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
Kaprekar Numbers
Steffan153
80
4,973ms
22 hours ago
Kaprekar Numbers
ryyyn
100
4,381ms
4 days ago
Kaprekar Numbers
sean-niemann
79
4,990ms
8 days ago
Kaprekar Numbers
ZakkkkAttackkkk
165
4,658ms
10 days ago
Kaprekar Numbers
plcc0
151
4,960ms
11 days ago
Kaprekar Numbers
KatieLG
199
2,123ms
13 Jan 2026
Kaprekar Numbers
KatieLG-Transpiler
519
9ms
9 Jan 2026
Kaprekar Numbers
cros107
138
3,516ms
8 Jan 2026
Kaprekar Numbers
sunleonid
🥉
77
4,749ms
4 Jan 2026
Kaprekar Numbers
blaztoma
152
1,812ms
31 Dec 2025
Kaprekar Numbers
CornerMercury
105
4,997ms
28 Dec 2025
Kaprekar Numbers
kg583
86
4,297ms
27 Dec 2025
Kaprekar Numbers
CommandLeo
132
4,953ms
24 Dec 2025
Kaprekar Numbers
TheZwierzLF
314
1,967ms
18 Dec 2025
Kaprekar Numbers
051
317
3,648ms
16 Dec 2025
Kaprekar Numbers
bizy-coder
🥇
71
2,166ms
16 Dec 2025
Kaprekar Numbers
Andrey2001
241
4,157ms
5 Dec 2025
Kaprekar Numbers
FortuiteMan
214
11ms
1 Dec 2025
Kaprekar Numbers
ndren
101
4,974ms
26 Nov 2025
Kaprekar Numbers
Babafaba
135
2,847ms
25 Nov 2025
Kaprekar Numbers
snoozingnewt
115
2,030ms
20 Nov 2025
Kaprekar Numbers
ApoChagi
216
1,231ms
17 Nov 2025
Kaprekar Numbers
cthierfelder
260
3,138ms
13 Nov 2025
Kaprekar Numbers
qpwoeirut
100
4,263ms
7 Nov 2025
Kaprekar Numbers
JOrE20
452
10ms
6 Nov 2025
Kaprekar Numbers
webmiche
250
4,124ms
6 Nov 2025
Kaprekar Numbers
retrohun
234
2,387ms
23 Oct 2025
Kaprekar Numbers
robin-scragg
252
3,517ms
23 Oct 2025
Kaprekar Numbers
luuumine
190
4,751ms
13 Oct 2025
Kaprekar Numbers
jameswmccarty
234
2,514ms
12 Oct 2025
Kaprekar Numbers
StefanHabel
158
4,970ms
2 Oct 2025
Kaprekar Numbers
InigoK
143
1,305ms
19 Sep 2025
Kaprekar Numbers
duckyluuk
171
4,439ms
2 Sep 2025
Kaprekar Numbers
madeforlosers
237
2,158ms
26 Aug 2025
Kaprekar Numbers
Mikey-Beep
274
2,302ms
24 Aug 2025
Kaprekar Numbers
CaedenHarper
103
4,144ms
10 Aug 2025
Kaprekar Numbers
muser-logiccpu
458
9ms
9 Aug 2025
Kaprekar Numbers
Flekay
325
9ms
8 Aug 2025
Kaprekar Numbers
Unknownuserfrommars
452
10ms
5 Aug 2025
Kaprekar Numbers
albanian-laundromat
133
2,484ms
4 Aug 2025
Kaprekar Numbers
BREMAUCY
147
4,580ms
26 Jul 2025
Kaprekar Numbers
vgamula
452
11ms
25 Jul 2025
Kaprekar Numbers
SectorCorruptor
452
10ms
24 Jul 2025
Kaprekar Numbers
SirBogman
89
4,523ms
22 Jul 2025
Kaprekar Numbers
KasperKivimaeki
457
10ms
15 Jul 2025
Kaprekar Numbers
anter69
101
3,851ms
14 Jul 2025
Kaprekar Numbers
fkantelberg
232
1,918ms
12 Jul 2025
Kaprekar Numbers
RaBa21
249
4,232ms
6 Jul 2025
Kaprekar Numbers
hallvabo
🥉
77
4,894ms
11 Jun 2025
Kaprekar Numbers
commandz0
171
4,703ms
1 Jun 2025
Kaprekar Numbers
guilhem-roy
163
3,698ms
29 May 2025
Kaprekar Numbers
5cw
84
2,108ms
29 May 2025
Kaprekar Numbers
andrewjc2000
97
4,055ms
21 May 2025
Kaprekar Numbers
4atj
80
4,892ms
19 Apr 2025
Kaprekar Numbers
bricknellj
147
3,445ms
16 Apr 2025
Kaprekar Numbers
zacjl
🥇
71
2,138ms
10 Apr 2025
Kaprekar Numbers
moustave
452
10ms
9 Apr 2025
Kaprekar Numbers
calebaitken
144
2,724ms
9 Apr 2025
Kaprekar Numbers
Jaydosu
232
4,855ms
9 Apr 2025
Kaprekar Numbers
rollershutter
279
2,553ms
8 Apr 2025
Kaprekar Numbers
scpchicken
174
3,429ms
17 Feb 2025
Kaprekar Numbers
kevinnaviapaiva
293
4,876ms
13 Feb 2025
Kaprekar Numbers
sciencejiho
915
10ms
12 Feb 2025
Kaprekar Numbers
CLOStrophobic
356
4,507ms
9 Feb 2025
Kaprekar Numbers
m-tkach
86
3,269ms
4 Feb 2025
Kaprekar Numbers
mathisfun271
452
10ms
25 Jan 2025
Kaprekar Numbers
croc54
170
2,733ms
9 Jan 2025
Kaprekar Numbers
maxgodfrey2004
280
2,540ms
4 Jan 2025
Kaprekar Numbers
AidanWalter
915
11ms
3 Jan 2025
Kaprekar Numbers
CatsAreFluffy
165
4,967ms
15 Dec 2024
Kaprekar Numbers
dokutan
258
1,685ms
10 Dec 2024
Kaprekar Numbers
adamnielson42
395
4,427ms
3 Dec 2024
Kaprekar Numbers
emgordon154
161
4,655ms
27 Nov 2024
Kaprekar Numbers
roguh
452
9ms
27 Nov 2024
Kaprekar Numbers
btjones0
138
4,995ms
21 Nov 2024
Kaprekar Numbers
JunkIce
449
9ms
21 Nov 2024
Kaprekar Numbers
rucin93
163
4,452ms
17 Nov 2024
Kaprekar Numbers
JesseNoEyes
301
3,502ms
17 Nov 2024
Kaprekar Numbers
neihousaigaai
225
1,976ms
15 Nov 2024
Kaprekar Numbers
lifthrasiir
84
2,528ms
14 Nov 2024