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
Odious Numbers
madex
30
257ms
5 days ago
Odious Numbers
NoneTheFewer
109
388ms
27 Dec 2025
Odious Numbers
bitsandbeyond
🥈
27
253ms
13 Oct 2025
Odious Numbers
Babafaba
38
282ms
11 Oct 2025
Odious Numbers
snoozingnewt
54
284ms
14 Sep 2025
Odious Numbers
CaedenHarper
72
247ms
16 Aug 2025
Odious Numbers
DelaneyJM
42
297ms
7 Aug 2025
Odious Numbers
geeksbsmrt
54
277ms
7 May 2025
Odious Numbers
sean-niemann
🥈
27
262ms
25 Mar 2025
Odious Numbers
juliansiebert
🥈
27
260ms
2 Feb 2025
Odious Numbers
5quiwyrm
46
248ms
2 Dec 2024
Odious Numbers
PlatoHero
65
304ms
10 Nov 2024
Odious Numbers
Mabeloid
74
204ms
22 Sep 2024
Odious Numbers
Steffan153
🥈
27
249ms
7 Aug 2024
Odious Numbers
dokutan
70
281ms
28 Jul 2024
Odious Numbers
DialFrost
🥈
27
303ms
6 Jun 2024
Odious Numbers
HumanoidCPU
72
241ms
18 May 2024
Odious Numbers
JPRuskin
28
253ms
30 Apr 2024
Odious Numbers
corbob
72
271ms
27 Apr 2024
Odious Numbers
dcgjb
🥈
27
263ms
24 Jan 2024
Odious Numbers
Lydxn
💎
24
230ms
5 Jan 2024
Odious Numbers
SirBogman
🥈
27
271ms
5 Jan 2024
Odious Numbers
Feniske
46
262ms
23 Nov 2023
Odious Numbers
Yewzir
46
262ms
21 Nov 2023
Odious Numbers
Msleizak
139
295ms
16 Nov 2023
Odious Numbers
MarkSimonyi
66
278ms
4 Nov 2023
Odious Numbers
HCRitter
59
266ms
1 Nov 2023
Odious Numbers
MeWhenI
32
272ms
5 Aug 2023
Odious Numbers
IISResetMe
🥈
27
272ms
1 Jul 2023
Odious Numbers
TaserTheFox
62
276ms
7 Jun 2023
Odious Numbers
kenmich
78
280ms
12 May 2023
Odious Numbers
Shanethegamer
32
251ms
22 Mar 2023
Odious Numbers
CORCJO
58
256ms
5 Mar 2023
Odious Numbers
Ripick
66
254ms
4 Feb 2023
Odious Numbers
sojumasterGA
90
254ms
3 Feb 2023
Odious Numbers
retrohun
85
235ms
28 Dec 2022
Odious Numbers
nwellnhof
🥈
27
269ms
26 Nov 2022
Odious Numbers
okhoel
60
261ms
22 Sep 2022
Odious Numbers
stefangimmillaro
36
252ms
7 Sep 2022
Odious Numbers
janssenu-assurity
61
252ms
4 Sep 2022
Odious Numbers
DocJade
80
248ms
12 Aug 2022
Odious Numbers
Arnaud-beep
55
284ms
9 Aug 2022
Odious Numbers
MaxCastella
57
279ms
8 Aug 2022
Odious Numbers
KatieLG-Transpiler
104
270ms
24 Jun 2022
Odious Numbers
krcs
55
272ms
1 May 2022
Odious Numbers
GrayJoKing
32
270ms
10 Mar 2022
Odious Numbers
mokymok
99
251ms
10 Nov 2021
Odious Numbers
KatieLG
104
248ms
10 Oct 2021
Odious Numbers
janbehrens
46
226ms
27 Sep 2021
Odious Numbers
adcreech
96
274ms
5 Sep 2021
Odious Numbers
RYNO8
82
268ms
28 Aug 2021
Odious Numbers
sisyphus-ppcg
32
249ms
10 Jun 2021
Odious Numbers
JayXon
28
233ms
3 Apr 2021
Odious Numbers
rholliday
71
290ms
26 Feb 2021
Odious Numbers
bac0id
74
226ms
25 Jan 2021
Odious Numbers
gjh71
65
258ms
21 Jan 2021
Odious Numbers
AJLindner
74
282ms
5 Jan 2021
Odious Numbers
janssenuy
61
263ms
22 Dec 2020
Odious Numbers
btnlq
30
263ms
19 Dec 2020
Odious Numbers
TimCurwick
49
275ms
30 Nov 2020
Odious Numbers
sergeyz7
70
299ms
18 Nov 2020
Odious Numbers
GolfingSuccess
102
203ms
21 Oct 2020
Odious Numbers
JsonWud
131
310ms
28 Jul 2020
Odious Numbers
acolytegerm
65
254ms
16 Jul 2020
Odious Numbers
rvdnieuwendijk
61
250ms
16 Jul 2020
Odious Numbers
lahell
59
311ms
4 Jul 2020
Odious Numbers
prplz
30
261ms
27 Jun 2020
Odious Numbers
harperse
67
275ms
17 Jun 2020
Odious Numbers
HumanEquivalentUnit
30
243ms
15 Jun 2020
Odious Numbers
dwarfmagic
75
265ms
13 Jun 2020
Odious Numbers
J0ram
70
275ms
12 Jun 2020
Odious Numbers
primo-ppcg
30
253ms
10 Jun 2020
Odious Numbers
WatchBenGo
69
275ms
9 Jun 2020
Odious Numbers
bstrautin
30
237ms
9 Jun 2020
Odious Numbers
hdformat
72
255ms
8 Jun 2020
Odious Numbers
Agazoth
78
287ms
8 Jun 2020
Odious Numbers
krzydoug
75
262ms
7 Jun 2020
Odious Numbers
KevinMarquette
54
263ms
7 Jun 2020
Odious Numbers
JamesWTruher
46
237ms
5 Jun 2020
Odious Numbers
sbprice
68
283ms
5 Jun 2020