The
Minesweeper
hole will go live in approximately
30 hours
. Why not try and solve it ahead of time?
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12 Days of Christmas
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brainfuck
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Odious Numbers (Long)
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Pangram Grep
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Pernicious Numbers (Long)
Poker
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Proximity Grid
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Quine
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Reversi
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Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
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Star Wars GPT
Star Wars Opening Crawl
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Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Transpose Sentence
Trinomial Triangle
United States
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γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
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Floyd-Steinberg Dithering
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Minesweeper
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p-adic Expansion
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D
Dart
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Forth
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Janet
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JavaScript
jq
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VimL
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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
Tutorial
Openstreetmapler
135
1,367ms
a min ago
Tower of Hanoi
stefangimmillaro
50
750ms
7 hours ago
Tower of Hanoi
Shanethegamer
3,583
817ms
15 hours ago
Kolakoski Sequence
snoozingnewt
84
745ms
17 hours ago
SI Units
edsrzf
💎
410
1,091ms
23 hours ago
Emirp Numbers
stefangimmillaro
65
808ms
26 hours ago
Minesweeper
edsrzf
99
810ms
32 hours ago
Game of Life
edsrzf
🥇
86
797ms
33 hours ago
Minesweeper
emgordon154
143
1,523ms
2 days ago
Minesweeper
Shanethegamer
124
917ms
3 days ago
Pernicious Numbers
CaedenHarper
31
1,224ms
3 days ago
Minesweeper
stefangimmillaro
106
1,003ms
3 days ago
Ellipse Perimeters
stefangimmillaro
82
880ms
4 days ago
Collatz
snoozingnewt
70
864ms
5 days ago
Niven Numbers (Long)
snoozingnewt
34
844ms
5 days ago
Diamonds
Babafaba
1,109
855ms
5 days ago
Tongue-twisters
snoozingnewt
316
852ms
6 days ago
Pernicious Numbers (Long)
snoozingnewt
39
1,149ms
7 days ago
Pangram Grep
ndren
138
1,413ms
8 days ago
Pascal’s Triangle
JayXon
🥇
54
976ms
9 days ago
Trinomial Triangle
JayXon
🥉
67
1,117ms
9 days ago
Pernicious Numbers
snoozingnewt
27
891ms
9 days ago
Star Wars GPT
edsrzf
101
1,080ms
10 days ago
brainfuck
snoozingnewt
346
1,151ms
10 days ago
Niven Numbers
snoozingnewt
34
992ms
10 days ago
Levenshtein Distance
snoozingnewt
🥇
72
1,200ms
10 days ago
Divisors
snoozingnewt
51
953ms
10 days ago
Ellipse Perimeters
Shanethegamer
63
836ms
10 days ago
Mahjong
edsrzf
💎
194
1,171ms
11 days ago
Hilbert Curve
snoozingnewt
518
907ms
12 days ago
DFA Simulator
snoozingnewt
185
967ms
12 days ago
√2
JayXon
💎
57
1,027ms
13 days ago
Foo Fizz Buzz Bar
snoozingnewt
110
916ms
13 days ago
φ
pardouin
🥇
57
1,140ms
13 days ago
√2
pardouin
🥈
58
866ms
13 days ago
Tutorial
luuumine
135
1,763ms
14 days ago
φ
JayXon
🥇
57
1,020ms
14 days ago
Tutorial
Babafaba
135
1,512ms
14 days ago
√2
ovs-code
62
959ms
15 days ago
φ
ovs-code
60
998ms
15 days ago
Mahjong
emgordon154
243
1,269ms
15 days ago
√2
stefangimmillaro
🥉
60
1,050ms
15 days ago
φ
stefangimmillaro
🥉
58
904ms
15 days ago
φ
emgordon154
62
1,036ms
15 days ago
Catalan’s Constant
emgordon154
197
1,387ms
15 days ago
Evil Numbers (Long)
snoozingnewt
32
860ms
15 days ago
Evil Numbers
snoozingnewt
31
965ms
15 days ago
Odious Numbers (Long)
snoozingnewt
32
974ms
15 days ago
Odious Numbers
snoozingnewt
31
922ms
15 days ago
Hilbert Curve
canissimia
💎
162
848ms
16 days ago
Smith Numbers
snoozingnewt
154
1,581ms
16 days ago
Van Eck Sequence
snoozingnewt
89
1,090ms
16 days ago
Fizz Buzz
h3ra993huskp
111
1,054ms
17 days ago
Emirp Numbers
snoozingnewt
122
1,049ms
17 days ago
Emirp Numbers (Long)
snoozingnewt
123
1,007ms
17 days ago
Odious Numbers
Babafaba
46
902ms
19 days ago
Diamonds
kmathis22
170
1,032ms
20 days ago
Fibonacci
jacekwladzinski
28
890ms
20 days ago
Fibonacci
snoozingnewt
25
946ms
21 days ago
Trinomial Triangle
edsrzf
🥉
67
1,068ms
22 days ago
Fizz Buzz
snoozingnewt
80
996ms
23 days ago
Trinomial Triangle
dokutan
2,092
1,023ms
24 days ago
Sudoku (Fill-in)
emgordon154
💎
140
4,441ms
24 days ago
Ascending Primes
emgordon154
116
1,653ms
24 days ago
Tutorial
SirBogman
43
1,683ms
24 days ago
Prime Numbers (Long)
albanian-laundromat
48
1,028ms
25 days ago
Leap Years
emgordon154
35
957ms
25 days ago
Rijndael S-box
sean-niemann
🥈
90
1,190ms
25 days ago
Pernicious Numbers
Yax42
30
898ms
26 days ago
Trinomial Triangle
pardouin
🥈
63
887ms
26 days ago
Collatz
kmathis22
82
925ms
26 days ago
Fizz Buzz
sean-niemann
57
829ms
26 days ago
Foo Fizz Buzz Bar
sean-niemann
83
1,051ms
26 days ago
Intersection
snoozingnewt
169
1,126ms
27 days ago
Fibonacci
albanian-laundromat
34
907ms
2 Oct 2025