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
Chars
Time
Submitted
Ordinal Numbers
CommandLeo
108
12ms
13 hours ago
Ordinal Numbers
123mjb
119
18ms
2 days ago
Ordinal Numbers
solisolu
92
11ms
13 days ago
Ordinal Numbers
TJK-S
149
13ms
13 days ago
Ordinal Numbers
ryyyn
87
12ms
18 days ago
Ordinal Numbers
DrakeSeteraO
73
12ms
23 days ago
Ordinal Numbers
ndren
🥉
69
13ms
19 Oct 2025
Ordinal Numbers
luuumine
78
12ms
16 Oct 2025
Ordinal Numbers
ahmetdemirag
93
12ms
13 Oct 2025
Ordinal Numbers
Babafaba
74
13ms
10 Oct 2025
Ordinal Numbers
jacekwladzinski
98
12ms
7 Oct 2025
Ordinal Numbers
blaztoma
87
12ms
3 Oct 2025
Ordinal Numbers
SOONwasTaken
189
42ms
1 Oct 2025
Ordinal Numbers
cthierfelder
146
13ms
9 Sep 2025
Ordinal Numbers
fuzzylojik-golf
🥉
69
13ms
22 Aug 2025
Ordinal Numbers
denisfouchard
121
11ms
22 Aug 2025
Ordinal Numbers
wobblybits
135
28ms
20 Aug 2025
Ordinal Numbers
qpwoeirut
120
11ms
12 Aug 2025
Ordinal Numbers
Zhenyu-Bo
413
12ms
1 Aug 2025
Ordinal Numbers
lukegustafson
🥉
69
13ms
18 Jul 2025
Ordinal Numbers
RaBa21
85
20ms
18 Jul 2025
Ordinal Numbers
clayboll99
151
12ms
14 Jul 2025
Ordinal Numbers
dirckvdende
94
12ms
13 Jul 2025
Ordinal Numbers
CaedenHarper
🥉
69
13ms
11 Jul 2025
Ordinal Numbers
mothcolada
115
18ms
5 Jul 2025
Ordinal Numbers
KasperKivimaeki
93
19ms
3 Jul 2025
Ordinal Numbers
4atj
87
12ms
30 Jun 2025
Ordinal Numbers
moustave
92
11ms
27 Jun 2025
Ordinal Numbers
mossiegoat
95
18ms
25 Jun 2025
Ordinal Numbers
jipsong
109
17ms
22 Jun 2025
Ordinal Numbers
tejapvk
117
12ms
19 Jun 2025
Ordinal Numbers
Flekay
74
12ms
19 Jun 2025
Ordinal Numbers
SoliGhost
105
12ms
11 Jun 2025
Ordinal Numbers
kbeat
108
18ms
5 Jun 2025
Ordinal Numbers
Lv0Sys
95
12ms
31 May 2025
Ordinal Numbers
rucin93
🥉
69
12ms
31 May 2025
Ordinal Numbers
ffelixm
112
19ms
27 May 2025
Ordinal Numbers
TheZwierzLF
173
17ms
24 May 2025
Ordinal Numbers
EnisEfe0
164
18ms
18 May 2025
Ordinal Numbers
Mukundan314
71
12ms
26 Apr 2025
Ordinal Numbers
albanian-laundromat
74
13ms
14 Apr 2025
Ordinal Numbers
emgordon154
73
11ms
14 Apr 2025
Ordinal Numbers
ehulinsky
140
13ms
29 Mar 2025
Ordinal Numbers
dokutan
76
19ms
21 Mar 2025
Ordinal Numbers
ImpressedByRocks
112
32ms
11 Mar 2025
Ordinal Numbers
plcc0
72
12ms
8 Mar 2025
Ordinal Numbers
stulnikau
83
13ms
8 Mar 2025
Ordinal Numbers
andrewjc2000
87
11ms
6 Mar 2025
Ordinal Numbers
XilianRose
96
12ms
5 Mar 2025
Ordinal Numbers
snooze92
96
12ms
5 Mar 2025
Ordinal Numbers
Languag3
92
12ms
27 Feb 2025
Ordinal Numbers
mishak-sys
110
18ms
24 Feb 2025
Ordinal Numbers
jameswmccarty
134
18ms
23 Feb 2025
Ordinal Numbers
HumanoidCPU
86
13ms
18 Feb 2025
Ordinal Numbers
CornerMercury
🥉
69
13ms
14 Feb 2025
Ordinal Numbers
kops-cg
87
14ms
14 Feb 2025
Ordinal Numbers
tpepython
278
13ms
13 Feb 2025
Ordinal Numbers
ComputerKWasTaken
126
12ms
21 Jan 2025
Ordinal Numbers
Pyroan
92
12ms
17 Jan 2025
Ordinal Numbers
Artemis21
75
13ms
10 Jan 2025
Ordinal Numbers
AidanWalter
431
13ms
3 Jan 2025
Ordinal Numbers
yokasuretsu
162
13ms
2 Jan 2025
Ordinal Numbers
zt14427
156
18ms
28 Dec 2024
Ordinal Numbers
SURAJMITTAL
149
13ms
19 Dec 2024
Ordinal Numbers
croc54
87
12ms
15 Dec 2024
Ordinal Numbers
JunkIce
78
19ms
24 Nov 2024
Ordinal Numbers
OSYCh314
170
20ms
16 Nov 2024
Ordinal Numbers
lifthrasiir
71
12ms
16 Nov 2024
Ordinal Numbers
wh3n3v3r
80
14ms
14 Nov 2024
Ordinal Numbers
5quiwyrm
72
14ms
12 Nov 2024
Ordinal Numbers
Alex-Huggett
139
18ms
22 Oct 2024
Ordinal Numbers
Europe2048
110
13ms
22 Oct 2024
Ordinal Numbers
sciencejiho
125
18ms
18 Oct 2024
Ordinal Numbers
RedzGoose
110
12ms
18 Oct 2024
Ordinal Numbers
Emutis
113
14ms
10 Oct 2024