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
Rijndael S-box
jusaka
787
455ms
39 hours ago
Rijndael S-box
Carlos-EAC
800
394ms
10 days ago
Rijndael S-box
emgordon154
170
388ms
3 Mar 2026
Rijndael S-box
Yax42
180
437ms
28 Feb 2026
Rijndael S-box
JayXon
💎
141
387ms
28 Feb 2026
Rijndael S-box
ndren
786
346ms
10 Feb 2026
Rijndael S-box
CornerMercury
790
346ms
10 Feb 2026
Rijndael S-box
vhoulbreque
1,119
371ms
24 Jan 2026
Rijndael S-box
Stockoh
804
342ms
9 Jan 2026
Rijndael S-box
amazingalek
519
423ms
8 Jan 2026
Rijndael S-box
mwarvik
787
369ms
29 Dec 2025
Rijndael S-box
bitsandbeyond
🥉
158
402ms
23 Dec 2025
Rijndael S-box
Zach1031
795
361ms
23 Nov 2025
Rijndael S-box
gigaprofisi
800
363ms
13 Nov 2025
Rijndael S-box
tomh1012
345
436ms
10 Nov 2025
Rijndael S-box
HumanoidCPU
786
343ms
9 Nov 2025
Rijndael S-box
arcpolaris
255
434ms
9 Nov 2025
Rijndael S-box
JOrE20
800
380ms
6 Nov 2025
Rijndael S-box
Blockyheadman
790
362ms
6 Nov 2025
Rijndael S-box
Babafaba
786
355ms
30 Oct 2025
Rijndael S-box
CaedenHarper
231
387ms
19 Oct 2025
Rijndael S-box
fuzzylojik-golf
786
357ms
7 Sep 2025
Rijndael S-box
blaztoma
540
418ms
6 Sep 2025
Rijndael S-box
BREMAUCY
800
374ms
7 Aug 2025
Rijndael S-box
namelessiw
205
401ms
21 Jul 2025
Rijndael S-box
AdrienHache
🥈
145
416ms
20 Jul 2025
Rijndael S-box
KasperKivimaeki
790
363ms
2 Jul 2025
Rijndael S-box
stefangimmillaro
187
370ms
20 Jun 2025
Rijndael S-box
sean-niemann
195
405ms
20 Jun 2025
Rijndael S-box
JOrE-Softwares
800
359ms
1 Jun 2025
Rijndael S-box
Schmitt-Very-Cool
800
350ms
28 May 2025
Rijndael S-box
heanyang1
790
356ms
23 May 2025
Rijndael S-box
madex
327
396ms
3 May 2025
Rijndael S-box
Ralac07
804
362ms
18 Apr 2025
Rijndael S-box
Jacob385
786
365ms
18 Mar 2025
Rijndael S-box
yhm138
802
378ms
17 Feb 2025
Rijndael S-box
acotis
1,119
372ms
14 Feb 2025
Rijndael S-box
tomtheisen
521
411ms
13 Feb 2025
Rijndael S-box
zt14427
804
385ms
11 Feb 2025
Rijndael S-box
rollershutter
790
365ms
29 Jan 2025
Rijndael S-box
olleicua
804
378ms
23 Jan 2025
Rijndael S-box
JunkIce
804
372ms
23 Jan 2025
Rijndael S-box
bac0id
587
375ms
9 Jan 2025
Rijndael S-box
AidanWalter
878
407ms
2 Jan 2025
Rijndael S-box
Adix-null
790
364ms
10 Dec 2024
Rijndael S-box
neel11235813
800
357ms
9 Dec 2024
Rijndael S-box
adamnielson42
803
354ms
3 Dec 2024
Rijndael S-box
SB-945
804
379ms
30 Nov 2024
Rijndael S-box
RaBa21
1,119
365ms
24 Nov 2024
Rijndael S-box
Quirkly-Quasar
800
355ms
23 Nov 2024
Rijndael S-box
error256
161
408ms
22 Nov 2024
Rijndael S-box
scpchicken
993
353ms
16 Nov 2024
Rijndael S-box
QeepQeep
800
337ms
10 Nov 2024
Rijndael S-box
voytxt
609
375ms
4 Nov 2024
Rijndael S-box
pardouin
210
475ms
25 Oct 2024
Rijndael S-box
retrohun
804
358ms
18 Oct 2024
Rijndael S-box
aksyristos
800
356ms
18 Oct 2024
Rijndael S-box
GolfingSuccess
800
358ms
17 Oct 2024
Rijndael S-box
Yewzir
317
387ms
17 Oct 2024
Rijndael S-box
Mabeloid
800
363ms
21 Sep 2024
Rijndael S-box
rifatx
257
381ms
21 Jul 2024
Rijndael S-box
dokutan
624
374ms
5 Jun 2024
Rijndael S-box
KatieLG
786
360ms
5 May 2024
Rijndael S-box
Maximizer02
786
364ms
12 Mar 2024
Rijndael S-box
janbehrens
257
379ms
30 Dec 2023
Rijndael S-box
roavin
257
384ms
18 Oct 2023
Rijndael S-box
SirBogman
180
438ms
27 Sep 2023
Rijndael S-box
weliveinhell
184
361ms
27 Sep 2023
Rijndael S-box
annaproxy
280
378ms
24 Sep 2023
Rijndael S-box
msbranicky
617
386ms
8 Sep 2023
Rijndael S-box
postie77
285
395ms
6 Sep 2023
Rijndael S-box
KatieLG-Transpiler
804
362ms
2 Sep 2023
Rijndael S-box
MeWhenI
786
361ms
1 Sep 2023
Rijndael S-box
Shanethegamer
786
375ms
1 Sep 2023