The
Snake
hole will go live in approximately
34 hours
. Why not try and solve it ahead of time?
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brainfuck
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Emirp Numbers (Long)
Emojify
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Evil Numbers (Long)
Factorial Factorisation
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Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Gray Code Decoder
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Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
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Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
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Maze
Medal Tally
Minesweeper
Morse Decoder
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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
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
Groovy
Haskell
Hexagony
iogii
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
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
Snake
albanian-laundromat
474
15ms
34 hours ago
Snake
madex
759
21ms
40 hours ago
Zodiac Signs
albanian-laundromat
🥈
402
16ms
41 hours ago
Calendar
albanian-laundromat
💎
725
18ms
7 days ago
Fibonacci
albanian-laundromat
140
11ms
8 days ago
Ten-pin Bowling
christos-cantina-security
1,888
14ms
14 days ago
Fibonacci
christos-cantina-security
513
11ms
14 days ago
Foo Fizz Buzz Bar
GitMensch
406
15ms
20 days ago
Fizz Buzz
GitMensch
279
11ms
20 days ago
Set
albanian-laundromat
🥉
484
12ms
26 days ago
Fizz Buzz
elgan65536
458
11ms
26 days ago
Chess Move Validation
albanian-laundromat
💎
390
13ms
27 days ago
Chess Move Validation
Matter1024
🥈
437
14ms
27 days ago
Tutorial
Matter1024
183
11ms
1 Sep 2026
Tutorial
zzh1996
186
14ms
1 Sep 2026
Lucky Numbers
JOrE20
337
332ms
29 Aug 2026
Fizz Buzz
KrausRaus
1,382
12ms
28 Aug 2026
Tutorial
albanian-laundromat
183
15ms
25 Aug 2026
N Queens
Matter1024
🥈
1,078
12ms
25 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,087
11ms
24 Aug 2026
Pernicious Numbers (Long)
Matter1024
🥈
236
95ms
22 Aug 2026
Prime Numbers (Long)
Matter1024
230
2,158ms
22 Aug 2026
Partition Numbers
Matter1024
🥈
208
15ms
21 Aug 2026
Niven Numbers (Long)
Matter1024
239
52ms
21 Aug 2026
Leyland Numbers
Matter1024
🥉
263
11ms
21 Aug 2026
Happy Numbers (Long)
Matter1024
256
23ms
21 Aug 2026
Fizz Buzz
Matter1024
221
11ms
21 Aug 2026
Fibonacci
Matter1024
144
12ms
21 Aug 2026
Farey Sequence
Matter1024
282
15ms
21 Aug 2026
Arithmetic Numbers
Matter1024
300
2,355ms
21 Aug 2026
Leap Years
Matter1024
154
12ms
21 Aug 2026
Tutorial
quasar098
386
17ms
20 Aug 2026
Ulam Sequence
albanian-laundromat
💎
247
40ms
20 Aug 2026
Gray Code Decoder
albanian-laundromat
💎
247
37ms
20 Aug 2026
ROT13
Matter1024
🥉
273
16ms
20 Aug 2026
Gray Code Decoder
LostSyntax21
🥈
248
26ms
20 Aug 2026
Yellowstone Permutation
scpchicken
898
294ms
20 Aug 2026
Gijswijt’s Sequence
scpchicken
23,104
16ms
16 Aug 2026
Maze
albanian-laundromat
🥈
468
23ms
16 Aug 2026
Inventory Sequence
albanian-laundromat
202
13ms
16 Aug 2026
Divisors
albanian-laundromat
242
13ms
