The
Minesweeper
hole will go live in approximately
30 hours
. Why not try and solve it ahead of time?
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Golfers
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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
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
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
Minesweeper
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
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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
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
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
Minesweeper
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
Tower of Hanoi
bitsandbeyond
69
213ms
95 mins ago
Tower of Hanoi
Shanethegamer
3,578
152ms
15 hours ago
Kolakoski Sequence
snoozingnewt
80
257ms
17 hours ago
Catalan Numbers
snoozingnewt
47
199ms
18 hours ago
Day of Week
bstrautin
🥇
16
408ms
2 days ago
Kolakoski Sequence
bitsandbeyond
🥈
42
269ms
3 days ago
Pangram Grep
Ralac07
123
296ms
3 days ago
Calendar
bitsandbeyond
118
502ms
3 days ago
Minesweeper
bitsandbeyond
100
1,355ms
4 days ago
Hexagonal Spiral
bitsandbeyond
115
315ms
5 days ago
Apéry’s Constant
bitsandbeyond
82
290ms
5 days ago
Niven Numbers (Long)
bitsandbeyond
🥉
39
3,978ms
5 days ago
ASCII Table
bitsandbeyond
🥈
79
205ms
5 days ago
Leap Years
blaztoma
32
218ms
5 days ago
Partition Numbers
Feniske
126
843ms
6 days ago
Diamonds
bitsandbeyond
🥉
58
174ms
6 days ago
Gijswijt’s Sequence
bitsandbeyond
72
218ms
6 days ago
CSS Colors (Inverse)
bitsandbeyond
27
235ms
6 days ago
Semiprime Numbers
bitsandbeyond
59
4,781ms
6 days ago
Ellipse Perimeters
bitsandbeyond
89
313ms
6 days ago
Ellipse Perimeters
Shanethegamer
75
172ms
6 days ago
QR Encoder
bitsandbeyond
334
433ms
8 days ago
Gray Code Encoder
bitsandbeyond
30
345ms
9 days ago
Gray Code Decoder
bitsandbeyond
46
1,150ms
9 days ago
Pernicious Numbers
snoozingnewt
🥇
22
222ms
9 days ago
𝑒
bitsandbeyond
🥉
42
226ms
10 days ago
Niven Numbers
bitsandbeyond
29
189ms
10 days ago
Scrambled Sort
bitsandbeyond
🥈
63
735ms
10 days ago
Divisors
bitsandbeyond
🥈
33
234ms
10 days ago
Topological Sort
bitsandbeyond
💎
83
3,224ms
11 days ago
Day of Week
Emutis
17
212ms
11 days ago
Day of Week
blaztoma
17
197ms
11 days ago
CSS Colors
Emutis
82
232ms
11 days ago
CSS Colors
blaztoma
82
201ms
11 days ago
Hilbert Curve
snoozingnewt
585
209ms
12 days ago
Maze
bitsandbeyond
🥇
104
12 days ago
DFA Simulator
snoozingnewt
298
422ms
12 days ago
Fibonacci
MeddyBou
253
222ms
13 days ago
Game of Life
bitsandbeyond
🥈
92
316ms
13 days ago
Morse Decoder
bitsandbeyond
💎
119
242ms
13 days ago
Mahjong
bitsandbeyond
💎
204
3,845ms
14 days ago
Foo Fizz Buzz Bar
MeddyBou
960
236ms
14 days ago
Fizz Buzz
MeddyBou
304
179ms
14 days ago
Tutorial
luuumine
162
201ms
14 days ago
Smith Numbers
bitsandbeyond
💎
99
14 days ago
Medal Tally
bitsandbeyond
💎
94
419ms
14 days ago
Tutorial
Babafaba
162
269ms
14 days ago
SI Units
BREMAUCY
2,052
752ms
14 days ago
Sudoku
bitsandbeyond
💎
279
1,983ms
14 days ago
Polyominoes
bitsandbeyond
💎
163
3,951ms
15 days ago
Poker
bitsandbeyond
💎
268
333ms
15 days ago
Jacobi Symbol
bitsandbeyond
188
319ms
15 days ago
Trinomial Triangle
nwellnhof
💎
50
208ms
15 days ago
Sudoku (Fill-in)
bitsandbeyond
💎
181
789ms
15 days ago
Smith Numbers
snoozingnewt
194
4,554ms
16 days ago
Van Eck Sequence
snoozingnewt
71
253ms
16 days ago
Odious Numbers
bitsandbeyond
🥈
27
179ms
17 days ago
Evil Numbers
bitsandbeyond
🥈
28
215ms
17 days ago
Inventory Sequence
snoozingnewt
86
2,642ms
17 days ago
Star Wars Opening Crawl
bitsandbeyond
💎
210
353ms
17 days ago
Leyland Numbers
snoozingnewt
83
261ms
17 days ago
Fizz Buzz
h3ra993huskp
109
223ms
17 days ago
SI Units
CaedenHarper
741
1,497ms
18 days ago
Tutorial
edsrzf
26
236ms
18 days ago
SI Units
snoozingnewt
2,995
633ms
18 days ago
Rijndael S-box
bitsandbeyond
💎
119
328ms
18 days ago
SI Units
blaztoma
2,255
305ms
18 days ago
CSS Colors
KatieLG
81
248ms
19 days ago
Odious Numbers
Babafaba
38
194ms
19 days ago
Tongue-twisters
bitsandbeyond
312
215ms
19 days ago
Kaprekar Numbers
bitsandbeyond
💎
151
4,084ms
19 days ago
Floyd-Steinberg Dithering
bitsandbeyond
147
2,585ms
20 days ago
Arithmetic Numbers
snoozingnewt
130
1,156ms
20 days ago
Reverse Polish Notation
bitsandbeyond
🥈
69
359ms
20 days ago
Pernicious Numbers (Long)
snoozingnewt
83
326ms
21 days ago