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
Number Spiral
frankgraziano
203
9ms
34 hours ago
Number Spiral
dokutan
146
64ms
36 hours ago
Number Spiral
emgordon154
169
75ms
2 days ago
Number Spiral
Shanethegamer
307
6ms
2 days ago
Number Spiral
ovs-code
33
3ms
2 days ago
Number Spiral
Shanethegamer
312
2ms
2 days ago
Number Spiral
emgordon154
114
2ms
2 days ago
Number Spiral
2bular
💎
23
40ms
2 days ago
Number Spiral
HumanoidCPU
312
2ms
4 days ago
Number Spiral
JOrE20
170
11ms
4 days ago
Number Spiral
TheSecondComing123
164
10ms
5 days ago
Number Spiral
Andrey2001
246
17ms
8 days ago
Number Spiral
blaztoma
37
2ms
10 days ago
Number Spiral
Andrey2001
244
2ms
11 days ago
Number Spiral
Andrey2001
247
582ms
11 days ago
Number Spiral
CornerMercury
65
2ms
12 days ago
Number Spiral
commandz0
33
3ms
13 days ago
Number Spiral
kg583
💎
103
4ms
16 days ago
Number Spiral
dokutan
133
76ms
17 days ago
Number Spiral
retrohun
491
1,688ms
18 days ago
Number Spiral
Yax42
129
9ms
20 days ago
Number Spiral
codewrite
250
419ms
22 days ago
Number Spiral
edsrzf
152
7ms
23 days ago
Number Spiral
nemoyatpeace
162
10ms
24 days ago
Number Spiral
AngelSinigersky
253
39ms
24 days ago
Number Spiral
AngelSinigersky
638
1,129ms
24 days ago
Number Spiral
Yax42
150
382ms
27 days ago
Number Spiral
Yax42
134
480ms
27 days ago
Number Spiral
dokutan
174
9ms
11 Jan 2026
Number Spiral
BlankSpruce
171
60ms
9 Jan 2026
Number Spiral
KatieLG-Transpiler
312
2ms
9 Jan 2026
Number Spiral
KatieLG-Transpiler
317
9ms
9 Jan 2026
Number Spiral
KatieLG-Transpiler
315
3ms
9 Jan 2026
Number Spiral
sean-niemann
75
406ms
7 Jan 2026
Number Spiral
sean-niemann
76
10ms
7 Jan 2026
Number Spiral
michaelmoynihan
111
9ms
5 Jan 2026
Number Spiral
mwarvik
318
368ms
5 Jan 2026
Number Spiral
amazingalek
168
423ms
5 Jan 2026
Number Spiral
kg583
174
40ms
4 Jan 2026
Number Spiral
averagepythondev
312
10ms
2 Jan 2026
Number Spiral
HumanoidCPU
308
5ms
1 Jan 2026
Number Spiral
CaedenHarper
111
439ms
1 Jan 2026
Number Spiral
sean-niemann
72
36ms
30 Dec 2025
Number Spiral
dokutan
304
131ms
29 Dec 2025
Number Spiral
Maashau
316
2ms
29 Dec 2025
Number Spiral
dokutan
246
120ms
27 Dec 2025
Number Spiral
Emutis
184
10ms
27 Dec 2025
Number Spiral
blaztoma
294
7ms
27 Dec 2025
Number Spiral
blaztoma
95
13ms
27 Dec 2025
Number Spiral
blaztoma
266
26ms
27 Dec 2025
Number Spiral
blaztoma
205
42ms
27 Dec 2025
Number Spiral
blaztoma
🥉
217
134ms
27 Dec 2025
Number Spiral
dokutan
280
412ms
27 Dec 2025
Number Spiral
dokutan
138
17ms
27 Dec 2025
Number Spiral
dokutan
138
466ms
27 Dec 2025
Number Spiral
HumanoidCPU
191
846ms
27 Dec 2025
Number Spiral
dokutan
🥉
148
2ms
26 Dec 2025
Number Spiral
targrik
🥈
102
5ms
26 Dec 2025
Number Spiral
Lv0Sys
151
10ms
25 Dec 2025
Number Spiral
Shanethegamer
320
3ms
25 Dec 2025
Number Spiral
emgordon154
🥈
213
1,694ms
24 Dec 2025
Number Spiral
alexsave
166
10ms
24 Dec 2025
Number Spiral
JOrE20
285
10ms
24 Dec 2025
Number Spiral
HumanoidCPU
140
3ms
24 Dec 2025
Number Spiral
HumanoidCPU
141
2ms
24 Dec 2025
Number Spiral
Bmrl7
242
14ms
22 Dec 2025
Number Spiral
TheZwierzLF
179
38ms
21 Dec 2025
Number Spiral
MeWhenI
102
12ms
19 Dec 2025
Number Spiral
Mukundan314
69
10ms
16 Dec 2025
Number Spiral
ravnskjaer
280
444ms
15 Dec 2025
Number Spiral
ryyyn
100
11ms
15 Dec 2025
Number Spiral
dokutan
233
113ms
12 Dec 2025
Number Spiral
edsrzf
140
37ms
11 Dec 2025
Number Spiral
edsrzf
137
9ms
11 Dec 2025
Number Spiral
kurkale6ka
302
410ms
11 Dec 2025
Number Spiral
CaedenHarper
161
271ms
11 Dec 2025
Number Spiral
dokutan
165
780ms
10 Dec 2025
Number Spiral
YAJUE114514
112
10ms
10 Dec 2025
Number Spiral
edsrzf
101
12ms
9 Dec 2025
Number Spiral
emplv
🥉
103
7ms
8 Dec 2025