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
Arabic to Roman
Flekay
146
21ms
7 hours ago
Arabic to Roman
Steffan153
💎
95
1,261ms
30 hours ago
Arabic to Roman
Steffan153
💎
132
13ms
32 hours ago
Arabic to Roman
Steffan153
🥈
129
2,798ms
3 days ago
Arabic to Roman
Steffan153
118
441ms
3 days ago
Arabic to Roman
Steffan153
🥈
175
33ms
4 days ago
Arabic to Roman
Steffan153
🥉
112
13ms
4 days ago
Arabic to Roman
Yewzir
228
7ms
4 days ago
Arabic to Roman
Shanethegamer
221
31ms
5 days ago
Arabic to Roman
m-tkach
🥉
199
31ms
6 days ago
Arabic to Roman
dokutan
187
72ms
7 days ago
Arabic to Roman
frankgraziano
233
26ms
7 days ago
Arabic to Roman
dokutan
141
1,290ms
12 days ago
Arabic to Roman
not-a-pokemon
🥇
49
19ms
12 days ago
Arabic to Roman
dokutan
205
2,388ms
13 days ago
Arabic to Roman
dokutan
171
11ms
13 days ago
Arabic to Roman
dokutan
489
13ms
13 days ago
Arabic to Roman
edsrzf
💎
169
34ms
13 days ago
Arabic to Roman
dokutan
318
74ms
14 days ago
Arabic to Roman
dokutan
178
16ms
14 days ago
Arabic to Roman
dokutan
158
522ms
14 days ago
Arabic to Roman
dokutan
175
25ms
14 days ago
Arabic to Roman
isaiah0311
235
11ms
15 days ago
Arabic to Roman
bpharaldsson
240
42ms
15 days ago
Arabic to Roman
bpharaldsson
259
410ms
15 days ago
Arabic to Roman
sean-niemann
110
1,159ms
19 days ago
Arabic to Roman
trinityy-7
147
17ms
20 days ago
Arabic to Roman
Soyo-Wind
252
439ms
22 days ago
Arabic to Roman
ovs-code
78
29ms
22 days ago
Arabic to Roman
Yax42
251
10ms
23 days ago
Arabic to Roman
amazingalek
438
368ms
25 days ago
Arabic to Roman
alexsave
158
18ms
14 Jan 2026
Arabic to Roman
bzijlema
147
49ms
14 Jan 2026
Arabic to Roman
dokutan
202
620ms
13 Jan 2026
Arabic to Roman
jkelly467
190
2,631ms
12 Jan 2026
Arabic to Roman
plcc0
156
48ms
12 Jan 2026
Arabic to Roman
qrakhen
232
400ms
12 Jan 2026
Arabic to Roman
dokutan
280
25ms
11 Jan 2026
Arabic to Roman
commandz0
134
54ms
10 Jan 2026
Arabic to Roman
NicoBliss
182
39ms
10 Jan 2026
Arabic to Roman
Florian-Mt
352
212ms
10 Jan 2026
Arabic to Roman
Florian-Mt
298
510ms
10 Jan 2026
Arabic to Roman
jkelly467
58
42ms
9 Jan 2026
Arabic to Roman
nemoyatpeace
191
26ms
8 Jan 2026
Arabic to Roman
Louis7728
408
2,176ms
8 Jan 2026
Arabic to Roman
TeodorDyakov
230
619ms
8 Jan 2026
Arabic to Roman
ethanlally
207
483ms
8 Jan 2026
Arabic to Roman
TheZwierzLF
136
78ms
7 Jan 2026
Arabic to Roman
Pyroan
174
22ms
5 Jan 2026
Arabic to Roman
JOrE20
161
18ms
4 Jan 2026
Arabic to Roman
JOrE20
72,946
7ms
3 Jan 2026
Arabic to Roman
DialFrost
🥇
73
33ms
2 Jan 2026
Arabic to Roman
Macweese
280
2,440ms
1 Jan 2026
Arabic to Roman
Crabbex
233
20ms
30 Dec 2025
Arabic to Roman
prestosilver
185
333ms
30 Dec 2025
Arabic to Roman
IISResetMe
173
975ms
29 Dec 2025
Arabic to Roman
JOrE20
50
19ms
29 Dec 2025
Arabic to Roman
JOrE20
350
27ms
26 Dec 2025
Arabic to Roman
NoneTheFewer
268
20ms
25 Dec 2025
Arabic to Roman
KatieLG
248
9ms
24 Dec 2025
Arabic to Roman
sisyphus-ppcg
🥇
40
98ms
23 Dec 2025
Arabic to Roman
CommandLeo
151
36ms
22 Dec 2025
Arabic to Roman
Lv0Sys
146
21ms
21 Dec 2025
Arabic to Roman
deopea-david
392
469ms
20 Dec 2025
Arabic to Roman
logalex8369
222
27ms
19 Dec 2025
Arabic to Roman
kmathis22
217
716ms
19 Dec 2025
Arabic to Roman
blaztoma
🥇
49
18ms
19 Dec 2025
Arabic to Roman
dgambit
207
20ms
16 Dec 2025
Arabic to Roman
jessegyger
737
8ms
15 Dec 2025
Arabic to Roman
ravnskjaer
284
541ms
15 Dec 2025
Arabic to Roman
TheZwierzLF
161
591ms
13 Dec 2025
Arabic to Roman
TheZwierzLF
216
61ms
13 Dec 2025
Arabic to Roman
edsrzf
💎
161
130ms
13 Dec 2025
Arabic to Roman
snoozingnewt
🥈
180
114ms
13 Dec 2025
Arabic to Roman
snoozingnewt
141
634ms
12 Dec 2025
Arabic to Roman
snoozingnewt
149
31ms
12 Dec 2025
Arabic to Roman
iliaspapa
330
20ms
10 Dec 2025
Arabic to Roman
greentruff
205
20ms
7 Dec 2025
Arabic to Roman
CornerMercury
🥇
40
95ms
7 Dec 2025
Arabic to Roman
FortuiteMan
152
22ms
6 Dec 2025