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
Gray Code Decoder
Gray Code Encoder
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
ALGOL 68
ArkScript
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
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
ArkScript
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
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
Gray Code Decoder
Gray Code Encoder
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Diamonds
LostSyntax21
229
335ms
26 days ago
Diamonds
Ripick
315
323ms
26 days ago
Diamonds
Carlos-EAC
1,150
303ms
27 days ago
Diamonds
elgan65536
1,240
330ms
14 Mar 2026
Diamonds
jared-hughes
234
321ms
14 Mar 2026
Diamonds
AstroOrbis
684
323ms
13 Mar 2026
Diamonds
KasperKivimaeki
172
377ms
12 Mar 2026
Diamonds
madex
204
321ms
10 Mar 2026
Diamonds
ndren
1,191
312ms
10 Mar 2026
Diamonds
BREMAUCY
250
363ms
10 Mar 2026
Diamonds
Protothor
242
372ms
10 Mar 2026
Diamonds
targrik
1,243
365ms
10 Mar 2026
Diamonds
CornerMercury
155
365ms
10 Mar 2026
Diamonds
aksyristos
404
328ms
9 Mar 2026
Diamonds
Andriamanitra
224
321ms
9 Mar 2026
Diamonds
Lv0Sys
414
432ms
9 Mar 2026
Diamonds
Openstreetmapler
1,152
313ms
9 Mar 2026
Diamonds
tomh1012
267
323ms
9 Mar 2026
Diamonds
GolfingSuccess
1,150
342ms
9 Mar 2026
Diamonds
bitsandbeyond
288
332ms
9 Mar 2026
Diamonds
snoozingnewt
155
318ms
9 Mar 2026
Diamonds
edsrzf
150
319ms
9 Mar 2026
Diamonds
Jacob385
1,158
327ms
9 Mar 2026
Diamonds
scpchicken
304
317ms
9 Mar 2026
Diamonds
dokutan
270
348ms
12 Dec 2025
Diamonds
KatieLG
487
325ms
30 Nov 2025
Diamonds
CaedenHarper
210
330ms
1 Nov 2025
Diamonds
sean-niemann
🥈
130
322ms
12 Aug 2025
Diamonds
ibeucaly
208
380ms
21 Jun 2025
Diamonds
ereztaiar
294
310ms
2 Apr 2025
Diamonds
stefangimmillaro
167
358ms
13 Dec 2024
Diamonds
Mabeloid
1,243
343ms
17 Sep 2024
Diamonds
HumanoidCPU
1,150
332ms
26 Aug 2024
Diamonds
bzijlema
160
325ms
30 Jan 2024
Diamonds
xbxbxb007
396
321ms
10 Jan 2024
Diamonds
kkoenig
526
369ms
4 Jan 2024
Diamonds
JayXon
💎
117
319ms
19 Dec 2023
Diamonds
hotmanga
398
316ms
6 Nov 2023
Diamonds
Yewzir
182
318ms
29 Oct 2023
Diamonds
msbranicky
250
332ms
22 Aug 2023
Diamonds
MeWhenI
163
356ms
10 Feb 2023
Diamonds
retrohun
1,243
326ms
27 Dec 2022
Diamonds
Shanethegamer
204
363ms
13 Sep 2022
Diamonds
jupj
206
305ms
19 Aug 2022
Diamonds
KatieLG-Transpiler
1,152
331ms
24 Jun 2022
Diamonds
janbehrens
231
316ms
19 Jun 2021
Diamonds
guliyevemil1
175
350ms
30 Jan 2021
Diamonds
cduerm
177
308ms
12 Nov 2020
Diamonds
nwellnhof
🥉
134
340ms
5 Sep 2020
Diamonds
JRaspass
1,150
317ms
15 Jul 2020
Diamonds
tsakath
274
333ms
22 Apr 2020
Diamonds
yzzyx
156
325ms
21 Apr 2020
Diamonds
lukechampine
163
308ms
19 Apr 2020
Diamonds
bendiscz
157
314ms
18 Apr 2020
Diamonds
primo-ppcg
151
329ms
17 Apr 2020
Diamonds
jerrandolph
181
314ms
16 Apr 2020