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
Chars
Time
Submitted
Leap Years
jiaminglimjm
142
2ms
22 mins ago
Leap Years
dokutan
45
58ms
8 hours ago
Leap Years
dokutan
🥇
40
2ms
12 hours ago
Leap Years
ovs-code
🥇
40
2ms
23 hours ago
Leap Years
GrayJoKing
🥇
40
2ms
26 hours ago
Leap Years
Yewzir
43
2ms
27 hours ago
Leap Years
sean-niemann
🥇
40
2ms
27 hours ago
Leap Years
JayXon
🥇
40
2ms
29 hours ago
Leap Years
rucin93
🥇
40
2ms
30 hours ago
Leap Years
DialFrost
🥇
40
2ms
30 hours ago
Leap Years
dokutan
64
40ms
31 hours ago
Leap Years
KatieLG
606
60ms
33 hours ago
Leap Years
KatieLG
648
15ms
35 hours ago
Leap Years
Efgeen
65
2ms
3 days ago
Leap Years
luuumine
65
118ms
3 days ago
Leap Years
luuumine
77
57ms
3 days ago
Leap Years
j-zhang43
62
20ms
4 days ago
Leap Years
Yewzir
42
684ms
4 days ago
Leap Years
JOrE20
49
11ms
4 days ago
Leap Years
WatMan77
55
915ms
5 days ago
Leap Years
Yewzir
134
1,637ms
5 days ago
Leap Years
StronkCheese2
67
66ms
6 days ago
Leap Years
CaedenHarper
90
244ms
7 days ago
Leap Years
HumanoidCPU
883
1ms
7 days ago
Leap Years
CaedenHarper
883
1ms
7 days ago
Leap Years
StronkCheese2
60
2ms
7 days ago
Leap Years
emgordon154
🥉
21
35ms
8 days ago
Leap Years
madeforlosers
69
15ms
8 days ago
Leap Years
HumanoidCPU
1,020
24ms
9 days ago
Leap Years
Jacob385
71
341ms
9 days ago
Leap Years
luuumine
52
7ms
9 days ago
Leap Years
Adix-null
65
283ms
10 days ago
Leap Years
HumanoidCPU
1,168
7ms
10 days ago
Leap Years
albanian-laundromat
54
109ms
11 days ago
Leap Years
HumanoidCPU
70
337ms
11 days ago
Leap Years
MeWhenI
🥈
123
1,559ms
12 days ago
Leap Years
MeWhenI
67
336ms
12 days ago
Leap Years
albanian-laundromat
70
41ms
12 days ago
Leap Years
2bular
18
46ms
12 days ago
Leap Years
2bular
30
32ms
12 days ago
Leap Years
albanian-laundromat
92
2ms
13 days ago
Leap Years
JOrE20
2,113
2ms
13 days ago
Leap Years
XenThe
70
9ms
13 days ago
Leap Years
gigaprofisi
739
42ms
14 days ago
Leap Years
Babafaba
45
316ms
14 days ago
Leap Years
AlephSquirrel
🥉
23
2ms
15 days ago
Leap Years
ian-h-chamberlain
83
41ms
15 days ago
Leap Years
ian-h-chamberlain
49
9ms
15 days ago
Leap Years
ian-h-chamberlain
65
128ms
15 days ago
Leap Years
gigaprofisi
53
10ms
16 days ago
Leap Years
frankgraziano
🥈
132
11ms
16 days ago
Leap Years
CommandLeo
54
14ms
16 days ago
Leap Years
solisolu
51
14ms
17 days ago
Leap Years
blaztoma
38
63ms
17 days ago
Leap Years
kg583
54
3ms
18 days ago
Leap Years
KasperKivimaeki
🥇
41
8ms
19 days ago
Leap Years
retrohun
83
24ms
19 days ago
Leap Years
Mabeloid
70
132ms
19 days ago
Leap Years
luuumine
59
2ms
21 days ago
Leap Years
luuumine
48
9ms
21 days ago
Leap Years
luuumine
42
9ms
21 days ago
Leap Years
Ralac07
51
9ms
24 days ago
Leap Years
CaedenHarper
31
39ms
24 days ago
Leap Years
inventshah
🥉
76
56ms
25 days ago
Leap Years
Emutis
47
20ms
25 days ago
Leap Years
albanian-laundromat
71
332ms
25 days ago
Leap Years
dokutan
67
3ms
26 days ago
Leap Years
blaztoma
32
209ms
26 days ago
Leap Years
KatieLG
897
135ms
26 days ago
Leap Years
Ledgehanger
75
9ms
26 days ago
Leap Years
Laellekoenig
46
9ms
22 Oct 2025
Leap Years
AetherQuantity
49
38ms
21 Oct 2025
Leap Years
ItsMeNoobieboy
56
9ms
21 Oct 2025
Leap Years
madeforlosers
57
9ms
20 Oct 2025
Leap Years
jtaxen
51
9ms
20 Oct 2025