The
Snake
hole will go live in approximately
4 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
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Leap Years
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ln 2
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Medal Tally
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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
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Reversi
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Rock-paper-scissors-Spock-lizard
Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
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Star Wars GPT
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Sudoku (Fill-in)
Taxicab Numbers
Ten-pin Bowling
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Time Distance
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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
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Semiprime Numbers
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Snake
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Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
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ALGOL 68
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AWK
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brainfuck
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C#
C++
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Crystal
D
Dart
Elixir
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Factor
Forth
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Go
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iogii
J
Janet
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jq
Julia
K
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Python
R
Raku
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Rust
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sed
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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
Polyominoes
kg583
💎
232
404ms
24 mins ago
Scrambled Sort
varhammer
233
13ms
11 hours ago
Tower of Hanoi
denkyuu1
92
9ms
21 hours ago
Star Wars Opening Crawl
kg583
💎
294
38ms
47 hours ago
Continued Fractions
edsrzf
🥈
119
7ms
3 days ago
Partition Numbers
zacjl
🥉
90
51ms
3 days ago
Continued Fractions
kg583
💎
118
6ms
4 days ago
Quine
zzh1996
🥇
26
5ms
4 days ago
Odious Numbers (Long)
albanian-laundromat
60
7ms
5 days ago
Partition Numbers
edsrzf
💎
83
59ms
7 days ago
Partition Numbers
kg583
🥈
89
79ms
7 days ago
Yellowstone Permutation
kg583
133
1,434ms
9 days ago
Tower of Hanoi
christos-cantina-security
112
9ms
10 days ago
ISBN
christos-cantina-security
170
19ms
10 days ago
λ
christos-cantina-security
1,012
6ms
10 days ago
Spelling Numbers
christos-cantina-security
🥇
48
12ms
10 days ago
Alphabetic Numbers
christos-cantina-security
99
52ms
11 days ago
Tongue-twisters
kg583
358
6ms
12 days ago
Zodiac Signs
edsrzf
💎
191
11ms
12 days ago
Roman to Arabic
JOrE20
145
36ms
12 days ago
Zodiac Signs
kg583
🥈
194
11ms
15 days ago
Tower of Hanoi
kg583
89
8ms
16 days ago
Spelling Numbers
albanian-laundromat
🥇
48
10ms
17 days ago
Arabic to Roman
albanian-laundromat
🥇
49
17ms
17 days ago
Hexdump
pardouin
286
28ms
18 days ago
Hexdump
madex
197
18ms
18 days ago
Hexdump
blaztoma
179
14ms
18 days ago
Number Spiral
edsrzf
🥉
120
6ms
