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
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
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
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
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
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
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
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
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
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
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
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Time Distance
Tongue-twisters
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Hole
Golfer
Chars
Submitted
ISBN
Salutations45
80
7 days ago
ISBN
alexsave
105
26 days ago
ISBN
penbuvt
83
27 days ago
ISBN
aliakseikalosha
118
8 Oct 2024
ISBN
xyangst
109
7 Oct 2024
ISBN
duckyluuk
78
4 Oct 2024
ISBN
unfinishedprogram
117
3 Oct 2024
ISBN
kpal81xd
89
15 Sep 2024
ISBN
madeforlosers
110
13 Sep 2024
ISBN
stefangimmillaro
98
12 Sep 2024
ISBN
dokutan
93
5 Aug 2024
ISBN
vlpx
75
1 Aug 2024
ISBN
Florian-Mt
175
9 Jul 2024
ISBN
KatieLG
92
8 Jul 2024
ISBN
MyXoToD
147
2 Jul 2024
ISBN
GrayJoKing
76
28 Jun 2024
ISBN
emgordon154
82
25 Jun 2024
ISBN
hacker112
107
24 Jun 2024
ISBN
mrxz
101
23 Jun 2024
ISBN
madex
110
6 Jun 2024
ISBN
junkondo-jp
95
2 Jun 2024
ISBN
xsot
75
13 Apr 2024
ISBN
neel11235813
79
25 Mar 2024
ISBN
deancureton
107
24 Mar 2024
ISBN
helbling
83
13 Mar 2024
ISBN
trinityy-7
83
13 Mar 2024
ISBN
two-bad
92
25 Feb 2024
ISBN
Steffan153
75
24 Feb 2024
ISBN
mckymsh
110
17 Feb 2024
ISBN
voytxt
80
4 Feb 2024
ISBN
olleicua
89
3 Feb 2024
ISBN
lukegustafson
77
24 Jan 2024
ISBN
itserasmus
102
17 Jan 2024
ISBN
dylanarmstrong
95
12 Jan 2024
ISBN
weliveinhell
90
11 Jan 2024
ISBN
sean-niemann
75
28 Dec 2023
ISBN
Attero
87
22 Dec 2023
ISBN
uttumuttu
79
21 Dec 2023
ISBN
danielphilpottwork
87
20 Dec 2023
ISBN
Yewzir
81
1 Dec 2023
ISBN
Argeento
75
18 Nov 2023
ISBN
rucin93
75
14 Nov 2023
ISBN
DialFrost
75
14 Nov 2023
ISBN
iliazeus
81
6 Nov 2023
ISBN
coreynash
77
19 Oct 2023
ISBN
ovs-code
79
29 Sep 2023
ISBN
snoozingnewt
133
23 Sep 2023
ISBN
msbranicky
113
8 Sep 2023
ISBN
MiranDaniel
133
31 Aug 2023
ISBN
apokryfos
128
19 Aug 2023
ISBN
biocommando
84
11 Aug 2023
ISBN
MeWhenI
76
9 Aug 2023
ISBN
Vaekor
127
9 Jul 2023
ISBN
Shanethegamer
77
4 Jul 2023
ISBN
nwellnhof
🥇
74
23 Jun 2023
ISBN
thisishowmymindworks
82
10 Jun 2023
ISBN
sebipopa
77
22 May 2023
ISBN
stefangabos
77
19 May 2023
ISBN
tayloia
80
16 May 2023
ISBN
Andrey-Plotnikov
94
16 May 2023
ISBN
13x1
84
15 May 2023
ISBN
zakariamouhid
106
14 May 2023
ISBN
adamnielson42
91
26 Apr 2023
ISBN
misono-nobuhiro
167
15 Mar 2023
ISBN
AlephSquirrel
87
15 Feb 2023
ISBN
Natanaelel
85
7 Feb 2023
ISBN
ShiraJoseph
102
28 Jan 2023
ISBN
DayDun
80
22 Jan 2023
ISBN
csangos
337
5 Jan 2023
ISBN
astdefu
92
10 Dec 2022
ISBN
janbehrens
80
24 Nov 2022
ISBN
LukeBridges
107
8 Nov 2022
ISBN
SirFireball3521
82
31 Oct 2022
ISBN
dmrichwa
77
27 Oct 2022
ISBN
BloodStormKnight
107
15 Oct 2022