The
Snake
hole will go live in approximately
12 hours
. Why not try and solve it ahead of time?
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brainfuck
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ln 2
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Nim
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Niven Numbers (Long)
Number Spiral
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Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
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Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
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Reversi
Rijndael S-box
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Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
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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
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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
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ALGOL 68
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Crystal
D
Dart
Elixir
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Factor
Forth
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Go
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Groovy
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iogii
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Janet
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jq
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K
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Nim
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Perl
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Prolog
Python
R
Raku
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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
Chars
Time
Submitted
Maze
kkoenig
💎
180
317ms
7 hours ago
Polyominoes
kkoenig
🥉
238
283ms
7 hours ago
Game of Life
kkoenig
🥇
152
291ms
7 hours ago
Snake
albanian-laundromat
235
644ms
9 hours ago
Mahjong
kkoenig
💎
282
519ms
9 hours ago
Minesweeper
kkoenig
191
304ms
11 hours ago
Look and Say
edsrzf
🥇
126
274ms
12 hours ago
Look and Say
Steffan153
🥇
126
276ms
13 hours ago
Christmas Trees
JayXon
💎
120
275ms
30 hours ago
Polyominoes
Steffan153
🥇
196
273ms
38 hours ago
Polyominoes
edsrzf
🥇
196
283ms
39 hours ago
Odious Numbers (Long)
emgordon154
82
274ms
2 days ago
Evil Numbers (Long)
emgordon154
82
265ms
2 days ago
Abundant Numbers (Long)
emgordon154
113
280ms
2 days ago
Fractions
emgordon154
147
291ms
2 days ago
Billiards
emgordon154
246
284ms
2 days ago
Foo Fizz Buzz Bar
emgordon154
145
279ms
2 days ago
Fizz Buzz
emgordon154
116
277ms
2 days ago
Smith Numbers
emgordon154
183
346ms
2 days ago
Leyland Numbers
emgordon154
191
280ms
2 days ago
Pernicious Numbers (Long)
emgordon154
116
280ms
2 days ago
Card Number Validation
emgordon154
150
288ms
2 days ago
Lucky Numbers
emgordon154
203
278ms
2 days ago
Ten-pin Bowling
kasarino
896
298ms
2 days ago
Divisors
ibeucaly
110
274ms
3 days ago
Snake
madex
239
280ms
4 days ago
Hexdump
ibeucaly
257
283ms
4 days ago
QR Decoder
kkoenig
🥉
187
270ms
4 days ago
Rule 110
kkoenig
💎
135
286ms
4 days ago
Collatz
emgordon154
114
276ms
5 days ago
Happy Numbers (Long)
emgordon154
130
276ms
5 days ago
Arithmetic Numbers
emgordon154
124
346ms
5 days ago
Divisors
emgordon154
109
274ms
5 days ago
Evil Numbers
emgordon154
82
283ms
5 days ago
Niven Numbers (Long)
emgordon154
102
269ms
5 days ago
Forsyth–Edwards Notation
JayXon
🥇
163
280ms
5 days ago
Leap Years
albanian-laundromat
91
273ms
5 days ago
Odious Numbers
emgordon154
82
274ms
5 days ago
Evil Numbers
kkoenig
🥇
78
287ms
5 days ago
Connect Four
kkoenig
🥈
232
288ms
5 days ago
ln 2
DrWoose
1,073
281ms
6 days ago
CSS Colors
JayXon
💎
346
288ms
6 days ago
Christmas Trees
kkoenig
🥈
121
275ms
6 days ago
CSS Colors
kkoenig
🥈
349
267ms
6 days ago
Zodiac Signs
kkoenig
202
305ms
6 days ago
Chess Move Validation
kkoenig
💎
148
296ms
6 days ago
Forsyth–Edwards Notation
kkoenig
🥇
163
282ms
6 days ago
Card Number Validation
albanian-laundromat
146
268ms
7 days ago
Transpose Sentence
albanian-laundromat
172
280ms
7 days ago
Collatz
albanian-laundromat
105
272ms
7 days ago
Lucky Numbers
albanian-laundromat
147
277ms
7 days ago
Star Wars Opening Crawl
albanian-laundromat
💎
344
276ms
7 days ago
Kolakoski Constant
albanian-laundromat
193
278ms
7 days ago
Recamán
albanian-laundromat
121
272ms
7 days ago
Christmas Trees
albanian-laundromat
141
270ms
7 days ago
𝑒
albanian-laundromat
🥇
137
272ms
7 days ago
Kaprekar Numbers
kkoenig
🥉
113
933ms
7 days ago
Recamán
kkoenig
🥇
113
266ms
7 days ago
Gijswijt’s Sequence
kkoenig
🥇
114
277ms
7 days ago
Gijswijt’s Sequence
Steffan153
🥇
114
282ms
7 days ago
Number Spiral
emgordon154
193
274ms
7 days ago
Topological Sort
kkoenig
💎
190
287ms
7 days ago
Leyland Numbers
kkoenig
💎
164
273ms
7 days ago
Proximity Grid
kkoenig
🥈
232
278ms
7 days ago
Tower of Hanoi
albanian-laundromat
92
269ms
7 days ago
Tower of Hanoi
JOrE20
99
274ms
8 days ago
Sierpiński Triangle
Steffan153
🥈
102
288ms
8 days ago
DFA Simulator
kkoenig
💎
235
317ms
8 days ago
Kolakoski Sequence
kkoenig
97
284ms
8 days ago
Intersection
kkoenig
182
278ms
8 days ago
99 Bottles of Beer
kkoenig
🥉
292
288ms
8 days ago
Number Spiral
kkoenig
🥇
143
290ms
8 days ago
Ordinal Numbers
kkoenig
138
299ms
8 days ago
Partition Numbers
kkoenig
🥇
110
305ms
8 days ago
ASCII Table
kkoenig
🥇
152
280ms
8 days ago
Look and Say
kkoenig
🥉
128
296ms
8 days ago
Arabic to Roman
kkoenig
🥈
168
306ms
8 days ago
SI Units
edsrzf
💎
561
680ms
8 days ago
Emojify
kkoenig
159
311ms
8 days ago
Roman to Arabic
kkoenig
143
311ms
8 days ago
Vampire Numbers
kkoenig
🥈
176
3,034ms
8 days ago
Farey Sequence
kkoenig
🥉
108
273ms
8 days ago
Diamonds
kkoenig
🥉
124
294ms
8 days ago
Levenshtein Distance
kkoenig
🥇
207
290ms
8 days ago
Factorial Factorisation
kkoenig
🥈
145
308ms
8 days ago
Billiards
kkoenig
229
291ms
8 days ago
SI Units
kkoenig
🥈
594
297ms
8 days ago
Tic-tac-toe
kkoenig
168
315ms
8 days ago
Poker
kkoenig
🥈
359
310ms
8 days ago
Alphabetic Numbers
kkoenig
🥈
219
284ms
8 days ago
Transpose Sentence
kkoenig
173
289ms
8 days ago
Star Wars GPT
kkoenig
🥇
229
318ms
8 days ago
Zeckendorf Representation
kkoenig
155
276ms
8 days ago
Sierpiński Triangle
kkoenig
💎
98
293ms
8 days ago
Tutorial
AllMeatball
136
358ms
8 days ago
Forsyth–Edwards Notation
KasperKivimaeki
🥉
173
286ms
8 days ago
Fibonacci
bpharaldsson
80
303ms
9 days ago
Medal Tally
kkoenig
203
277ms
9 days ago
Set
kkoenig
228
290ms
9 days ago
Reversi
albanian-laundromat
💎
213
318ms
9 days ago