The
Minesweeper
hole will go live in approximately
26 hours
. Why not try and solve it ahead of time?
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brainfuck
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Factorial Factorisation
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Fractions
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Odious Numbers (Long)
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PalindromemordnilaP
Pangram Grep
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Pascal’s Triangle
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Pernicious Numbers (Long)
Poker
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Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
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Repeating Decimals
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Reversi
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Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
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Star Wars GPT
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Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Transpose Sentence
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Vampire Numbers
Van Eck Sequence
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γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
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Flags
Floyd-Steinberg Dithering
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Minesweeper
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p-adic Expansion
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AWK
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Dart
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Forth
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Janet
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VimL
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05AB1E
ALGOL 68
APL
Arturo
Befunge
BQN
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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
Vampire Numbers
blaztoma
187
527ms
57 mins ago
Mandelbrot
snoozingnewt
198
128ms
2 hours ago
Tutorial
Openstreetmapler
153
4ms
3 hours ago
Zodiac Signs
blaztoma
480
4ms
7 hours ago
π
Babafaba
48
275ms
8 hours ago
φ
blaztoma
🥇
31
53ms
9 hours ago
Tower of Hanoi
Shanethegamer
3,581
3ms
19 hours ago
Kolakoski Sequence
snoozingnewt
69
4ms
20 hours ago
Catalan Numbers
snoozingnewt
58
29ms
22 hours ago
Partition Numbers
blaztoma
67
3ms
2 days ago
ln 2
snoozingnewt
🥇
29
1,442ms
3 days ago
Evil Numbers
blaztoma
46
3ms
3 days ago
Trinomial Triangle
nwellnhof
💎
44
3ms
3 days ago
Divisors
blaztoma
39
3ms
4 days ago
Emirp Numbers
blaztoma
93
43ms
5 days ago
Emojify
blaztoma
150
4ms
5 days ago
Abundant Numbers
blaztoma
69
4ms
5 days ago
United States
blaztoma
103
3ms
5 days ago
λ
blaztoma
192
2,162ms
5 days ago
τ
blaztoma
29
283ms
5 days ago
π
Emutis
27
283ms
5 days ago
π
blaztoma
27
291ms
5 days ago
𝑒
blaztoma
27
37ms
5 days ago
√2
blaztoma
🥇
27
52ms
5 days ago
Ellipse Perimeters
Shanethegamer
67
3ms
5 days ago
Odious Numbers
Babafaba
39
3ms
6 days ago
Kolakoski Constant
blaztoma
91
2,234ms
7 days ago
Morse Encoder
blaztoma
201
3ms
7 days ago
Morse Decoder
blaztoma
155
3ms
7 days ago
Pernicious Numbers
snoozingnewt
28
3ms
10 days ago
Look and Say
iczelia
50
4ms
11 days ago
Topological Sort
iczelia
204
6ms
11 days ago
Trinomial Triangle
iczelia
65
5ms
11 days ago
Game of Life
blaztoma
103
5ms
12 days ago
Hilbert Curve
snoozingnewt
🥉
455
3ms
12 days ago
DFA Simulator
snoozingnewt
207
4ms
12 days ago
Trinomial Triangle
saito-ta
🥈
50
3ms
12 days ago
Ellipse Perimeters
saito-ta
49
3ms
13 days ago
Partition Numbers
iczelia
58
2,147ms
13 days ago
Diamonds
iczelia
76
7ms
14 days ago
Tutorial
luuumine
153
4ms
14 days ago
Tutorial
Babafaba
153
4ms
14 days ago
Farey Sequence
snoozingnewt
122
3ms
15 days ago
Catalan Numbers
iczelia
52
30ms
16 days ago
φ
iczelia
35
60ms
16 days ago
√2
iczelia
28
57ms
16 days ago
Quine
iczelia
🥇
21
3ms
16 days ago
Smith Numbers
snoozingnewt
172
2,426ms
16 days ago
Van Eck Sequence
snoozingnewt
73
3ms
17 days ago
Inventory Sequence
snoozingnewt
54
3ms
17 days ago
Leyland Numbers
snoozingnewt
91
38ms
17 days ago
Fizz Buzz
h3ra993huskp
48
3ms
17 days ago
Emirp Numbers (Long)
snoozingnewt
103
27ms
17 days ago
Quine
snoozingnewt
🥇
21
4ms
18 days ago
τ
iczelia
29
314ms
19 days ago
π
iczelia
27
305ms
19 days ago
Prime Numbers
iczelia
40
3ms
19 days ago
Pascal’s Triangle
iczelia
62
3ms
20 days ago
Arithmetic Numbers
snoozingnewt
72
1,311ms
20 days ago
Abundant Numbers
snoozingnewt
69
3ms
20 days ago
Abundant Numbers (Long)
snoozingnewt
69
13ms
20 days ago
Pernicious Numbers (Long)
snoozingnewt
52
4ms
21 days ago
Collatz
snoozingnewt
65
6ms
22 days ago
Pascal’s Triangle
SirBogman
42
3ms
23 days ago
Trinomial Triangle
SirBogman
🥉
52
3ms
23 days ago
Trinomial Triangle
dokutan
1,745
3ms
23 days ago
Abundant Numbers (Long)
gusruben
50
53ms
25 days ago
Abundant Numbers
gusruben
50
6ms
25 days ago
Pernicious Numbers
Yax42
35
3ms
26 days ago
Ordinal Numbers
blaztoma
55
4ms
27 days ago
Pascal’s Triangle
sean-niemann
36
3ms
27 days ago
Intersection
snoozingnewt
153
7ms
2 Oct 2025
Fibonacci
jacekwladzinski
49
3ms
2 Oct 2025
Trinomial Triangle
snoozingnewt
83
3ms
1 Oct 2025
Prime Numbers
LostSyntax21
44
3ms
30 Sep 2025