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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Emojify
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Factorial Factorisation
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Game of Life
Gijswijt’s Sequence
Gray Code Decoder
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Happy Numbers
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Hexdump
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Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
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Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
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Medal Tally
Minesweeper
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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
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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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brainfuck
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C#
C++
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D
Dart
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iogii
J
Janet
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jq
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K
Kotlin
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PowerShell
Prolog
Python
R
Raku
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Ruby
Rust
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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
kg583
257
46ms
a min ago
Snake
madex
402
39ms
9 hours ago
Zodiac Signs
kg583
🥇
206
40ms
10 hours ago
Polyominoes
kg583
💎
237
66ms
25 hours ago
Continued Fractions
edsrzf
💎
128
38ms
5 days ago
CSS Colors
kg583
🥈
719
58ms
5 days ago
Continued Fractions
kg583
🥈
131
36ms
6 days ago
ln 2
kg583
68
51ms
7 days ago
Partition Numbers
kg583
💎
78
197ms
9 days ago
Partition Numbers
edsrzf
🥈
81
184ms
9 days ago
Levenshtein Distance
kg583
💎
190
71ms
11 days ago
λ
christos-cantina-security
1,014
38ms
12 days ago
Evil Numbers
christos-cantina-security
105
44ms
12 days ago
Fizz Buzz
refrogerator
204
47ms
12 days ago
Zodiac Signs
edsrzf
🥇
206
41ms
13 days ago
Hexdump
kg583
🥈
197
42ms
16 days ago
Arabic to Roman
albanian-laundromat
🥇
57
44ms
17 days ago
Divisors
jinwoo
268
43ms
18 days ago
Chess Move Validation
edsrzf
🦄
181
48ms
26 days ago
Fibonacci
stellartux
97
45ms
26 days ago
Tutorial
zzh1996
63
53ms
26 days ago
Hilbert Curve
kg583
💎
347
358ms
31 Aug 2026
Thue–Morse Constant
edsrzf
71
41ms
25 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,012
41ms
24 Aug 2026
Thue–Morse Constant
kg583
76
43ms
24 Aug 2026
12 Days of Christmas
edsrzf
🥇
326
69ms
24 Aug 2026
Transpose Sentence
edsrzf
💎
148
44ms
21 Aug 2026
Transpose Sentence
kg583
🥈
160
45ms
21 Aug 2026
Intersection
kg583
🥈
166
44ms
21 Aug 2026
Tutorial
quasar098
207
64ms
20 Aug 2026
Quine
LostSyntax21
54
41ms
20 Aug 2026
Emojify
scpchicken
705
47ms
20 Aug 2026
DFA Simulator
scpchicken
1,981
38ms
20 Aug 2026
Day of Week
scpchicken
1,551
52ms
20 Aug 2026
CSS Colors
