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
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
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
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 Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
QR Encoder
Quadratic Formula
Scrambled Alphabetization
Semiprime Numbers
Snake
Sphenic Numbers
Star Wars GPT
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
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
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
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
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 Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
QR Encoder
Quadratic Formula
Scrambled Alphabetization
Semiprime Numbers
Snake
Sphenic Numbers
Star Wars GPT
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
ISBN
JDiLenarda
🥉
175
11 hours ago
ISBN
albanian-laundromat
121
20 hours ago
ISBN
MeepMoop
96
35 hours ago
ISBN
ovs-code
72
40 hours ago
ISBN
Shanethegamer
79
2 days ago
ISBN
plcc0
31
3 days ago
ISBN
DialFrost
119
4 days ago
ISBN
BREMAUCY
378
4 days ago
ISBN
edsrzf
💎
151
4 days ago
ISBN
acotis
🥉
153
5 days ago
ISBN
primo-ppcg
🥇
90
6 days ago
ISBN
plcc0
278
8 days ago
ISBN
Chinay-Domitrix
121
14 days ago
ISBN
yoshykai
196
14 days ago
ISBN
emplv
89
14 days ago
ISBN
frosster
102
16 days ago
ISBN
emgordon154
111
17 days ago
ISBN
plcc0
22
17 days ago
ISBN
estomagordo
132
17 days ago
ISBN
2bular
18
18 days ago
ISBN
Natanaelel
19
18 days ago
ISBN
chartung17
115
18 days ago
ISBN
sean-niemann
🥈
87
19 days ago
ISBN
sean-niemann
🥈
113
19 days ago
ISBN
plcc0
125
19 days ago
ISBN
dokutan
113
20 days ago
ISBN
themoonisacheese
37
25 days ago
ISBN
Europe2048
129
26 days ago
ISBN
Blendi-Goose
124
26 days ago
ISBN
emgordon154
156
14 Mar 2025
ISBN
zacjl
32
14 Mar 2025
ISBN
TetraPengwin
124
14 Mar 2025
ISBN
emgordon154
💎
232
10 Mar 2025
ISBN
andrewjc2000
109
9 Mar 2025
ISBN
rollershutter
96
6 Mar 2025
ISBN
emgordon154
🥉
87
6 Mar 2025
ISBN
emgordon154
213
6 Mar 2025
ISBN
DialFrost
🥉
271
5 Mar 2025
ISBN
rollershutter
105
5 Mar 2025
ISBN
rollershutter
139
5 Mar 2025
ISBN
HumanoidCPU
186
4 Mar 2025
ISBN
HumanoidCPU
136
4 Mar 2025
ISBN
HumanoidCPU
179
3 Mar 2025
ISBN
HumanoidCPU
118
3 Mar 2025
ISBN
HumanoidCPU
158
3 Mar 2025
ISBN
HumanoidCPU
107
3 Mar 2025
ISBN
plcc0
111
3 Mar 2025
ISBN
HumanoidCPU
109
3 Mar 2025
ISBN
HumanoidCPU
151
3 Mar 2025
ISBN
HumanoidCPU
120
3 Mar 2025
ISBN
HumanoidCPU
92
2 Mar 2025
ISBN
HumanoidCPU
155
2 Mar 2025
ISBN
HumanoidCPU
85
2 Mar 2025
ISBN
HumanoidCPU
115
2 Mar 2025
ISBN
HumanoidCPU
123
2 Mar 2025
ISBN
edsrzf
💎
119
2 Mar 2025
ISBN
MeWhenI
🥈
43
1 Mar 2025
ISBN
ovs-code
56
26 Feb 2025
ISBN
DialFrost
119
25 Feb 2025
ISBN
kevinnaviapaiva
347
24 Feb 2025
ISBN
kevinnaviapaiva
348
24 Feb 2025
ISBN
rollershutter
116
24 Feb 2025
ISBN
Pyroan
115
21 Feb 2025
ISBN
edsrzf
147
21 Feb 2025
ISBN
emgordon154
156
20 Feb 2025
ISBN
emgordon154
106
20 Feb 2025
ISBN
emgordon154
126
20 Feb 2025
ISBN
emgordon154
180
20 Feb 2025
ISBN
emgordon154
139
20 Feb 2025
ISBN
emgordon154
80
16 Feb 2025
ISBN
error256
67
14 Feb 2025
ISBN
error256
🥈
76
14 Feb 2025
ISBN
error256
🥇
90
14 Feb 2025
ISBN
BREMAUCY
202
14 Feb 2025
ISBN
kg583
🥈
157
13 Feb 2025