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
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
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
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
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
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
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
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
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
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
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
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Morse Decoder
5cw
159
12 days ago
Morse Decoder
InigoK
262
14 days ago
Morse Decoder
ndren
241
17 days ago
Morse Decoder
Emutis
300
18 days ago
Morse Decoder
CaedenHarper
164
18 days ago
Morse Decoder
Zhenyu-Bo
603
20 days ago
Morse Decoder
4atj
133
20 days ago
Morse Decoder
BREMAUCY
185
27 days ago
Morse Decoder
Upload-and-View
749
27 days ago
Morse Decoder
SirBogman
188
23 Jul 2025
Morse Decoder
mossiegoat
478
23 Jul 2025
Morse Decoder
KatieLG
345
19 Jul 2025
Morse Decoder
ryyyn
177
19 Jul 2025
Morse Decoder
RaBa21
378
18 Jul 2025
Morse Decoder
andrewjc2000
230
16 Jul 2025
Morse Decoder
YAJUE114514
1,791
14 Jul 2025
Morse Decoder
codewrite
411
12 Jul 2025
Morse Decoder
Flekay
247
11 Jul 2025
Morse Decoder
vgamula
356
8 Jul 2025
Morse Decoder
alabhyajindal
1,514
30 Jun 2025
Morse Decoder
Lv0Sys
381
10 Jun 2025
Morse Decoder
HumanoidCPU
1,256
25 May 2025
Morse Decoder
damoose717
1,119
24 May 2025
Morse Decoder
nooberitess
2,842
22 May 2025
Morse Decoder
kistlerf
202
19 May 2025
Morse Decoder
emgordon154
224
19 Apr 2025
Morse Decoder
albanian-laundromat
335
3 Apr 2025
Morse Decoder
jameswmccarty
241
7 Mar 2025
Morse Decoder
Pyroan
207
2 Mar 2025
Morse Decoder
CornerMercury
422
15 Feb 2025
Morse Decoder
Seek64
136
13 Feb 2025
Morse Decoder
kevinnaviapaiva
1,375
12 Feb 2025
Morse Decoder
sean-niemann
🥇
132
9 Feb 2025
Morse Decoder
dokutan
212
4 Feb 2025
Morse Decoder
CLOStrophobic
243
26 Jan 2025
Morse Decoder
kg583
171
12 Jan 2025
Morse Decoder
croc54
1,264
12 Jan 2025
Morse Decoder
Artemis21
182
10 Jan 2025
Morse Decoder
AidanWalter
1,613
3 Jan 2025
Morse Decoder
zt14427
1,227
27 Dec 2024
Morse Decoder
wh3n3v3r
229
18 Nov 2024
Morse Decoder
ahmetdemirag
203
18 Nov 2024
Morse Decoder
lifthrasiir
175
14 Nov 2024
Morse Decoder
JunkIce
480
12 Nov 2024
Morse Decoder
jatloe
1,327
23 Oct 2024
Morse Decoder
Stockoh
426
17 Oct 2024
Morse Decoder
dtbao20
287
1 Oct 2024
Morse Decoder
Mabeloid
254
12 Sep 2024
Morse Decoder
jared-hughes
138
11 Aug 2024
Morse Decoder
pardouin
🥇
132
8 Aug 2024
Morse Decoder
ovs-code
138
5 Aug 2024
Morse Decoder
Lydxn
134
2 Aug 2024
Morse Decoder
DialFrost
149
1 Aug 2024
Morse Decoder
bricknellj
152
31 Jul 2024
Morse Decoder
JayXon
🥇
132
31 Jul 2024
Morse Decoder
Steffan153
🥇
132
31 Jul 2024
Morse Decoder
MeWhenI
138
31 Jul 2024
Morse Decoder
Bulmenisaurus
172
30 Jul 2024
Morse Decoder
duckyluuk
146
26 Jul 2024
Morse Decoder
ComputerKWasTaken
1,304
10 Jul 2024
Morse Decoder
CutSandstone
446
5 Jul 2024
Morse Decoder
june410
472
5 Jun 2024
Morse Decoder
rollershutter
442
25 May 2024
Morse Decoder
madex
388
12 May 2024
Morse Decoder
jtaxen
1,164
28 Apr 2024
Morse Decoder
kewegmey
558
17 Apr 2024
Morse Decoder
davecame
291
15 Mar 2024
Morse Decoder
inverseLorentz
359
11 Mar 2024
Morse Decoder
SB-945
384
10 Mar 2024
Morse Decoder
mathisfun271
324
19 Feb 2024
Morse Decoder
neihousaigaai
330
14 Feb 2024
Morse Decoder
qwjhvbxi
368
12 Feb 2024
Morse Decoder
snoozingnewt
247
4 Feb 2024
Morse Decoder
mbittner20
277
21 Jan 2024
Morse Decoder
Pale-Vessel
1,254
10 Jan 2024