scpchicken
4,264
46ms
20 Aug 2026
Continued Fractions
scpchicken
🥉
1,749
44ms
20 Aug 2026
Connect Four
scpchicken
🥈
1,464
49ms
20 Aug 2026
Catalan Numbers
edsrzf
🥇
56
40ms
19 Aug 2026
12 Days of Christmas
kg583
🥇
326
39ms
16 Aug 2026
Calendar
edsrzf
🥇
227
49ms
16 Aug 2026
Calendar
kg583
🥇
227
46ms
16 Aug 2026
Card Number Validation
scpchicken
811
42ms
16 Aug 2026
Calendar
scpchicken
🥉
1,662
46ms
16 Aug 2026
Billiards
scpchicken
1,483
43ms
16 Aug 2026
Arrows
scpchicken
1,078
53ms
16 Aug 2026
Foo Fizz Buzz Bar
scpchicken
6,729
41ms
16 Aug 2026
Farey Sequence
scpchicken
5,139
40ms
16 Aug 2026
Fibonacci
scpchicken
175
47ms
16 Aug 2026
Factorial Factorisation
scpchicken
873
41ms
16 Aug 2026
Emirp Numbers (Long)
scpchicken
1,406
45ms
16 Aug 2026
Emirp Numbers
scpchicken
182
45ms
16 Aug 2026
Divisors
scpchicken
1,276
49ms
16 Aug 2026
Diamonds
scpchicken
1,202
43ms
16 Aug 2026
Collatz
scpchicken
4,236
44ms
16 Aug 2026
Christmas Trees
scpchicken
610
39ms
16 Aug 2026
Cubes
scpchicken
4,222
40ms
16 Aug 2026
Alphabetic Numbers
scpchicken
4,906
41ms
16 Aug 2026
Gijswijt’s Sequence
scpchicken
3,010
41ms
16 Aug 2026
Catalan’s Constant
scpchicken
1,014
44ms
16 Aug 2026
Catalan Numbers
scpchicken
2,982
45ms
16 Aug 2026
ASCII Table
scpchicken
302
42ms
16 Aug 2026
Ascending Primes
scpchicken
622
41ms
16 Aug 2026
Arithmetic Numbers
scpchicken
45,340
42ms
16 Aug 2026
Abundant Numbers (Long)
scpchicken
1,220
41ms
16 Aug 2026
Abundant Numbers
scpchicken
219
50ms
16 Aug 2026
99 Bottles of Beer
scpchicken
12,194
42ms
16 Aug 2026
24 Game
scpchicken
13,804
41ms
16 Aug 2026
12 Days of Christmas
scpchicken
792
43ms
15 Aug 2026
Hexagonal Spiral
bitsandbeyond
447
42ms
14 Aug 2026
Pernicious Numbers
bitsandbeyond
87
41ms
13 Aug 2026
Christmas Trees
edsrzf
🥇
68
37ms
13 Aug 2026
Diamonds
edsrzf
💎
97
41ms
13 Aug 2026
Ordinal Numbers
kg583
🥈
113
41ms
12 Aug 2026
Tongue-twisters
kg583
374
41ms
11 Aug 2026
Forsyth–Edwards Notation
edsrzf
🥈
194
45ms
11 Aug 2026
99 Bottles of Beer
Xzyaihni
367
42ms
10 Aug 2026
12 Days of Christmas
zzh1996
344
41ms
10 Aug 2026
N Queens
edsrzf
💎
132
53ms
9 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,020
37ms
8 Aug 2026
Arabic to Roman
scpchicken
🥇
57
52ms
7 Aug 2026
φ
dokutan
79
44ms
7 Aug 2026
Gijswijt’s Sequence
edsrzf
💎
122
42ms
7 Aug 2026
N Queens
MostParsingVex
🥉
277
46ms
6 Aug 2026
Foo Fizz Buzz Bar
Steffan153
🥇
109
41ms
4 Aug 2026
Foo Fizz Buzz Bar
kg583
🥇
109
42ms
4 Aug 2026
Foo Fizz Buzz Bar
edsrzf
🥇
109
41ms
4 Aug 2026
Fizz Buzz
edsrzf
🥇
78
41ms
4 Aug 2026
brainfuck
scpchicken
2,384
44ms
3 Aug 2026
Roman to Arabic
Steffan153
🥇
87
141ms
3 Aug 2026
Ulam Sequence
dokutan
🥈
572
37ms
31 Jul 2026
Sierpiński Triangle
edsrzf
🥈
81
40ms
30 Jul 2026
Pernicious Numbers
edsrzf
🥉
57
38ms
30 Jul 2026
Jacobi Symbol
edsrzf
💎
183
38ms
29 Jul 2026
Intersection
edsrzf
💎
154
43ms
29 Jul 2026
Arrows
AlephSquirrel
241
47ms
29 Jul 2026
ISBN
edsrzf
🥈
146
36ms
29 Jul 2026
Kolakoski Constant
kg583
🥈
114
48ms
29 Jul 2026
Kolakoski Sequence
kg583
🥈
80
38ms
29 Jul 2026
ISBN
kg583
💎
145
38ms
29 Jul 2026
Ulam Sequence
edsrzf
💎
107
228ms
28 Jul 2026