The
Snake
hole will go live in approximately
16 hours
. Why not try and solve it ahead of time?
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Nim
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PalindromemordnilaP
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𝑒
Apéry’s Constant
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Crossword
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Floyd-Steinberg Dithering
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p-adic Expansion
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Arturo
Befunge
BQN
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Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
Knight
Lily
Luau
Odin
Picat
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Racket
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Stax
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
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Arrows
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Billiards
brainfuck
Calendar
Card Number Validation
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Catalan’s Constant
Chess Move Validation
Christmas Trees
Collatz
Connect Four
Continued Fractions
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
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Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
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Foo Fizz Buzz Bar
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Fractions
Game of Life
Gijswijt’s Sequence
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Gray Code Encoder
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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
ASCII Table
Zazerg
132
3ms
5 hours ago
ASCII Table
GrayJoKing
💎
80
2ms
26 hours ago
ASCII Table
madex
🥈
97
2ms
39 hours ago
ASCII Table
emgordon154
174
3ms
2 days ago
Snake
albanian-laundromat
149
45ms
2 days ago
Pernicious Numbers
snoozingnewt
54
2ms
3 days ago
Calendar
albanian-laundromat
💎
326
9ms
8 days ago
Scrambled Sort
albanian-laundromat
💎
154
14ms
11 days ago
Vampire Numbers
edsrzf
617
2ms
12 days ago
Catalan Numbers
edsrzf
🥇
17
3ms
12 days ago
Tutorial
Languag3
171
4ms
13 days ago
Poker
christos-cantina-security
10,522
7ms
14 days ago
Fibonacci
christos-cantina-security
329
2ms
14 days ago
Gray Code Encoder
albanian-laundromat
🥈
48
40ms
16 days ago
Proximity Grid
albanian-laundromat
💎
191
310ms
17 days ago
Musical Chords
albanian-laundromat
💎
117
10ms
18 days ago
Tutorial
retrohun
100
3ms
25 days ago
Quine
Nyfii
🥇
8
2ms
27 days ago
Tutorial
o0lit3
42
3ms
1 Sep 2026
Tutorial
zzh1996
42
4ms
31 Aug 2026
Chess Move Validation
zzh1996
🦄
87
9ms
29 Aug 2026
Poker
blaztoma
🥉
379
5ms
25 Aug 2026
Tutorial
quasar098
286
4ms
20 Aug 2026
Ulam Sequence
albanian-laundromat
💎
74
769ms
19 Aug 2026
Gijswijt’s Sequence
scpchicken
4,028
5ms
16 Aug 2026
Kolakoski Constant
zzh1996
🥉
69
5ms
13 Aug 2026
Emojify
zzh1996
91
2ms
11 Aug 2026
Fibonacci
Europe2048
21
2ms
9 Aug 2026
Fizz Buzz
Europe2048
63
2ms
4 Aug 2026
Quine
Europe2048
🥇
8
2ms
4 Aug 2026
Poker
scpchicken
1,483
10ms
3 Aug 2026
Tutorial
scpchicken
