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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Emojify
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Factorial Factorisation
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Pascal’s Triangle
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Pernicious Numbers (Long)
Poker
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Prime Numbers
Prime Numbers (Long)
Proximity Grid
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Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
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Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
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Sierpiński Triangle
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Star Wars GPT
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Sudoku
Sudoku (Fill-in)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Transpose Sentence
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United States
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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Floyd-Steinberg Dithering
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Highly Composite Numbers
Minesweeper
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p-adic Expansion
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AWK
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brainfuck
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C++
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D
Dart
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F#
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Forth
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J
Janet
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JavaScript
jq
Julia
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sed
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V
VimL
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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
303
107ms
113 mins ago
Topological Sort
albanian-laundromat
🦄
192
362ms
114 mins ago
Tutorial
Openstreetmapler
162
142ms
3 hours ago
Tower of Hanoi
Shanethegamer
3,585
87ms
19 hours ago
Kolakoski Sequence
snoozingnewt
113
96ms
20 hours ago
Ellipse Perimeters
Shanethegamer
103
188ms
2 days ago
Minesweeper
Shanethegamer
127
109ms
3 days ago
Odious Numbers (Long)
snoozingnewt
53
86ms
5 days ago
Odious Numbers
snoozingnewt
52
86ms
5 days ago
Evil Numbers (Long)
snoozingnewt
54
88ms
5 days ago
Evil Numbers
snoozingnewt
52
86ms
5 days ago
Tongue-twisters
snoozingnewt
346
99ms
6 days ago
Pernicious Numbers
snoozingnewt
🥉
41
92ms
10 days ago
DFA Simulator
snoozingnewt
418
148ms
12 days ago
ISBN
edsrzf
🥈
103
107ms
13 days ago
Polyominoes
snoozingnewt
🥉
975
97ms
13 days ago
Foo Fizz Buzz Bar
snoozingnewt
146
113ms
13 days ago
λ
snoozingnewt
891
110ms
14 days ago
Hilbert Curve
snoozingnewt
💎
470
111ms
14 days ago
Tutorial
luuumine
162
194ms
14 days ago
Tutorial
Babafaba
162
192ms
14 days ago
Leap Years
Babafaba
49
124ms
15 days ago
Farey Sequence
snoozingnewt
139
108ms
15 days ago
Smith Numbers
snoozingnewt
198
211ms
16 days ago
Van Eck Sequence
snoozingnewt
97
120ms
16 days ago
Inventory Sequence
snoozingnewt
106
108ms
17 days ago
Quine
snoozingnewt
80
98ms
18 days ago
Trinomial Triangle
JayXon
💎
87
117ms
18 days ago
Odious Numbers
Babafaba
42
101ms
19 days ago
Fibonacci
plcc0
47
90ms
20 days ago
Levenshtein Distance
plcc0
95
121ms
20 days ago
Arithmetic Numbers
snoozingnewt
103
137ms
20 days ago
Abundant Numbers
snoozingnewt
73
97ms
20 days ago
Abundant Numbers (Long)
snoozingnewt
74
95ms
20 days ago
Pernicious Numbers (Long)
snoozingnewt
92
97ms
21 days ago
Trinomial Triangle
edsrzf
🥈
96
95ms
21 days ago
Collatz
snoozingnewt
85
87ms
22 days ago
Rijndael S-box
JayXon
🥈
111
104ms
22 days ago
Trinomial Triangle
snoozingnewt
🥉
180
115ms
22 days ago
Trinomial Triangle
dokutan
728
109ms
24 days ago
Prime Numbers (Long)
snoozingnewt
75
161ms
24 days ago
Pernicious Numbers
Yax42
54
93ms
26 days ago
Intersection
snoozingnewt
232
146ms
2 Oct 2025
Scrambled Sort
madex
394
166ms
1 Oct 2025
Card Number Validation
sean-niemann
🥈
92
112ms
1 Oct 2025
Trinomial Triangle
blaztoma
207
119ms
30 Sep 2025
Divisors
snoozingnewt
66
112ms
30 Sep 2025
Trinomial Triangle
CaedenHarper
2,075
100ms
30 Sep 2025
Niven Numbers
snoozingnewt
47
106ms
30 Sep 2025
Prime Numbers
snoozingnewt
78
100ms
28 Sep 2025
Leap Years
snoozingnewt
55
129ms
26 Sep 2025
Collatz
kmathis22
95
103ms
25 Sep 2025
Recamán
snoozingnewt
132
110ms
24 Sep 2025
Niven Numbers
albanian-laundromat
🥉
46
102ms
24 Sep 2025
Partition Numbers
snoozingnewt
107
107ms
23 Sep 2025
Game of Life
edsrzf
🥈
120
122ms
21 Sep 2025
Evil Numbers (Long)
fuzzylojik-golf
🥇
43
92ms
19 Sep 2025
Tutorial
snoozingnewt
70
141ms
15 Sep 2025
Happy Numbers (Long)
snoozingnewt
102
96ms
13 Sep 2025
Happy Numbers
snoozingnewt
101
98ms
13 Sep 2025
Morse Decoder
dokutan
899
158ms
12 Sep 2025
Repeating Decimals
albanian-laundromat
💎
256
136ms
12 Sep 2025
United States
dokutan
🥉
169
180ms
11 Sep 2025
Inventory Sequence
blaztoma
95
94ms
4 Sep 2025
𝑒
Jacob385
1,013
94ms
3 Sep 2025
Evil Numbers
fuzzylojik-golf
41
120ms
2 Sep 2025
Prime Numbers
fuzzylojik-golf
48
98ms
31 Aug 2025
Hexagonal Spiral
dokutan
610
102ms
30 Aug 2025
Scrambled Sort
aksyristos
808
137ms
29 Aug 2025
Odious Numbers (Long)
fuzzylojik-golf
🥇
43
93ms
29 Aug 2025
Odious Numbers
fuzzylojik-golf
42
94ms
29 Aug 2025
Pernicious Numbers
fuzzylojik-golf
🥉
41
96ms
29 Aug 2025
Niven Numbers (Long)
fuzzylojik-golf
🥉
62
93ms
29 Aug 2025
Niven Numbers
fuzzylojik-golf
🥉
46
99ms
29 Aug 2025
Fibonacci
fuzzylojik-golf
🥇
40
94ms
29 Aug 2025