The
Snake
hole will go live in approximately
19 hours
. 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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Foo Fizz Buzz Bar
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Fractions
Game of Life
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Gray Code Decoder
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Hexdump
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Intersection
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Leap Years
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ln 2
Look and Say
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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
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
C
C#
C++
Civet
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Coconut
Common Lisp
Crystal
D
Dart
Elixir
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Forth
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Groovy
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iogii
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Janet
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jq
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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
Chars
Time
Submitted
brainfuck
Natanaelel
307
166ms
6 hours ago
Fibonacci
JOrE20
🥇
35
135ms
18 hours ago
Divisors
JOrE20
67
125ms
18 hours ago
Partition Numbers
Steffan153
72
189ms
2 days ago
Snake
Natanaelel
365
163ms
2 days ago
Pernicious Numbers
snoozingnewt
68
125ms
3 days ago
Fizz Buzz
starxingchenc
82
125ms
6 days ago
Forsyth–Edwards Notation
the-zammers
155
131ms
7 days ago
Chess Move Validation
the-zammers
197
181ms
7 days ago
Scrambled Sort
the-zammers
144
154ms
7 days ago
Nim
the-zammers
182
149ms
7 days ago
Prime Numbers
stackofbears
49
130ms
7 days ago
Snake
ovs-code
217
172ms
7 days ago
π
JOrE20
1,015
125ms
7 days ago
Game of Life
Steffan153
139
459ms
13 days ago
Gray Code Decoder
albanian-laundromat
96
300ms
13 days ago
Transpose Sentence
albanian-laundromat
111
147ms
13 days ago
Fibonacci
Magnus24112
63
2,634ms
13 days ago
Tower of Hanoi
christos-cantina-security
128
150ms
14 days ago
λ
christos-cantina-security
1,016
130ms
14 days ago
Fibonacci
christos-cantina-security
🥇
35
143ms
15 days ago
Chess Move Validation
lynn
187
192ms
15 days ago
Fizz Buzz
Lv0Sys
88
129ms
15 days ago
Ulam Sequence
edsrzf
🥉
82
193ms
16 days ago
Odious Numbers
ovs-code
51
123ms
18 days ago
Evil Numbers
ovs-code
🥇
50
134ms
18 days ago
Chess Move Validation
Natanaelel
223
231ms
20 days ago
Chess Move Validation
Steffan153
💎
154
203ms
24 days ago
Chess Move Validation
koopa
🥈
161
199ms
24 days ago
Chess Move Validation
ovs-code
🥉
167
181ms
24 days ago
Lucky Tickets
GolfingSuccess
🥇
128
168ms
24 days ago
Quine
JOrE20
50
133ms
25 days ago
Chess Move Validation
AidanWalter
734
210ms
26 days ago
Tutorial
Andriamanitra
94
150ms
27 days ago
Tutorial
ovs-code
94
142ms
1 Sep 2026
Tutorial
zzh1996
94
157ms
1 Sep 2026
Lyndon Factorization
ovs-code
105
