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
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
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
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
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
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
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
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
Erlang
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
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
Erlang
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
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
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
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
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Submitted
Musical Chords
snoozingnewt
429
43 hours ago
Musical Chords
CaedenHarper
523
3 days ago
Musical Chords
KatieLG
131
4 days ago
Musical Chords
albanian-laundromat
🥈
388
4 days ago
Musical Chords
SirBogman
💎
247
4 days ago
Musical Chords
stefangimmillaro
🥈
207
4 days ago
Musical Chords
qpwoeirut
135
5 days ago
Musical Chords
mossiegoat
257
7 days ago
Musical Chords
KatieLG
131
7 days ago
Musical Chords
KatieLG
162
7 days ago
Musical Chords
KatieLG
218
7 days ago
Musical Chords
emgordon154
💎
511
7 days ago
Musical Chords
blaztoma
222
8 days ago
Musical Chords
CaedenHarper
303
8 days ago
Musical Chords
CaedenHarper
325
8 days ago
Musical Chords
BREMAUCY
318
9 days ago
Musical Chords
jerrandolph
641
9 days ago
Musical Chords
snoozingnewt
413
10 days ago
Musical Chords
snoozingnewt
213
12 days ago
Musical Chords
BREMAUCY
3,875
13 days ago
Musical Chords
BREMAUCY
1,321
13 days ago
Musical Chords
JayXon
💎
160
13 days ago
Musical Chords
sean-niemann
🥉
323
15 days ago
Musical Chords
KatieLG
5,705
16 days ago
Musical Chords
InigoK
223
17 days ago
Musical Chords
albanian-laundromat
💎
134
18 days ago
Musical Chords
BREMAUCY
648
18 days ago
Musical Chords
albanian-laundromat
135
24 days ago
Musical Chords
MeWhenI
🥉
299
25 days ago
Musical Chords
CaedenHarper
🥈
192
26 days ago
Musical Chords
KatieLG
🥈
22,503
26 days ago
Musical Chords
snoozingnewt
217
11 Sep 2025
Musical Chords
snoozingnewt
🥉
387
11 Sep 2025
Musical Chords
albanian-laundromat
💎
342
7 Sep 2025
Musical Chords
Yax42
165
6 Sep 2025
Musical Chords
blaztoma
817
6 Sep 2025
Musical Chords
blaztoma
928
6 Sep 2025
Musical Chords
blaztoma
683
6 Sep 2025
Musical Chords
aksyristos
443
3 Sep 2025
Musical Chords
commandblockguy
241
1 Sep 2025
Musical Chords
CaedenHarper
363
31 Aug 2025
Musical Chords
andrewjc2000
310
26 Aug 2025
Musical Chords
pardouin
🥉
79
21 Aug 2025
Musical Chords
Yax42
149
20 Aug 2025
Musical Chords
AdrienHache
173
20 Aug 2025
Musical Chords
namelessiw
203
8 Aug 2025
Musical Chords
FlorianCassayre
251
5 Aug 2025
Musical Chords
RaBa21
198
1 Aug 2025
Musical Chords
Zhenyu-Bo
1,139
1 Aug 2025
Musical Chords
pardouin
🥈
97
31 Jul 2025
Musical Chords
rucin93
💎
211
28 Jul 2025
Musical Chords
edsrzf
388
24 Jul 2025
Musical Chords
ryyyn
165
23 Jul 2025
Musical Chords
JayXon
💎
149
23 Jul 2025
Musical Chords
acollett89
462
18 Jul 2025
Musical Chords
ndren
149
14 Jul 2025
Musical Chords
Flekay
457
11 Jul 2025
Musical Chords
FortuiteMan
503
9 Jul 2025
Musical Chords
albanian-laundromat
🥈
257
6 Jul 2025
Musical Chords
ndren
🥈
15,791
3 Jul 2025
Musical Chords
4atj
115
29 Jun 2025
Musical Chords
Natanaelel
319
28 Jun 2025
Musical Chords
acotis
🥈
237
23 Jun 2025
Musical Chords
bitsandbeyond
💎
86
22 Jun 2025
Musical Chords
dokutan
695
22 Jun 2025
Musical Chords
dokutan
845
22 Jun 2025
Musical Chords
dokutan
735
22 Jun 2025
Musical Chords
ovs-code
112
20 Jun 2025
Musical Chords
ovs-code
123
20 Jun 2025
Musical Chords
ovs-code
75
20 Jun 2025
Musical Chords
Mabeloid
270
10 Jun 2025
Musical Chords
Seek64
131
5 Jun 2025
Musical Chords
SirBogman
💎
247
3 Jun 2025
Musical Chords
rucin93
🥈
104
31 May 2025
Musical Chords
rucin93
495
31 May 2025