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
Chars
Time
Submitted
Repeating Decimals
dokutan
177
62ms
22 hours ago
Repeating Decimals
JOrE20
🥈
414
26ms
47 hours ago
Repeating Decimals
JOrE20
150
11ms
47 hours ago
Repeating Decimals
emgordon154
🥉
318
116ms
7 days ago
Repeating Decimals
Andrey2001
300
18ms
9 days ago
Repeating Decimals
kg583
💎
146
6ms
15 days ago
Repeating Decimals
Yax42
186
9ms
19 days ago
Repeating Decimals
tomh1012
465
412ms
20 days ago
Repeating Decimals
Matter1024
170
63ms
21 days ago
Repeating Decimals
JesseNoEyes
302
11ms
21 days ago
Repeating Decimals
codewrite
370
426ms
22 days ago
Repeating Decimals
Matter1024
245
2,342ms
22 days ago
Repeating Decimals
alexsave
210
10ms
23 days ago
Repeating Decimals
Matter1024
210
15ms
24 days ago
Repeating Decimals
KatieLG
60
483ms
12 Jan 2026
Repeating Decimals
canissimia
💎
103
7ms
8 Jan 2026
Repeating Decimals
TheZwierzLF
276
35ms
5 Jan 2026
Repeating Decimals
rhdqor213
💎
156
2ms
2 Jan 2026
Repeating Decimals
snoozingnewt
💎
238
122ms
17 Dec 2025
Repeating Decimals
blaztoma
112
40ms
17 Dec 2025
Repeating Decimals
blaztoma
110
19ms
17 Dec 2025
Repeating Decimals
blaztoma
🥈
240
128ms
17 Dec 2025
Repeating Decimals
blaztoma
144
9ms
17 Dec 2025
Repeating Decimals
CaedenHarper
181
537ms
17 Dec 2025
Repeating Decimals
driri85
259
11ms
15 Dec 2025
Repeating Decimals
edsrzf
🥇
92
19ms
14 Dec 2025
Repeating Decimals
edsrzf
🥇
93
2,045ms
14 Dec 2025
Repeating Decimals
TheZwierzLF
807
497ms
14 Dec 2025
Repeating Decimals
kmathis22
288
548ms
8 Dec 2025
Repeating Decimals
rucin93
🥈
198
3ms
8 Dec 2025
Repeating Decimals
HPWiz
110
28ms
8 Dec 2025
Repeating Decimals
TheZwierzLF
321
11ms
7 Dec 2025
Repeating Decimals
albanian-laundromat
300
188ms
7 Dec 2025
Repeating Decimals
TheZwierzLF
312
697ms
7 Dec 2025
Repeating Decimals
Lv0Sys
229
11ms
7 Dec 2025
Repeating Decimals
albanian-laundromat
💎
248
43ms
3 Dec 2025
Repeating Decimals
CornerMercury
94
22ms
1 Dec 2025
Repeating Decimals
h3ra993huskp
332
486ms
30 Nov 2025
Repeating Decimals
tigerdan2
332
495ms
30 Nov 2025
Repeating Decimals
FortuiteMan
196
13ms
27 Nov 2025
Repeating Decimals
sunleonid
🥇
80
22ms
27 Nov 2025
Repeating Decimals
IISResetMe
195
319ms
27 Nov 2025
Repeating Decimals
ndren
105
22ms
25 Nov 2025
Repeating Decimals
snoozingnewt
💎
243
120ms
25 Nov 2025
Repeating Decimals
edsrzf
247
282ms
24 Nov 2025
Repeating Decimals
luuumine
146
11ms
24 Nov 2025
Repeating Decimals
DialFrost
🥉
236
117ms
23 Nov 2025
Repeating Decimals
snoozingnewt
120
433ms
20 Nov 2025
Repeating Decimals
snoozingnewt
124
11ms
20 Nov 2025
Repeating Decimals
GrayJoKing
💎
207
22ms
20 Nov 2025
Repeating Decimals
duckyluuk
🥈
229
18ms
20 Nov 2025
Repeating Decimals
Yax42
246
391ms
19 Nov 2025
Repeating Decimals
emgordon154
💎
52
341ms
18 Nov 2025
Repeating Decimals
KasperKivimaeki
🥉
183
2ms
9 Nov 2025
Repeating Decimals
MeWhenI
💎
487
1,719ms
7 Nov 2025
Repeating Decimals
MeWhenI
271
519ms
7 Nov 2025
Repeating Decimals
CaedenHarper
240
401ms
6 Nov 2025
Repeating Decimals
CaedenHarper
275
490ms
6 Nov 2025
Repeating Decimals
CaedenHarper
168
9ms
6 Nov 2025
Repeating Decimals
CaedenHarper
193
33ms
6 Nov 2025
Repeating Decimals
CaedenHarper
🥉
245
302ms
6 Nov 2025
Repeating Decimals
gigaprofisi
714
558ms
6 Nov 2025
Repeating Decimals
snoozingnewt
55
146ms
4 Nov 2025
Repeating Decimals
zacjl
🥈
72
3ms
2 Nov 2025
Repeating Decimals
ovs-code
💎
71
3ms
2 Nov 2025
Repeating Decimals
Babafaba
125
403ms
25 Oct 2025
Repeating Decimals
Babafaba
125
12ms
25 Oct 2025
Repeating Decimals
iczelia
204
10ms
25 Oct 2025
Repeating Decimals
dokutan
169
11ms
24 Oct 2025
Repeating Decimals
dokutan
169
362ms
24 Oct 2025
Repeating Decimals
targrik
178
10ms
23 Oct 2025
Repeating Decimals
albanian-laundromat
🥈
472
1,422ms
23 Oct 2025
Repeating Decimals
albanian-laundromat
132
1,303ms
23 Oct 2025
Repeating Decimals
albanian-laundromat
💎
215
5ms
23 Oct 2025
Repeating Decimals
ryyyn
144
17ms
20 Oct 2025
Repeating Decimals
snoozingnewt
🥈
204
91ms
19 Oct 2025
Repeating Decimals
nstearns96
311
13ms
13 Oct 2025
Repeating Decimals
CaedenHarper
🥈
1,118
1,682ms
12 Oct 2025
Repeating Decimals
robin-scragg
179
11ms
10 Oct 2025
Repeating Decimals
bitsandbeyond
💎
97
409ms
7 Oct 2025