The
Snake
hole will go live in approximately
3 days
. Why not try and solve it ahead of time?
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ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Chess Move Validation
Christmas Trees
Collatz
Connect Four
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
Musical Chords
N Queens
Nim
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)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
Ulam Sequence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Binary Lambda Calculus
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
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ALGOL 68
ArkScript
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AWK
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BASIC
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brainfuck
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C#
C++
Civet
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Coconut
Common Lisp
Crystal
D
Dart
Elixir
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F#
Factor
Forth
Fortran
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Go
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Groovy
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iogii
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Janet
Java
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jq
Julia
K
Kotlin
Lua
Nim
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Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
Scheme
sed
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Swift
Tcl
TeX
V
VimL
Wren
Zig
Experimental Language
05AB1E
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
ZuzuScript
Hole
All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Chess Move Validation
Christmas Trees
Collatz
Connect Four
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
Musical Chords
N Queens
Nim
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)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
Ulam Sequence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Binary Lambda Calculus
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
Hole
Golfer
Bytes
Time
Submitted
Prime Numbers
Europe2048
99
28ms
46 hours ago
Pascal’s Triangle
JOrE20
118
28ms
47 hours ago
Leap Years
albanian-laundromat
84
28ms
2 days ago
Musical Chords
albanian-laundromat
💎
281
69ms
3 days ago
Poker
albanian-laundromat
💎
627
33ms
5 days ago
Tower of Hanoi
albanian-laundromat
🥉
90
28ms
5 days ago
Billiards
albanian-laundromat
🥉
249
61ms
5 days ago
Calendar
edsrzf
💎
266
65ms
5 days ago
Minesweeper
albanian-laundromat
💎
202
30ms
5 days ago
Set
albanian-laundromat
🥉
296
34ms
5 days ago
Zeckendorf Representation
albanian-laundromat
🥈
160
89ms
5 days ago
Factorial Factorisation
albanian-laundromat
💎
194
33ms
5 days ago
DFA Simulator
albanian-laundromat
🥉
260
40ms
5 days ago
Medal Tally
albanian-laundromat
💎
258
95ms
5 days ago
Game of Life
albanian-laundromat
🥉
177
29ms
5 days ago
Inventory Sequence
albanian-laundromat
107
29ms
5 days ago
Emirp Numbers (Long)
albanian-laundromat
188
314ms
5 days ago
Proximity Grid
albanian-laundromat
💎
223
62ms
5 days ago
Zodiac Signs
albanian-laundromat
💎
216
65ms
5 days ago
Prime Numbers (Long)
albanian-laundromat
108
246ms
5 days ago
Van Eck Sequence
albanian-laundromat
111
31ms
5 days ago
Abundant Numbers (Long)
albanian-laundromat
112
34ms
5 days ago
Abundant Numbers
albanian-laundromat
112
30ms
5 days ago
Ordinal Numbers
albanian-laundromat
🥉
138
28ms
5 days ago
Rule 110
albanian-laundromat
🥉
187
969ms
5 days ago
99 Bottles of Beer
albanian-laundromat
357
88ms
5 days ago
Calendar
albanian-laundromat
🥈
270
58ms
5 days ago
Fibonacci
albanian-laundromat
🥇
66
29ms
6 days ago
Apéry’s Constant
JOrE20
322
41ms
8 days ago
United States
