The
Minesweeper
hole will go live in approximately
30 hours
. Why not try and solve it ahead of time?
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Golfers
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
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ASCII Table
Billiards
brainfuck
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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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
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Intersection
Inventory Sequence
ISBN
Jacobi Symbol
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Kolakoski Constant
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Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Morse Decoder
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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
Sphenic Numbers
Tower of Hanoi
Turtle
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Assembly
AWK
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brainfuck
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C#
C++
Civet
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COBOL
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Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
Groovy
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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
Bytes
Time
Submitted
Tutorial
Openstreetmapler
217
1,291ms
a min ago
Tower of Hanoi
Shanethegamer
78
1,084ms
12 hours ago
Tower of Hanoi
albanian-laundromat
104
1,130ms
15 hours ago
Kolakoski Sequence
snoozingnewt
163
1,251ms
17 hours ago
Catalan Numbers
snoozingnewt
136
1,137ms
18 hours ago
Minesweeper
snoozingnewt
680
1,881ms
2 days ago
Minesweeper
CaedenHarper
269
1,345ms
3 days ago
Minesweeper
Shanethegamer
184
1,343ms
4 days ago
Odious Numbers (Long)
snoozingnewt
70
1,125ms
5 days ago
Odious Numbers
snoozingnewt
69
1,173ms
5 days ago
Evil Numbers (Long)
snoozingnewt
71
1,151ms
5 days ago
Evil Numbers
snoozingnewt
69
1,140ms
5 days ago
Tongue-twisters
snoozingnewt
362
1,293ms
6 days ago
Pernicious Numbers
snoozingnewt
🥇
44
1,256ms
9 days ago
Ellipse Perimeters
Shanethegamer
113
1,191ms
10 days ago
DFA Simulator
snoozingnewt
🥉
538
1,302ms
12 days ago
Polyominoes
snoozingnewt
🥉
996
1,317ms
13 days ago
√2
JayXon
🥈
67
1,275ms
13 days ago
Foo Fizz Buzz Bar
snoozingnewt
177
1,235ms
13 days ago
Hilbert Curve
snoozingnewt
🥈
564
1,290ms
14 days ago
Tutorial
luuumine
217
1,628ms
14 days ago
Pangram Grep
duckyluuk
140
1,328ms
14 days ago
Topological Sort
albanian-laundromat
🥈
210
1,400ms
14 days ago
Tutorial
Babafaba
217
1,624ms
14 days ago
Farey Sequence
snoozingnewt
121
1,298ms
15 days ago
Smith Numbers
snoozingnewt
186
1,346ms
16 days ago
Van Eck Sequence
snoozingnewt
170
1,370ms
16 days ago
Inventory Sequence
snoozingnewt
182
1,161ms
17 days ago
Fizz Buzz
h3ra993huskp
156
1,389ms
17 days ago
Odious Numbers
Babafaba
51
1,222ms
19 days ago
Abundant Numbers
snoozingnewt
91
1,114ms
20 days ago
Abundant Numbers (Long)
snoozingnewt
92
1,243ms
20 days ago
Pernicious Numbers (Long)
snoozingnewt
101
1,305ms
21 days ago
Fibonacci
snoozingnewt
63
1,199ms
21 days ago
Collatz
snoozingnewt
119
1,176ms
22 days ago
Trinomial Triangle
dokutan
2,074
1,196ms
24 days ago
Fibonacci
ThePixelatedCat
76
1,178ms
24 days ago
Tutorial
ThePixelatedCat
94
1,598ms
24 days ago
Leap Years
Mikey-Beep
76
1,191ms
25 days ago
Divisors
Mikey-Beep
124
1,320ms
25 days ago
Fibonacci
Mikey-Beep
62
1,277ms
26 days ago
Pernicious Numbers
Yax42
52
1,133ms
26 days ago
Intersection
snoozingnewt
271
1,301ms
27 days ago
Trinomial Triangle
JDiLenarda
🥈
131
1,320ms
2 Oct 2025
Trinomial Triangle
edsrzf
🥈
131
1,184ms
2 Oct 2025
Trinomial Triangle
CaedenHarper
2,074
1,147ms
30 Sep 2025
Trinomial Triangle
snoozingnewt
143
1,157ms
30 Sep 2025
Fibonacci
albanian-laundromat
79
1,211ms
30 Sep 2025
Niven Numbers (Long)
snoozingnewt
84
1,275ms
30 Sep 2025
Leap Years
albanian-laundromat
57
1,272ms
30 Sep 2025
Niven Numbers
snoozingnewt
54
1,243ms
30 Sep 2025
Niven Numbers
albanian-laundromat
🥇
48
1,219ms
29 Sep 2025
Hilbert Curve
blaztoma
🥉
881
1,209ms
29 Sep 2025
Prime Numbers
snoozingnewt
88
1,275ms
28 Sep 2025
Leap Years
snoozingnewt
80
1,270ms
26 Sep 2025
Look and Say
dokutan
312
1,295ms
25 Sep 2025
Recamán
snoozingnewt
403
1,270ms
24 Sep 2025
Partition Numbers
snoozingnewt
🥉
117
1,236ms
23 Sep 2025
Star Wars GPT
dokutan
🥈
1,211
1,532ms
22 Sep 2025
Game of Life
edsrzf
💎
132
1,224ms
21 Sep 2025
Tutorial
snoozingnewt
99
1,398ms
15 Sep 2025
Happy Numbers (Long)
snoozingnewt
136
1,246ms
13 Sep 2025
Happy Numbers
snoozingnewt
135
1,187ms
13 Sep 2025
Pangram Grep
snoozingnewt
204
1,226ms
11 Sep 2025
Hilbert Curve
mishak-sys
5,199
1,267ms
10 Sep 2025
Musical Chords
blaztoma
933
1,381ms
6 Sep 2025
Pangram Grep
blaztoma
337
1,257ms
6 Sep 2025
Tutorial
Roujo
96
1,489ms
6 Sep 2025
Evil Numbers
fuzzylojik-golf
49
1,207ms
2 Sep 2025
Odious Numbers
fuzzylojik-golf
50
1,213ms
2 Sep 2025
Odious Numbers (Long)
fuzzylojik-golf
58
1,293ms
2 Sep 2025
Evil Numbers (Long)
fuzzylojik-golf
🥉
58
1,270ms
2 Sep 2025
Leap Years
fuzzylojik-golf
51
1,235ms
2 Sep 2025
Pernicious Numbers
fuzzylojik-golf
🥇
44
1,217ms
2 Sep 2025
Niven Numbers (Long)
fuzzylojik-golf
🥇
64
1,195ms
2 Sep 2025