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
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
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
ArkScript
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
ArkScript
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
Calendar
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
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
12 Days of Christmas
kumavale
479
196ms
39 hours ago
12 Days of Christmas
KatieLG
257
10ms
2 days ago
12 Days of Christmas
itsquasiab
615
992ms
2 days ago
12 Days of Christmas
softpankekk7
2,381
11ms
3 days ago
12 Days of Christmas
m0hit-singh
2,395
9ms
5 days ago
12 Days of Christmas
multikatt
544
10ms
6 days ago
12 Days of Christmas
REOScotte
442
198ms
7 days ago
12 Days of Christmas
frosster
486
2ms
8 days ago
12 Days of Christmas
dokutan
331
9ms
8 days ago
12 Days of Christmas
matejmatik123
658
1,010ms
9 days ago
12 Days of Christmas
AnAwesomGuy
378
349ms
9 days ago
12 Days of Christmas
egertaia
276
9ms
10 days ago
12 Days of Christmas
TheZwierzLF
685
39ms
10 days ago
12 Days of Christmas
KatieLG-Transpiler
2,484
3ms
11 days ago
12 Days of Christmas
KatieLG-Transpiler
2,489
10ms
11 days ago
12 Days of Christmas
KatieLG-Transpiler
2,487
2ms
11 days ago
12 Days of Christmas
kmathis22
592
2,112ms
14 days ago
12 Days of Christmas
prestosilver
505
341ms
14 days ago
12 Days of Christmas
solisolu
460
10ms
15 days ago
12 Days of Christmas
lvl1psy
2,615
11ms
16 days ago
12 Days of Christmas
sunleonid
193
17ms
16 days ago
12 Days of Christmas
jet689
467
10ms
17 days ago
12 Days of Christmas
JOrE20
647
26ms
17 days ago
12 Days of Christmas
Macweese
566
368ms
17 days ago
12 Days of Christmas
averagepythondev
2,381
10ms
17 days ago
12 Days of Christmas
AdamMorris377
523
10ms
18 days ago
12 Days of Christmas
HumanoidCPU
2,377
7ms
18 days ago
12 Days of Christmas
ryyyn
396
17ms
19 days ago
12 Days of Christmas
morphthesworph
487
10ms
19 days ago
12 Days of Christmas
Arkadios200
519
109ms
19 days ago
12 Days of Christmas
davecame
430
10ms
20 days ago
12 Days of Christmas
iilegacyyii
560
17ms
20 days ago
12 Days of Christmas
zyc-2024
531
10ms
20 days ago
12 Days of Christmas
dokutan
512
121ms
21 days ago
12 Days of Christmas
mousetail
494
5ms
21 days ago
12 Days of Christmas
rbertram90
560
4ms
21 days ago
12 Days of Christmas
themoonisacheese
528
10ms
21 days ago
12 Days of Christmas
janAkali
524
2ms
21 days ago
12 Days of Christmas
Florian-Mt
623
377ms
22 days ago
12 Days of Christmas
gyanesh-maurya
507
10ms
22 days ago
12 Days of Christmas
jkelly467
494
2,311ms
22 days ago
12 Days of Christmas
nemoyatpeace
473
10ms
22 days ago
12 Days of Christmas
dokutan
484
445ms
23 days ago
12 Days of Christmas
NoneTheFewer
581
10ms
23 days ago
12 Days of Christmas
D-MOVE
2,374
48ms
23 days ago
12 Days of Christmas
HumanoidCPU
1,225
699ms
23 days ago
12 Days of Christmas
dokutan
🥉
249
3ms
24 days ago
12 Days of Christmas
amazingalek
504
416ms
24 days ago
12 Days of Christmas
mwarvik
589
417ms
24 days ago
12 Days of Christmas
amazingalek
479
11ms
24 days ago
12 Days of Christmas
Languag3
2,381
11ms
25 days ago
12 Days of Christmas
Babafaba
2,389
2ms
25 days ago
12 Days of Christmas
retro-pigeon
2,381
2ms
25 days ago
12 Days of Christmas
Lv0Sys
449
10ms
25 days ago
12 Days of Christmas
Matter1024
216
18ms
25 days ago
12 Days of Christmas
od86
648
35ms
25 days ago
12 Days of Christmas
prestosilver
522
2ms
25 days ago
12 Days of Christmas
TheZwierzLF
454
42ms
25 days ago
12 Days of Christmas
codewrite
558
402ms
25 days ago
12 Days of Christmas
tmyt
510
2ms
26 days ago
12 Days of Christmas
Heathcorp
8,369
3ms
26 days ago
12 Days of Christmas
wboka
508
10ms
26 days ago
12 Days of Christmas
osNiko
585
10ms
26 days ago
12 Days of Christmas
Carlos-EAC
1,995
1,004ms
26 days ago
12 Days of Christmas
Carlos-EAC
2,489
10ms
26 days ago
12 Days of Christmas
Shanethegamer
2,389
3ms
26 days ago
12 Days of Christmas
albanian-laundromat
551
46ms
26 days ago
12 Days of Christmas
Trildcookie
269
10ms
27 days ago
12 Days of Christmas
Nemikolh
485
9ms
27 days ago
12 Days of Christmas
Maashau
532
2ms
27 days ago
12 Days of Christmas
te-chnical
571
10ms
23 Dec 2025
12 Days of Christmas
brie-r
2,392
117ms
23 Dec 2025
12 Days of Christmas
CornerMercury
206
16ms
22 Dec 2025
12 Days of Christmas
qrakhen
523
468ms
22 Dec 2025
12 Days of Christmas
IISResetMe
452
231ms
21 Dec 2025
12 Days of Christmas
noahdorsch
895
1,228ms
21 Dec 2025
12 Days of Christmas
JOrE20
582
152ms
21 Dec 2025
12 Days of Christmas
AnAwesomGuy
204
18ms
21 Dec 2025
12 Days of Christmas
TheZwierzLF
470
512ms
20 Dec 2025
12 Days of Christmas
TheZwierzLF
472
10ms
20 Dec 2025