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
Chars
Submitted
Christmas Trees
Sascha37
176
16 hours ago
Christmas Trees
WildTooth
243
31 hours ago
Christmas Trees
TJK-S
94
46 hours ago
Christmas Trees
Jasonbot135
89
3 days ago
Christmas Trees
HumanoidCPU
553
3 days ago
Christmas Trees
KatieLG
61
4 days ago
Christmas Trees
snoozingnewt
210
4 days ago
Christmas Trees
stefangimmillaro
114
4 days ago
Christmas Trees
snoozingnewt
92
5 days ago
Christmas Trees
KatieLG
92
5 days ago
Christmas Trees
jacekwladzinski
92
5 days ago
Christmas Trees
KasperKivimaeki
82
6 days ago
Christmas Trees
CaedenHarper
124
6 days ago
Christmas Trees
KatieLG
62
7 days ago
Christmas Trees
Yewzir
114
8 days ago
Christmas Trees
matejmatik123
157
9 days ago
Christmas Trees
joll05
88
10 days ago
Christmas Trees
Shanethegamer
653
12 days ago
Christmas Trees
kmathis22
185
13 days ago
Christmas Trees
Schmitt-Very-Cool
181
13 days ago
Christmas Trees
JayXon
💎
95
14 days ago
Christmas Trees
InigoK
77
14 days ago
Christmas Trees
albanian-laundromat
68
14 days ago
Christmas Trees
nwellnhof
🥉
110
15 days ago
Christmas Trees
Shanethegamer
624
15 days ago
Christmas Trees
sean-niemann
🥈
105
15 days ago
Christmas Trees
dokutan
127
16 days ago
Christmas Trees
albanian-laundromat
164
16 days ago
Christmas Trees
DialFrost
114
16 days ago
Christmas Trees
jared-hughes
119
16 days ago
Christmas Trees
KatieLG
593
16 days ago
Christmas Trees
blaztoma
80
18 days ago
Christmas Trees
snoozingnewt
114
20 days ago
Christmas Trees
Shanethegamer
553
21 days ago
Christmas Trees
timhaj
142
22 days ago
Christmas Trees
msbranicky
227
22 days ago
Christmas Trees
KatieLG
61
25 days ago
Christmas Trees
plopa1
125
25 days ago
Christmas Trees
TeodorDyakov
298
25 days ago
Christmas Trees
CaedenHarper
78
25 days ago
Christmas Trees
AlexKent3141
114
26 days ago
Christmas Trees
DialFrost
155
27 days ago
Christmas Trees
KatieLG
754
27 days ago
Christmas Trees
dokutan
653
27 days ago
Christmas Trees
sean-niemann
🥈
60
27 days ago
Christmas Trees
dokutan
604
12 Sep 2025
Christmas Trees
LegoDerby
214
11 Sep 2025
Christmas Trees
dokutan
340
10 Sep 2025
Christmas Trees
Yax42
86
10 Sep 2025
Christmas Trees
kkoenig
140
8 Sep 2025
Christmas Trees
blaztoma
173
7 Sep 2025
Christmas Trees
edsrzf
🥉
62
5 Sep 2025
Christmas Trees
KapelMeister
89
4 Sep 2025
Christmas Trees
HolmDev
101
3 Sep 2025
Christmas Trees
5quiwyrm
86
2 Sep 2025
Christmas Trees
LHuitre
86
1 Sep 2025
Christmas Trees
pardouin
53
1 Sep 2025
Christmas Trees
edsrzf
100
1 Sep 2025
Christmas Trees
commandblockguy
71
1 Sep 2025
Christmas Trees
dokutan
72
30 Aug 2025
Christmas Trees
emgordon154
53
30 Aug 2025
Christmas Trees
kumavale
🥇
89
30 Aug 2025
Christmas Trees
MeWhenI
89
29 Aug 2025
Christmas Trees
qpwoeirut
84
29 Aug 2025
Christmas Trees
lboust
134
29 Aug 2025
Christmas Trees
DialFrost
💎
59
29 Aug 2025
Christmas Trees
CaedenHarper
92
24 Aug 2025
Christmas Trees
Emutis
88
23 Aug 2025
Christmas Trees
retrohun
79
23 Aug 2025
Christmas Trees
retrohun
🥉
74
22 Aug 2025
Christmas Trees
retrohun
67
22 Aug 2025
Christmas Trees
Apataras
613
22 Aug 2025
Christmas Trees
BREMAUCY
82
19 Aug 2025
Christmas Trees
HumanoidCPU
554
18 Aug 2025
Christmas Trees
HumanoidCPU
554
18 Aug 2025