The
Snake
hole will go live in approximately
2 days
. Why not try and solve it ahead of time?
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brainfuck
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Emirp Numbers (Long)
Emojify
Evil Numbers
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
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
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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
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AWK
Bash
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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Factor
Forth
Fortran
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Go
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Groovy
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Hexagony
iogii
J
Janet
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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
352
297ms
60 mins ago
Leap Years
albanian-laundromat
125
292ms
3 days ago
Quine
Steffan153
💎
119
359ms
5 days ago
Quine
zzh1996
🥈
135
317ms
6 days ago
Odious Numbers
JOrE20
🥈
114
351ms
10 days ago
Fibonacci
martindotexe
114
333ms
10 days ago
Catalan Numbers
error256
🥇
107
342ms
11 days ago
Multitap Input
error256
💎
244
312ms
13 days ago
Fibonacci
christos-cantina-security
146
324ms
13 days ago
Multitap Input
albanian-laundromat
🥉
297
387ms
14 days ago
Pernicious Numbers
JOrE20
141
385ms
14 days ago
Leap Years
martindotexe
318
415ms
14 days ago
Poker
albanian-laundromat
🥉
665
456ms
16 days ago
Mandelbrot
albanian-laundromat
🥇
241
424ms
20 days ago
Mandelbrot
error256
🥇
241
499ms
21 days ago
Nim
emgordon154
🥉
328
432ms
21 days ago
Diamonds
AstroOrbis
425
410ms
25 days ago
Morse Decoder
error256
💎
317
431ms
25 days ago
Morse Decoder
albanian-laundromat
🥈
324
469ms
25 days ago
Tutorial
zzh1996
142
427ms
26 days ago
Chess Move Validation
albanian-laundromat
🦄
372
433ms
27 days ago
𝑒
Steffan153
🥇
132
335ms
31 Aug 2026
φ
Steffan153
🥇
135
383ms
30 Aug 2026
√2
Steffan153
🥇
137
383ms
30 Aug 2026
ln 2
Steffan153
💎
133
355ms
30 Aug 2026
τ
Steffan153
🥇
139
341ms
30 Aug 2026
π
Steffan153
🥇
139
378ms
30 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,044
358ms
24 Aug 2026
Tutorial
quasar098
298
416ms
20 Aug 2026
Emojify
scpchicken
1,000
413ms
20 Aug 2026
DFA Simulator
scpchicken
1,714
455ms
20 Aug 2026
Day of Week
scpchicken
1,582
485ms
20 Aug 2026
CSS Colors
scpchicken
5,144
406ms
20 Aug 2026
Continued Fractions
scpchicken
1,077
454ms
20 Aug 2026
Connect Four
scpchicken
🥈
1,844
488ms
20 Aug 2026
Poker
scpchicken
💎
601
451ms
20 Aug 2026
Time Distance
albanian-laundromat
🥈
479
409ms
18 Aug 2026
Card Number Validation
scpchicken
946
351ms
16 Aug 2026
Calendar
scpchicken
🥉
1,642
413ms
16 Aug 2026
brainfuck
scpchicken
🥉
2,845
415ms
16 Aug 2026
Billiards
scpchicken
1,315
366ms
16 Aug 2026
Arrows
scpchicken
1,118
446ms
16 Aug 2026
Arabic to Roman
scpchicken
870
410ms
16 Aug 2026
Foo Fizz Buzz Bar
