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
Chars
Time
Submitted
Mandelbrot
snoozingnewt
🥉
184
95ms
2 hours ago
Tutorial
Openstreetmapler
160
87ms
3 hours ago
Tower of Hanoi
albanian-laundromat
118
85ms
18 hours ago
Tower of Hanoi
Shanethegamer
3,591
66ms
19 hours ago
Kolakoski Sequence
snoozingnewt
137
98ms
20 hours ago
Minesweeper
stefangimmillaro
192
137ms
38 hours ago
Ellipse Perimeters
Shanethegamer
126
1,118ms
2 days ago
Minesweeper
albanian-laundromat
218
115ms
4 days ago
Catalan’s Constant
stefangimmillaro
🥉
222
101ms
9 days ago
Card Number Validation
Arkadios200
196
120ms
9 days ago
λ
stefangimmillaro
🥉
222
93ms
9 days ago
γ
stefangimmillaro
💎
221
96ms
9 days ago
Pernicious Numbers
snoozingnewt
🥇
38
100ms
10 days ago
brainfuck
snoozingnewt
433
164ms
10 days ago
Fibonacci
snoozingnewt
47
86ms
11 days ago
Hilbert Curve
snoozingnewt
🥈
536
100ms
12 days ago
DFA Simulator
snoozingnewt
530
141ms
12 days ago
Tutorial
luuumine
160
116ms
14 days ago
Topological Sort
albanian-laundromat
💎
195
2,000ms
14 days ago
Tutorial
Babafaba
160
82ms
14 days ago
Farey Sequence
snoozingnewt
110
105ms
15 days ago
Odious Numbers
Babafaba
40
165ms
16 days ago
Arithmetic Numbers
snoozingnewt
89
204ms
16 days ago
Arithmetic Numbers
stefangimmillaro
🥉
85
187ms
16 days ago
Smith Numbers
snoozingnewt
164
195ms
16 days ago
Van Eck Sequence
snoozingnewt
84
101ms
17 days ago
Inventory Sequence
snoozingnewt
101
89ms
17 days ago
Leyland Numbers
snoozingnewt
178
777ms
17 days ago
Fizz Buzz
h3ra993huskp
93
85ms
17 days ago
Trinomial Triangle
JayXon
💎
93
111ms
18 days ago
ISBN
Arkadios200
178
148ms
18 days ago
Pangram Grep
Arkadios200
132
109ms
18 days ago
PalindromemordnilaP
Arkadios200
132
113ms
18 days ago
Leap Years
Arkadios200
58
91ms
18 days ago
Happy Numbers
Arkadios200
156
131ms
18 days ago
Trinomial Triangle
edsrzf
🥈
105
96ms
19 days ago
Trinomial Triangle
Arkadios200
203
127ms
19 days ago
Pascal’s Triangle
Arkadios200
186
114ms
19 days ago
Christmas Trees
Arkadios200
149
102ms
19 days ago
Pernicious Numbers (Long)
snoozingnewt
60
112ms
21 days ago
Collatz
snoozingnewt
80
83ms
22 days ago
Reverse Polish Notation
snoozingnewt
253
121ms
22 days ago
99 Bottles of Beer
snoozingnewt
389
95ms
22 days ago
Day of Week
snoozingnewt
183
851ms
22 days ago
N Queens
snoozingnewt
238
126ms
22 days ago
Zeckendorf Representation
snoozingnewt
177
131ms
22 days ago
Rock-paper-scissors-Spock-lizard
snoozingnewt
415
134ms
22 days ago
Forsyth–Edwards Notation
snoozingnewt
279
120ms
22 days ago
Catalan Numbers
snoozingnewt
🥉
743
132ms
22 days ago
Factorial Factorisation
snoozingnewt
236
118ms
22 days ago
Lucky Numbers
snoozingnewt
195
114ms
22 days ago
Pascal’s Triangle
snoozingnewt
85
280ms
22 days ago
Niven Numbers (Long)
snoozingnewt
81
114ms
22 days ago
Levenshtein Distance
snoozingnewt
936
775ms
22 days ago
Emirp Numbers (Long)
snoozingnewt
174
151ms
22 days ago
Emirp Numbers
snoozingnewt
150
126ms
22 days ago
Tongue-twisters
snoozingnewt
414
641ms
22 days ago
Recamán
snoozingnewt
94
92ms
22 days ago
Look and Say
snoozingnewt
180
119ms
22 days ago
Gijswijt’s Sequence
snoozingnewt
332
2,004ms
22 days ago
Foo Fizz Buzz Bar
snoozingnewt
120
107ms
22 days ago
Ascending Primes
snoozingnewt
155
4,231ms
22 days ago
Trinomial Triangle
dokutan
2,094
80ms
24 days ago
Niven Numbers (Long)
Yax42
100
128ms
25 days ago
Fibonacci
Yax42
47
81ms
26 days ago
Pernicious Numbers
Yax42
39
84ms
26 days ago
Intersection
snoozingnewt
197
131ms
2 Oct 2025
Trinomial Triangle
snoozingnewt
149
309ms
1 Oct 2025
Divisors
snoozingnewt
75
86ms
30 Sep 2025
Happy Numbers (Long)
snoozingnewt
105
97ms
30 Sep 2025
Trinomial Triangle
stefangimmillaro
🥉
119
163ms
30 Sep 2025
Odious Numbers (Long)
snoozingnewt
51
97ms
30 Sep 2025
Odious Numbers
snoozingnewt
50
97ms
30 Sep 2025
Evil Numbers (Long)
snoozingnewt
52
95ms
30 Sep 2025
Evil Numbers
snoozingnewt
50
87ms
30 Sep 2025