christos-cantina-security
843
38ms
11 days ago
Pascal’s Triangle
christos-cantina-security
1,029
35ms
11 days ago
Pernicious Numbers
albanian-laundromat
🥇
68
29ms
12 days ago
Forsyth–Edwards Notation
albanian-laundromat
🥉
205
30ms
12 days ago
Tower of Hanoi
zzh1996
🥇
89
29ms
12 days ago
Billiards
zzh1996
💎
224
29ms
12 days ago
Pernicious Numbers
CornerMercury
🥇
68
29ms
12 days ago
Sudoku (Fill-in)
albanian-laundromat
💎
329
31ms
12 days ago
Sudoku (Fill-in)
bitsandbeyond
🥈
340
30ms
12 days ago
Spelling Numbers
JOrE20
551
66ms
14 days ago
Collatz
dpethes
198
29ms
14 days ago
Pangram Grep
dpethes
🥉
123
30ms
15 days ago
Odious Numbers
albanian-laundromat
66
27ms
16 days ago
Odious Numbers (Long)
albanian-laundromat
🥇
67
30ms
16 days ago
Evil Numbers (Long)
albanian-laundromat
🥇
65
30ms
16 days ago
Evil Numbers
albanian-laundromat
🥇
64
29ms
16 days ago
Mandelbrot
albanian-laundromat
215
40ms
17 days ago
Collatz
error256
🥇
116
29ms
17 days ago
Calendar
JOrE20
🥉
999
67ms
17 days ago
Ulam Sequence
albanian-laundromat
💎
137
33ms
17 days ago
Foo Fizz Buzz Bar
albanian-laundromat
189
98ms
17 days ago
Mahjong
JOrE20
🥉
977
30ms
17 days ago
Maze
JOrE20
1,598
77ms
17 days ago
Kaprekar Numbers
JOrE20
🥈
121
871ms
17 days ago
Kolakoski Sequence
albanian-laundromat
123
30ms
18 days ago
12 Days of Christmas
albanian-laundromat
536
69ms
18 days ago
Collatz
albanian-laundromat
🥇
116
29ms
18 days ago
ASCII Table
albanian-laundromat
191
30ms
18 days ago
Hexdump
albanian-laundromat
🥉
325
72ms
18 days ago
Star Wars Opening Crawl
albanian-laundromat
💎
474
72ms
18 days ago
Gray Code Encoder
albanian-laundromat
🥈
105
29ms
18 days ago
Thue–Morse Constant
albanian-laundromat
171
55ms
18 days ago
Time Distance
albanian-laundromat
💎
376
67ms
18 days ago
Morse Decoder
albanian-laundromat
🥈
270
73ms
18 days ago
Christmas Trees
albanian-laundromat
128
30ms
18 days ago
Topological Sort
albanian-laundromat
💎
213
237ms
18 days ago
Morse Encoder
albanian-laundromat
🥈
235
90ms
18 days ago
Happy Numbers
error256
100
29ms
18 days ago
Niven Numbers (Long)
retrohun
132
29ms
19 days ago
Niven Numbers
retrohun
99
29ms
19 days ago
Card Number Validation
albanian-laundromat
155
29ms
19 days ago
Lucky Numbers
albanian-laundromat
144
52ms
19 days ago
Reverse Polish Notation
albanian-laundromat
🥉
298
68ms
19 days ago
Diamonds
albanian-laundromat
167
30ms
19 days ago
Gijswijt’s Sequence
albanian-laundromat
190
244ms
19 days ago
Ulam Sequence
error256
🥈
140
42ms
19 days ago
Mandelbrot
error256
💎
197
349ms
19 days ago
𝑒
albanian-laundromat
🥈
148
34ms
19 days ago
Day of Week
albanian-laundromat
🥇
103
70ms
19 days ago
Lucky Tickets
albanian-laundromat
🥈
231
63ms
19 days ago
Partition Numbers
albanian-laundromat
153
30ms
20 days ago
Divisors
albanian-laundromat
🥇
97
30ms
20 days ago
Happy Numbers (Long)
albanian-laundromat
139
91ms
20 days ago
Fibonacci
rollershutter
121
29ms
20 days ago
Sudoku
bitsandbeyond
💎
587
33ms
20 days ago
φ
albanian-laundromat
🥈
217
51ms
21 days ago
√2
albanian-laundromat
🥈
216
52ms
21 days ago
Kaprekar Numbers
error256
140
647ms
21 days ago
Multitap Input
albanian-laundromat
💎
196
30ms
22 days ago
Repeating Decimals
albanian-laundromat
💎
339
64ms
22 days ago
Pangram Grep
albanian-laundromat
132
29ms
22 days ago
QR Decoder
albanian-laundromat
🥈
333
62ms
22 days ago
Pernicious Numbers (Long)
albanian-laundromat
90
30ms
22 days ago
Smith Numbers
albanian-laundromat
🥉
213
3,302ms
22 days ago
Tongue-twisters
albanian-laundromat
408
29ms
22 days ago
Happy Numbers
albanian-laundromat
100
29ms
22 days ago
Prime Numbers
albanian-laundromat
🥈
76
28ms
22 days ago
Seven Segment
albanian-laundromat
🥉
162
88ms
22 days ago
Fizz Buzz
albanian-laundromat
138
87ms
22 days ago
Arrows
JOrE20
194
34ms
24 days ago
Seven Segment
bitsandbeyond
🥈
156
28ms
25 days ago