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
Continued Fractions
Crossword
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
Continued Fractions
Crossword
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
Chars
Time
Submitted
Hilbert Curve
emgordon154
💎
113
191ms
9 hours ago
Hilbert Curve
JOrE20
🥈
641
7ms
10 hours ago
Hilbert Curve
CornerMercury
170
19ms
15 hours ago
Hilbert Curve
rucin93
💎
249
795ms
28 hours ago
Hilbert Curve
Emutis
1,307
12ms
31 hours ago
Hilbert Curve
KatieLG
🥉
893
63ms
32 hours ago
Hilbert Curve
ovs-code
253
3ms
33 hours ago
Hilbert Curve
BREMAUCY
🥇
2,084
4ms
35 hours ago
Hilbert Curve
BREMAUCY
🥉
2,088
14ms
36 hours ago
Hilbert Curve
ovs-code
💎
533
7ms
2 days ago
Hilbert Curve
JOrE20
🥉
16,498
5ms
2 days ago
Hilbert Curve
MeWhenI
300
684ms
2 days ago
Hilbert Curve
MeWhenI
543
4ms
2 days ago
Hilbert Curve
MeWhenI
🥈
479
46ms
2 days ago
Hilbert Curve
MeWhenI
🥉
537
13ms
2 days ago
Hilbert Curve
MeWhenI
518
184ms
2 days ago
Hilbert Curve
MeWhenI
559
304ms
2 days ago
Hilbert Curve
MeWhenI
💎
527
7ms
2 days ago
Hilbert Curve
MeWhenI
🥈
507
233ms
2 days ago
Hilbert Curve
MeWhenI
187
35ms
2 days ago
Hilbert Curve
MeWhenI
300
14ms
2 days ago
Hilbert Curve
MeWhenI
362
349ms
2 days ago
Hilbert Curve
Natanaelel
1,234
160ms
3 days ago
Hilbert Curve
Natanaelel
267
50ms
3 days ago
Hilbert Curve
Tristanchaang
2,060
11ms
5 days ago
Hilbert Curve
ndren
2,094
3ms
5 days ago
Hilbert Curve
BREMAUCY
🥈
1,269
4ms
6 days ago
Hilbert Curve
Natanaelel
🥉
327
31ms
6 days ago
Hilbert Curve
GrayJoKing
🥈
148
227ms
6 days ago
Hilbert Curve
edsrzf
💎
340
3ms
7 days ago
Hilbert Curve
ovs-code
🥈
107
34ms
7 days ago
Hilbert Curve
HumanoidCPU
🥉
2,087
1ms
7 days ago
Hilbert Curve
CaedenHarper
🥉
491
243ms
7 days ago
Hilbert Curve
CaedenHarper
352
229ms
7 days ago
Hilbert Curve
Shanethegamer
🥉
2,087
1ms
7 days ago
Hilbert Curve
CaedenHarper
🥉
2,087
1ms
7 days ago
Hilbert Curve
HumanoidCPU
499
8ms
8 days ago
Hilbert Curve
error256
🥈
414
3ms
8 days ago
Hilbert Curve
HumanoidCPU
2,175
24ms
9 days ago
Hilbert Curve
Kacarott
1,325
67ms
9 days ago
Hilbert Curve
snoozingnewt
🥈
592
483ms
10 days ago
Hilbert Curve
KasperKivimaeki
357
955ms
10 days ago
Hilbert Curve
KasperKivimaeki
🥇
172
1,013ms
10 days ago
Hilbert Curve
snoozingnewt
465
983ms
10 days ago
Hilbert Curve
JOrE20
🥉
1,400
12ms
10 days ago
Hilbert Curve
JOrE20
🥈
1,696
25ms
10 days ago
Hilbert Curve
JOrE20
🥉
1,448
2ms
10 days ago
Hilbert Curve
JOrE20
🥈
1,426
99ms
10 days ago
Hilbert Curve
snoozingnewt
474
2,246ms
10 days ago
Hilbert Curve
JOrE20
1,224
783ms
10 days ago
Hilbert Curve
JOrE20
2,057
3ms
10 days ago
Hilbert Curve
JOrE20
2,048
171ms
10 days ago
Hilbert Curve
JOrE20
2,049
34ms
10 days ago
Hilbert Curve
HumanoidCPU
2,144
6ms
10 days ago
Hilbert Curve
HumanoidCPU
2,078
328ms
11 days ago
Hilbert Curve
elgan65536
751
204ms
11 days ago
Hilbert Curve
MeWhenI
💎
3,708
879ms
11 days ago
Hilbert Curve
CaedenHarper
347
942ms
13 days ago
Hilbert Curve
HumanoidCPU
2,221
26ms
15 days ago
Hilbert Curve
Babafaba
387
347ms
15 days ago
Hilbert Curve
snoozingnewt
🥈
678
27ms
19 days ago
Hilbert Curve
namelessiw
571
367ms
22 days ago
Hilbert Curve
canissimia
💎
424
7ms
22 days ago
Hilbert Curve
edsrzf
🥈
424
285ms
23 days ago
Hilbert Curve
snoozingnewt
🥉
696
51ms
24 days ago
Hilbert Curve
iczelia
2,055
8ms
26 days ago
Hilbert Curve
snoozingnewt
🥉
464
100ms
27 days ago
Hilbert Curve
snoozingnewt
💎
478
484ms
27 days ago
Hilbert Curve
CLOStrophobic
🥈
652
104ms
27 days ago
Hilbert Curve
CLOStrophobic
541
23ms
22 Oct 2025
Hilbert Curve
LukeBridges
2,054
9ms
22 Oct 2025
Hilbert Curve
sean-niemann
💎
152
270ms
21 Oct 2025
Hilbert Curve
CaedenHarper
488
388ms
21 Oct 2025
Hilbert Curve
jared-hughes
310
4ms
21 Oct 2025
Hilbert Curve
jared-hughes
262
11ms
21 Oct 2025