The
Minesweeper
hole will go live in approximately
26 hours
. Why not try and solve it ahead of time?
Recent Solutions
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
Tutorial
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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
Tutorial
Openstreetmapler
77
898ms
3 hours ago
Tower of Hanoi
Shanethegamer
3,577
331ms
19 hours ago
Farey Sequence
namelessiw
55
856ms
2 days ago
Gray Code Decoder
namelessiw
14
441ms
5 days ago
Zeckendorf Representation
namelessiw
29
350ms
5 days ago
Tutorial
namelessiw
26
787ms
5 days ago
Forsyth–Edwards Notation
namelessiw
93
497ms
9 days ago
Gray Code Encoder
Shanethegamer
6
442ms
10 days ago
Ellipse Perimeters
namelessiw
24
346ms
10 days ago
Ellipse Perimeters
Shanethegamer
23
386ms
11 days ago
Ascending Primes
namelessiw
15
767ms
13 days ago
Fizz Buzz
namelessiw
35
360ms
14 days ago
Foo Fizz Buzz Bar
namelessiw
43
448ms
14 days ago
CSS Colors
namelessiw
788
442ms
15 days ago
Highly Composite Numbers
namelessiw
81
1,788ms
15 days ago
Tutorial
Babafaba
30
1,060ms
15 days ago
Mandelbrot
namelessiw
145
3,649ms
16 days ago
Kolakoski Sequence
namelessiw
36
456ms
16 days ago
Diamonds
namelessiw
22
367ms
16 days ago
Gray Code Encoder
namelessiw
6
459ms
16 days ago
Sphenic Numbers
namelessiw
18
699ms
17 days ago
Semiprime Numbers
namelessiw
13
508ms
17 days ago
√2
namelessiw
45
1,012ms
18 days ago
Christmas Trees
namelessiw
34
375ms
18 days ago
Pascal’s Triangle
namelessiw
16
390ms
18 days ago
Collatz
namelessiw
31
559ms
18 days ago
Happy Numbers (Long)
namelessiw
22
467ms
18 days ago
Happy Numbers
namelessiw
22
415ms
18 days ago
Levenshtein Distance
namelessiw
8
592ms
18 days ago
Quine
namelessiw
18
406ms
18 days ago
Quine
snoozingnewt
18
433ms
18 days ago
Arabic to Roman
namelessiw
5
549ms
18 days ago
Roman to Arabic
namelessiw
5
555ms
18 days ago
Look and Say
namelessiw
16
433ms
18 days ago
Pangram Grep
namelessiw
12
628ms
18 days ago
Card Number Validation
namelessiw
25
411ms
18 days ago
ISBN
namelessiw
33
381ms
18 days ago
Factorial Factorisation
namelessiw
32
408ms
18 days ago
Fractions
namelessiw
19
458ms
18 days ago
Tongue-twisters
namelessiw
470
441ms
19 days ago
τ
namelessiw
19
352ms
19 days ago
π
namelessiw
18
491ms
19 days ago
𝑒
namelessiw
18
502ms
19 days ago
Catalan Numbers
namelessiw
12
370ms
19 days ago
Leap Years
namelessiw
26
403ms
19 days ago
Smith Numbers
namelessiw
19
748ms
19 days ago
Niven Numbers
namelessiw
12
346ms
19 days ago
Niven Numbers (Long)
namelessiw
13
454ms
19 days ago
Pernicious Numbers (Long)
namelessiw
13
439ms
19 days ago
Pernicious Numbers
namelessiw
12
397ms
19 days ago
Odious Numbers
namelessiw
13
416ms
19 days ago
Odious Numbers (Long)
namelessiw
14
408ms
19 days ago
Evil Numbers (Long)
namelessiw
15
397ms
19 days ago
Evil Numbers
namelessiw
13
405ms
19 days ago
Fizz Buzz
ovs-code
39
402ms
19 days ago
Fibonacci
ovs-code
8
422ms
19 days ago
Arithmetic Numbers
ovs-code
16
539ms
19 days ago
Emirp Numbers (Long)
ovs-code
18
411ms
19 days ago
Arithmetic Numbers
namelessiw
16
456ms
19 days ago
Emirp Numbers
ovs-code
18
403ms
19 days ago
Prime Numbers (Long)
namelessiw
8
2,157ms
19 days ago
Prime Numbers (Long)
ovs-code
8
2,446ms
19 days ago
Fibonacci
namelessiw
8
431ms
19 days ago
Prime Numbers
ovs-code
7
349ms
19 days ago
Abundant Numbers
ovs-code
16
488ms
19 days ago
Abundant Numbers (Long)
ovs-code
16
452ms
19 days ago
Abundant Numbers
namelessiw
15
425ms
19 days ago
Abundant Numbers (Long)
namelessiw
15
437ms
19 days ago
Divisors
namelessiw
7
396ms
19 days ago
Emirp Numbers (Long)
namelessiw
19
358ms
19 days ago
Emirp Numbers
namelessiw
19
528ms
19 days ago
Tutorial
GolfingSuccess
26
880ms
19 days ago
Prime Numbers (Long)
snoozingnewt
9
351ms
21 days ago
Prime Numbers
snoozingnewt
9
334ms
21 days ago
Prime Numbers
namelessiw
7
497ms
21 days ago