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
Gray Code Decoder
Gray Code Encoder
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
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
Gray Code Decoder
Gray Code Encoder
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
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
Bytes
Time
Submitted
Niven Numbers (Long)
retrohun
9,150
1,674ms
11 hours ago
Niven Numbers (Long)
DayDun
🥇
42
23ms
25 hours ago
Niven Numbers (Long)
Steffan153
🥇
42
23ms
29 hours ago
Niven Numbers (Long)
0jdxt
102
130ms
37 hours ago
Niven Numbers (Long)
duckyluuk
🥉
72
49ms
42 hours ago
Niven Numbers (Long)
JayXon
🥇
65
1,241ms
2 days ago
Niven Numbers (Long)
sean-niemann
🥇
65
1,325ms
2 days ago
Niven Numbers (Long)
fuzzylojik-golf
🥇
65
1,434ms
2 days ago
Niven Numbers (Long)
pardouin
🥇
65
1,370ms
2 days ago
Niven Numbers (Long)
pardouin
🥇
137
1,645ms
2 days ago
Niven Numbers (Long)
dokutan
93
1,359ms
2 days ago
Niven Numbers (Long)
jusaka
155
15ms
2 days ago
Niven Numbers (Long)
jusaka
86,375
13ms
2 days ago
Niven Numbers (Long)
jusaka
7,444
8ms
2 days ago
Niven Numbers (Long)
jusaka
7,439
186ms
2 days ago
Niven Numbers (Long)
jusaka
7,438
225ms
2 days ago
Niven Numbers (Long)
jusaka
8,987
2ms
2 days ago
Niven Numbers (Long)
jusaka
8,985
23ms
2 days ago
Niven Numbers (Long)
jusaka
8,997
178ms
2 days ago
Niven Numbers (Long)
jusaka
8,990
2ms
2 days ago
Niven Numbers (Long)
jusaka
20
114ms
2 days ago
Niven Numbers (Long)
jusaka
7,440
416ms
2 days ago
Niven Numbers (Long)
jusaka
163
42ms
2 days ago
Niven Numbers (Long)
jusaka
255
21ms
2 days ago
Niven Numbers (Long)
jusaka
7,449
261ms
2 days ago
Niven Numbers (Long)
MeWhenI
141
2,209ms
2 days ago
Niven Numbers (Long)
jusaka
152
7ms
2 days ago
Niven Numbers (Long)
jusaka
16,712
6ms
2 days ago
Niven Numbers (Long)
jusaka
9,032
295ms
3 days ago
Niven Numbers (Long)
jusaka
9,007
80ms
3 days ago
Niven Numbers (Long)
jusaka
9,024
65ms
3 days ago
Niven Numbers (Long)
jusaka
8,987
20ms
3 days ago
Niven Numbers (Long)
jusaka
8,998
60ms
3 days ago
Niven Numbers (Long)
jusaka
149
5ms
3 days ago
Niven Numbers (Long)
jusaka
230
6ms
3 days ago
Niven Numbers (Long)
jusaka
140
12ms
3 days ago
Niven Numbers (Long)
jusaka
189
4ms
3 days ago
Niven Numbers (Long)
jusaka
52
46ms
3 days ago
Niven Numbers (Long)
MeWhenI
66
1,384ms
3 days ago
Niven Numbers (Long)
snoozingnewt
79
1,359ms
3 days ago
Niven Numbers (Long)
DialFrost
🥇
65
1,381ms
3 days ago
Niven Numbers (Long)
Steffan153
🥇
65
1,444ms
3 days ago
Niven Numbers (Long)
jusaka
196
26ms
3 days ago
Niven Numbers (Long)
jusaka
160
991ms
3 days ago
Niven Numbers (Long)
msbranicky
166
1,759ms
3 days ago
Niven Numbers (Long)
KatieLG
9,175
1,717ms
3 days ago
Niven Numbers (Long)
jusaka
178
3ms
3 days ago
Niven Numbers (Long)
jusaka
7,443
1,022ms
3 days ago
Niven Numbers (Long)
jusaka
7,457
2ms
3 days ago
Niven Numbers (Long)
jusaka
13,610
8ms
3 days ago
Niven Numbers (Long)
jusaka
7,455
3ms
3 days ago
Niven Numbers (Long)
jusaka
7,466
93ms
3 days ago
Niven Numbers (Long)
jusaka
7,458
134ms
3 days ago
Niven Numbers (Long)
jusaka
8,979
2ms
3 days ago
Niven Numbers (Long)
jusaka
7,447
2ms
3 days ago
Niven Numbers (Long)
jusaka
19,741
87ms
3 days ago
Niven Numbers (Long)
jusaka
7,459
140ms
3 days ago
Niven Numbers (Long)
jusaka
8,986
45ms
3 days ago
Niven Numbers (Long)
jusaka
8,982
326ms
3 days ago
Niven Numbers (Long)
jusaka
7,447
117ms
3 days ago
Niven Numbers (Long)
jusaka
7,447
42ms
3 days ago
Niven Numbers (Long)
jusaka
7,461
261ms
3 days ago
Niven Numbers (Long)
jusaka
8,986
10ms
3 days ago
Niven Numbers (Long)
jusaka
7,450
2,441ms
3 days ago
Niven Numbers (Long)
jusaka
35,137
220ms
3 days ago
Niven Numbers (Long)
jusaka
16,800
184ms
3 days ago
Niven Numbers (Long)
jusaka
8,983
5ms
3 days ago
Niven Numbers (Long)
jusaka
8,983
3ms
3 days ago
Niven Numbers (Long)
jusaka
30,501
13ms
3 days ago
Niven Numbers (Long)
jusaka
8,976
5ms
3 days ago
Niven Numbers (Long)
jusaka
7,450
152ms
3 days ago
Niven Numbers (Long)
jusaka
7,476
437ms
3 days ago
Niven Numbers (Long)
jusaka
8,983
5ms
3 days ago
Niven Numbers (Long)
jusaka
21,288
40ms
3 days ago
Niven Numbers (Long)
jusaka
9,017
1,505ms
3 days ago
Niven Numbers (Long)
jusaka
8,987
154ms
3 days ago
Niven Numbers (Long)
jusaka
68,971
579ms
3 days ago
Niven Numbers (Long)
jusaka
7,450
1,341ms
3 days ago
Niven Numbers (Long)
jusaka
7,488
317ms
3 days ago
Niven Numbers (Long)
jusaka
8,980
42ms
3 days ago