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
Bytes
Time
Submitted
Niven Numbers
HumanoidCPU
138
271ms
9 days ago
Niven Numbers
b-illy
88
258ms
14 days ago
Niven Numbers
CaedenHarper
🥇
87
264ms
14 days ago
Niven Numbers
albanian-laundromat
90
261ms
21 days ago
Niven Numbers
snoozingnewt
89
260ms
28 Sep 2025
Niven Numbers
targrik
88
258ms
27 Aug 2025
Niven Numbers
GolfingSuccess
🥇
87
262ms
10 Aug 2025
Niven Numbers
KasperKivimaeki
88
244ms
27 Jul 2025
Niven Numbers
edsrzf
88
255ms
26 Jul 2025
Niven Numbers
ridingqwerty
89
256ms
23 Jul 2025
Niven Numbers
fuzzylojik-golf
🥇
87
268ms
15 Jul 2025
Niven Numbers
qwertyuiop3
91
255ms
6 Jun 2025
Niven Numbers
mpldr
141
250ms
25 Mar 2025
Niven Numbers
emgordon154
88
262ms
17 Jan 2025
Niven Numbers
pardouin
🥇
87
265ms
29 Sep 2024
Niven Numbers
Mabeloid
175
254ms
22 Sep 2024
Niven Numbers
rifatx
111
250ms
19 Jul 2024
Niven Numbers
dokutan
90
269ms
24 Mar 2024
Niven Numbers
elgan65536
88
264ms
5 Mar 2024
Niven Numbers
kkoenig
🥇
87
263ms
7 Jan 2024
Niven Numbers
harshit54
89
295ms
6 Jan 2024
Niven Numbers
Betuaredead
🥇
87
257ms
11 Nov 2023
Niven Numbers
sisyphus-ppcg
🥇
87
259ms
29 Oct 2023
Niven Numbers
Yewzir
🥇
87
248ms
25 Oct 2023
Niven Numbers
msbranicky
104
263ms
8 Sep 2023
Niven Numbers
eli-siegel
424
292ms
28 Jun 2023
Niven Numbers
sean-niemann
🥇
87
255ms
17 Jun 2023
Niven Numbers
m-tkach
88
252ms
14 Jun 2023
Niven Numbers
stefangimmillaro
🥇
87
252ms
13 Jun 2023
Niven Numbers
Shanethegamer
88
256ms
8 Mar 2023
Niven Numbers
MeWhenI
🥇
87
251ms
9 Feb 2023
Niven Numbers
DialFrost
🥇
87
257ms
18 Jan 2023
Niven Numbers
Bodo171
180
269ms
15 Jan 2023
Niven Numbers
retrohun
175
257ms
28 Dec 2022
Niven Numbers
Steffan153
🥇
87
259ms
17 Dec 2022
Niven Numbers
KatieLG-Transpiler
140
265ms
24 Jun 2022
Niven Numbers
KatieLG
138
295ms
9 Apr 2022
Niven Numbers
GrayJoKing
88
254ms
14 Mar 2022
Niven Numbers
j-Ewan
136
285ms
11 Mar 2022
Niven Numbers
emplv
88
275ms
18 Jan 2022
Niven Numbers
ovs-code
88
253ms
19 Nov 2021
Niven Numbers
mokymok
170
260ms
9 Nov 2021
Niven Numbers
Lydxn
🥇
87
264ms
23 Sep 2021
Niven Numbers
nwellnhof
🥇
87
261ms
6 Jul 2021
Niven Numbers
cure-honey
90
264ms
26 Jun 2021
Niven Numbers
janbehrens
89
267ms
12 Jun 2021
Niven Numbers
primo-ppcg
88
254ms
5 Jun 2021
Niven Numbers
prplz
88
257ms
5 Jun 2021
Niven Numbers
JayXon
🥇
87
274ms
5 Jun 2021
Niven Numbers
argusdusty
89
265ms
31 Dec 2020
Niven Numbers
dpatterbee
89
254ms
24 Aug 2020
Niven Numbers
JRaspass
138
272ms
15 Jul 2020
Niven Numbers
cywong-amino
89
256ms
30 May 2020
Niven Numbers
0xjac
111
256ms
21 May 2020
Niven Numbers
taklam
90
250ms
20 May 2020
Niven Numbers
rjsbooth
99
262ms
23 Apr 2020
Niven Numbers
tsakath
113
250ms
22 Apr 2020
Niven Numbers
bendiscz
88
259ms
21 Apr 2020
Niven Numbers
b97tsk
88
251ms
21 Apr 2020
Niven Numbers
potatoattack
89
260ms
21 Apr 2020
Niven Numbers
Techassi
111
255ms
21 Apr 2020
Niven Numbers
MahlerFive
89
275ms
20 Apr 2020
Niven Numbers
lukechampine
89
291ms
19 Apr 2020
Niven Numbers
yzzyx
89
248ms
18 Apr 2020
Niven Numbers
jerrandolph
117
256ms
17 Apr 2020
Niven Numbers
mazzegi
176
262ms
16 Apr 2020