Recent Solutions
Prev Hole
Play Hole
Next Hole
Achievements
Cheevos
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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Multitap Input
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
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
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
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
ALGOL 68
ArkScript
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
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
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
ALGOL 68
ArkScript
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
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
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Multitap Input
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
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
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
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Sierpiński Triangle
arcpolaris
425
399ms
5 hours ago
Sierpiński Triangle
blaztoma
74
10ms
12 hours ago
Sierpiński Triangle
CaedenHarper
399
3ms
2 days ago
Sierpiński Triangle
Steffan153
💎
138
30ms
2 days ago
Sierpiński Triangle
edsrzf
🥉
147
32ms
2 days ago
Sierpiński Triangle
edsrzf
61
12ms
2 days ago
Sierpiński Triangle
edsrzf
🥈
75
6ms
2 days ago
Sierpiński Triangle
dokutan
335
270ms
2 days ago
Sierpiński Triangle
dokutan
207
22ms
2 days ago
Sierpiński Triangle
GrayJoKing
💎
69
6ms
2 days ago
Sierpiński Triangle
edsrzf
🥈
81
45ms
2 days ago
Sierpiński Triangle
Protothor
114
9ms
2 days ago
Sierpiński Triangle
SuperFola
203
77ms
3 days ago
Sierpiński Triangle
CaedenHarper
62
40ms
5 days ago
Sierpiński Triangle
matejmatik123
249
1,435ms
13 days ago
Sierpiński Triangle
roupiq
109
13ms
15 days ago
Sierpiński Triangle
kg583
🥈
146
31ms
18 days ago
Sierpiński Triangle
ovs-code
59
4ms
19 days ago
Sierpiński Triangle
Flekay
66
10ms
22 days ago
Sierpiński Triangle
KatieLG
63
10ms
22 days ago
Sierpiński Triangle
Steffan153
💎
90
113ms
23 days ago
Sierpiński Triangle
artemetra
88
9ms
25 days ago
Sierpiński Triangle
WinterWolfSV
88
9ms
25 days ago
Sierpiński Triangle
emgordon154
42
2ms
26 days ago
Sierpiński Triangle
dokutan
362
26ms
27 days ago
Sierpiński Triangle
dokutan
🥉
290
8ms
27 days ago
Sierpiński Triangle
CaedenHarper
433
6ms
22 Feb 2026
Sierpiński Triangle
KatieLG
400
3ms
21 Feb 2026
Sierpiński Triangle
KatieLG
478
6ms
21 Feb 2026
Sierpiński Triangle
Lv0Sys
73
14ms
20 Feb 2026
Sierpiński Triangle
Lv0Sys
75
10ms
20 Feb 2026
Sierpiński Triangle
plcc0
21
41ms
18 Feb 2026
Sierpiński Triangle
JOrE20
🥉
130
27ms
15 Feb 2026
Sierpiński Triangle
dokutan
74
382ms
14 Feb 2026
Sierpiński Triangle
frankgraziano
93
5ms
14 Feb 2026
Sierpiński Triangle
dokutan
108
2ms
14 Feb 2026
Sierpiński Triangle
edsrzf
93
4ms
13 Feb 2026
Sierpiński Triangle
firegene
99
11ms
13 Feb 2026
Sierpiński Triangle
Steffan153
🥇
44
746ms
13 Feb 2026
Sierpiński Triangle
edsrzf
🥉
49
735ms
13 Feb 2026
Sierpiński Triangle
snoozingnewt
64
386ms
13 Feb 2026
Sierpiński Triangle
snoozingnewt
64
10ms
13 Feb 2026
Sierpiński Triangle
Steffan153
🥈
65
2,514ms
13 Feb 2026
Sierpiński Triangle
Steffan153
💎
75
40ms
13 Feb 2026
Sierpiński Triangle
Steffan153
💎
53
4ms
12 Feb 2026
Sierpiński Triangle
Steffan153
76
352ms
11 Feb 2026
Sierpiński Triangle
Steffan153
🥉
81
8ms
11 Feb 2026
Sierpiński Triangle
Yewzir
114
1ms
9 Feb 2026
Sierpiński Triangle
Natanaelel
20
27ms
8 Feb 2026
Sierpiński Triangle
dokutan
83
58ms
8 Feb 2026
Sierpiński Triangle
Shanethegamer
399
3ms
7 Feb 2026
Sierpiński Triangle
Shanethegamer
404
1ms
7 Feb 2026
Sierpiński Triangle
elgan65536
114
125ms
7 Feb 2026
Sierpiński Triangle
HumanoidCPU
404
1ms
6 Feb 2026
Sierpiński Triangle
sean-niemann
🥉
85
129ms
5 Feb 2026
Sierpiński Triangle
D-MOVE
65
37ms
3 Feb 2026
Sierpiński Triangle
JOrE20
352
3ms
2 Feb 2026
Sierpiński Triangle
duckyluuk
161
2ms
29 Jan 2026
Sierpiński Triangle
FortuiteMan
🥈
269
6ms
28 Jan 2026
Sierpiński Triangle
Andrey2001
218
585ms
28 Jan 2026
Sierpiński Triangle
Yax42
78
378ms
27 Jan 2026
Sierpiński Triangle
jameswmccarty
404
9ms
26 Jan 2026
Sierpiński Triangle
amazingalek
311
454ms
26 Jan 2026
Sierpiński Triangle
dokutan
107
74ms
23 Jan 2026
Sierpiński Triangle
retrohun
589
1,731ms
23 Jan 2026
Sierpiński Triangle
Frowny
33
34ms
19 Jan 2026
Sierpiński Triangle
prestosilver
100
405ms
15 Jan 2026
Sierpiński Triangle
dokutan
187
9ms
11 Jan 2026
Sierpiński Triangle
JayXon
💎
80
130ms
11 Jan 2026
Sierpiński Triangle
stefangimmillaro
80
98ms
10 Jan 2026
Sierpiński Triangle
ovs-code
76
113ms
9 Jan 2026
Sierpiński Triangle
kumavale
🥈
84
118ms
9 Jan 2026
Sierpiński Triangle
sean-niemann
🥈
71
87ms
9 Jan 2026
Sierpiński Triangle
KatieLG-Transpiler
410
2ms
9 Jan 2026
Sierpiński Triangle
KatieLG-Transpiler
415
9ms
9 Jan 2026
Sierpiński Triangle
KatieLG-Transpiler
413
2ms
9 Jan 2026
Sierpiński Triangle
NicoPlayZ9002-YT
404
9ms
6 Jan 2026
Sierpiński Triangle
tomh1012
121
377ms
5 Jan 2026
Sierpiński Triangle
nwellnhof
🥈
54
3ms
4 Jan 2026
Sierpiński Triangle
canissimia
💎
52
3ms
4 Jan 2026