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
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
Apéry’s Constant
Binary Lambda Calculus
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
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
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
ALGOL 68
APL
ArkScript
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
><>
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
ALGOL 68
APL
ArkScript
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
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
Apéry’s Constant
Binary Lambda Calculus
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
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Lucky Numbers
dokutan
73
71ms
14 hours ago
Lucky Numbers
Shanethegamer
4,827
8ms
34 hours ago
Lucky Numbers
Shanethegamer
4,832
2ms
34 hours ago
Lucky Numbers
JOrE20
7,835
25ms
38 hours ago
Lucky Numbers
HumanoidCPU
4,832
2ms
3 days ago
Lucky Numbers
Emutis
135
120ms
3 days ago
Lucky Numbers
tomh1012
245
258ms
3 days ago
Lucky Numbers
plcc0
30
110ms
8 days ago
Lucky Numbers
Andrey2001
141
588ms
11 days ago
Lucky Numbers
Andrey2001
141
12ms
11 days ago
Lucky Numbers
KasperKivimaeki
🥇
120
262ms
12 days ago
Lucky Numbers
retrohun
6,001
1,769ms
17 days ago
Lucky Numbers
kg583
🥈
52
441ms
17 days ago
Lucky Numbers
kg583
53
12ms
17 days ago
Lucky Numbers
ryyyn
🥇
52
14ms
18 days ago
Lucky Numbers
amazingalek
166
426ms
18 days ago
Lucky Numbers
tomh1012
169
417ms
19 days ago
Lucky Numbers
sean-niemann
🥇
64
1,123ms
20 days ago
Lucky Numbers
DialFrost
🥈
173
1,610ms
22 days ago
Lucky Numbers
dokutan
1,078
10ms
11 Jan 2026
Lucky Numbers
rucin93
68
17ms
11 Jan 2026
Lucky Numbers
Yax42
334
5ms
9 Jan 2026
Lucky Numbers
77Tigers
77
12ms
9 Jan 2026
Lucky Numbers
KatieLG-Transpiler
5,822
3ms
9 Jan 2026
Lucky Numbers
KatieLG-Transpiler
5,827
12ms
9 Jan 2026
Lucky Numbers
KatieLG-Transpiler
5,825
3ms
9 Jan 2026
Lucky Numbers
KatieLG
55
13ms
7 Jan 2026
Lucky Numbers
KatieLG
58
463ms
7 Jan 2026
Lucky Numbers
sean-niemann
123
374ms
7 Jan 2026
Lucky Numbers
sean-niemann
68
28ms
7 Jan 2026
Lucky Numbers
sean-niemann
🥈
52
439ms
7 Jan 2026
Lucky Numbers
sean-niemann
53
12ms
7 Jan 2026
Lucky Numbers
sean-niemann
72
1,114ms
7 Jan 2026
Lucky Numbers
ovs-code
🥇
68
191ms
6 Jan 2026
Lucky Numbers
dokutan
1,995
14ms
5 Jan 2026
Lucky Numbers
kg583
151
210ms
4 Jan 2026
Lucky Numbers
HumanoidCPU
4,828
7ms
1 Jan 2026
Lucky Numbers
DialFrost
🥉
74
1,193ms
29 Dec 2025
Lucky Numbers
Lv0Sys
199
267ms
28 Dec 2025
Lucky Numbers
mwarvik
4,838
331ms
27 Dec 2025
Lucky Numbers
HumanoidCPU
2,451
846ms
27 Dec 2025
Lucky Numbers
dokutan
1,474
2ms
26 Dec 2025
Lucky Numbers
TheZwierzLF
80
1,852ms
25 Dec 2025
Lucky Numbers
Shanethegamer
4,840
3ms
25 Dec 2025
Lucky Numbers
Bmrl7
96
134ms
24 Dec 2025
Lucky Numbers
jared-hughes
80
11ms
24 Dec 2025
Lucky Numbers
kmathis22
166
463ms
23 Dec 2025
Lucky Numbers
AdrienHache
101
427ms
23 Dec 2025
Lucky Numbers
JOrE20
234
263ms
23 Dec 2025
Lucky Numbers
JOrE20
104
12ms
23 Dec 2025
Lucky Numbers
sean-niemann
84
11ms
23 Dec 2025
Lucky Numbers
GrayJoKing
🥉
78
12ms
23 Dec 2025
Lucky Numbers
albanian-laundromat
170
295ms
22 Dec 2025
Lucky Numbers
Mukundan314
53
19ms
20 Dec 2025
Lucky Numbers
kg583
🥉
79
25ms
17 Dec 2025
Lucky Numbers
Languag3
63
14ms
16 Dec 2025
Lucky Numbers
ravnskjaer
212
477ms
15 Dec 2025
Lucky Numbers
edsrzf
134
411ms
14 Dec 2025
Lucky Numbers
dokutan
1,422
87ms
12 Dec 2025
Lucky Numbers
dokutan
1,401
783ms
12 Dec 2025
Lucky Numbers
dokutan
🥉
1,057
127ms
12 Dec 2025
Lucky Numbers
Maashau
4,836
2ms
12 Dec 2025
Lucky Numbers
bizy-coder
56
395ms
10 Dec 2025
Lucky Numbers
bizy-coder
56
13ms
10 Dec 2025
Lucky Numbers
GrayJoKing
💎
69
76ms
9 Dec 2025
Lucky Numbers
Kacarott
73
69ms
9 Dec 2025
Lucky Numbers
albanian-laundromat
332
3,096ms
8 Dec 2025
Lucky Numbers
HumanoidCPU
4,873
320ms
7 Dec 2025
Lucky Numbers
HumanoidCPU
8,819
2ms
6 Dec 2025
Lucky Numbers
Lv0Sys
86
235ms
6 Dec 2025
Lucky Numbers
Lv0Sys
103
31ms
6 Dec 2025
Lucky Numbers
Lv0Sys
84
14ms
6 Dec 2025
Lucky Numbers
canissimia
💎
59
193ms
5 Dec 2025
Lucky Numbers
JOrE20
4,685
123ms
5 Dec 2025
Lucky Numbers
snoozingnewt
🥈
139
159ms
5 Dec 2025
Lucky Numbers
DialFrost
💎
128
105ms
4 Dec 2025
Lucky Numbers
JOrE20
168
13ms
4 Dec 2025
Lucky Numbers
Shanethegamer
4,840
123ms
4 Dec 2025
Lucky Numbers
sean-niemann
🥉
56
113ms
3 Dec 2025
Lucky Numbers
sean-niemann
51
51ms
3 Dec 2025