21 days ago
Fizz Buzz
JOrE20
84
7ms
22 days ago
Chess Move Validation
AlephSquirrel
🥈
207
11ms
23 days ago
Chess Move Validation
edsrzf
💎
157
13ms
23 days ago
Van Eck Sequence
kg583
🥈
67
17ms
24 days ago
Tutorial
zzh1996
58
6ms
25 days ago
Van Eck Sequence
edsrzf
💎
62
16ms
25 days ago
Ten-pin Bowling
edsrzf
💎
205
20ms
28 Aug 2026
Vampire Numbers
edsrzf
🥇
196
2,495ms
26 Aug 2026
Catalan’s Constant
edsrzf
🥇
100
103ms
26 Aug 2026
Catalan’s Constant
Steffan153
🥇
100
96ms
26 Aug 2026
Fractions
kg583
🥈
73
6ms
25 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,011
6ms
24 Aug 2026
Thue–Morse Constant
edsrzf
88
79ms
24 Aug 2026
Thue–Morse Constant
kg583
89
35ms
24 Aug 2026
Emojify
kg583
153
6ms
23 Aug 2026
CSS Colors
kg583
🥉
703
302ms
23 Aug 2026
Seven Segment
kg583
🥉
141
6ms
22 Aug 2026
Musical Chords
edsrzf
💎
178
82ms
22 Aug 2026
Christmas Trees
varhammer
125
6ms
21 Aug 2026
Tutorial
quasar098
176
7ms
20 Aug 2026
Spelling Numbers
JOrE20
🥇
48
9ms
18 Aug 2026
Arabic to Roman
JOrE20
🥇
49
18ms
18 Aug 2026
ISBN
varhammer
150
7ms
18 Aug 2026
Emojify
edsrzf
💎
128
6ms
18 Aug 2026
Calendar
edsrzf
💎
172
18ms
16 Aug 2026
Foo Fizz Buzz Bar
scpchicken
5,732
7ms
16 Aug 2026
Gijswijt’s Sequence
scpchicken
2,013
6ms
16 Aug 2026
Reverse Polish Notation
kg583
135
6ms
14 Aug 2026
Hexagonal Spiral
bitsandbeyond
357
16ms
14 Aug 2026
Diamonds
Steffan153
🥈
88
9ms
13 Aug 2026
Christmas Trees
edsrzf
🥇
75
5ms
13 Aug 2026
Diamonds
edsrzf
💎
86
6ms
13 Aug 2026
Roman to Arabic
KasperKivimaeki
382
35ms
9 Aug 2026
N Queens
edsrzf
💎
134
50ms
9 Aug 2026
Roman to Arabic
EasyBF-Compiler
461
369ms
9 Aug 2026
Catalan Numbers
JOrE20
84
6ms
9 Aug 2026
Emojify
Steffan153
🥈
129
5ms
8 Aug 2026
Morse Decoder
Steffan153
🥇
146
5ms
8 Aug 2026
Morse Decoder
edsrzf
🥇
146
6ms
8 Aug 2026
Yellowstone Permutation
GolfingSuccess
122
2,218ms
8 Aug 2026
Ascending Primes
edsrzf
🥉
123
49ms
8 Aug 2026
Number Spiral
Steffan153
🥇
110
10ms
8 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,019
8ms
8 Aug 2026
Ascending Primes
Steffan153
💎
118
34ms
8 Aug 2026
Farey Sequence
Steffan153
🥇
79
230ms
8 Aug 2026
Roman to Arabic
LostSyntax21
152
300ms
7 Aug 2026
Arabic to Roman
LostSyntax21
🥇
49
17ms
7 Aug 2026
Evil Numbers
scpchicken
55
5ms
7 Aug 2026
Gijswijt’s Sequence
edsrzf
💎
125
7ms
7 Aug 2026
Collatz
Steffan153
🥇
91
30ms
7 Aug 2026
Prime Numbers (Long)
edsrzf
🥇
56
61ms
7 Aug 2026
Leyland Numbers
edsrzf
🥇
100
93ms
7 Aug 2026
Prime Numbers
edsrzf
🥇
53
6ms
6 Aug 2026
PalindromemordnilaP
Steffan153
🥇
104
10ms
6 Aug 2026
Niven Numbers (Long)
edsrzf
🥇
86
82ms
6 Aug 2026
Niven Numbers
edsrzf
🥇
63
6ms
6 Aug 2026
Gijswijt’s Sequence
Steffan153
🥈
127
7ms
6 Aug 2026
Niven Numbers (Long)
Steffan153
🥇
86
82ms
6 Aug 2026
Niven Numbers
Steffan153
🥇
63
6ms
6 Aug 2026
Happy Numbers (Long)
Steffan153
🥉
109
441ms
6 Aug 2026
Musical Chords
Steffan153
🥈
185
104ms
6 Aug 2026
Roman to Arabic
emgordon154
345
44ms
6 Aug 2026
Roman to Arabic
MostParsingVex
214
169ms
6 Aug 2026
Pernicious Numbers
edsrzf
🥇
50
6ms
6 Aug 2026
Roman to Arabic
aksyristos
332
34ms
5 Aug 2026
Roman to Arabic
not-a-pokemon
128
140ms
5 Aug 2026
ISBN
kg583
💎
109
6ms
5 Aug 2026
Sierpiński Triangle
kg583
🥇
81
6ms
4 Aug 2026
Sierpiński Triangle
Steffan153
🥇
81
6ms
4 Aug 2026
Leyland Numbers
Steffan153
🥇
100
90ms
4 Aug 2026
Prime Numbers (Long)
Steffan153
🥇
56
56ms
4 Aug 2026
Prime Numbers
Steffan153
🥉
55
6ms
4 Aug 2026