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
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
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
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
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
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
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
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
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
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
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
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Chars
Submitted
√2
mossiegoat
81
28 hours ago
√2
InigoK
54
4 days ago
√2
qpwoeirut
56
7 days ago
√2
Upload-and-View
68
11 days ago
√2
jasonxue1
53
12 days ago
√2
cthierfelder
68
13 days ago
√2
piano-miles
55
17 days ago
√2
Zhenyu-Bo
274
19 days ago
√2
ahmetdemirag
65
21 days ago
√2
addmai
59
25 days ago
√2
BREMAUCY
55
25 days ago
√2
redweasel
58
27 days ago
√2
xiaoyiming123
56
27 days ago
√2
wuduculfre
🥇
49
22 Jul 2025
√2
RaBa21
65
18 Jul 2025
√2
GoldStar184
68
17 Jul 2025
√2
dirckvdende
🥇
49
16 Jul 2025
√2
sainiayush
68
14 Jul 2025
√2
Flekay
65
10 Jul 2025
√2
clayboll99
69
10 Jul 2025
√2
lukegustafson
🥇
49
1 Jul 2025
√2
KasperKivimaeki
🥇
49
1 Jul 2025
√2
4atj
🥇
49
30 Jun 2025
√2
Mathrew2012
86
13 Jun 2025
√2
albanian-laundromat
60
4 Jun 2025
√2
Lv0Sys
68
25 May 2025
√2
ImpressedByRocks
66
24 May 2025
√2
BenjaminHGong
68
23 May 2025
√2
JOrE-Softwares
68
21 May 2025
√2
Voltrifrodec
68
14 May 2025
√2
StinkyMilo
53
12 May 2025
√2
codewrite
68
7 May 2025
√2
Andrey135296
79
6 May 2025
√2
52525rr
81
4 May 2025
√2
Mukundan314
🥇
49
2 May 2025
√2
0dyse
68
29 Apr 2025
√2
cefqrn
🥇
49
13 Apr 2025
√2
mbittner20
180
13 Apr 2025
√2
zyc-2024
670
12 Apr 2025
√2
WillowWispy
81
20 Mar 2025
√2
cros107
55
18 Mar 2025
√2
agreegious
56
16 Mar 2025
√2
JunkIce
58
13 Mar 2025
√2
Pyroan
63
10 Mar 2025
√2
gigaprofisi
68
2 Mar 2025
√2
liam824css
79
2 Mar 2025
√2
starfihs
68
26 Feb 2025
√2
plcc0
🥇
49
19 Feb 2025
√2
yhm138
236
16 Feb 2025
√2
kops-cg
🥇
49
16 Feb 2025
√2
CornerMercury
59
14 Feb 2025
√2
CLOStrophobic
🥇
49
11 Feb 2025
√2
ryyyn
68
28 Jan 2025
√2
ComputerKWasTaken
1,011
23 Jan 2025
√2
driri85
67
7 Jan 2025
√2
firewoods1978
🥇
49
3 Jan 2025
√2
AidanWalter
187
3 Jan 2025
√2
yokasuretsu
69
31 Dec 2024
√2
deancureton
1,011
29 Dec 2024
√2
glassala
60
25 Dec 2024
√2
DraigRygbi
63
19 Dec 2024
√2
GioacchinoGT02
70
3 Dec 2024
√2
croc54
56
3 Dec 2024
√2
lifthrasiir
🥇
49
29 Nov 2024
√2
olikmujnyhbtgvfc
78
22 Nov 2024
√2
nemulilonala
89
22 Nov 2024
√2
Unknownuserfrommars
69
21 Nov 2024
√2
snydej
58
21 Nov 2024
√2
JonahEMorgan
75
9 Nov 2024
√2
OSYCh314
74
9 Nov 2024
√2
wh3n3v3r
66
8 Nov 2024
√2
TorbjornBak
107
8 Nov 2024
√2
sciencedjinn
69
8 Nov 2024
√2
lhulinsky
84
22 Oct 2024
√2
Alex-Huggett
136
22 Oct 2024