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
Bytes
Time
Submitted
99 Bottles of Beer
codewrite
310
458ms
23 Dec 2025
99 Bottles of Beer
Yax42
245
420ms
23 Dec 2025
99 Bottles of Beer
amazingalek
293
440ms
15 Dec 2025
99 Bottles of Beer
mwarvik
317
432ms
15 Dec 2025
99 Bottles of Beer
tomh1012
245
430ms
3 Dec 2025
99 Bottles of Beer
JarrinseCubillo
674
421ms
21 Nov 2025
99 Bottles of Beer
qrakhen
333
471ms
18 Nov 2025
99 Bottles of Beer
HumanoidCPU
11,903
370ms
9 Nov 2025
99 Bottles of Beer
gpikmddk
341
440ms
5 Nov 2025
99 Bottles of Beer
blaztoma
311
461ms
18 Aug 2025
99 Bottles of Beer
AdrienHache
255
441ms
6 Aug 2025
99 Bottles of Beer
okuzmeniuk
458
417ms
24 Jun 2025
99 Bottles of Beer
mntdn
379
433ms
17 Jun 2025
99 Bottles of Beer
8p2e8mik
356
440ms
24 May 2025
99 Bottles of Beer
Tyrant7
294
411ms
19 Apr 2025
99 Bottles of Beer
Pecanolith
323
412ms
19 Apr 2025
99 Bottles of Beer
Squimbletin
493
413ms
19 Apr 2025
99 Bottles of Beer
DitherDude
303
415ms
9 Apr 2025
99 Bottles of Beer
Soyo-Wind
326
433ms
16 Mar 2025
99 Bottles of Beer
xk0fe
423
438ms
5 Mar 2025
99 Bottles of Beer
cryptoriddlerUIO
280
446ms
2 Mar 2025
99 Bottles of Beer
CaedenHarper
350
399ms
27 Jan 2025
99 Bottles of Beer
arcpolaris
307
435ms
5 Dec 2024
99 Bottles of Beer
namelessiw
239
414ms
25 Oct 2024
99 Bottles of Beer
najs91
392
425ms
15 Oct 2024
99 Bottles of Beer
Ralac07
466
409ms
22 Sep 2024
99 Bottles of Beer
dokutan
307
395ms
18 Sep 2024
99 Bottles of Beer
Mabeloid
12,200
407ms
17 Sep 2024
99 Bottles of Beer
aliakseikalosha
307
410ms
5 Sep 2024
99 Bottles of Beer
stoyandimov
515
433ms
4 Sep 2024
99 Bottles of Beer
FriLiHaGo
328
437ms
1 Sep 2024
99 Bottles of Beer
tomward77
336
409ms
5 Aug 2024
99 Bottles of Beer
SrGalletaEXT
326
433ms
29 Jul 2024
99 Bottles of Beer
Maximizer02
343
428ms
16 Jul 2024
99 Bottles of Beer
bac0id
290
424ms
5 Jul 2024
99 Bottles of Beer
rifatx
276
480ms
2 Jul 2024
99 Bottles of Beer
KatieLG
280
454ms
6 Jun 2024
99 Bottles of Beer
RobertEves92
518
423ms
15 May 2024
99 Bottles of Beer
JarrodCope
370
407ms
19 Apr 2024
99 Bottles of Beer
MiffOttah
307
429ms
13 Apr 2024
99 Bottles of Beer
DanLewis01
448
410ms
21 Feb 2024
99 Bottles of Beer
Yewzir
303
391ms
11 Feb 2024
99 Bottles of Beer
TRexOnGit
294
440ms
15 Jan 2024
99 Bottles of Beer
jellyworld
327
425ms
12 Jan 2024
99 Bottles of Beer
logvp
292
424ms
12 Jan 2024
99 Bottles of Beer
0culist
603
416ms
27 Dec 2023
99 Bottles of Beer
Schmitt-Very-Cool
325
404ms
24 Dec 2023
99 Bottles of Beer
LS2021
325
452ms
23 Nov 2023
99 Bottles of Beer
arctouch-cristiannevianna
293
422ms
21 Nov 2023
99 Bottles of Beer
ElysiaVesper
595
421ms
13 Nov 2023
99 Bottles of Beer
glthomas
🥉
213
410ms
26 Oct 2023
99 Bottles of Beer
wgloverDH
315
402ms
26 Sep 2023
99 Bottles of Beer
josephdwalker
325
464ms
26 Sep 2023
99 Bottles of Beer
Shnapster
311
441ms
26 Sep 2023
99 Bottles of Beer
carlpeter
552
413ms
4 Sep 2023
99 Bottles of Beer
msbranicky
373
417ms
28 Aug 2023
99 Bottles of Beer
stefangimmillaro
281
400ms
10 Aug 2023
99 Bottles of Beer
Lydxn
💎
210
427ms
21 Jul 2023
99 Bottles of Beer
onlmusha1
313
405ms
8 Jul 2023
99 Bottles of Beer
dorschmeister
340
440ms
18 May 2023
99 Bottles of Beer
janbehrens
268
413ms
10 May 2023
99 Bottles of Beer
heathlarsen
926
438ms
5 Apr 2023
99 Bottles of Beer
christensendaniel
786
430ms
29 Mar 2023
99 Bottles of Beer
adotagarwal
312
419ms
4 Mar 2023
99 Bottles of Beer
sean-niemann
219
431ms
2 Mar 2023
99 Bottles of Beer
tomtheisen
214
422ms
24 Feb 2023
99 Bottles of Beer
Adix-null
306
413ms
9 Feb 2023
99 Bottles of Beer
Nkik
569
411ms
9 Feb 2023
99 Bottles of Beer
tuxillator
519
408ms
20 Jan 2023
99 Bottles of Beer
DialFrost
344
432ms
8 Jan 2023
99 Bottles of Beer
ChrisTheisen
302
408ms
12 Dec 2022
99 Bottles of Beer
RvRooijen
1,186
413ms
10 Dec 2022
99 Bottles of Beer
sabvdf
371
420ms
8 Dec 2022
99 Bottles of Beer
MeWhenI
239
405ms
8 Dec 2022
99 Bottles of Beer
dsx20
314
430ms
4 Dec 2022
99 Bottles of Beer
DaCuteRaccoon
350
419ms
29 Nov 2022
99 Bottles of Beer
retrohun
753
384ms
22 Nov 2022
99 Bottles of Beer
premun
334
433ms
18 Nov 2022
99 Bottles of Beer
arctouch-andresato
285
413ms
11 Nov 2022
99 Bottles of Beer
arctouch-kseniyagaripova
450
438ms
9 Nov 2022