2025
Musical Chords
kevinnaviapaiva
1,512
13ms
15 Feb 2025
Musical Chords
madex
355
19ms
4 Feb 2025
Musical Chords
croc54
315
19ms
15 Jan 2025
Musical Chords
AidanWalter
2,522
14ms
3 Jan 2025
Musical Chords
ahmetdemirag
213
12ms
25 Nov 2024
Musical Chords
neihousaigaai
326
12ms
24 Nov 2024
Musical Chords
lifthrasiir
163
33ms
19 Nov 2024
Musical Chords
wh3n3v3r
414
22ms
18 Nov 2024
Musical Chords
roguh
194
13ms
18 Oct 2024
Musical Chords
mathisfun271
389
34ms
14 Oct 2024
Musical Chords
alemelis
415
18ms
12 Sep 2024
Musical Chords
kg583
165
31ms
15 Jul 2024
Musical Chords
duckyluuk
204
34ms
15 Jul 2024
Musical Chords
mbittner20
291
13ms
8 Jul 2024
Musical Chords
jfallon1997
392
23ms
24 Jun 2024
Musical Chords
pardouin
123
11ms
10 Jun 2024
Musical Chords
HPWiz
🥇
116
22ms
27 May 2024
Musical Chords
JayXon
🥉
117
21ms
25 May 2024
Musical Chords
bricknellj
151
18ms
23 May 2024
Musical Chords
DialFrost
246
19ms
20 May 2024
Musical Chords
5cw
136
14ms
29 Apr 2024
Musical Chords
SB-945
283
12ms
11 Mar 2024
Musical Chords
scpchicken
301
61ms
20 Feb 2024
Musical Chords
ridingqwerty
329
18ms
7 Feb 2024
Musical Chords
m42km
359
22ms
4 Feb 2024
Musical Chords
AlephSquirrel
135
13ms
31 Jan 2024
Musical Chords
yuchuehw
486
21ms
22 Jan 2024
Musical Chords
MarcMush
452
20ms
18 Jan 2024
Musical Chords
neel11235813
247
25ms
24 Nov 2023
Musical Chords
prplz
255
18ms
22 Oct 2023
Musical Chords
adamnielson42
326
13ms
3 Oct 2023
Musical Chords
eiburns
339
13ms
21 Sep 2023
Musical Chords
msbranicky
388
14ms
7 Sep 2023
Musical Chords
StefanHabel
245
18ms
29 Aug 2023
Musical Chords
jeff-at-tamer-dot-codes
267
17ms
23 Aug 2023
Musical Chords
yzhs
247
18ms
23 Jun 2023
Musical Chords
guilhem-roy
286
21ms
22 Jun 2023
Musical Chords
janbehrens
231
12ms
17 Jun 2023
Musical Chords
rucin93
941
13ms
21 May 2023
Musical Chords
CatsAreFluffy
320
19ms
4 Feb 2023
Musical Chords
SirBogman
127
17ms
30 Jan 2023
Musical Chords
za3k
419
15ms
31 Dec 2022
Musical Chords
stefangimmillaro
170
11ms
19 Dec 2022