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
Bytes
Time
Submitted
Tutorial
Emre-KMZ
112
58ms
37 hours ago
Tutorial
ColeWyeth
198
3,370ms
20 days ago
Tutorial
mdkaiyum33
208
2,921ms
26 days ago
Tutorial
cjdyer
105
575ms
6 Mar 2026
Tutorial
SunnyFishQwQ
114
68ms
24 Feb 2026
Tutorial
AlejoRjas
395
2,561ms
23 Feb 2026
Tutorial
janAkali
395
2,896ms
14 Feb 2026
Tutorial
AutumnWind75
117
600ms
7 Feb 2026
Tutorial
Natanaelel
133
3,041ms
5 Feb 2026
Tutorial
yeminghan2021
112
84ms
4 Feb 2026
Tutorial
FortuiteMan
395
3,304ms
3 Feb 2026
Tutorial
Carlos-EAC
147
1,648ms
1 Feb 2026
Tutorial
annihilateRed0
114
725ms
23 Jan 2026
Tutorial
itsquasiab
133
90ms
18 Jan 2026
Tutorial
Roachbones
395
2,951ms
16 Jan 2026
Tutorial
Mefred
395
2,741ms
15 Jan 2026
Tutorial
Louis7728
193
3,320ms
7 Jan 2026
Tutorial
HumanoidCPU
96
546ms
1 Jan 2026
Tutorial
adityaghosh2264
149
2,335ms
13 Dec 2025
Tutorial
qpwoeirut
125
66ms
8 Dec 2025
Tutorial
273dan
215
3,474ms
7 Dec 2025
Tutorial
frankgraziano
96
511ms
21 Nov 2025
Tutorial
JOrE20
169
2,697ms
18 Nov 2025
Tutorial
luuumine
139
71ms
10 Nov 2025
Tutorial
6512345
120
66ms
4 Nov 2025
Tutorial
ToE42
395
3,060ms
31 Oct 2025
Tutorial
Openstreetmapler
395
3,657ms
30 Oct 2025
Tutorial
emgordon154
107
623ms
20 Oct 2025
Tutorial
DialFrost
96
698ms
18 Oct 2025
Tutorial
Babafaba
395
2,949ms
15 Oct 2025
Tutorial
SirBogman
96
716ms
5 Oct 2025
Tutorial
CaedenHarper
96
544ms
1 Oct 2025
Tutorial
TheCodingMathematician
182
3,195ms
28 Sep 2025
Tutorial
matejmatik123
145
1,452ms
26 Sep 2025
Tutorial
targrik
109
65ms
18 Sep 2025
Tutorial
wojtekmal
97
572ms
16 Sep 2025
Tutorial
snoozingnewt
96
535ms
15 Sep 2025
Tutorial
frederni
173
2,770ms
11 Sep 2025
Tutorial
xanqh
179
3,459ms
6 Sep 2025
Tutorial
PanNessMain
192
1,892ms
26 Aug 2025
Tutorial
IntOverflow-maxwell
121
78ms
26 Aug 2025
Tutorial
michaelmoynihan
96
690ms
26 Aug 2025
Tutorial
GolfingSuccess
96
622ms
25 Aug 2025
Tutorial
Vexxter9
410
1,514ms
21 Aug 2025
Tutorial
Galaxy1108
127
65ms
21 Aug 2025
Tutorial
ysy-255
115
566ms
9 Aug 2025
Tutorial
AloveZ66671
124
64ms
7 Aug 2025
Tutorial
joaosigma
96
475ms
24 Jul 2025
Tutorial
duckyluuk
130
2,055ms
17 Jul 2025
Tutorial
Naitzirch
227
1,779ms
16 Jul 2025
Tutorial
Jigglypuffed
148
1,613ms
13 Jul 2025
Tutorial
Bpc-CPU
410
1,823ms
12 Jul 2025
Tutorial
snobbywaterfowl
214
1,766ms
10 Jul 2025
Tutorial
abloomis
184
1,740ms
5 Jul 2025
Tutorial
RYSF13
96
589ms
5 Jul 2025
Tutorial
yanjs
99
526ms
4 Jul 2025
Tutorial
nilan425
410
1,871ms
1 Jul 2025
Tutorial
QuentynDT
141
63ms
26 Jun 2025
Tutorial
d1joseph
410
1,503ms
22 Jun 2025
Tutorial
dralston78
208
1,532ms
20 Jun 2025
Tutorial
klixel
240
1,833ms
19 Jun 2025
Tutorial
folicore
133
487ms
18 Jun 2025
Tutorial
YonYon2
410
1,981ms
17 Jun 2025
Tutorial
Apataras
173
2,220ms
16 Jun 2025
Tutorial
myirci
410
2,022ms
15 Jun 2025
Tutorial
emetiel
157
72ms
5 Jun 2025
Tutorial
achoum
114
577ms
4 Jun 2025
Tutorial
qwertyuiop3
105
502ms
3 Jun 2025
Tutorial
TheZwierzLF
156
1,931ms
1 Jun 2025
Tutorial
JOrE-Softwares
410
1,667ms
21 May 2025
Tutorial
Shanethegamer
96
716ms
21 May 2025
Tutorial
MehPeh
117
63ms
21 May 2025
Tutorial
zacjl
96
646ms
19 May 2025
Tutorial
KasperKivimaeki
95
526ms
19 May 2025
Tutorial
quantomjona
185
1,771ms
15 May 2025
Tutorial
RoBoardGod
119
75ms
15 May 2025
Tutorial
cuzdav
106
66ms
3 May 2025
Tutorial
Mukundan314
96
449ms
25 Apr 2025
Tutorial
inventshah
95
599ms
23 Apr 2025
Tutorial
m-tkach
98
612ms
21 Apr 2025