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
Chars
Time
Submitted
Musical Chords
pengu1n-master
503
20ms
10 hours ago
Musical Chords
plcc0
116
48ms
12 hours ago
Musical Chords
snoozingnewt
🥉
373
229ms
28 hours ago
Musical Chords
acotis
🥈
204
226ms
29 hours ago
Musical Chords
dokutan
276
65ms
2 days ago
Musical Chords
JOrE20
498
1,120ms
2 days ago
Musical Chords
JOrE20
263
11ms
2 days ago
Musical Chords
JOrE20
4,944
250ms
3 days ago
Musical Chords
sean-niemann
🥈
192
381ms
5 days ago
Musical Chords
sean-niemann
101
1,369ms
5 days ago
Musical Chords
sean-niemann
93
422ms
5 days ago
Musical Chords
sean-niemann
100
22ms
5 days ago
Musical Chords
sean-niemann
🥈
74
39ms
5 days ago
Musical Chords
edsrzf
💎
175
9ms
7 days ago
Musical Chords
rucin93
💎
209
6ms
20 days ago
Musical Chords
edsrzf
95
139ms
24 days ago
Musical Chords
HumanoidCPU
475
461ms
14 Jan 2026
Musical Chords
CaedenHarper
312
40ms
12 Jan 2026
Musical Chords
HumanoidCPU
437
390ms
12 Jan 2026
Musical Chords
KatieLG
4,847
10ms
11 Jan 2026
Musical Chords
HPWiz
💎
98
1,874ms
4 Jan 2026
Musical Chords
CornerMercury
109
13ms
31 Dec 2025
Musical Chords
IISResetMe
353
1,839ms
30 Dec 2025
Musical Chords
dokutan
268
20ms
26 Dec 2025
Musical Chords
dokutan
268
559ms
26 Dec 2025
Musical Chords
blaztoma
💎
332
42ms
25 Dec 2025
Musical Chords
blaztoma
147
11ms
25 Dec 2025
Musical Chords
edsrzf
💎
175
122ms
23 Dec 2025
Musical Chords
blaztoma
🥈
195
116ms
23 Dec 2025
Musical Chords
blaztoma
🥉
370
27ms
21 Dec 2025
Musical Chords
AlephSquirrel
68
6ms
18 Dec 2025
Musical Chords
gigaprofisi
445
10ms
17 Dec 2025
Musical Chords
blaztoma
🥉
231
7ms
14 Dec 2025
Musical Chords
JOrE20
4,944
1,427ms
10 Dec 2025
Musical Chords
JOrE20
1,298
482ms
10 Dec 2025
Musical Chords
snoozingnewt
122
414ms
6 Dec 2025
Musical Chords
snoozingnewt
126
19ms
6 Dec 2025
Musical Chords
Lv0Sys
162
38ms
5 Dec 2025
Musical Chords
Lv0Sys
234
19ms
5 Dec 2025
Musical Chords
JOrE20
277
13ms
4 Dec 2025
Musical Chords
anter69
115
21ms
4 Dec 2025
Musical Chords
anter69
103
40ms
4 Dec 2025
Musical Chords
FortuiteMan
257
19ms
1 Dec 2025
Musical Chords
KatieLG
14,229
90ms
30 Nov 2025
Musical Chords
h3ra993huskp
501
522ms
30 Nov 2025
Musical Chords
ndren
141
14ms
26 Nov 2025
Musical Chords
AidanWalter
1,984
1,584ms
26 Nov 2025
Musical Chords
AidanWalter
2,281
230ms
26 Nov 2025
Musical Chords
AidanWalter
2,139
523ms
26 Nov 2025
Musical Chords
Kacarott
🥈
235
68ms
24 Nov 2025
Musical Chords
edsrzf
💎
150
7ms
24 Nov 2025
Musical Chords
edsrzf
💎
172
10ms
24 Nov 2025
Musical Chords
edsrzf
🥈
286
43ms
24 Nov 2025
Musical Chords
edsrzf
💎
180
22ms
24 Nov 2025
Musical Chords
kg583
💎
220
208ms
24 Nov 2025
Musical Chords
edsrzf
💎
103
1,202ms
23 Nov 2025
Musical Chords
edsrzf
363
280ms
23 Nov 2025
Musical Chords
KatieLG
5,673
5ms
21 Nov 2025
Musical Chords
snoozingnewt
329
161ms
20 Nov 2025
Musical Chords
emgordon154
72
67ms
17 Nov 2025
Musical Chords
HPWiz
🥇
49
3ms
17 Nov 2025
Musical Chords
Yewzir
🥉
1,003
2,373ms
14 Nov 2025
Musical Chords
albanian-laundromat
💎
337
73ms
13 Nov 2025
Musical Chords
albanian-laundromat
🥈
110
1,200ms
13 Nov 2025
Musical Chords
tomh1012
533
466ms
12 Nov 2025
Musical Chords
Ralac07
1,130
13ms
12 Nov 2025
Musical Chords
bitsandbeyond
137
34ms
11 Nov 2025
Musical Chords
bitsandbeyond
180
465ms
11 Nov 2025
Musical Chords
bitsandbeyond
163
11ms
11 Nov 2025
Musical Chords
bitsandbeyond
🥉
257
320ms
11 Nov 2025
Musical Chords
bitsandbeyond
213
500ms
11 Nov 2025
Musical Chords
bitsandbeyond
143
10ms
11 Nov 2025
Musical Chords
Adix-null
1,713
522ms
10 Nov 2025
Musical Chords
lynn
🥉
216
203ms
9 Nov 2025
Musical Chords
MeWhenI
🥈
528
1,696ms
7 Nov 2025
Musical Chords
MeWhenI
298
512ms
7 Nov 2025
Musical Chords
dokutan
818
434ms
7 Nov 2025
Musical Chords
albanian-laundromat
🥈
213
5ms
6 Nov 2025
Musical Chords
albanian-laundromat
111
409ms
6 Nov 2025
Musical Chords
albanian-laundromat
116
12ms
6 Nov 2025