142ms
30 Aug 2026
π
Steffan153
🥈
70
154ms
27 Aug 2026
12 Days of Christmas
LostSyntax21
495
143ms
27 Aug 2026
𝑒
Natanaelel
59
137ms
26 Aug 2026
Catalan’s Constant
Steffan153
🥇
82
132ms
26 Aug 2026
Factorial Factorisation
Natanaelel
143
164ms
25 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,015
122ms
24 Aug 2026
Thue–Morse Constant
Natanaelel
80
138ms
24 Aug 2026
Thue–Morse Constant
ovs-code
70
125ms
24 Aug 2026
Evil Numbers (Long)
Natanaelel
59
1,267ms
23 Aug 2026
Evil Numbers
Natanaelel
57
148ms
23 Aug 2026
Odious Numbers
Natanaelel
56
132ms
23 Aug 2026
Odious Numbers (Long)
Natanaelel
57
1,090ms
23 Aug 2026
Inventory Sequence
Natanaelel
🥈
73
182ms
23 Aug 2026
Musical Chords
edsrzf
🥉
158
178ms
22 Aug 2026
Game of Life
Natanaelel
187
208ms
21 Aug 2026
Tutorial
quasar098
187
149ms
20 Aug 2026
DFA Simulator
scpchicken
943
155ms
20 Aug 2026
Day of Week
scpchicken
904
252ms
20 Aug 2026
CSS Colors
scpchicken
4,249
173ms
20 Aug 2026
Connect Four
scpchicken
1,391
397ms
20 Aug 2026
Happy Numbers
JOrE20
96
142ms
18 Aug 2026
PalindromemordnilaP
JOrE20
🥇
99
141ms
18 Aug 2026
Number Spiral
Natanaelel
142
143ms
16 Aug 2026
Foo Fizz Buzz Bar
scpchicken
6,731
140ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,463
134ms
16 Aug 2026
Evil Numbers
scpchicken
107
133ms
16 Aug 2026
Farey Sequence
scpchicken
5,141
144ms
16 Aug 2026
Diamonds
scpchicken
1,204
129ms
16 Aug 2026
Cubes
scpchicken
2,950
130ms
16 Aug 2026
Calendar
scpchicken
1,069
182ms
15 Aug 2026
Billiards
scpchicken
648
171ms
15 Aug 2026
Ascending Primes
scpchicken
441
172ms
15 Aug 2026
Christmas Trees
scpchicken
352
146ms
15 Aug 2026
Arrows
scpchicken
1,157
182ms
15 Aug 2026
Arithmetic Numbers
scpchicken
453
426ms
15 Aug 2026
Alphabetic Numbers
scpchicken
700
164ms
15 Aug 2026
99 Bottles of Beer
scpchicken
578
164ms
15 Aug 2026
12 Days of Christmas
scpchicken
772
135ms
15 Aug 2026
Lyndon Factorization
Natanaelel
177
148ms
15 Aug 2026
𝑒
sean-niemann
🥈
58
130ms
14 Aug 2026
Rijndael S-box
Natanaelel
455
163ms
11 Aug 2026
Polyominoes
scpchicken
🥉
256
214ms
11 Aug 2026
Alphabetic Numbers
Natanaelel
212
208ms
11 Aug 2026
Connect Four
Natanaelel
🥉
1,124
1,069ms
11 Aug 2026
Reversi
Natanaelel
🥈
202
165ms
11 Aug 2026
Billiards
Steffan153
🥇
165
166ms
11 Aug 2026
N Queens
edsrzf
🥇
118
169ms
10 Aug 2026
Yellowstone Permutation
Natanaelel
97
2,652ms
8 Aug 2026
Yellowstone Permutation
HumanoidCPU
5,022
132ms
8 Aug 2026
Roman to Arabic
h3ra993huskp
325
292ms
8 Aug 2026
Yellowstone Permutation
ovs-code
88
417ms
7 Aug 2026
Pangram Grep
scpchicken
118
151ms
7 Aug 2026
Transpose Sentence
scpchicken
🥇
101
170ms
7 Aug 2026
τ
JOrE20
1,015
131ms
7 Aug 2026
Prime Numbers
koopa
🥇
43
142ms
7 Aug 2026
Roman to Arabic
jared-hughes
213
309ms
6 Aug 2026
Fizz Buzz
Europe2048
82
132ms
6 Aug 2026
Ulam Sequence
ovs-code
💎
79
3,360ms
5 Aug 2026
Leap Years
JOrE20
50
127ms
5 Aug 2026
Roman to Arabic
pardouin
140
317ms
4 Aug 2026
Ulam Sequence
koopa
🥈
80
285ms
4 Aug 2026
Roman to Arabic
koopa
157
353ms
4 Aug 2026
Quine
Europe2048
41
128ms
4 Aug 2026