The
Kaprekar Numbers
hole will go live in
2 days
. Why not try and solve it ahead of time?
Recent Solutions
Prev Hole
Play Hole
Next Hole
Golfers
Solutions
gs
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
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
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
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lisp
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
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lisp
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
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
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
Bytes
Submitted
ISBN
JayXon
🥈
85
22 hours ago
ISBN
DialFrost
170
22 hours ago
ISBN
sean-niemann
🥈
85
23 hours ago
ISBN
Shanethegamer
🥈
90
a day ago
ISBN
rucin93
🥈
85
a day ago
ISBN
IdkWhatIsIdk
235
a day ago
ISBN
KatieLG
103
a day ago
ISBN
ovs-code
92
2 days ago
ISBN
FlyingPenguin223
🥈
95
2 days ago
ISBN
pardouin
💎
88
3 days ago
ISBN
kg583
🥈
126
3 days ago
ISBN
DialFrost
92
3 days ago
ISBN
DialFrost
🥉
91
4 days ago
ISBN
MeWhenI
96
4 days ago
ISBN
dokutan
106
4 days ago
ISBN
MeWhenI
110
5 days ago
ISBN
antimon2
🥇
63
7 days ago
ISBN
AlephSquirrel
🥉
130
7 days ago
ISBN
aDwarfNamedUrist
184
8 days ago
ISBN
retrohun
126
11 days ago
ISBN
cdesodt
147
13 days ago
ISBN
bzijlema
102
14 days ago
ISBN
edsrzf
134
16 days ago
ISBN
emgordon154
79
16 days ago
ISBN
mousetail
118
17 days ago
ISBN
DialFrost
66
18 days ago
ISBN
mousetail
🥈
61
19 days ago
ISBN
janAkali
152
20 days ago
ISBN
aliakseikalosha
179
21 days ago
ISBN
aliakseikalosha
118
21 days ago
ISBN
xyangst
109
21 days ago
ISBN
aliakseikalosha
136
22 days ago
ISBN
Mabeloid
116
22 days ago
ISBN
Mabeloid
116
22 days ago
ISBN
edsrzf
106
22 days ago
ISBN
MeWhenI
212
23 days ago
ISBN
duckyluuk
78
25 days ago
ISBN
unfinishedprogram
117
26 days ago
ISBN
sisyphus-ppcg
🥉
59
26 days ago
ISBN
MeWhenI
123
26 days ago
ISBN
DialFrost
60
26 days ago
ISBN
JunkIce
133
26 days ago
ISBN
MeWhenI
199
27 days ago
ISBN
jwhear
230
30 Sep 2024
ISBN
pardouin
🥉
85
26 Sep 2024
ISBN
pardouin
94
26 Sep 2024
ISBN
Maximizer02
135
24 Sep 2024
ISBN
Seek64
99
24 Sep 2024
ISBN
edsrzf
173
21 Sep 2024
ISBN
alphafalfa
121
20 Sep 2024
ISBN
m4xxh
134
17 Sep 2024
ISBN
Jacob385
142
17 Sep 2024
ISBN
Jacob385
172
17 Sep 2024
ISBN
kpal81xd
89
15 Sep 2024
ISBN
AdrienHache
💎
46
15 Sep 2024
ISBN
AlephSquirrel
203
15 Sep 2024
ISBN
DialFrost
142
14 Sep 2024
ISBN
Mandrzejy
134
13 Sep 2024
ISBN
Mandrzejy
114
13 Sep 2024
ISBN
madeforlosers
110
13 Sep 2024
ISBN
Kacarott
92
13 Sep 2024
ISBN
AlephSquirrel
138
13 Sep 2024
ISBN
jbjd
154
12 Sep 2024
ISBN
DialFrost
149
12 Sep 2024
ISBN
jbjd
124
12 Sep 2024
ISBN
ovs-code
💎
90
12 Sep 2024
ISBN
stefangimmillaro
98
12 Sep 2024
ISBN
zacjl
33
12 Sep 2024
ISBN
ravnskjaer
180
11 Sep 2024
ISBN
hamilton-bonds
137
11 Sep 2024
ISBN
Schreipfelerer
136
11 Sep 2024
ISBN
emgordon154
37
11 Sep 2024
ISBN
Shanethegamer
💎
164
10 Sep 2024
ISBN
kg583
🥈
172
10 Sep 2024
ISBN
NicknamedTwice
125
9 Sep 2024