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
ln 2
namelessiw
201
9 hours ago
ln 2
Apataras
💎
128
3 days ago
ln 2
HumanoidCPU
1,009
3 days ago
ln 2
CommandLeo
🥇
53
4 days ago
ln 2
stefangimmillaro
144
4 days ago
ln 2
Emutis
🥇
53
5 days ago
ln 2
blaztoma
🥇
53
5 days ago
ln 2
jacekwladzinski
78
6 days ago
ln 2
kmathis22
208
7 days ago
ln 2
snoozingnewt
49
7 days ago
ln 2
Yewzir
1,028
8 days ago
ln 2
Schmitt-Very-Cool
224
8 days ago
ln 2
jerrandolph
191
10 days ago
ln 2
FortuiteMan
🥈
87
11 days ago
ln 2
Shanethegamer
1,057
11 days ago
ln 2
snoozingnewt
1,002
11 days ago
ln 2
FortuiteMan
72
11 days ago
ln 2
mossiegoat
112
12 days ago
ln 2
snoozingnewt
75
12 days ago
ln 2
CaedenHarper
65
12 days ago
ln 2
zyc-2024
670
13 days ago
ln 2
albanian-laundromat
61
14 days ago
ln 2
sean-niemann
138
14 days ago
ln 2
DialFrost
137
14 days ago
ln 2
Nemikolh
1,011
14 days ago
ln 2
nwellnhof
🥉
133
15 days ago
ln 2
JayXon
🥈
130
15 days ago
ln 2
CaedenHarper
1,028
15 days ago
ln 2
Shanethegamer
1,028
15 days ago
ln 2
dokutan
604
15 days ago
ln 2
jared-hughes
177
15 days ago
ln 2
KatieLG
1,045
15 days ago
ln 2
Shanethegamer
995
16 days ago
ln 2
edsrzf
🥇
52
17 days ago
ln 2
albanian-laundromat
🥉
52
18 days ago
ln 2
emgordon154
73
20 days ago
ln 2
emgordon154
48
20 days ago
ln 2
Shanethegamer
1,009
21 days ago
ln 2
edsrzf
🥇
47
22 days ago
ln 2
sean-niemann
🥇
47
22 days ago
ln 2
eprovst
37
23 days ago
ln 2
HETHAT
🥇
53
23 days ago
ln 2
cros107
64
24 days ago
ln 2
tomh1012
127
24 days ago
ln 2
msbranicky
1,057
24 days ago
ln 2
primo-ppcg
💎
160
24 days ago
ln 2
DialFrost
🥈
162
25 days ago
ln 2
MeWhenI
87
25 days ago
ln 2
snoozingnewt
35
26 days ago
ln 2
ovs-code
🥉
211
26 days ago
ln 2
KatieLG
1,158
27 days ago
ln 2
dokutan
1,057
27 days ago
ln 2
albanian-laundromat
204
27 days ago
ln 2
Chinay-Domitrix
294
11 Sep 2025
ln 2
olleicua
1,009
11 Sep 2025
ln 2
qpwoeirut
🥇
53
10 Sep 2025
ln 2
52525rr
61
9 Sep 2025
ln 2
cthierfelder
76
8 Sep 2025
ln 2
Yax42
65
8 Sep 2025
ln 2
Yax42
124
8 Sep 2025
ln 2
dokutan
1,016
7 Sep 2025
ln 2
CaedenHarper
90
6 Sep 2025
ln 2
albanian-laundromat
🥉
272
3 Sep 2025
ln 2
InigoK
🥇
53
2 Sep 2025
ln 2
gigaprofisi
113
1 Sep 2025
ln 2
dokutan
582
30 Aug 2025
ln 2
DialFrost
53
30 Aug 2025
ln 2
retrohun
1,009
22 Aug 2025
ln 2
StardustGogeta
57
22 Aug 2025
ln 2
zbreit
57
22 Aug 2025
ln 2
BREMAUCY
49
20 Aug 2025
ln 2
HumanoidCPU
1,004
17 Aug 2025
ln 2
wobblybits
119
15 Aug 2025
ln 2
HumanoidCPU
1,031
14 Aug 2025
ln 2
primo-ppcg
💎
273
13 Aug 2025