16 Aug 2026
Prime Numbers (Long)
albanian-laundromat
235
1,387ms
16 Aug 2026
Pangram Grep
albanian-laundromat
🥉
332
14ms
16 Aug 2026
Tic-tac-toe
albanian-laundromat
🥈
335
12ms
16 Aug 2026
Pascal’s Triangle
albanian-laundromat
269
11ms
16 Aug 2026
Happy Numbers (Long)
albanian-laundromat
288
15ms
16 Aug 2026
Partition Numbers
albanian-laundromat
260
20ms
16 Aug 2026
Niven Numbers (Long)
albanian-laundromat
251
83ms
16 Aug 2026
Intersection
albanian-laundromat
🥉
443
13ms
16 Aug 2026
Catalan Numbers
albanian-laundromat
🥈
515
20ms
16 Aug 2026
Lucky Numbers
albanian-laundromat
329
3,114ms
16 Aug 2026
Hexdump
albanian-laundromat
🥈
632
14ms
16 Aug 2026
Card Number Validation
albanian-laundromat
🥈
288
13ms
16 Aug 2026
Van Eck Sequence
albanian-laundromat
🥉
245
14ms
16 Aug 2026
Trinomial Triangle
albanian-laundromat
🥈
281
12ms
16 Aug 2026
Arithmetic Numbers
albanian-laundromat
310
1,138ms
16 Aug 2026
Look and Say
albanian-laundromat
371
13ms
16 Aug 2026
Multitap Input
albanian-laundromat
🥈
352
20ms
16 Aug 2026
Gray Code Encoder
albanian-laundromat
💎
240
15ms
16 Aug 2026
Connect Four
albanian-laundromat
💎
679
42ms
16 Aug 2026
Abundant Numbers
albanian-laundromat
200
11ms
16 Aug 2026
Kaprekar Numbers
albanian-laundromat
🥉
477
11ms
16 Aug 2026
Niven Numbers
albanian-laundromat
🥇
128
11ms
16 Aug 2026
Emirp Numbers
albanian-laundromat
🥇
173
11ms
16 Aug 2026
Evil Numbers
albanian-laundromat
🥇
107
11ms
16 Aug 2026
Odious Numbers
albanian-laundromat
🥇
110
11ms
16 Aug 2026
Pernicious Numbers
albanian-laundromat
🥇
137
11ms
16 Aug 2026
Happy Numbers
albanian-laundromat
🥇
144
11ms
16 Aug 2026
Prime Numbers
albanian-laundromat
🥇
108
12ms
16 Aug 2026
Polyominoes
LostSyntax21
💎
1,211
23ms
14 Aug 2026
Factorial Factorisation
scpchicken
2,654
14ms
10 Aug 2026
Evil Numbers (Long)
scpchicken
1,120
14ms
10 Aug 2026
Emojify
scpchicken
2,672
11ms
10 Aug 2026
Emirp Numbers (Long)
scpchicken
2,632
91ms
10 Aug 2026
Diamonds
scpchicken
1,861
13ms
10 Aug 2026
DFA Simulator
scpchicken
🥈
4,681
25ms
10 Aug 2026
Nim
albanian-laundromat
💎
369
20ms
9 Aug 2026
ISBN
Matter1024
351
15ms
9 Aug 2026
Nim
Matter1024
🥈
372
12ms
9 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,051
13ms
9 Aug 2026
Farey Sequence
scpchicken
972
14ms
8 Aug 2026
Cubes
scpchicken
4,108
14ms
8 Aug 2026
Yellowstone Permutation
JOrE20
915
449ms
8 Aug 2026
24 Game
Matter1024
🥈
10,934
20ms
8 Aug 2026
Reversi
albanian-laundromat
🥈
371
15ms
8 Aug 2026
Catalan Numbers
Matter1024
🥉
1,722
13ms
8 Aug 2026
Continued Fractions
scpchicken
🥉
3,333
14ms
7 Aug 2026
Connect Four
scpchicken
🥈
3,643
152ms
7 Aug 2026
CSS Colors
Matter1024
💎
1,212
12ms
7 Aug 2026
Collatz
scpchicken
856
29ms
6 Aug 2026
Christmas Trees
scpchicken
1,097
12ms
6 Aug 2026
Day of Week
scpchicken
4,804
19ms
6 Aug 2026
Set
Matter1024
💎
462
18ms
5 Aug 2026
Catalan Numbers
scpchicken
2,850
14ms
3 Aug 2026
Catalan’s Constant
scpchicken
1,157
11ms
3 Aug 2026
Card Number Validation
scpchicken
1,992
14ms
3 Aug 2026
brainfuck
scpchicken
3,614
20ms
3 Aug 2026
Billiards
scpchicken
3,355
15ms
3 Aug 2026
Ascending Primes
scpchicken
3,679
26ms
3 Aug 2026
Arrows
scpchicken
2,445
14ms
3 Aug 2026