167
4ms
3 Aug 2026
ln 2
scpchicken
1,032
3ms
3 Aug 2026
Factorial Factorisation
scpchicken
403
42ms
3 Aug 2026
Farey Sequence
scpchicken
175
8ms
3 Aug 2026
Evil Numbers (Long)
scpchicken
172
20ms
3 Aug 2026
Evil Numbers
scpchicken
168
3ms
3 Aug 2026
Emojify
scpchicken
2,286
3ms
3 Aug 2026
Emirp Numbers (Long)
scpchicken
575
533ms
3 Aug 2026
Emirp Numbers
scpchicken
551
37ms
3 Aug 2026
Divisors
scpchicken
213
18ms
3 Aug 2026
Diamonds
scpchicken
448
6ms
3 Aug 2026
DFA Simulator
scpchicken
1,866
266ms
3 Aug 2026
Day of Week
scpchicken
1,415
46ms
3 Aug 2026
Cubes
scpchicken
1,377
8ms
3 Aug 2026
CSS Colors
scpchicken
5,996
509ms
3 Aug 2026
Continued Fractions
scpchicken
1,087
9ms
3 Aug 2026
Connect Four
scpchicken
🥈
1,085
746ms
3 Aug 2026
Collatz
scpchicken
175
108ms
3 Aug 2026
Christmas Trees
scpchicken
461
4ms
3 Aug 2026
Catalan’s Constant
scpchicken
1,009
3ms
2 Aug 2026
Catalan Numbers
scpchicken
45
3ms
2 Aug 2026
Card Number Validation
scpchicken
1,051
20ms
2 Aug 2026
brainfuck
scpchicken
2,327
695ms
2 Aug 2026
Billiards
scpchicken
🥈
1,293
18ms
2 Aug 2026
ASCII Table
scpchicken
347
3ms
2 Aug 2026
Ascending Primes
scpchicken
424
27ms
2 Aug 2026
Arithmetic Numbers
scpchicken
345
1,344ms
2 Aug 2026
Arrows
scpchicken
375
4ms
2 Aug 2026
Arabic to Roman
scpchicken
3,123
86ms
2 Aug 2026
Abundant Numbers (Long)
scpchicken
196
742ms
2 Aug 2026
Abundant Numbers
scpchicken
196
31ms
2 Aug 2026
99 Bottles of Beer
scpchicken
972
9ms
2 Aug 2026
24 Game
scpchicken
25,004
46ms
2 Aug 2026
12 Days of Christmas
scpchicken
1,790
4ms
2 Aug 2026
Polyominoes
scpchicken
🥉
1,487
3,120ms
2 Aug 2026
Hilbert Curve
scpchicken
💎
981
35ms
2 Aug 2026
Star Wars Opening Crawl
scpchicken
💎
2,619
45ms
2 Aug 2026
Proximity Grid
scpchicken
🥈
826
390ms
2 Aug 2026
Ulam Sequence
scpchicken
🥈
370
1,101ms
2 Aug 2026
Alphabetic Numbers
scpchicken
💎
1,348
96ms
2 Aug 2026
Calendar
scpchicken
🥈
1,034
13ms
2 Aug 2026
Scrambled Sort
scpchicken
🥈
1,424
76ms
2 Aug 2026
Foo Fizz Buzz Bar
scpchicken
651
20ms
2 Aug 2026
Ulam Sequence
dokutan
🥉
1,038
3ms
31 Jul 2026
Quine
1208nn
13
2ms
29 Jul 2026
Tutorial
1208nn
286
3ms
25 Jul 2026
12 Days of Christmas
mikelou1
5,159
5ms
18 Jul 2026
Nim
jesterjunk
🦄
176
6ms
17 Jul 2026
Quine
zzh1996
🥇
8
2ms
15 Jul 2026
Connect Four
jesterjunk
💎
257
94ms
12 Jul 2026
Quine
EasyBF-Compiler
🥇
8
2ms
10 Jul 2026
Vampire Numbers
fuzzylojik-golf
617
2ms
8 Jul 2026
γ
retrohun
1,007
3ms
23 Jun 2026
Alphabetic Numbers
retrohun
5,899
5ms
22 Jun 2026
Arithmetic Numbers
retrohun
53,020
36ms
22 Jun 2026
Ascending Primes
retrohun
714
2ms
22 Jun 2026
Fibonacci
scpchicken
22
2ms
19 Jun 2026
Tutorial
LaconicLuna
286
3ms
9 Jun 2026
γ
Haksell
2,022
4ms
31 May 2026
Happy Numbers
Haksell
358
2ms
30 May 2026
Alphabetic Numbers
CaedenHarper
9,791
7ms
21 May 2026
Tutorial
zgialor-lab
66
3ms
20 May 2026
Continued Fractions
GrayJoKing
💎
61
4ms
20 May 2026
Gijswijt’s Sequence
GrayJoKing
💎
82
7ms
19 May 2026
Taxicab Numbers
GrayJoKing
💎
100
351ms
19 May 2026
Quine
oaiqjuy
🥇
8
3ms
19 May 2026
Fizz Buzz
zgialor-lab
103
3ms
18 May 2026
Fibonacci
zgialor-lab
21
2ms
18 May 2026
Trinomial Triangle
GrayJoKing
💎
35
3ms
18 May 2026