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
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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
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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
Semiprime Numbers
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Snake
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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
Chars
Time
Submitted
Tower of Hanoi
Shanethegamer
72
64ms
16 hours ago
Minesweeper
Shanethegamer
130
74ms
3 days ago
Pangram Grep
Ralac07
128
61ms
3 days ago
Trinomial Triangle
dokutan
756
59ms
5 days ago
Look and Say
dokutan
100
63ms
5 days ago
Ellipse Perimeters
Shanethegamer
90
74ms
11 days ago
Tutorial
Babafaba
155
106ms
14 days ago
Quine
snoozingnewt
37
61ms
18 days ago
Odious Numbers
Babafaba
46
67ms
19 days ago
Quine
CaedenHarper
37
62ms
28 Sep 2025
Tutorial
retrohun
155
89ms
19 Sep 2025
Tutorial
targrik
93
90ms
18 Sep 2025
Tutorial
snoozingnewt
69
72ms
15 Sep 2025
Fizz Buzz
snoozingnewt
85
66ms
14 Sep 2025
United States
dokutan
123
88ms
13 Sep 2025
CSS Colors (Inverse)
blaztoma
3,278
93ms
2 Sep 2025
Tutorial
Vexxter9
155
87ms
21 Aug 2025
Highly Composite Numbers
HumanoidCPU
409
67ms
18 Aug 2025
Sphenic Numbers
HumanoidCPU
8,877
71ms
18 Aug 2025
Semiprime Numbers
HumanoidCPU
12,806
85ms
18 Aug 2025
Hilbert Curve
HumanoidCPU
2,092
63ms
18 Aug 2025
Abundant Numbers (Long)
HumanoidCPU
981
61ms
18 Aug 2025
Polyominoes
HumanoidCPU
3,581
64ms
18 Aug 2025
Recamán
HumanoidCPU
914
64ms
18 Aug 2025
Rule 110
HumanoidCPU
10,212
68ms
18 Aug 2025
Number Spiral
HumanoidCPU
317
60ms
18 Aug 2025
Pascal’s Triangle
HumanoidCPU
786
62ms
18 Aug 2025
Kaprekar Numbers
HumanoidCPU
457
62ms
18 Aug 2025
Happy Numbers
HumanoidCPU
124
79ms
18 Aug 2025
Happy Numbers (Long)
HumanoidCPU
569
63ms
18 Aug 2025
Emirp Numbers (Long)
HumanoidCPU
1,173
57ms
18 Aug 2025
Catalan Numbers
HumanoidCPU
2,889
57ms
18 Aug 2025
Cubes
HumanoidCPU
2,950
64ms
18 Aug 2025
Tongue-twisters
HumanoidCPU
540
59ms
18 Aug 2025
Van Eck Sequence
HumanoidCPU
2,572
61ms
17 Aug 2025
Abundant Numbers
HumanoidCPU
180
66ms
16 Aug 2025
Look and Say
HumanoidCPU
1,296
62ms
15 Aug 2025
Leyland Numbers
HumanoidCPU
903
63ms
15 Aug 2025
Farey Sequence
HumanoidCPU
4,371
79ms
15 Aug 2025
Niven Numbers
HumanoidCPU
108
61ms
14 Aug 2025
Lucky Numbers
HumanoidCPU
4,837
71ms
14 Aug 2025
Inventory Sequence
HumanoidCPU
2,640
65ms
14 Aug 2025
Gijswijt’s Sequence
HumanoidCPU
2,017
58ms
14 Aug 2025
Smith Numbers
HumanoidCPU
1,841
62ms
14 Aug 2025
Arithmetic Numbers
HumanoidCPU
37,659
71ms
14 Aug 2025
Odious Numbers (Long)
HumanoidCPU
1,962
63ms
14 Aug 2025
Evil Numbers (Long)
HumanoidCPU
1,967
65ms
14 Aug 2025
N Queens
HumanoidCPU
1,263
65ms
14 Aug 2025
Pernicious Numbers (Long)
HumanoidCPU
20,679
72ms
14 Aug 2025
Divisors
HumanoidCPU
1,183
85ms
14 Aug 2025
Foo Fizz Buzz Bar
HumanoidCPU
5,736
77ms
14 Aug 2025
Prime Numbers (Long)
HumanoidCPU
5,965
63ms
14 Aug 2025
Niven Numbers (Long)
HumanoidCPU
7,455
59ms
14 Aug 2025
Odious Numbers
HumanoidCPU
90
62ms
11 Aug 2025
Evil Numbers
HumanoidCPU
87
62ms
10 Aug 2025
Topological Sort
Shanethegamer
146
260ms
7 Aug 2025
Trinomial Triangle
HumanoidCPU
2,084
90ms
6 Aug 2025
Rijndael S-box
HumanoidCPU
785
70ms
4 Aug 2025
Medal Tally
dokutan
539
72ms
2 Aug 2025
Prime Numbers
HumanoidCPU
108
66ms
2 Aug 2025
Tic-tac-toe
rdeforest
162
97ms
2 Aug 2025
Sierpiński Triangle
HumanoidCPU
420
74ms
2 Aug 2025
π
Ralac07
1,016
78ms
28 Jul 2025
Odious Numbers (Long)
dokutan
52
65ms
21 Jul 2025
Evil Numbers (Long)
dokutan
53
68ms
21 Jul 2025
Abundant Numbers (Long)
dokutan
55
75ms
21 Jul 2025
Abundant Numbers
dokutan
55
67ms
21 Jul 2025
Quine
dokutan
37
63ms
16 Jul 2025
Prime Numbers
dokutan
50
62ms
15 Jul 2025
Pascal’s Triangle
dokutan
60
62ms
15 Jul 2025
Tutorial
Bpc-CPU
155
93ms
12 Jul 2025
Zeckendorf Representation
Shanethegamer
104
64ms
4 Jul 2025
ROT13
dokutan
774
67ms
3 Jul 2025
ISBN
Shanethegamer
93
67ms
2 Jul 2025
CSS Colors (Inverse)
Shanethegamer
2,870
80ms
1 Jul 2025