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
Continued Fractions
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
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
><>
ALGOL 68
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
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
><>
ALGOL 68
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
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
Continued Fractions
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
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
Hexdump
edsrzf
🦄
253
10ms
31 mins ago
Hexdump
KatieLG
114
10ms
36 hours ago
Hexdump
dokutan
6,337
2,310ms
2 days ago
Hexdump
dokutan
6,335
672ms
2 days ago
Hexdump
dokutan
6,361
383ms
2 days ago
Hexdump
dokutan
6,336
1,406ms
2 days ago
Hexdump
dokutan
6,285
543ms
2 days ago
Hexdump
Lv0Sys
138
10ms
2 days ago
Hexdump
Lv0Sys
224
11ms
2 days ago
Hexdump
Aquateraneal
167
10ms
3 days ago
Hexdump
tomh1012
248
426ms
4 days ago
Hexdump
tomh1012
250
11ms
4 days ago
Hexdump
bitsandbeyond
💎
86
445ms
6 days ago
Hexdump
canissimia
💎
147
2ms
6 days ago
Hexdump
JOrE20
🥉
340
67ms
8 days ago
Hexdump
JOrE20
13,458
17ms
8 days ago
Hexdump
sean-niemann
🥉
113
926ms
8 days ago
Hexdump
snoozingnewt
94
10ms
9 days ago
Hexdump
snoozingnewt
90
426ms
9 days ago
Hexdump
frankgraziano
💎
144
23ms
12 days ago
Hexdump
Steffan153
🥈
112
828ms
12 days ago
Hexdump
Flekay
95
10ms
14 days ago
Hexdump
edsrzf
💎
249
33ms
19 days ago
Hexdump
dokutan
265
2,844ms
19 days ago
Hexdump
DialFrost
🥉
190
466ms
19 days ago
Hexdump
attila8192
227
10ms
19 days ago
Hexdump
ryyyn
137
10ms
20 days ago
Hexdump
dokutan
160
61ms
21 days ago
Hexdump
snoozingnewt
🥉
188
79ms
21 days ago
Hexdump
elgan65536
284
181ms
22 days ago
Hexdump
JOrE20
156
10ms
22 days ago
Hexdump
snoozingnewt
🥈
237
101ms
24 days ago
Hexdump
edsrzf
🥉
119
1,485ms
30 Jan 2026
Hexdump
MeWhenI
239
570ms
27 Jan 2026
Hexdump
edsrzf
💎
221
109ms
27 Jan 2026
Hexdump
edsrzf
💎
224
523ms
27 Jan 2026
Hexdump
edsrzf
💎
236
117ms
23 Jan 2026
Hexdump
arcpolaris
220
485ms
15 Jan 2026
Hexdump
IISResetMe
166
268ms
14 Jan 2026
Hexdump
KatieLG
121
355ms
7 Jan 2026
Hexdump
sunleonid
🥇
92
31ms
2 Jan 2026
Hexdump
CommandLeo
149
10ms
1 Jan 2026
Hexdump
plcc0
110
10ms
30 Dec 2025
Hexdump
Maashau
250
2ms
30 Dec 2025
Hexdump
FlyingPenguin223
279
2ms
29 Dec 2025
Hexdump
Protothor
221
10ms
27 Dec 2025
Hexdump
Bmrl7
197
17ms
26 Dec 2025
Hexdump
2bular
57
29ms
26 Dec 2025
Hexdump
TheZwierzLF
195
38ms
25 Dec 2025
Hexdump
michelebastione
226
425ms
25 Dec 2025
Hexdump
albanian-laundromat
263
47ms
24 Dec 2025
Hexdump
kaascevich
282
725ms
23 Dec 2025
Hexdump
DialFrost
200
2ms
23 Dec 2025
Hexdump
ravnskjaer
562
482ms
15 Dec 2025
Hexdump
prestosilver
197
2ms
12 Dec 2025
Hexdump
TheZwierzLF
222
707ms
11 Dec 2025
Hexdump
rucin93
196
4ms
8 Dec 2025
Hexdump
Lv0Sys
125
37ms
7 Dec 2025
Hexdump
Lv0Sys
225
3ms
6 Dec 2025
Hexdump
kmathis22
320
718ms
4 Dec 2025
Hexdump
DialFrost
🥉
240
116ms
3 Dec 2025
Hexdump
sean-niemann
🥈
168
521ms
2 Dec 2025
Hexdump
sean-niemann
138
10ms
2 Dec 2025
Hexdump
ScottHamper
🥉
235
493ms
30 Nov 2025
Hexdump
h3ra993huskp
310
517ms
30 Nov 2025
Hexdump
kg583
🥈
124
37ms
29 Nov 2025
Hexdump
ndren
96
11ms
26 Nov 2025
Hexdump
jatloe
5,203
12ms
24 Nov 2025
Hexdump
koipondx86
477
4ms
24 Nov 2025
Hexdump
CornerMercury
95
10ms
24 Nov 2025
Hexdump
KatieLG
6,313
4ms
21 Nov 2025
Hexdump
edsrzf
162
4ms
21 Nov 2025
Hexdump
themoonisacheese
44
760ms
20 Nov 2025
Hexdump
snoozingnewt
358
680ms
20 Nov 2025
Hexdump
dahrens
272
11ms
19 Nov 2025
Hexdump
DialFrost
💎
186
3ms
19 Nov 2025
Hexdump
te-chnical
234
12ms
18 Nov 2025
Hexdump
JayXon
🥇
218
201ms
18 Nov 2025
Hexdump
kumavale
🥇
218
219ms
18 Nov 2025
Hexdump
emgordon154
🥈
64
51ms
16 Nov 2025