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
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
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
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
Multitap Input
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
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
ALGOL 68
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
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
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
ALGOL 68
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
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
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
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
Multitap Input
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Look and Say
dokutan
215
795ms
8 hours ago
Look and Say
NoneTheFewer
203
15ms
11 hours ago
Look and Say
yujh-yujh
72
20ms
17 hours ago
Look and Say
09cf
123
373ms
26 hours ago
Look and Say
KasperKivimaeki
171
364ms
31 hours ago
Look and Say
GrayJoKing
🥉
90
125ms
34 hours ago
Look and Say
edsrzf
93
106ms
35 hours ago
Look and Say
Kacarott
💎
87
89ms
39 hours ago
Look and Say
kmathis22
167
1,031ms
2 days ago
Look and Say
albanian-laundromat
382
13ms
2 days ago
Look and Say
olleicua
1,299
2ms
3 days ago
Look and Say
HumanoidCPU
1,332
262ms
4 days ago
Look and Say
Andrey2001
115
10ms
4 days ago
Look and Say
sean-niemann
🥇
66
762ms
4 days ago
Look and Say
snoozingnewt
131
94ms
5 days ago
Look and Say
vhoulbreque
150
18ms
5 days ago
Look and Say
Lv0Sys
56
36ms
6 days ago
Look and Say
edsrzf
💎
115
100ms
6 days ago
Look and Say
Shanethegamer
1,299
102ms
6 days ago
Look and Say
emgordon154
🥉
129
96ms
7 days ago
Look and Say
dokutan
205
3ms
8 days ago
Look and Say
prestosilver
135
2ms
8 days ago
Look and Say
CaedenHarper
1,320
102ms
9 days ago
Look and Say
dokutan
538
84ms
9 days ago
Look and Say
luuumine
80
11ms
9 days ago
Look and Say
HumanoidCPU
1,297
7ms
9 days ago
Look and Say
DialFrost
🥈
121
93ms
10 days ago
Look and Say
JOrE20
🥉
612
7ms
10 days ago
Look and Say
ScottHamper
143
444ms
10 days ago
Look and Say
KatieLG
703
1,168ms
10 days ago
Look and Say
KatieLG
691
113ms
10 days ago
Look and Say
KatieLG
655
8ms
10 days ago
Look and Say
KatieLG
702
3ms
10 days ago
Look and Say
KatieLG
697
97ms
10 days ago
Look and Say
KatieLG
696
627ms
10 days ago
Look and Say
KatieLG
664
125ms
10 days ago
Look and Say
KatieLG
711
283ms
10 days ago
Look and Say
KatieLG
707
131ms
10 days ago
Look and Say
KatieLG
751
69ms
10 days ago
Look and Say
KatieLG
714
383ms
10 days ago
Look and Say
KatieLG
871
640ms
10 days ago
Look and Say
KatieLG
620
2ms
10 days ago
Look and Say
KatieLG
739
6ms
10 days ago
Look and Say
KatieLG
697
3,149ms
10 days ago
Look and Say
KatieLG
731
382ms
10 days ago
Look and Say
KatieLG
789
256ms
10 days ago
Look and Say
KatieLG
738
98ms
10 days ago
Look and Say
KatieLG
704
18ms
10 days ago
Look and Say
KatieLG
783
1ms
10 days ago
Look and Say
KatieLG
729
131ms
10 days ago
Look and Say
h3ra993huskp
154
446ms
11 days ago
Look and Say
tigerdan2
173
448ms
11 days ago
Look and Say
Ultra814
99
9ms
11 days ago
Look and Say
AidanWalter
305
2ms
14 days ago
Look and Say
prestosilver
2,493
2ms
14 days ago
Look and Say
AstroOrbis
118
10ms
16 days ago
Look and Say
JOrE20
85
9ms
16 days ago
Look and Say
TheZwierzLF
104
387ms
17 days ago
Look and Say
aksyristos
1,300
1ms
18 days ago
Look and Say
scpchicken
1,301
1ms
18 days ago
Look and Say
KatieLG
1,289
1ms
19 days ago
Look and Say
KatieLG
1,306
3ms
19 days ago
Look and Say
KatieLG
1,340
4ms
19 days ago
Look and Say
HumanoidCPU
671
3ms
20 days ago
Look and Say
Yax42
108
9ms
20 days ago
Look and Say
albanian-laundromat
86
71ms
21 days ago
Look and Say
rcht
🥉
372
10ms
21 days ago
Look and Say
dokutan
281
70ms
21 days ago
Look and Say
dokutan
271
81ms
21 days ago
Look and Say
dokutan
402
134ms
21 days ago
Look and Say
Schmitt-Very-Cool
1,298
2ms
22 days ago
Look and Say
dokutan
802
9ms
22 days ago
Look and Say
dokutan
618
3ms
22 days ago
Look and Say
KatieLG
695
72ms
22 days ago
Look and Say
DialFrost
167
485ms
22 days ago