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
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
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
Calendar
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
Multitap Input
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
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
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
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
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
Calendar
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
Multitap Input
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
Roman to Arabic
CaedenHarper
87
592ms
2 days ago
Roman to Arabic
TomvdPeet
129
29ms
3 days ago
Roman to Arabic
sean-niemann
🥇
104
29ms
3 days ago
Roman to Arabic
rucin93
118
36ms
3 days ago
Roman to Arabic
FortuiteMan
🥇
35
79ms
4 days ago
Roman to Arabic
CornerMercury
🥇
35
82ms
4 days ago
Roman to Arabic
FortuiteMan
🥈
142
102ms
6 days ago
Roman to Arabic
albanian-laundromat
🥈
242
126ms
8 days ago
Roman to Arabic
snoozingnewt
89
22ms
10 days ago
Roman to Arabic
snoozingnewt
85
400ms
10 days ago
Roman to Arabic
DialFrost
💎
108
125ms
10 days ago
Roman to Arabic
KatieLG
84,953
1,360ms
10 days ago
Roman to Arabic
ScottHamper
🥈
111
634ms
10 days ago
Roman to Arabic
KatieLG
42,051
3,262ms
10 days ago
Roman to Arabic
h3ra993huskp
194
609ms
11 days ago
Roman to Arabic
Lv0Sys
110
13ms
11 days ago
Roman to Arabic
Lv0Sys
129
21ms
12 days ago
Roman to Arabic
JOrE20
🥉
527
148ms
13 days ago
Roman to Arabic
tomh1012
301
408ms
13 days ago
Roman to Arabic
AidanWalter
1,011
240ms
14 days ago
Roman to Arabic
AidanWalter
1,053
154ms
14 days ago
Roman to Arabic
AidanWalter
1,065
4ms
14 days ago
Roman to Arabic
edsrzf
101
6ms
16 days ago
Roman to Arabic
TheZwierzLF
131
1,249ms
16 days ago
Roman to Arabic
JOrE20
92
548ms
17 days ago
Roman to Arabic
aksyristos
637
133ms
18 days ago
Roman to Arabic
aksyristos
468
462ms
18 days ago
Roman to Arabic
aksyristos
939
3ms
18 days ago
Roman to Arabic
CommandLeo
118
218ms
18 days ago
Roman to Arabic
snoozingnewt
125
7ms
18 days ago
Roman to Arabic
Schmitt-Very-Cool
905
516ms
18 days ago
Roman to Arabic
blaztoma
109
17ms
18 days ago
Roman to Arabic
blaztoma
61
164ms
18 days ago
Roman to Arabic
blaztoma
70
39ms
18 days ago
Roman to Arabic
kumavale
🥉
131
172ms
19 days ago
Roman to Arabic
scpchicken
662
156ms
19 days ago
Roman to Arabic
scpchicken
755
163ms
19 days ago
Roman to Arabic
scpchicken
651
4ms
19 days ago
Roman to Arabic
Schmitt-Very-Cool
486
154ms
19 days ago
Roman to Arabic
Schmitt-Very-Cool
456
3ms
19 days ago
Roman to Arabic
aalec
213
27ms
19 days ago
Roman to Arabic
Zach1031
305
158ms
19 days ago
Roman to Arabic
Zach1031
405
4ms
19 days ago
Roman to Arabic
Zach1031
290
125ms
19 days ago
Roman to Arabic
KatieLG
68,995
16ms
19 days ago
Roman to Arabic
M4rc0g1
156
21ms
19 days ago
Roman to Arabic
JayXon
🥇
104
28ms
20 days ago
Roman to Arabic
snoozingnewt
164
114ms
20 days ago
Roman to Arabic
qpwoeirut
123
27ms
21 days ago
Roman to Arabic
CaedenHarper
181
62ms
25 days ago
Roman to Arabic
CaedenHarper
144
4ms
25 days ago
Roman to Arabic
CaedenHarper
148
275ms
25 days ago
Roman to Arabic
gigaprofisi
252
772ms
25 days ago
Roman to Arabic
gigaprofisi
267
3ms
25 days ago
Roman to Arabic
retrohun
253
125ms
25 days ago
Roman to Arabic
retrohun
201
161ms
25 days ago
Roman to Arabic
Yewzir
74
1,026ms
25 days ago
Roman to Arabic
retrohun
229
3ms
25 days ago
Roman to Arabic
JOrE20
1,001
143ms
25 days ago
Roman to Arabic
JOrE20
1,073
184ms
25 days ago
Roman to Arabic
JOrE20
1,177
4ms
25 days ago
Roman to Arabic
SB-945
594
5ms
25 days ago
Roman to Arabic
SB-945
492
481ms
25 days ago
Roman to Arabic
Yewzir
130
390ms
26 days ago
Roman to Arabic
lynn
133
265ms
26 days ago
Roman to Arabic
Yewzir
🥉
213
2,776ms
27 days ago
Roman to Arabic
dokutan
138
148ms
27 days ago
Roman to Arabic
dokutan
139
473ms
27 days ago
Roman to Arabic
edsrzf
118
40ms
12 Nov 2025
Roman to Arabic
Papushkado
163
19ms
10 Nov 2025
Roman to Arabic
HumanoidCPU
242
126ms
10 Nov 2025
Roman to Arabic
blaztoma
237
132ms
9 Nov 2025
Roman to Arabic
blaztoma
174
191ms
9 Nov 2025
Roman to Arabic
blaztoma
239
4ms
9 Nov 2025
Roman to Arabic
BREMAUCY
247
142ms
8 Nov 2025