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
Minesweeper
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
Binary Lambda Calculus
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
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
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
Minesweeper
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
Binary Lambda Calculus
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
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Hilbert Curve
JOrE20
562
10ms
9 hours ago
Hilbert Curve
CaedenHarper
367
942ms
10 hours ago
Hilbert Curve
CaedenHarper
💎
406
1,105ms
10 hours ago
Hilbert Curve
CaedenHarper
376
221ms
10 hours ago
Hilbert Curve
CornerMercury
330
13ms
10 hours ago
Hilbert Curve
bitsandbeyond
🥈
253
1,182ms
38 hours ago
Hilbert Curve
HumanoidCPU
5,291
27ms
2 days ago
Hilbert Curve
Babafaba
721
2,305ms
2 days ago
Hilbert Curve
CaedenHarper
🥉
565
282ms
3 days ago
Hilbert Curve
snoozingnewt
💎
756
27ms
6 days ago
Hilbert Curve
namelessiw
598
423ms
9 days ago
Hilbert Curve
canissimia
💎
424
7ms
10 days ago
Hilbert Curve
ndren
649
11ms
10 days ago
Hilbert Curve
edsrzf
🥈
440
285ms
10 days ago
Hilbert Curve
snoozingnewt
774
51ms
11 days ago
Hilbert Curve
iczelia
5,125
8ms
13 days ago
Hilbert Curve
snoozingnewt
🥈
542
97ms
14 days ago
Hilbert Curve
snoozingnewt
💎
556
484ms
14 days ago
Hilbert Curve
CLOStrophobic
🥈
666
104ms
14 days ago
Hilbert Curve
CLOStrophobic
563
26ms
15 days ago
Hilbert Curve
LukeBridges
5,124
17ms
15 days ago
Hilbert Curve
sean-niemann
🥈
250
174ms
16 days ago
Hilbert Curve
CaedenHarper
508
388ms
16 days ago
Hilbert Curve
jared-hughes
324
4ms
16 days ago
Hilbert Curve
jared-hughes
276
12ms
16 days ago
Hilbert Curve
jared-hughes
370
22ms
16 days ago
Hilbert Curve
MeWhenI
661
33ms
17 days ago
Hilbert Curve
MeWhenI
633
10ms
17 days ago
Hilbert Curve
snoozingnewt
🥉
565
77ms
17 days ago
Hilbert Curve
luuumine
953
13ms
17 days ago
Hilbert Curve
Babafaba
5,128
7ms
19 days ago
Hilbert Curve
snoozingnewt
🥉
614
99ms
19 days ago
Hilbert Curve
snoozingnewt
🥉
597
196ms
19 days ago
Hilbert Curve
snoozingnewt
585
209ms
19 days ago
Hilbert Curve
snoozingnewt
💎
565
2ms
19 days ago
Hilbert Curve
snoozingnewt
🥉
533
3ms
19 days ago
Hilbert Curve
snoozingnewt
549
262ms
19 days ago
Hilbert Curve
snoozingnewt
560
2,173ms
19 days ago
Hilbert Curve
snoozingnewt
625
371ms
19 days ago
Hilbert Curve
snoozingnewt
663
131ms
19 days ago
Hilbert Curve
snoozingnewt
🥉
857
55ms
19 days ago
Hilbert Curve
snoozingnewt
600
257ms
19 days ago
Hilbert Curve
snoozingnewt
🥉
529
834ms
19 days ago
Hilbert Curve
snoozingnewt
518
907ms
19 days ago
Hilbert Curve
snoozingnewt
521
37ms
19 days ago
Hilbert Curve
snoozingnewt
592
359ms
19 days ago
Hilbert Curve
snoozingnewt
764
2ms
19 days ago
Hilbert Curve
snoozingnewt
865
356ms
19 days ago
Hilbert Curve
snoozingnewt
521
449ms
19 days ago
Hilbert Curve
snoozingnewt
🥈
575
28ms
19 days ago
Hilbert Curve
snoozingnewt
🥉
570
132ms
19 days ago
Hilbert Curve
snoozingnewt
🥇
537
9ms
19 days ago
Hilbert Curve
snoozingnewt
🥈
536
212ms
19 days ago
Hilbert Curve
snoozingnewt
💎
673
28ms
19 days ago
Hilbert Curve
MarcMush
1,513
290ms
19 days ago
Hilbert Curve
snoozingnewt
🥉
549
4ms
20 days ago
Hilbert Curve
canissimia
💎
169
138ms
20 days ago
Hilbert Curve
canissimia
💎
182
3ms
20 days ago
Hilbert Curve
canissimia
💎
159
10ms
20 days ago
Hilbert Curve
Babafaba
5,313
3ms
21 days ago
Hilbert Curve
snoozingnewt
🥈
575
2ms
21 days ago
Hilbert Curve
snoozingnewt
💎
573
8ms
21 days ago
Hilbert Curve
snoozingnewt
🥈
564
1,290ms
21 days ago
Hilbert Curve
snoozingnewt
🥈
904
41ms
21 days ago
Hilbert Curve
snoozingnewt
💎
580
285ms
21 days ago
Hilbert Curve
snoozingnewt
523
10ms
21 days ago
Hilbert Curve
snoozingnewt
💎
570
3ms
21 days ago
Hilbert Curve
snoozingnewt
💎
548
111ms
21 days ago
Hilbert Curve
snoozingnewt
💎
529
8ms
21 days ago
Hilbert Curve
canissimia
💎
206
527ms
22 days ago
Hilbert Curve
KatieLG
💎
1,033
4ms
22 days ago
Hilbert Curve
frankgraziano
🥈
5,155
15ms
22 days ago
Hilbert Curve
janAkali
5,127
115ms
23 days ago
Hilbert Curve
alexsave
434
11ms
23 days ago
Hilbert Curve
canissimia
💎
162
848ms
24 days ago