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Minesweeper
hole will go live in approximately
22 hours
. Why not try and solve it ahead of time?
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Golfers
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12 Days of Christmas
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99 Bottles of Beer
Abundant Numbers
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Arrows
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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
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Assembly
AWK
Bash
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brainfuck
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C#
C++
Civet
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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
Pernicious Numbers
snoozingnewt
40
66ms
23 mins ago
Set
snoozingnewt
🥉
130
943ms
4 hours ago
Tutorial
Openstreetmapler
158
86ms
7 hours ago
Tower of Hanoi
Shanethegamer
3,583
71ms
23 hours ago
Proximity Grid
snoozingnewt
438
4,309ms
32 hours ago
Zodiac Signs
snoozingnewt
🥉
448
127ms
5 days ago
Zeckendorf Representation
snoozingnewt
144
83ms
5 days ago
Topological Sort
snoozingnewt
🥉
467
260ms
5 days ago
Star Wars Opening Crawl
snoozingnewt
🥉
578
101ms
5 days ago
Medal Tally
snoozingnewt
310
123ms
5 days ago
Lucky Tickets
snoozingnewt
245
91ms
5 days ago
ISBN
snoozingnewt
120
86ms
5 days ago
Intersection
snoozingnewt
158
85ms
5 days ago
Fractions
snoozingnewt
128
81ms
5 days ago
Ten-pin Bowling
snoozingnewt
300
111ms
5 days ago
Trinomial Triangle
dokutan
1,070
71ms
6 days ago
Emirp Numbers (Long)
dokutan
452
86ms
6 days ago
𝑒
Babafaba
1,013
68ms
6 days ago
Ellipse Perimeters
Shanethegamer
93
73ms
7 days ago
N Queens
snoozingnewt
🥉
126
86ms
7 days ago
Van Eck Sequence
snoozingnewt
64
95ms
7 days ago
Morse Encoder
snoozingnewt
🥉
326
93ms
7 days ago
PalindromemordnilaP
snoozingnewt
177
85ms
7 days ago
Seven Segment
snoozingnewt
267
83ms
7 days ago
Card Number Validation
snoozingnewt
🥉
95
75ms
7 days ago
Arrows
snoozingnewt
171
104ms
7 days ago
Diamonds
snoozingnewt
🥉
132
78ms
8 days ago
Christmas Trees
snoozingnewt
92
80ms
8 days ago
Sierpiński Triangle
snoozingnewt
92
76ms
8 days ago
Reverse Polish Notation
snoozingnewt
181
134ms
8 days ago
Rule 110
snoozingnewt
158
101ms
8 days ago
Happy Numbers
snoozingnewt
84
103ms
8 days ago
Happy Numbers (Long)
snoozingnewt
84
115ms
8 days ago
Arabic to Roman
snoozingnewt
🥇
40
134ms
8 days ago
Mandelbrot
snoozingnewt
137
228ms
10 days ago
Kolakoski Constant
snoozingnewt
905
81ms
10 days ago
Jacobi Symbol
snoozingnewt
239
83ms
10 days ago
Hilbert Curve
snoozingnewt
🥉
487
85ms
10 days ago
Game of Life
snoozingnewt
309
111ms
10 days ago
Arrows
SteveHales
154
125ms
10 days ago
brainfuck
snoozingnewt
179
814ms
10 days ago
Gijswijt’s Sequence
snoozingnewt
147
2,325ms
11 days ago
Look and Say
snoozingnewt
66
102ms
11 days ago
Lucky Numbers
snoozingnewt
70
176ms
11 days ago
Kolakoski Sequence
snoozingnewt
70
73ms
11 days ago
Number Spiral
snoozingnewt
147
93ms
11 days ago
Kaprekar Numbers
snoozingnewt
286
80ms
11 days ago
Vampire Numbers
snoozingnewt
520
84ms
11 days ago
Cubes
snoozingnewt
🥉
267
102ms
11 days ago
99 Bottles of Beer
snoozingnewt
226
102ms
11 days ago
Morse Decoder
snoozingnewt
🥉
224
91ms
11 days ago
Tongue-twisters
snoozingnewt
359
81ms
11 days ago
Repeating Decimals
snoozingnewt
🥈
204
98ms
11 days ago
QR Decoder
snoozingnewt
🥉
205
93ms
11 days ago
Billiards
snoozingnewt
🥈
187
126ms
11 days ago
λ
snoozingnewt
🥉
518
96ms
11 days ago
Spelling Numbers
snoozingnewt
💎
304
99ms
11 days ago
DFA Simulator
snoozingnewt
💎
183
100ms
11 days ago
Time Distance
snoozingnewt
💎
215
92ms
11 days ago
Catalan Numbers
snoozingnewt
🥉
1,409
81ms
12 days ago
Forsyth–Edwards Notation
snoozingnewt
173
92ms
12 days ago
24 Game
EthanSansom
526
4,691ms
12 days ago
Evil Numbers
EthanSansom
55
96ms
13 days ago
Scrambled Sort
DialFrost
🥈
88
157ms
13 days ago
Scrambled Sort
ovs-code
💎
83
179ms
13 days ago
Scrambled Sort
snoozingnewt
🥈
88
136ms
13 days ago
Inventory Sequence
snoozingnewt
90
100ms
13 days ago
SI Units
snoozingnewt
🥉
946
212ms
13 days ago
12 Days of Christmas
EthanSansom
488
82ms
13 days ago
γ
snoozingnewt
903
86ms
13 days ago
ln 2
snoozingnewt
911
111ms
13 days ago
Rijndael S-box
snoozingnewt
697
82ms
13 days ago
𝑒
snoozingnewt
901
84ms
13 days ago
φ
snoozingnewt
909
84ms
13 days ago
√2
snoozingnewt
909
84ms
13 days ago