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
NFA Simulator
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
NFA Simulator
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
Bytes
Time
Submitted
Sudoku
h3ra993huskp
980
515ms
27 hours ago
Sudoku
AlephSquirrel
🥉
812
705ms
4 days ago
Sudoku
ndren
560
30ms
5 days ago
Sudoku
blaztoma
547
18ms
5 days ago
Sudoku
KatieLG
919
463ms
9 days ago
Sudoku
snoozingnewt
🥉
618
255ms
9 days ago
Sudoku
snoozingnewt
🥉
660
4,110ms
10 days ago
Sudoku
snoozingnewt
516
1,104ms
10 days ago
Sudoku
snoozingnewt
524
31ms
10 days ago
Sudoku
targrik
🥉
583
46ms
11 days ago
Sudoku
sean-niemann
💎
554
61ms
12 days ago
Sudoku
CornerMercury
517
32ms
12 days ago
Sudoku
KasperKivimaeki
🥉
396
3,092ms
12 days ago
Sudoku
Yax42
523
469ms
14 days ago
Sudoku
ryyyn
409
122ms
19 days ago
Sudoku
MeWhenI
🥈
517
830ms
23 days ago
Sudoku
emgordon154
💎
215
62ms
23 days ago
Sudoku
albanian-laundromat
🥈
399
1,844ms
24 days ago
Sudoku
lynn
🥈
528
226ms
24 days ago
Sudoku
Natanaelel
446
11ms
25 days ago
Sudoku
CaedenHarper
852
310ms
26 days ago
Sudoku
madeforlosers
624
17ms
27 days ago
Sudoku
robin-scragg
775
14ms
1 Nov 2025
Sudoku
CaedenHarper
484
1,849ms
31 Oct 2025
Sudoku
CaedenHarper
500
56ms
31 Oct 2025
Sudoku
Babafaba
687
1,832ms
26 Oct 2025
Sudoku
Babafaba
702
331ms
26 Oct 2025
Sudoku
CaedenHarper
1,014
382ms
21 Oct 2025
Sudoku
albanian-laundromat
🦄
975
839ms
18 Oct 2025
Sudoku
bitsandbeyond
💎
279
1,354ms
15 Oct 2025
Sudoku
InigoK
505
114ms
9 Oct 2025
Sudoku
CaedenHarper
1,039
534ms
8 Oct 2025
Sudoku
stefangimmillaro
548
492ms
6 Oct 2025
Sudoku
BREMAUCY
597
17ms
4 Oct 2025
Sudoku
pardouin
295
126ms
3 Oct 2025
Sudoku
bzijlema
403
780ms
2 Oct 2025
Sudoku
CaedenHarper
🥉
547
4,015ms
27 Sep 2025
Sudoku
JayXon
💎
385
500ms
27 Sep 2025
Sudoku
edsrzf
💎
358
1,843ms
26 Sep 2025
Sudoku
sean-niemann
🥉
523
475ms
24 Sep 2025
Sudoku
KatieLG
1,559
560ms
24 Sep 2025
Sudoku
AlexKent3141
940
3ms
17 Sep 2025
Sudoku
albanian-laundromat
474
32ms
16 Sep 2025
Sudoku
albanian-laundromat
476
1,827ms
15 Sep 2025
Sudoku
dokutan
803
1,915ms
13 Sep 2025
Sudoku
dokutan
804
27ms
10 Sep 2025
Sudoku
cros107
479
624ms
7 Sep 2025
Sudoku
pardouin
330
1,534ms
6 Sep 2025
Sudoku
HumanoidCPU
659
2,198ms
6 Sep 2025
Sudoku
HumanoidCPU
670
16ms
6 Sep 2025
Sudoku
albanian-laundromat
💎
523
37ms
6 Sep 2025
Sudoku
edsrzf
🥈
1,037
80ms
5 Sep 2025
Sudoku
commandblockguy
499
1,797ms
1 Sep 2025
Sudoku
CaedenHarper
665
17ms
31 Aug 2025
Sudoku
KatieLG
2,664
134ms
25 Aug 2025
Sudoku
KatieLG
2,853
801ms
25 Aug 2025
Sudoku
kg583
💎
525
1,522ms
25 Aug 2025
Sudoku
Upload-and-View
1,176
23ms
21 Aug 2025
Sudoku
emgordon154
🥈
475
3,340ms
14 Aug 2025
Sudoku
namelessiw
🥉
422
370ms
14 Aug 2025
Sudoku
AdrienHache
471
442ms
13 Aug 2025
Sudoku
primo-ppcg
💎
911
18ms
13 Aug 2025
Sudoku
gigaprofisi
1,502
24ms
12 Aug 2025
Sudoku
Kacarott
🥈
814
1,379ms
8 Aug 2025
Sudoku
Zhenyu-Bo
2,074
28ms
1 Aug 2025
Sudoku
LuisGoncalves05
1,736
230ms
31 Jul 2025
Sudoku
klixel
951
20ms
20 Jul 2025
Sudoku
RaBa21
901
71ms
17 Jul 2025
Sudoku
FortuiteMan
640
233ms
14 Jul 2025
Sudoku
acollett89
1,745
11ms
11 Jul 2025
Sudoku
Flekay
804
24ms
10 Jul 2025
Sudoku
ovs-code
💎
299
30ms
29 Jun 2025
Sudoku
ovs-code
288
46ms
21 Jun 2025
Sudoku
ovs-code
💎
173
16ms
21 Jun 2025
Sudoku
Lv0Sys
930
10ms
21 Jun 2025