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
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)
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
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
Lily
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
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
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
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)
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
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
SI Units
dokutan
346
418ms
53 mins ago
SI Units
Flekay
576
20ms
8 hours ago
SI Units
snoozingnewt
🥉
911
210ms
4 days ago
SI Units
dokutan
355
63ms
5 days ago
SI Units
JOrE20
314
13ms
7 days ago
SI Units
tomh1012
885
276ms
8 days ago
SI Units
edsrzf
💎
626
425ms
12 days ago
SI Units
Andrey2001
1,155
28ms
14 days ago
SI Units
edsrzf
🥈
403
1,621ms
15 days ago
SI Units
edsrzf
🥉
409
175ms
20 days ago
SI Units
blaztoma
🥈
615
197ms
25 days ago
SI Units
alexsave
803
15ms
15 Jan 2026
SI Units
dokutan
660
11ms
11 Jan 2026
SI Units
KatieLG
14,262
16ms
11 Jan 2026
SI Units
TheZwierzLF
619
15ms
6 Jan 2026
SI Units
dokutan
654
327ms
29 Dec 2025
SI Units
edsrzf
💎
607
405ms
29 Dec 2025
SI Units
blaztoma
🥈
633
156ms
29 Dec 2025
SI Units
dokutan
653
4ms
26 Dec 2025
SI Units
rollershutter
865
14ms
16 Dec 2025
SI Units
blaztoma
499
16ms
15 Dec 2025
SI Units
edsrzf
471
21ms
14 Dec 2025
SI Units
TheZwierzLF
608
970ms
12 Dec 2025
SI Units
CaedenHarper
542
104ms
11 Dec 2025
SI Units
edsrzf
💎
502
149ms
9 Dec 2025
SI Units
Lv0Sys
591
14ms
8 Dec 2025
SI Units
Lv0Sys
596
13ms
8 Dec 2025
SI Units
KasperKivimaeki
🥈
528
448ms
8 Dec 2025
SI Units
sean-niemann
691
661ms
8 Dec 2025
SI Units
GolfingSuccess
523
1,018ms
7 Dec 2025
SI Units
GolfingSuccess
536
29ms
7 Dec 2025
SI Units
sean-niemann
💎
189
433ms
5 Dec 2025
SI Units
sean-niemann
🥈
193
29ms
5 Dec 2025
SI Units
CaedenHarper
619
1,005ms
4 Dec 2025
SI Units
CaedenHarper
🥈
639
473ms
4 Dec 2025
SI Units
targrik
🥈
598
30ms
1 Dec 2025
SI Units
KasperKivimaeki
🥈
485
5ms
1 Dec 2025
SI Units
KatieLG
32,469
160ms
30 Nov 2025
SI Units
KatieLG
🥉
15,775
1,008ms
30 Nov 2025
SI Units
h3ra993huskp
801
724ms
30 Nov 2025
SI Units
AidanWalter
3,911
338ms
27 Nov 2025
SI Units
CornerMercury
276
25ms
25 Nov 2025
SI Units
jatloe
761
24ms
24 Nov 2025
SI Units
albanian-laundromat
🥈
1,358
23ms
23 Nov 2025
SI Units
retrohun
2,836
342ms
22 Nov 2025
SI Units
scpchicken
5,779
319ms
22 Nov 2025
SI Units
KatieLG
15,794
7ms
21 Nov 2025
SI Units
snoozingnewt
766
156ms
20 Nov 2025
SI Units
Schmitt-Very-Cool
1,028
1,442ms
19 Nov 2025
SI Units
ryyyn
486
22ms
18 Nov 2025
SI Units
gigaprofisi
692
11ms
17 Nov 2025
SI Units
Babafaba
392
22ms
12 Nov 2025
SI Units
Babafaba
388
636ms
12 Nov 2025
SI Units
MeWhenI
🥈
903
1,848ms
7 Nov 2025
SI Units
MeWhenI
🥉
618
765ms
7 Nov 2025
SI Units
edsrzf
🥉
522
175ms
28 Oct 2025
SI Units
MichalMarsalek
🥈
549
780ms
28 Oct 2025
SI Units
ndren
679
826ms
23 Oct 2025
SI Units
rucin93
539
154ms
22 Oct 2025
SI Units
KatieLG
293
15ms
19 Oct 2025
SI Units
KatieLG
293
525ms
19 Oct 2025
SI Units
CaedenHarper
607
454ms
16 Oct 2025
SI Units
CaedenHarper
531
766ms
16 Oct 2025
SI Units
BREMAUCY
2,049
710ms
15 Oct 2025
SI Units
CaedenHarper
738
1,271ms
12 Oct 2025
SI Units
snoozingnewt
2,984
631ms
11 Oct 2025
SI Units
blaztoma
2,249
371ms
11 Oct 2025
SI Units
qpwoeirut
766
14ms
6 Oct 2025
SI Units
stefangimmillaro
🥈
558
903ms
6 Oct 2025
SI Units
Schmitt-Very-Cool
945
912ms
3 Oct 2025
SI Units
snoozingnewt
831
193ms
30 Sep 2025
SI Units
jared-hughes
565
21ms
28 Sep 2025
SI Units
jerrandolph
766
340ms
26 Sep 2025
SI Units
Yax42
564
488ms
25 Sep 2025
SI Units
edsrzf
💎
537
727ms
24 Sep 2025
SI Units
KatieLG
15,826
862ms
24 Sep 2025
SI Units
SirBogman
🥈
413
43ms
23 Sep 2025
SI Units
CaedenHarper
🥈
546
4,408ms
20 Sep 2025
SI Units
MeWhenI
🥉
600
2,149ms
15 Sep 2025
SI Units
KatieLG
48,509
1,981ms
14 Sep 2025