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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Multitap Input
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)
Taxicab Numbers
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
All Languages
><>
ALGOL 68
ArkScript
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
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
ALGOL 68
ArkScript
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
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
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
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Multitap Input
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)
Taxicab Numbers
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
12 Days of Christmas
codereport
💎
168
34ms
19 hours ago
12 Days of Christmas
retrohun
500
33ms
22 hours ago
12 Days of Christmas
Yewzir
💎
577
1,640ms
30 hours ago
12 Days of Christmas
madeforlosers
5,941
7ms
37 hours ago
12 Days of Christmas
WilliamDeBlieck
451
78ms
40 hours ago
12 Days of Christmas
prestosilver
652
1,624ms
45 hours ago
12 Days of Christmas
dokutan
566
132ms
45 hours ago
12 Days of Christmas
NacMacFigl
541
2ms
2 days ago
12 Days of Christmas
ComradeSquirrel
539
2ms
2 days ago
12 Days of Christmas
dokutan
346
3ms
2 days ago
12 Days of Christmas
kumavale
🥈
353
195ms
2 days ago
12 Days of Christmas
Quadruplay
480
10ms
2 days ago
12 Days of Christmas
JohnQSmith
544
10ms
3 days ago
12 Days of Christmas
Ash-K2002
562
11ms
4 days ago
12 Days of Christmas
vang1ong7ang
410
39ms
5 days ago
12 Days of Christmas
vang1ong7ang
478
209ms
5 days ago
12 Days of Christmas
kg583
💎
523
35ms
5 days ago
12 Days of Christmas
Matter1024
486
2ms
6 days ago
12 Days of Christmas
vang1ong7ang
450
10ms
6 days ago
12 Days of Christmas
HumanoidCPU
506
4ms
7 days ago
12 Days of Christmas
FortuiteMan
591
376ms
7 days ago
12 Days of Christmas
scpchicken
211
4ms
8 days ago
12 Days of Christmas
samnak2
525
10ms
8 days ago
12 Days of Christmas
madeforlosers
2,384
2ms
8 days ago
12 Days of Christmas
madeforlosers
2,377
127ms
8 days ago
12 Days of Christmas
madeforlosers
2,375
3ms
8 days ago
12 Days of Christmas
madeforlosers
2,489
72ms
8 days ago
12 Days of Christmas
madeforlosers
2,376
2ms
8 days ago
12 Days of Christmas
madeforlosers
2,481
1ms
8 days ago
12 Days of Christmas
madeforlosers
2,382
39ms
8 days ago
12 Days of Christmas
madeforlosers
2,389
121ms
8 days ago
12 Days of Christmas
madeforlosers
2,374
39ms
8 days ago
12 Days of Christmas
madeforlosers
2,374
4ms
8 days ago
12 Days of Christmas
madeforlosers
2,374
106ms
8 days ago
12 Days of Christmas
madeforlosers
2,379
74ms
8 days ago
12 Days of Christmas
madeforlosers
2,380
10ms
8 days ago
12 Days of Christmas
madeforlosers
2,370
192ms
8 days ago
12 Days of Christmas
madeforlosers
2,374
5ms
8 days ago
12 Days of Christmas
madeforlosers
2,373
3ms
8 days ago
12 Days of Christmas
madeforlosers
2,382
22ms
8 days ago
12 Days of Christmas
madeforlosers
2,378
127ms
8 days ago
12 Days of Christmas
madeforlosers
2,487
2ms
8 days ago
12 Days of Christmas
madeforlosers
2,482
2,285ms
8 days ago
12 Days of Christmas
