The
Minesweeper
hole will go live in approximately
30 hours
. Why not try and solve it ahead of time?
Recent Solutions
Golfers
Solutions
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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
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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
Shanethegamer
4,089
387ms
15 hours ago
Inventory Sequence
themoonisacheese
33
463ms
26 hours ago
Semiprime Numbers
themoonisacheese
16
4,534ms
3 days ago
Tutorial
Babafaba
80
884ms
14 days ago
Fizz Buzz
snoozingnewt
22
1,127ms
20 days ago
Collatz
themoonisacheese
37
1,939ms
22 days ago
Trinomial Triangle
themoonisacheese
35
1,114ms
23 days ago
Pascal’s Triangle
themoonisacheese
36
1,243ms
23 days ago
Fizz Buzz
LostSyntax21
26
796ms
27 days ago
Tutorial
J09M
28
1,051ms
23 Sep 2025
Foo Fizz Buzz Bar
themoonisacheese
42
2,022ms
16 Sep 2025
Tutorial
snoozingnewt
12
1,584ms
15 Sep 2025
Fizz Buzz
madex
22
962ms
3 Sep 2025
Fizz Buzz
CaedenHarper
22
574ms
28 Aug 2025
Tutorial
Vexxter9
80
1,833ms
21 Aug 2025
Highly Composite Numbers
HumanoidCPU
394
703ms
18 Aug 2025
Hexagonal Spiral
HumanoidCPU
1,137
504ms
18 Aug 2025
Tutorial
dokutan
13
1,069ms
18 Aug 2025
Hilbert Curve
HumanoidCPU
5,120
392ms
18 Aug 2025
Abundant Numbers (Long)
HumanoidCPU
966
783ms
18 Aug 2025
Polyominoes
HumanoidCPU
3,566
546ms
18 Aug 2025
Recamán
HumanoidCPU
899
874ms
18 Aug 2025
Kaprekar Numbers
HumanoidCPU
442
862ms
18 Aug 2025
Happy Numbers
HumanoidCPU
109
753ms
18 Aug 2025
Happy Numbers (Long)
HumanoidCPU
554
722ms
18 Aug 2025
Emirp Numbers (Long)
HumanoidCPU
1,158
376ms
18 Aug 2025
Catalan Numbers
HumanoidCPU
2,874
654ms
18 Aug 2025
Tongue-twisters
HumanoidCPU
525
913ms
18 Aug 2025
Van Eck Sequence
HumanoidCPU
2,557
828ms
17 Aug 2025
Abundant Numbers
HumanoidCPU
165
719ms
16 Aug 2025
Foo Fizz Buzz Bar
dokutan
92
952ms
15 Aug 2025
Leap Years
dokutan
32
996ms
15 Aug 2025
Fizz Buzz
dokutan
60
1,060ms
15 Aug 2025
Look and Say
HumanoidCPU
1,281
409ms
15 Aug 2025
Farey Sequence
HumanoidCPU
4,356
600ms
15 Aug 2025
Diamonds
HumanoidCPU
1,105
596ms
14 Aug 2025
Niven Numbers
HumanoidCPU
93
391ms
14 Aug 2025
Lucky Numbers
HumanoidCPU
4,822
854ms
14 Aug 2025
Inventory Sequence
HumanoidCPU
2,625
614ms
14 Aug 2025
Gijswijt’s Sequence
HumanoidCPU
2,002
758ms
14 Aug 2025
Smith Numbers
HumanoidCPU
1,826
855ms
14 Aug 2025
Vampire Numbers
HumanoidCPU
1,073
712ms
14 Aug 2025
Arithmetic Numbers
HumanoidCPU
37,644
882ms
14 Aug 2025
Odious Numbers (Long)
HumanoidCPU
1,947
393ms
14 Aug 2025
Evil Numbers (Long)
HumanoidCPU
1,952
590ms
14 Aug 2025
N Queens
HumanoidCPU
1,248
574ms
14 Aug 2025
Pernicious Numbers (Long)
HumanoidCPU
20,664
803ms
14 Aug 2025
Divisors
HumanoidCPU
1,168
404ms
14 Aug 2025
Foo Fizz Buzz Bar
HumanoidCPU
5,721
696ms
14 Aug 2025
Emirp Numbers
HumanoidCPU
138
811ms
14 Aug 2025
Prime Numbers (Long)
HumanoidCPU
5,950
974ms
14 Aug 2025
24 Game
HumanoidCPU
12,434
922ms
14 Aug 2025
Niven Numbers (Long)
HumanoidCPU
7,440
933ms
14 Aug 2025
Pascal’s Triangle
HumanoidCPU
771
950ms
13 Aug 2025
Odious Numbers
HumanoidCPU
75
390ms
11 Aug 2025
Evil Numbers
HumanoidCPU
72
673ms
10 Aug 2025
Trinomial Triangle
HumanoidCPU
2,069
648ms
6 Aug 2025
Rijndael S-box
HumanoidCPU
770
761ms
4 Aug 2025
Prime Numbers
HumanoidCPU
73
727ms
2 Aug 2025
Sierpiński Triangle
HumanoidCPU
556
608ms
2 Aug 2025
Sphenic Numbers
HumanoidCPU
8,862
898ms
29 Jul 2025
π
Ralac07
1,005
391ms
28 Jul 2025
Semiprime Numbers
HumanoidCPU
12,791
486ms
28 Jul 2025
Collatz
AstroOrbis
43
2,742ms
18 Jul 2025
Tutorial
xiaoyiming123
28
1,527ms
12 Jul 2025
Tutorial
Bpc-CPU
80
1,841ms
12 Jul 2025
𝑒
BREMAUCY
1,005
698ms
7 Jul 2025
Fibonacci
HumanoidCPU
136
582ms
1 Jul 2025
Mandelbrot
HumanoidCPU
10,006
840ms
30 Jun 2025
Number Spiral
HumanoidCPU
302
782ms
27 Jun 2025
Collatz
HumanoidCPU
3,228
669ms
20 Jun 2025
Quine
sean-niemann
12
562ms
19 Jun 2025
Card Number Validation
themoonisacheese
35
709ms
13 Jun 2025
Christmas Trees
themoonisacheese
62
1,022ms
13 Jun 2025
Ascending Primes
HumanoidCPU
514
409ms
13 Jun 2025