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
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
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
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
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
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
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Erlang
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
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
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
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
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
DFA Simulator
bitsandbeyond
🥈
123
4,214ms
24 hours ago
DFA Simulator
madeforlosers
239
10ms
42 hours ago
DFA Simulator
CaedenHarper
391
303ms
2 days ago
DFA Simulator
luuumine
230
11ms
6 days ago
DFA Simulator
ryyyn
157
57ms
7 days ago
DFA Simulator
CornerMercury
236
11ms
9 days ago
DFA Simulator
emgordon154
160
11ms
11 days ago
DFA Simulator
emgordon154
🥉
67
59ms
11 days ago
DFA Simulator
jkelly467
383
4,727ms
13 days ago
DFA Simulator
aiwana
248
15ms
16 days ago
DFA Simulator
albanian-laundromat
🥈
268
46ms
17 days ago
DFA Simulator
snoozingnewt
🥈
239
87ms
17 days ago
DFA Simulator
snoozingnewt
220
2,297ms
18 days ago
DFA Simulator
snoozingnewt
🥉
574
344ms
18 days ago
DFA Simulator
snoozingnewt
240
25ms
18 days ago
DFA Simulator
snoozingnewt
🥉
194
1,066ms
18 days ago
DFA Simulator
snoozingnewt
330
147ms
18 days ago
DFA Simulator
snoozingnewt
307
325ms
18 days ago
DFA Simulator
snoozingnewt
185
967ms
18 days ago
DFA Simulator
snoozingnewt
267
5ms
18 days ago
DFA Simulator
snoozingnewt
🥉
442
6ms
18 days ago
DFA Simulator
snoozingnewt
530
141ms
18 days ago
DFA Simulator
snoozingnewt
345
195ms
18 days ago
DFA Simulator
snoozingnewt
157
38ms
18 days ago
DFA Simulator
snoozingnewt
298
422ms
18 days ago
DFA Simulator
snoozingnewt
243
5ms
18 days ago
DFA Simulator
snoozingnewt
207
4ms
18 days ago
DFA Simulator
snoozingnewt
🥉
457
36ms
18 days ago
DFA Simulator
snoozingnewt
364
3ms
18 days ago
DFA Simulator
snoozingnewt
177
329ms
18 days ago
DFA Simulator
snoozingnewt
247
11ms
18 days ago
DFA Simulator
snoozingnewt
374
361ms
18 days ago
DFA Simulator
snoozingnewt
303
273ms
18 days ago
DFA Simulator
snoozingnewt
🥉
492
48ms
18 days ago
DFA Simulator
snoozingnewt
323
127ms
18 days ago
DFA Simulator
snoozingnewt
🥉
220
554ms
18 days ago
DFA Simulator
snoozingnewt
395
2,931ms
18 days ago
DFA Simulator
snoozingnewt
199
448ms
18 days ago
DFA Simulator
snoozingnewt
491
3ms
18 days ago
DFA Simulator
snoozingnewt
🥉
354
71ms
18 days ago
DFA Simulator
snoozingnewt
418
148ms
18 days ago
DFA Simulator
snoozingnewt
958
29ms
18 days ago
DFA Simulator
snoozingnewt
🥉
538
1,302ms
18 days ago
DFA Simulator
iczelia
308
11ms
18 days ago
DFA Simulator
CaedenHarper
436
397ms
18 days ago
DFA Simulator
blaztoma
226
15ms
23 days ago
DFA Simulator
Emutis
187
16ms
23 days ago
DFA Simulator
madex
608
4ms
8 Oct 2025
DFA Simulator
madex
625
319ms
8 Oct 2025
DFA Simulator
madex
310
13ms
8 Oct 2025
DFA Simulator
CaedenHarper
489
382ms
7 Oct 2025
DFA Simulator
stefangimmillaro
🥉
233
649ms
6 Oct 2025
DFA Simulator
emgordon154
💎
400
848ms
4 Oct 2025
DFA Simulator
emgordon154
🥈
201
591ms
1 Oct 2025
DFA Simulator
emgordon154
125
1,051ms
28 Sep 2025
DFA Simulator
edsrzf
💎
125
1,230ms
28 Sep 2025
DFA Simulator
albanian-laundromat
🥈
133
970ms
28 Sep 2025
DFA Simulator
Schmitt-Very-Cool
462
532ms
26 Sep 2025
DFA Simulator
emgordon154
🦄
420
1,913ms
26 Sep 2025
DFA Simulator
sean-niemann
324
455ms
24 Sep 2025
DFA Simulator
Shanethegamer
🥈
215
491ms
24 Sep 2025
DFA Simulator
edsrzf
💎
214
500ms
24 Sep 2025
DFA Simulator
CaedenHarper
215
672ms
21 Sep 2025
DFA Simulator
CaedenHarper
218
21ms
21 Sep 2025
DFA Simulator
CaedenHarper
208
1,432ms
20 Sep 2025
DFA Simulator
albanian-laundromat
168
12ms
16 Sep 2025
DFA Simulator
CaedenHarper
236
11ms
15 Sep 2025
DFA Simulator
InigoK
169
13ms
11 Sep 2025
DFA Simulator
qpwoeirut
166
12ms
11 Sep 2025
DFA Simulator
Yax42
208
13ms
9 Sep 2025
DFA Simulator
kkoenig
306
290ms
7 Sep 2025
DFA Simulator
commandblockguy
175
747ms
1 Sep 2025
DFA Simulator
edsrzf
🥈
158
3,180ms
30 Aug 2025
DFA Simulator
MeWhenI
221
1,069ms
30 Aug 2025
DFA Simulator
edsrzf
🥈
173
4ms
28 Aug 2025