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
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
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
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
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
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
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
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Recamán
KatieLG
1,301
77 mins ago
Recamán
CaedenHarper
🥈
1,200
2 hours ago
Recamán
DialFrost
💎
208
2 hours ago
Recamán
dokutan
🥈
1,200
3 hours ago
Recamán
albanian-laundromat
58
18 hours ago
Recamán
kmathis22
164
24 hours ago
Recamán
tomh1012
100
29 hours ago
Recamán
albanian-laundromat
🥉
238
2 days ago
Recamán
CaedenHarper
🥉
57
3 days ago
Recamán
synt7x
78
3 days ago
Recamán
cthierfelder
107
4 days ago
Recamán
kumavale
118
5 days ago
Recamán
albanian-laundromat
🥉
77
6 days ago
Recamán
CaedenHarper
65
6 days ago
Recamán
Yax42
72
8 days ago
Recamán
DialFrost
💎
48
10 days ago
Recamán
edsrzf
🥈
55
11 days ago
Recamán
edsrzf
🥉
120
11 days ago
Recamán
commandblockguy
69
12 days ago
Recamán
sean-niemann
🥉
57
13 days ago
Recamán
dokutan
69
13 days ago
Recamán
kg583
🥇
84
18 days ago
Recamán
csharpython
87
20 days ago
Recamán
csharpython
63
20 days ago
Recamán
wobblybits
74
21 days ago
Recamán
albanian-laundromat
80
23 days ago
Recamán
qpwoeirut
70
25 days ago
Recamán
HumanoidCPU
1,199
26 days ago
Recamán
HumanoidCPU
1,174
26 days ago
Recamán
HumanoidCPU
1,166
26 days ago
Recamán
HumanoidCPU
1,152
26 days ago
Recamán
HumanoidCPU
1,149
26 days ago
Recamán
HumanoidCPU
919
26 days ago
Recamán
HumanoidCPU
909
26 days ago
Recamán
HumanoidCPU
944
26 days ago
Recamán
HumanoidCPU
906
26 days ago
Recamán
HumanoidCPU
906
26 days ago
Recamán
HumanoidCPU
897
26 days ago
Recamán
HumanoidCPU
906
26 days ago
Recamán
HumanoidCPU
906
26 days ago
Recamán
HumanoidCPU
911
26 days ago
Recamán
HumanoidCPU
909
26 days ago
Recamán
HumanoidCPU
906
26 days ago
Recamán
HumanoidCPU
925
26 days ago
Recamán
HumanoidCPU
899
26 days ago
Recamán
HumanoidCPU
897
26 days ago
Recamán
HumanoidCPU
914
26 days ago
Recamán
HumanoidCPU
907
26 days ago
Recamán
Ultra814
79
26 days ago
Recamán
HumanoidCPU
897
26 days ago
Recamán
HumanoidCPU
905
26 days ago
Recamán
HumanoidCPU
904
26 days ago
Recamán
HumanoidCPU
898
26 days ago
Recamán
HumanoidCPU
898
26 days ago
Recamán
CaedenHarper
2,303
26 days ago
Recamán
CaedenHarper
1,146
27 days ago
Recamán
CaedenHarper
912
27 days ago
Recamán
CaedenHarper
902
27 days ago
Recamán
CaedenHarper
905
27 days ago
Recamán
CaedenHarper
903
27 days ago
Recamán
CaedenHarper
911
27 days ago
Recamán
CaedenHarper
904
27 days ago
Recamán
CaedenHarper
906
27 days ago
Recamán
CaedenHarper
917
27 days ago
Recamán
CaedenHarper
902
27 days ago
Recamán
CaedenHarper
902
27 days ago
Recamán
CaedenHarper
902
27 days ago
Recamán
CaedenHarper
903
27 days ago
Recamán
CaedenHarper
908
27 days ago
Recamán
CaedenHarper
896
27 days ago
Recamán
CaedenHarper
902
27 days ago
Recamán
CaedenHarper
901
27 days ago
Recamán
CaedenHarper
910
27 days ago
Recamán
CaedenHarper
906
27 days ago
Recamán
CaedenHarper
905
27 days ago