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
Chars
Time
Submitted
Morse Decoder
TheZwierzLF
346
661ms
2 days ago
Morse Decoder
TheZwierzLF
366
11ms
2 days ago
Morse Decoder
JOrE20
271
9ms
4 days ago
Morse Decoder
kg583
🥈
124
7ms
6 days ago
Morse Decoder
kg583
💎
155
6ms
6 days ago
Morse Decoder
NoneTheFewer
763
10ms
6 days ago
Morse Decoder
dokutan
🥉
334
3ms
7 days ago
Morse Decoder
IISResetMe
165
247ms
7 days ago
Morse Decoder
dokutan
🥈
764
108ms
7 days ago
Morse Decoder
blaztoma
💎
266
109ms
9 days ago
Morse Decoder
Lv0Sys
187
594ms
10 days ago
Morse Decoder
Lv0Sys
210
9ms
10 days ago
Morse Decoder
Lv0Sys
215
12ms
10 days ago
Morse Decoder
Lv0Sys
169
55ms
10 days ago
Morse Decoder
h3ra993huskp
253
810ms
10 days ago
Morse Decoder
FortuiteMan
221
10ms
10 days ago
Morse Decoder
snoozingnewt
123
396ms
12 days ago
Morse Decoder
snoozingnewt
127
12ms
12 days ago
Morse Decoder
Babafaba
210
396ms
17 days ago
Morse Decoder
Babafaba
210
10ms
17 days ago
Morse Decoder
GodlyProgrammer1
276
16ms
17 days ago
Morse Decoder
hiichbindermax
263
9ms
18 days ago
Morse Decoder
KatieLG
767
247ms
18 days ago
Morse Decoder
snoozingnewt
261
91ms
20 days ago
Morse Decoder
ryyyn
172
10ms
20 days ago
Morse Decoder
sean-niemann
💎
185
2ms
21 days ago
Morse Decoder
Yewzir
691
2,630ms
25 days ago
Morse Decoder
Emutis
281
14ms
26 days ago
Morse Decoder
ovs-code
💎
113
34ms
26 days ago
Morse Decoder
KasperKivimaeki
162
2ms
26 days ago
Morse Decoder
ovs-code
🥉
89
104ms
12 Nov 2025
Morse Decoder
DrakeSeteraO
276
10ms
10 Nov 2025
Morse Decoder
emgordon154
💎
52
53ms
10 Nov 2025
Morse Decoder
snoozingnewt
309
3ms
9 Nov 2025
Morse Decoder
dokutan
230
521ms
9 Nov 2025
Morse Decoder
MeWhenI
🥈
439
1,812ms
7 Nov 2025
Morse Decoder
MeWhenI
171
565ms
7 Nov 2025
Morse Decoder
dokutan
913
492ms
7 Nov 2025
Morse Decoder
CaedenHarper
324
9ms
6 Nov 2025
Morse Decoder
albanian-laundromat
🥉
128
862ms
4 Nov 2025
Morse Decoder
TJK-S
753
10ms
4 Nov 2025
Morse Decoder
snoozingnewt
326
499ms
4 Nov 2025
Morse Decoder
CornerMercury
110
18ms
3 Nov 2025
Morse Decoder
ndren
115
10ms
2 Nov 2025
Morse Decoder
luuumine
286
10ms
29 Oct 2025
Morse Decoder
CaedenHarper
762
305ms
28 Oct 2025
Morse Decoder
CaedenHarper
698
812ms
28 Oct 2025
Morse Decoder
CaedenHarper
849
347ms
28 Oct 2025
Morse Decoder
CaedenHarper
1,029
537ms
28 Oct 2025
Morse Decoder
blaztoma
155
3ms
22 Oct 2025
Morse Decoder
snoozingnewt
🥉
224
87ms
19 Oct 2025
Morse Decoder
blaztoma
203
10ms
14 Oct 2025
Morse Decoder
sean-niemann
81
57ms
12 Oct 2025
Morse Decoder
KatieLG
198
421ms
6 Oct 2025
Morse Decoder
stefangimmillaro
🥈
144
559ms
6 Oct 2025
Morse Decoder
plcc0
127
9ms
4 Oct 2025
Morse Decoder
Schmitt-Very-Cool
310
587ms
3 Oct 2025
Morse Decoder
antimon2
117
716ms
29 Sep 2025
Morse Decoder
JayXon
💎
140
591ms
26 Sep 2025
Morse Decoder
sean-niemann
🥉
145
561ms
24 Sep 2025
Morse Decoder
ovs-code
110
18ms
23 Sep 2025
Morse Decoder
AlephSquirrel
114
4ms
23 Sep 2025
Morse Decoder
albanian-laundromat
🥈
192
2ms
19 Sep 2025
Morse Decoder
tomh1012
415
367ms
17 Sep 2025
Morse Decoder
dokutan
1,351
20ms
16 Sep 2025
Morse Decoder
edsrzf
136
821ms
16 Sep 2025
Morse Decoder
KatieLG
198
10ms
15 Sep 2025
Morse Decoder
MeWhenI
148
806ms
15 Sep 2025
Morse Decoder
kaascevich
367
361ms
14 Sep 2025
Morse Decoder
dokutan
899
156ms
12 Sep 2025
Morse Decoder
sean-niemann
💎
190
3ms
10 Sep 2025
Morse Decoder
cros107
215
16ms
10 Sep 2025
Morse Decoder
dokutan
159
538ms
8 Sep 2025
Morse Decoder
dokutan
125
10ms
8 Sep 2025
Morse Decoder
dokutan
125
412ms
8 Sep 2025