The
Minesweeper
hole will go live in approximately
32 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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Arrows
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brainfuck
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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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
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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
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Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
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COBOL
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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
Collatz
HumanoidCPU
7,225
4ms
10 days ago
Quine
dokutan
18
2ms
10 days ago
Tutorial
Babafaba
71
3ms
14 days ago
Tutorial
GolfingSuccess
68
3ms
23 days ago
Collatz
dokutan
85
32ms
24 days ago
Quine
snoozingnewt
90
2ms
27 days ago
Leap Years
dokutan
48
3ms
27 Sep 2025
Odious Numbers (Long)
dokutan
73
5ms
27 Sep 2025
Odious Numbers
dokutan
72
2ms
27 Sep 2025
Evil Numbers
dokutan
74
2ms
27 Sep 2025
Evil Numbers (Long)
dokutan
75
5ms
27 Sep 2025
Niven Numbers (Long)
dokutan
77
19ms
27 Sep 2025
Niven Numbers
dokutan
48
2ms
27 Sep 2025
Arithmetic Numbers
dokutan
93
27 Sep 2025
Abundant Numbers (Long)
dokutan
75
84ms
27 Sep 2025
Abundant Numbers
dokutan
75
5ms
27 Sep 2025
Prime Numbers (Long)
dokutan
72
27 Sep 2025
Prime Numbers
dokutan
71
2ms
27 Sep 2025
Divisors
dokutan
65
2ms
27 Sep 2025
Tutorial
snoozingnewt
68
3ms
15 Sep 2025
Fizz Buzz
snoozingnewt
91
2ms
14 Sep 2025
Tongue-twisters
dokutan
468
2ms
10 Sep 2025
Fizz Buzz
madex
92
2ms
3 Sep 2025
Hilbert Curve
HumanoidCPU
5,277
2ms
31 Aug 2025
Fizz Buzz
CaedenHarper
94
2ms
28 Aug 2025
Highly Composite Numbers
HumanoidCPU
635
2ms
25 Aug 2025
Odd Polyomino Tiling
HumanoidCPU
22,465
2ms
25 Aug 2025
Fizz Buzz
HumanoidCPU
859
2ms
22 Aug 2025
Tutorial
Vexxter9
132
3ms
21 Aug 2025
Polyominoes
HumanoidCPU
9,281
3ms
19 Aug 2025
Semiprime Numbers
HumanoidCPU
23,288
4ms
19 Aug 2025
Pascal’s Triangle
Shanethegamer
867
2ms
19 Aug 2025
Trinomial Triangle
Shanethegamer
2,165
2ms
19 Aug 2025
Trinomial Triangle
HumanoidCPU
2,165
2ms
19 Aug 2025
99 Bottles of Beer
HumanoidCPU
13,181
3ms
18 Aug 2025
Catalan Numbers
HumanoidCPU
3,271
2ms
18 Aug 2025
Cubes
HumanoidCPU
4,643
2ms
18 Aug 2025
Tongue-twisters
HumanoidCPU
588
2ms
18 Aug 2025
Van Eck Sequence
HumanoidCPU
6,554
3ms
17 Aug 2025
Vampire Numbers
HumanoidCPU
1,690
2ms
17 Aug 2025
Abundant Numbers
HumanoidCPU
346
2ms
16 Aug 2025
Partition Numbers
HumanoidCPU
1,046
2ms
16 Aug 2025
Look and Say
HumanoidCPU
1,358
2ms
15 Aug 2025
Leyland Numbers
HumanoidCPU
1,313
2ms
15 Aug 2025
Farey Sequence
HumanoidCPU
8,228
2ms
15 Aug 2025
Niven Numbers (Long)
HumanoidCPU
13,589
5ms
14 Aug 2025
Odious Numbers
HumanoidCPU
202
2ms
11 Aug 2025
Evil Numbers
HumanoidCPU
194
2ms
10 Aug 2025
Leap Years
HumanoidCPU
1,459
3ms
6 Aug 2025
Fibonacci
HumanoidCPU
288
2ms
6 Aug 2025
Rijndael S-box
HumanoidCPU
847
2ms
4 Aug 2025
Prime Numbers
HumanoidCPU
170
2ms
2 Aug 2025
Ascending Primes
HumanoidCPU
911
2ms
2 Aug 2025
π
Ralac07
1,006
2ms
28 Jul 2025
Tutorial
Bpc-CPU
132
3ms
12 Jul 2025
Mandelbrot
HumanoidCPU
10,208
2ms
30 Jun 2025
Mandelbrot
Shanethegamer
10,208
2ms
23 Jun 2025
Polygon Triangulations
Shanethegamer
5,291
2ms
5 Jun 2025
Catalan’s Constant
HumanoidCPU
1,007
2ms
5 Jun 2025
Kolakoski Constant
HumanoidCPU
1,007
2ms
5 Jun 2025
λ
HumanoidCPU
1,007
2ms
5 Jun 2025
τ
HumanoidCPU
1,007
2ms
5 Jun 2025
π
HumanoidCPU
1,007
2ms
5 Jun 2025
φ
HumanoidCPU
1,007
2ms
5 Jun 2025
γ
HumanoidCPU
1,007
2ms
5 Jun 2025
ln 2
HumanoidCPU
1,007
2ms
5 Jun 2025
𝑒
HumanoidCPU
1,007
2ms
5 Jun 2025
√2
HumanoidCPU
1,007
2ms
5 Jun 2025
Factorial Factorisation
HumanoidCPU
866
2ms
26 May 2025
Sphenic Numbers
Shanethegamer
16,059
7ms
14 May 2025
Semiprime Numbers
Shanethegamer
23,288
4ms
14 May 2025
Highly Composite Numbers
Shanethegamer
635
2ms
14 May 2025
Trinomial Triangle
KatieLG
2,166
2ms
27 Apr 2025
Sphenic Numbers
KatieLG
17,859
3ms
27 Apr 2025
Semiprime Numbers
KatieLG
25,913
4ms
27 Apr 2025