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
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
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
Polyominoes
MeWhenI
1,144
376ms
9 hours ago
Polyominoes
olleicua
267
79ms
12 hours ago
Polyominoes
JOrE20
966
9ms
33 hours ago
Polyominoes
CaedenHarper
507
18ms
33 hours ago
Polyominoes
albanian-laundromat
💎
195
832ms
2 days ago
Polyominoes
gigaprofisi
3,573
38ms
2 days ago
Polyominoes
CaedenHarper
883
306ms
2 days ago
Polyominoes
HumanoidCPU
8,989
4,396ms
3 days ago
Polyominoes
Babafaba
340
901ms
4 days ago
Polyominoes
Babafaba
343
15ms
4 days ago
Polyominoes
CatsAreFluffy
325
802ms
5 days ago
Polyominoes
mossiegoat
685
27ms
7 days ago
Polyominoes
albanian-laundromat
🥈
360
271ms
11 days ago
Polyominoes
albanian-laundromat
💎
460
866ms
12 days ago
Polyominoes
blaztoma
288
11ms
12 days ago
Polyominoes
KatieLG
4,851
138ms
14 days ago
Polyominoes
iczelia
2,012
14ms
14 days ago
Polyominoes
blaztoma
282
51ms
16 days ago
Polyominoes
KasperKivimaeki
193
106ms
16 days ago
Polyominoes
KasperKivimaeki
💎
262
264ms
16 days ago
Polyominoes
dokutan
3,577
23ms
16 days ago
Polyominoes
CaedenHarper
901
383ms
17 days ago
Polyominoes
CaedenHarper
1,030
441ms
17 days ago
Polyominoes
dokutan
🥉
4,863
1,905ms
17 days ago
Polyominoes
sean-niemann
💎
274
140ms
18 days ago
Polyominoes
luuumine
3,576
15ms
18 days ago
Polyominoes
KasperKivimaeki
🥉
219
387ms
19 days ago
Polyominoes
KasperKivimaeki
💎
153
8ms
19 days ago
Polyominoes
snoozingnewt
🥉
994
80ms
21 days ago
Polyominoes
emgordon154
🥈
1,062
2ms
22 days ago
Polyominoes
snoozingnewt
💎
1,005
3ms
22 days ago
Polyominoes
snoozingnewt
🥈
1,199
30ms
22 days ago
Polyominoes
snoozingnewt
🥈
994
518ms
22 days ago
Polyominoes
snoozingnewt
🥉
975
97ms
22 days ago
Polyominoes
snoozingnewt
🥉
996
1,317ms
22 days ago
Polyominoes
snoozingnewt
🥈
1,106
29ms
22 days ago
Polyominoes
bitsandbeyond
💎
163
3,951ms
23 days ago
Polyominoes
KatieLG
🥇
4,834
5ms
24 days ago
Polyominoes
jared-hughes
406
12ms
25 days ago
Polyominoes
pardouin
146
1,061ms
25 days ago
Polyominoes
KatieLG
3,613
7ms
25 days ago
Polyominoes
jacekwladzinski
3,576
11ms
27 days ago
Polyominoes
snoozingnewt
664
16ms
11 Oct 2025
Polyominoes
ovs-code
💎
67
828ms
8 Oct 2025
Polyominoes
stefangimmillaro
🥉
322
511ms
6 Oct 2025
Polyominoes
Schmitt-Very-Cool
4,854
331ms
3 Oct 2025
Polyominoes
CaedenHarper
🥉
503
2,037ms
30 Sep 2025
Polyominoes
jerrandolph
🥉
618
261ms
30 Sep 2025
Polyominoes
CaedenHarper
4,883
1,821ms
28 Sep 2025
Polyominoes
Shanethegamer
4,883
1,839ms
28 Sep 2025
Polyominoes
qpwoeirut
259
446ms
28 Sep 2025
Polyominoes
snoozingnewt
467
3,529ms
27 Sep 2025
Polyominoes
sean-niemann
🥈
262
1,272ms
26 Sep 2025
Polyominoes
emgordon154
1,036
521ms
25 Sep 2025
Polyominoes
Shanethegamer
3,594
459ms
25 Sep 2025
Polyominoes
error256
956
387ms
24 Sep 2025
Polyominoes
dokutan
952
483ms
24 Sep 2025
Polyominoes
ovs-code
💎
219
534ms
24 Sep 2025
Polyominoes
KatieLG
3,611
338ms
24 Sep 2025
Polyominoes
sean-niemann
🥈
234
4,861ms
20 Sep 2025
Polyominoes
Shanethegamer
3,572
3ms
18 Sep 2025
Polyominoes
MeWhenI
1,127
1,451ms
15 Sep 2025
Polyominoes
KatieLG
4,984
1,766ms
13 Sep 2025
Polyominoes
dokutan
🥇
4,834
4ms
12 Sep 2025
Polyominoes
dokutan
1,237
16ms
10 Sep 2025
Polyominoes
BREMAUCY
🥇
4,834
4ms
5 Sep 2025
Polyominoes
commandblockguy
197
550ms
30 Aug 2025
Polyominoes
dokutan
953
844ms
30 Aug 2025
Polyominoes
BlankSpruce
223
372ms
29 Aug 2025
Polyominoes
InigoK
215
110ms
28 Aug 2025
Polyominoes
kg583
💎
341
172ms
19 Aug 2025
Polyominoes
HumanoidCPU
5,789
140ms
19 Aug 2025
Polyominoes
HumanoidCPU
18,801
240ms
19 Aug 2025
Polyominoes
HumanoidCPU
11,158
6ms
19 Aug 2025
Polyominoes
HumanoidCPU
6,105
85ms
19 Aug 2025