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
Bytes
Submitted
Cubes
CaedenHarper
322
116 mins ago
Cubes
InigoK
201
13 hours ago
Cubes
HumanoidCPU
4,109
3 days ago
Cubes
stefangimmillaro
🥈
279
4 days ago
Cubes
snoozingnewt
567
5 days ago
Cubes
emgordon154
140
6 days ago
Cubes
mossiegoat
260
7 days ago
Cubes
Yewzir
422
8 days ago
Cubes
ryyyn
195
8 days ago
Cubes
Shanethegamer
4,111
11 days ago
Cubes
Shanethegamer
4,265
11 days ago
Cubes
sean-niemann
🥈
187
12 days ago
Cubes
blaztoma
221
13 days ago
Cubes
Schmitt-Very-Cool
451
13 days ago
Cubes
albanian-laundromat
229
14 days ago
Cubes
sean-niemann
303
14 days ago
Cubes
nwellnhof
💎
222
15 days ago
Cubes
Shanethegamer
484
15 days ago
Cubes
dokutan
392
15 days ago
Cubes
KatieLG
4,148
15 days ago
Cubes
AnAwesomGuy
219
17 days ago
Cubes
AnAwesomGuy
343
18 days ago
Cubes
AnAwesomGuy
253
18 days ago
Cubes
AnAwesomGuy
305
18 days ago
Cubes
AnAwesomGuy
247
18 days ago
Cubes
albanian-laundromat
278
21 days ago
Cubes
Shanethegamer
4,109
21 days ago
Cubes
KasperKivimaeki
🥉
240
22 days ago
Cubes
qpwoeirut
238
24 days ago
Cubes
plopa1
420
24 days ago
Cubes
Yax42
216
25 days ago
Cubes
tomh1012
262
25 days ago
Cubes
tomh1012
328
25 days ago
Cubes
tomh1012
392
25 days ago
Cubes
edsrzf
💎
181
25 days ago
Cubes
CaedenHarper
🥉
189
25 days ago
Cubes
csharpython
281
26 days ago
Cubes
KatieLG
4,366
27 days ago
Cubes
dokutan
4,265
27 days ago
Cubes
kg583
194
27 days ago
Cubes
kg583
198
27 days ago
Cubes
albanian-laundromat
223
27 days ago
Cubes
dokutan
4,338
12 Sep 2025
Cubes
dokutan
🥉
4,216
12 Sep 2025
Cubes
dokutan
811
10 Sep 2025
Cubes
pardouin
165
10 Sep 2025
Cubes
albanian-laundromat
340
8 Sep 2025
Cubes
Yax42
🥉
239
8 Sep 2025
Cubes
KasperKivimaeki
🥉
289
2 Sep 2025
Cubes
JayXon
🥈
225
2 Sep 2025
Cubes
darkI33T
276
1 Sep 2025
Cubes
commandblockguy
214
1 Sep 2025
Cubes
CaedenHarper
260
31 Aug 2025
Cubes
MeWhenI
227
30 Aug 2025
Cubes
dokutan
351
29 Aug 2025
Cubes
imoxyg
393
29 Aug 2025
Cubes
Emutis
300
26 Aug 2025
Cubes
dev-kas
306
24 Aug 2025
Cubes
pardouin
189
20 Aug 2025
Cubes
HumanoidCPU
4,877
18 Aug 2025
Cubes
HumanoidCPU
4,643
18 Aug 2025
Cubes
HumanoidCPU
4,332
18 Aug 2025
Cubes
HumanoidCPU
4,224
18 Aug 2025
Cubes
HumanoidCPU
4,231
18 Aug 2025
Cubes
HumanoidCPU
4,217
18 Aug 2025
Cubes
HumanoidCPU
4,264
18 Aug 2025
Cubes
HumanoidCPU
4,239
18 Aug 2025
Cubes
HumanoidCPU
4,214
18 Aug 2025
Cubes
HumanoidCPU
4,110
18 Aug 2025
Cubes
HumanoidCPU
4,102
18 Aug 2025
Cubes
CaedenHarper
10,829
17 Aug 2025
Cubes
CaedenHarper
4,171
16 Aug 2025
Cubes
CaedenHarper
16,744
16 Aug 2025
Cubes
CaedenHarper
4,449
16 Aug 2025
Cubes
CaedenHarper
4,265
16 Aug 2025