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
Time
Submitted
Inventory Sequence
mossiegoat
130
15ms
38 mins ago
Inventory Sequence
KatieLG
3,644
184ms
13 hours ago
Inventory Sequence
iczelia
66
11ms
40 hours ago
Inventory Sequence
iczelia
66
39ms
40 hours ago
Inventory Sequence
dokutan
2,636
23ms
2 days ago
Inventory Sequence
Babafaba
71
444ms
3 days ago
Inventory Sequence
Babafaba
72
17ms
3 days ago
Inventory Sequence
CaedenHarper
114
369ms
4 days ago
Inventory Sequence
dokutan
1,138
1,662ms
4 days ago
Inventory Sequence
KatieLG
61
369ms
5 days ago
Inventory Sequence
KatieLG
61
36ms
5 days ago
Inventory Sequence
Alex-x90
67
2ms
6 days ago
Inventory Sequence
snoozingnewt
90
100ms
7 days ago
Inventory Sequence
albanian-laundromat
177
1,412ms
10 days ago
Inventory Sequence
Babafaba
106
3,820ms
10 days ago
Inventory Sequence
Babafaba
78
2ms
10 days ago
Inventory Sequence
snoozingnewt
101
89ms
11 days ago
Inventory Sequence
snoozingnewt
68
863ms
11 days ago
Inventory Sequence
snoozingnewt
219
27ms
11 days ago
Inventory Sequence
snoozingnewt
122
5ms
11 days ago
Inventory Sequence
snoozingnewt
106
108ms
11 days ago
Inventory Sequence
snoozingnewt
182
1,161ms
11 days ago
Inventory Sequence
snoozingnewt
105
49ms
11 days ago
Inventory Sequence
snoozingnewt
113
2,537ms
11 days ago
Inventory Sequence
snoozingnewt
167
2,108ms
11 days ago
Inventory Sequence
snoozingnewt
125
463ms
11 days ago
Inventory Sequence
snoozingnewt
138
18ms
11 days ago
Inventory Sequence
snoozingnewt
76
10ms
11 days ago
Inventory Sequence
snoozingnewt
307
55ms
11 days ago
Inventory Sequence
snoozingnewt
133
159ms
11 days ago
Inventory Sequence
snoozingnewt
130
114ms
11 days ago
Inventory Sequence
snoozingnewt
116
10ms
11 days ago
Inventory Sequence
snoozingnewt
97
2ms
11 days ago
Inventory Sequence
snoozingnewt
90
44ms
11 days ago
Inventory Sequence
snoozingnewt
55
2ms
11 days ago
Inventory Sequence
snoozingnewt
259
65ms
11 days ago
Inventory Sequence
snoozingnewt
108
7ms
11 days ago
Inventory Sequence
snoozingnewt
86
131ms
11 days ago
Inventory Sequence
snoozingnewt
54
3ms
11 days ago
Inventory Sequence
snoozingnewt
127
123ms
11 days ago
Inventory Sequence
snoozingnewt
133
311ms
11 days ago
Inventory Sequence
snoozingnewt
86
2,642ms
11 days ago
Inventory Sequence
snoozingnewt
84
2ms
11 days ago
Inventory Sequence
snoozingnewt
157
449ms
11 days ago
Inventory Sequence
snoozingnewt
130
4ms
11 days ago
Inventory Sequence
snoozingnewt
140
382ms
11 days ago
Inventory Sequence
snoozingnewt
66
11ms
11 days ago
Inventory Sequence
snoozingnewt
162
2,774ms
11 days ago
Inventory Sequence
snoozingnewt
105
161ms
11 days ago
Inventory Sequence
kumavale
🥉
98
149ms
12 days ago
Inventory Sequence
snoozingnewt
62
435ms
14 days ago
Inventory Sequence
snoozingnewt
62
46ms
14 days ago
Inventory Sequence
snoozingnewt
45
43ms
14 days ago
Inventory Sequence
HumanoidCPU
2,631
3ms
18 days ago
Inventory Sequence
stefangimmillaro
89
363ms
19 days ago
Inventory Sequence
CaedenHarper
114
397ms
19 days ago
Inventory Sequence
emgordon154
🥉
168
879ms
20 days ago
Inventory Sequence
jacekwladzinski
70
27ms
21 days ago
Inventory Sequence
KasperKivimaeki
116
294ms
21 days ago
Inventory Sequence
luuumine
95
56ms
21 days ago
Inventory Sequence
copy
32
3ms
22 days ago
Inventory Sequence
namelessiw
🥉
88
435ms
22 days ago
Inventory Sequence
maweowo
36
12ms
23 days ago
Inventory Sequence
matejmatik123
147
933ms
23 days ago
Inventory Sequence
Schmitt-Very-Cool
176
448ms
24 days ago
Inventory Sequence
Shanethegamer
3,676
1,780ms
26 days ago
Inventory Sequence
albanian-laundromat
205
14ms
26 Sep 2025
Inventory Sequence
JayXon
🥇
87
480ms
26 Sep 2025
Inventory Sequence
sean-niemann
🥇
87
449ms
26 Sep 2025
Inventory Sequence
DialFrost
91
538ms
26 Sep 2025
Inventory Sequence
nwellnhof
🥉
88
474ms
25 Sep 2025
Inventory Sequence
Shanethegamer
94
497ms
25 Sep 2025
Inventory Sequence
dokutan
1,075
520ms
24 Sep 2025
Inventory Sequence
KatieLG
2,670
458ms
24 Sep 2025
Inventory Sequence
albanian-laundromat
56
942ms
22 Sep 2025