scpchicken
6,759
346ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,491
336ms
16 Aug 2026
Evil Numbers
scpchicken
135
340ms
16 Aug 2026
Fibonacci
scpchicken
205
356ms
16 Aug 2026
Farey Sequence
scpchicken
5,169
347ms
16 Aug 2026
Factorial Factorisation
scpchicken
903
366ms
16 Aug 2026
Emirp Numbers (Long)
scpchicken
1,436
358ms
16 Aug 2026
Emirp Numbers
scpchicken
212
421ms
16 Aug 2026
Divisors
scpchicken
1,306
375ms
16 Aug 2026
Diamonds
scpchicken
1,232
358ms
16 Aug 2026
Collatz
scpchicken
4,266
332ms
16 Aug 2026
Christmas Trees
scpchicken
640
376ms
16 Aug 2026
Cubes
scpchicken
4,252
374ms
16 Aug 2026
Catalan’s Constant
scpchicken
1,044
375ms
16 Aug 2026
Catalan Numbers
scpchicken
3,012
359ms
16 Aug 2026
ASCII Table
scpchicken
332
343ms
16 Aug 2026
Ascending Primes
scpchicken
652
364ms
16 Aug 2026
Arithmetic Numbers
scpchicken
45,370
423ms
16 Aug 2026
Abundant Numbers (Long)
scpchicken
1,250
417ms
16 Aug 2026
Abundant Numbers
scpchicken
249
426ms
16 Aug 2026
99 Bottles of Beer
scpchicken
12,224
430ms
16 Aug 2026
24 Game
scpchicken
13,834
401ms
16 Aug 2026
12 Days of Christmas
scpchicken
764
360ms
15 Aug 2026
Vampire Numbers
albanian-laundromat
💎
346
2,848ms
14 Aug 2026
Gijswijt’s Sequence
scpchicken
281
412ms
9 Aug 2026
Happy Numbers
scpchicken
🥇
148
349ms
9 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,052
380ms
8 Aug 2026
Ulam Sequence
Steffan153
💎
144
449ms
3 Aug 2026
Catalan Numbers
Steffan153
🥇
107
357ms
3 Aug 2026
Tutorial
JOrE20
142
429ms
3 Aug 2026
Ulam Sequence
dokutan
🥉
689
374ms
31 Jul 2026
Leyland Numbers
albanian-laundromat
278
424ms
28 Jul 2026
Ulam Sequence
albanian-laundromat
🥈
210
578ms
28 Jul 2026
Calendar
albanian-laundromat
💎
463
358ms
26 Jul 2026
Foo Fizz Buzz Bar
albanian-laundromat
204
424ms
26 Jul 2026
Fizz Buzz
albanian-laundromat
165
357ms
26 Jul 2026
Ten-pin Bowling
scpchicken
🥈
532
527ms
20 Jul 2026
Alphabetic Numbers
scpchicken
💎
642
430ms
19 Jul 2026
Prime Numbers (Long)
albanian-laundromat
120
556ms
19 Jul 2026
Zodiac Signs
albanian-laundromat
🥈
378
445ms
18 Jul 2026
12 Days of Christmas
error256
💎
500
418ms
18 Jul 2026
Tongue-twisters
error256
💎
370
397ms
17 Jul 2026
Musical Chords
albanian-laundromat
💎
340
374ms
15 Jul 2026
Reversi
albanian-laundromat
🥉
335
437ms
10 Jul 2026
Card Number Validation
albanian-laundromat
256
379ms
7 Jul 2026
Trinomial Triangle
albanian-laundromat
💎
177
345ms
7 Jul 2026
Catalan Numbers
albanian-laundromat
111
360ms
7 Jul 2026
π
vhoulbreque
1,099
342ms
5 Jul 2026
Repeating Decimals
Shanethegamer
💎
429
351ms
5 Jul 2026
Repeating Decimals
albanian-laundromat
🥈
431
371ms
5 Jul 2026
Alphabetic Numbers
retrohun
3,939
356ms
3 Jul 2026
Nim
albanian-laundromat
🥈
322
399ms
1 Jul 2026
Divisors
retrohun
1,208
326ms
28 Jun 2026
Zeckendorf Representation
albanian-laundromat
260
394ms
28 Jun 2026
Gray Code Encoder
albanian-laundromat
🥉
200
446ms
28 Jun 2026
Fractions
albanian-laundromat
🥈
282
370ms
26 Jun 2026
DFA Simulator
albanian-laundromat
💎
395
430ms
26 Jun 2026