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
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
ALGOL 68
ArkScript
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
APL
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
><>
ALGOL 68
ArkScript
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
APL
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
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Rule 110
Junebug2763
322
25ms
4 mins ago
Rule 110
madex
120
8ms
2 hours ago
Rule 110
jusaka
45
4ms
5 hours ago
Rule 110
Dominoscompute
194
7ms
12 hours ago
Rule 110
jusaka
120
263ms
37 hours ago
Rule 110
Dominoscompute
38
5ms
41 hours ago
Rule 110
Apfelvater
124
13ms
2 days ago
Rule 110
madeforlosers
90
21ms
3 days ago
Rule 110
vang1ong7ang
119
190ms
3 days ago
Rule 110
retrohun
🥉
98
2,317ms
4 days ago
Rule 110
jusaka
71
15ms
8 days ago
Rule 110
edsrzf
🥉
183
55ms
8 days ago
Rule 110
CaedenHarper
52
85ms
11 days ago
Rule 110
madeforlosers
127
15ms
11 days ago
Rule 110
edsrzf
🥉
122
36ms
12 days ago
Rule 110
GolfingSuccess
🥈
169
42ms
12 days ago
Rule 110
Steffan153
🥈
108
117ms
12 days ago
Rule 110
Steffan153
🥈
150
28ms
12 days ago
Rule 110
Steffan153
💎
158
40ms
12 days ago
Rule 110
Steffan153
🥇
58
441ms
13 days ago
Rule 110
Steffan153
🥇
59
13ms
13 days ago
Rule 110
KadinSchultz
157
19ms
15 days ago
Rule 110
prestosilver
161
372ms
16 days ago
Rule 110
2bular
🥈
43
44ms
16 days ago
Rule 110
dokutan
10,108
5ms
17 days ago
Rule 110
Andrey2001
159
15ms
17 days ago
Rule 110
Andrey2001
173
559ms
17 days ago
Rule 110
CaedenHarper
10,107
4ms
21 days ago
Rule 110
dokutan
1,429
274ms
21 days ago
Rule 110
emgordon154
174
10ms
21 days ago
Rule 110
GrayJoKing
🥇
87
9ms
26 days ago
Rule 110
Protothor
143
11ms
13 Mar 2026
Rule 110
edsrzf
🥇
87
9ms
13 Mar 2026
Rule 110
snoozingnewt
68
494ms
11 Mar 2026
Rule 110
snoozingnewt
68
17ms
11 Mar 2026
Rule 110
Steffan153
🥇
56
37ms
11 Mar 2026
Rule 110
zgialor-lab
132
12ms
10 Mar 2026
Rule 110
firegene
96
12ms
9 Mar 2026
Rule 110
StefanHabel
118
11ms
9 Mar 2026
Rule 110
denkyuu1
92
45ms
6 Mar 2026
Rule 110
bitsandbeyond
🥈
68
334ms
2 Mar 2026
Rule 110
Natanaelel
26
39ms
27 Feb 2026
Rule 110
2bular
25
35ms
27 Feb 2026
Rule 110
tomh1012
212
31ms
25 Feb 2026
Rule 110
dokutan
1,752
163ms
23 Feb 2026
Rule 110
dokutan
🥉
1,776
143ms
23 Feb 2026
Rule 110
edsrzf
165
310ms
22 Feb 2026
Rule 110
CaedenHarper
10,309
7ms
22 Feb 2026
Rule 110
KatieLG
10,108
5ms
21 Feb 2026
Rule 110
KatieLG
10,354
7ms
21 Feb 2026
Rule 110
plcc0
26
38ms
18 Feb 2026
Rule 110
Flekay
71
15ms
15 Feb 2026
Rule 110
edsrzf
🥇
64
962ms
15 Feb 2026
Rule 110
Steffan153
🥇
64
884ms
15 Feb 2026
Rule 110
sean-niemann
🥇
64
1,116ms
15 Feb 2026
Rule 110
dokutan
107
548ms
14 Feb 2026
Rule 110
Steffan153
🥇
73
13ms
14 Feb 2026
Rule 110
JOrE20
10,112
1ms
12 Feb 2026
Rule 110
JOrE20
242
25ms
12 Feb 2026
Rule 110
Steffan153
🥉
94
86ms
12 Feb 2026
Rule 110
AstroOrbis
101
11ms
11 Feb 2026
Rule 110
Steffan153
🥈
114
4ms
11 Feb 2026
Rule 110
rucin93
74
13ms
9 Feb 2026
Rule 110
sean-niemann
🥇
73
14ms
9 Feb 2026
Rule 110
dokutan
116
81ms
8 Feb 2026
Rule 110
Shanethegamer
10,107
5ms
7 Feb 2026
Rule 110
Shanethegamer
10,112
1ms
7 Feb 2026
Rule 110
elgan65536
124
238ms
7 Feb 2026
Rule 110
HumanoidCPU
10,112
1ms
6 Feb 2026
Rule 110
JOrE20
197
10ms
5 Feb 2026
Rule 110
edsrzf
91
1,363ms
30 Jan 2026
Rule 110
elttil
154
6ms
28 Jan 2026
Rule 110
jkelly467
🥉
127
2,539ms
28 Jan 2026
Rule 110
commandz0
36
11ms
28 Jan 2026
Rule 110
dokutan
1,236
1,424ms
26 Jan 2026
Rule 110
amazingalek
212
477ms
26 Jan 2026
Rule 110
junkondo-jp
134
11ms
24 Jan 2026
Rule 110
dokutan
🥉
428
81ms
23 Jan 2026
Rule 110
retrohun
10,381
1,690ms
23 Jan 2026
Rule 110
Yax42
112
17ms
20 Jan 2026