madeforlosers
2,497
3ms
8 days ago
12 Days of Christmas
madeforlosers
2,377
144ms
8 days ago
12 Days of Christmas
madeforlosers
2,370
4ms
8 days ago
12 Days of Christmas
madeforlosers
2,543
327ms
8 days ago
12 Days of Christmas
madeforlosers
2,489
4ms
8 days ago
12 Days of Christmas
madeforlosers
2,378
34ms
8 days ago
12 Days of Christmas
madeforlosers
2,493
116ms
8 days ago
12 Days of Christmas
madeforlosers
2,489
693ms
8 days ago
12 Days of Christmas
madeforlosers
2,370
40ms
8 days ago
12 Days of Christmas
madeforlosers
2,531
318ms
8 days ago
12 Days of Christmas
madeforlosers
2,411
1,196ms
8 days ago
12 Days of Christmas
madeforlosers
4,401
45ms
8 days ago
12 Days of Christmas
madeforlosers
2,488
4ms
8 days ago
12 Days of Christmas
madeforlosers
2,376
64ms
8 days ago
12 Days of Christmas
madeforlosers
2,376
1,275ms
8 days ago
12 Days of Christmas
madeforlosers
2,394
109ms
8 days ago
12 Days of Christmas
madeforlosers
2,377
67ms
8 days ago
12 Days of Christmas
madeforlosers
2,498
107ms
8 days ago
12 Days of Christmas
madeforlosers
2,401
490ms
8 days ago
12 Days of Christmas
madeforlosers
2,375
1,496ms
8 days ago
12 Days of Christmas
madeforlosers
2,382
6ms
8 days ago
12 Days of Christmas
madeforlosers
2,489
2,571ms
8 days ago
12 Days of Christmas
madeforlosers
2,377
4ms
8 days ago
12 Days of Christmas
madeforlosers
3,950
8ms
8 days ago
12 Days of Christmas
joakim-ronning
524
10ms
8 days ago
12 Days of Christmas
emgordon154
🥈
634
1,590ms
10 days ago
12 Days of Christmas
codestube
477
10ms
10 days ago
12 Days of Christmas
Adriannax3
643
10ms
10 days ago
12 Days of Christmas
SuperFola
2,376
3ms
11 days ago
12 Days of Christmas
retrohun
2,656
1,680ms
12 days ago
12 Days of Christmas
Evelyn-Chen-4812
527
32ms
14 days ago
12 Days of Christmas
prestosilver
🥉
466
373ms
14 days ago
12 Days of Christmas
MeWhenI
🥉
646
1,723ms
15 days ago
12 Days of Christmas
rogerle713-beep
476
10ms
15 days ago
12 Days of Christmas
msbranicky
654
1,702ms
15 days ago
12 Days of Christmas
KatieLG
2,681
1,700ms
15 days ago
12 Days of Christmas
dcc5480
414
10ms
15 days ago
12 Days of Christmas
supersonicbyte
2,415
71ms
16 days ago
12 Days of Christmas
HumanoidCPU
2,543
1,676ms
16 days ago
12 Days of Christmas
Shanethegamer
468
18ms
16 days ago
12 Days of Christmas
CaedenHarper
2,543
1,680ms
16 days ago
12 Days of Christmas
dokutan
2,543
1,726ms
16 days ago
12 Days of Christmas
Jonson26
596
373ms
17 days ago
12 Days of Christmas
tails618
510
10ms
18 days ago
12 Days of Christmas
roupiq
12,395
3ms
18 days ago
12 Days of Christmas
Languag3
426
10ms
18 days ago
12 Days of Christmas
ViktYusk
466
10ms
18 days ago
12 Days of Christmas
Moop2462
623
356ms
19 days ago
12 Days of Christmas
emgordon154
620
1,221ms
19 days ago
12 Days of Christmas
pascscha
455
10ms
19 days ago
12 Days of Christmas
Herbert00709
572
69ms
19 days ago
12 Days of Christmas
snoozingnewt
430
3ms
20 days ago
12 Days of Christmas
edsrzf
498
2ms
21 days ago
12 Days of Christmas
Arkadios200
515
110ms
22 days ago
12 Days of Christmas
NameRandomString
513
3ms
23 days ago
12 Days of Christmas
GrayJoKing
415
36ms
23 days ago
12 Days of Christmas
GrayJoKing
🥈
489
7ms
23 days ago