The
Minesweeper
hole will go live in approximately
16 hours
. Why not try and solve it ahead of time?
Recent Solutions
Golfers
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12 Days of Christmas
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99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
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Arrows
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brainfuck
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
CSS Colors
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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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iogii
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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
Chars
Time
Submitted
Pangram Grep
Babafaba
121
8ms
10 hours ago
Mandelbrot
snoozingnewt
🥉
255
335ms
12 hours ago
Tower of Hanoi
kg583
74
11ms
12 hours ago
Tower of Hanoi
edsrzf
75
11ms
12 hours ago
Tutorial
Openstreetmapler
151
7ms
13 hours ago
Tower of Hanoi
Shanethegamer
89
11ms
26 hours ago
Kolakoski Sequence
snoozingnewt
134
7ms
31 hours ago
Kaprekar Numbers
Babafaba
448
6ms
32 hours ago
Catalan Numbers
snoozingnewt
87
7ms
32 hours ago
𝑒
Babafaba
1,011
6ms
39 hours ago
Rijndael S-box
Babafaba
776
6ms
39 hours ago
γ
Babafaba
1,011
6ms
39 hours ago
Transpose Sentence
kg583
🥉
87
50ms
2 days ago
Happy Numbers (Long)
kg583
💎
84
49ms
3 days ago
Lucky Tickets
kg583
🥈
121
23ms
3 days ago
Diamonds
kg583
💎
93
19ms
3 days ago
Ellipse Perimeters
Shanethegamer
112
19ms
3 days ago
Scrambled Sort
kg583
🥈
97
21ms
3 days ago
Minesweeper
edsrzf
99
68ms
3 days ago
Minesweeper
kg583
101
61ms
4 days ago
Minesweeper
Shanethegamer
133
68ms
4 days ago
Game of Life
kg583
🥉
116
15ms
4 days ago
Musical Chords
emgordon154
🥈
217
17ms
4 days ago
Odious Numbers (Long)
snoozingnewt
82
12ms
5 days ago
Evil Numbers (Long)
snoozingnewt
83
8ms
5 days ago
Evil Numbers
snoozingnewt
81
6ms
5 days ago
λ
Babafaba
1,011
6ms
6 days ago
Rule 110
edsrzf
💎
105
39ms
6 days ago
Rule 110
kg583
🥈
108
68ms
6 days ago
ASCII Table
kg583
138
7ms
6 days ago
Ascending Primes
kg583
120
1,363ms
7 days ago
QR Decoder
kg583
🥈
168
6ms
7 days ago
Tongue-twisters
snoozingnewt
371
6ms
7 days ago
Arithmetic Numbers
kg583
💎
85
4,544ms
7 days ago
ASCII Table
edsrzf
🥇
98
8ms
9 days ago
Pernicious Numbers
snoozingnewt
58
7ms
10 days ago
Poker
edsrzf
🥈
377
10ms
11 days ago
Poker
Shanethegamer
🥉
385
9ms
11 days ago
Day of Week
ZoDoneRightNow
107
24ms
12 days ago
Arabic to Roman
snoozingnewt
79
37ms
13 days ago
Prime Numbers (Long)
CaedenHarper
85
654ms
13 days ago
Foo Fizz Buzz Bar
kg583
🥈
91
15ms
14 days ago
ISBN
kg583
🥉
100
9ms
14 days ago
Zodiac Signs
kg583
💎
127
20ms
14 days ago
Morse Encoder
kg583
💎
138
9ms
14 days ago
N Queens
kg583
🥈
113
28ms
14 days ago
Card Number Validation
kg583
🥈
94
11ms
14 days ago
Hilbert Curve
snoozingnewt
🥈
495
8ms
14 days ago
Foo Fizz Buzz Bar
snoozingnewt
164
13ms
14 days ago
Tutorial
luuumine
151
9ms
14 days ago
Tutorial
Babafaba
151
10ms
15 days ago
Catalan’s Constant
kg583
💎
141
19ms
15 days ago
Arrows
kg583
🥈
129
8ms
15 days ago
Farey Sequence
snoozingnewt
136
10ms
16 days ago
Evil Numbers (Long)
Babafaba
52
13ms
16 days ago
Evil Numbers
Babafaba
50
6ms
16 days ago
Odious Numbers
Babafaba
49
7ms
16 days ago
Odious Numbers (Long)
Babafaba
50
13ms
16 days ago
Pangram Grep
kg583
96
17ms
16 days ago
Abundant Numbers
kg583
🥉
64
7ms
17 days ago
Van Eck Sequence
snoozingnewt
99
12ms
17 days ago
Inventory Sequence
snoozingnewt
116
10ms
17 days ago
Odious Numbers
snoozingnewt
81
6ms
17 days ago
Prime Numbers (Long)
ZoDoneRightNow
80
622ms
17 days ago
Roman to Arabic
ZoDoneRightNow
169
35ms
17 days ago
99 Bottles of Beer
ZoDoneRightNow
323
13ms
17 days ago
Tongue-twisters
ZoDoneRightNow
333
8ms
17 days ago
Tongue-twisters
kg583
207
6ms
18 days ago
Arabic to Roman
ZoDoneRightNow
🥇
73
49ms
18 days ago
Leyland Numbers
snoozingnewt
119
20ms
18 days ago
Forsyth–Edwards Notation
kg583
🥇
111
9ms
18 days ago
United States
edsrzf
🥇
92
7ms
18 days ago
United States
kg583
🥇
92
8ms
18 days ago
Prime Numbers
ZoDoneRightNow
80
8ms
20 days ago
Pascal’s Triangle
ZoDoneRightNow
94
7ms
20 days ago