Recent Solutions
Prev Hole
Play Hole
Next Hole
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
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
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
All Languages
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
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
Erlang
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
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
Erlang
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
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
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Tower of Hanoi
namelessiw
32
148ms
46 hours ago
Tower of Hanoi
Seek64
52
11ms
2 days ago
Tower of Hanoi
canissimia
49
614ms
2 days ago
Tower of Hanoi
bitsandbeyond
107
4ms
2 days ago
Tower of Hanoi
bitsandbeyond
98
9ms
2 days ago
Tower of Hanoi
HumanoidCPU
4,608
27ms
3 days ago
Tower of Hanoi
SwordF-Official
92
2ms
3 days ago
Tower of Hanoi
5cw
60
11ms
3 days ago
Tower of Hanoi
Kacarott
59
11ms
3 days ago
Tower of Hanoi
GolfingSuccess
74
15ms
3 days ago
Tower of Hanoi
Mukundan314
55
11ms
4 days ago
Tower of Hanoi
Ripick
76
10ms
4 days ago
Tower of Hanoi
davecame
59
11ms
6 days ago
Tower of Hanoi
Shanethegamer
4,095
2ms
6 days ago
Tower of Hanoi
JOrE20
72
9ms
6 days ago
Tower of Hanoi
Ripick
75
110ms
6 days ago
Tower of Hanoi
JOrE20
10,097
4ms
6 days ago
Tower of Hanoi
albanian-laundromat
70
771ms
7 days ago
Tower of Hanoi
cros107
70
11ms
7 days ago
Tower of Hanoi
bitsandbeyond
52
742ms
7 days ago
Tower of Hanoi
HumanoidCPU
7,664
45ms
8 days ago
Tower of Hanoi
Jacob385
105
354ms
8 days ago
Tower of Hanoi
anter69
73
11ms
8 days ago
Tower of Hanoi
HumanoidCPU
5,110
9ms
10 days ago
Tower of Hanoi
Natanaelel
46
33ms
10 days ago
Tower of Hanoi
kg583
138
2,179ms
10 days ago
Tower of Hanoi
Natanaelel
35
101ms
10 days ago
Tower of Hanoi
HumanoidCPU
3,607
326ms
11 days ago
Tower of Hanoi
lyphyser
52
48ms
11 days ago
Tower of Hanoi
IanUtley
70
10ms
11 days ago
Tower of Hanoi
HumanoidCPU
4,098
2ms
11 days ago
Tower of Hanoi
HumanoidCPU
4,107
3ms
11 days ago
Tower of Hanoi
HumanoidCPU
4,115
4ms
11 days ago
Tower of Hanoi
HumanoidCPU
4,141
1,559ms
11 days ago
Tower of Hanoi
HumanoidCPU
3,617
15ms
11 days ago
Tower of Hanoi
HumanoidCPU
4,095
3ms
11 days ago
Tower of Hanoi
HumanoidCPU
4,087
1ms
11 days ago
Tower of Hanoi
HumanoidCPU
4,119
55ms
11 days ago
Tower of Hanoi
HumanoidCPU
4,099
112ms
11 days ago
Tower of Hanoi
HumanoidCPU
25,788
4ms
11 days ago
Tower of Hanoi
HumanoidCPU
3,595
285ms
11 days ago
Tower of Hanoi
HumanoidCPU
3,586
3ms
11 days ago
Tower of Hanoi
HumanoidCPU
3,594
55ms
11 days ago
Tower of Hanoi
lukegustafson
53
9ms
12 days ago
Tower of Hanoi
bitsandbeyond
71
46ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,590
52ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,618
441ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,624
277ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,591
8ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,589
799ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,586
24ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,584
3ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,589
2ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,585
3ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,586
113ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,599
569ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,578
2ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,585
12ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,586
142ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,586
184ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,577
74ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,578
93ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,626
58ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,579
373ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,577
202ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,624
264ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,584
3ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,598
100ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,609
379ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,585
86ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,582
104ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,582
2,020ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,588
9ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,590
24ms
12 days ago
Tower of Hanoi
HumanoidCPU
3,583
80ms
12 days ago