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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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
Levenshtein Distance
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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
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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
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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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D
Dart
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Forth
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iogii
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Janet
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jq
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K
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R
Raku
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Rust
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sed
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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
madex
373
20ms
16 hours ago
Tower of Hanoi
christos-cantina-security
111
10ms
13 days ago
Levenshtein Distance
christos-cantina-security
314
18ms
13 days ago
Fibonacci
christos-cantina-security
🥇
40
115ms
13 days ago
Happy Numbers
albanian-laundromat
🥇
64
14ms
13 days ago
Chess Move Validation
IanUtley
🦄
147
16ms
23 days ago
Prime Numbers
tomh1012
102
18ms
23 days ago
Tutorial
zzh1996
74
18ms
26 days ago
Leap Years
stellartux
70
10ms
26 days ago
Pascal’s Triangle
stellartux
133
10ms
27 days ago
Fibonacci
stellartux
51
11ms
27 days ago
𝑒
Steffan153
🥇
50
29ms
30 Aug 2026
ln 2
Steffan153
🥇
53
352ms
30 Aug 2026
Reverse Polish Notation
stellartux
206
18ms
27 Aug 2026
π
Steffan153
57
830ms
27 Aug 2026
Collatz
stellartux
113
20ms
27 Aug 2026
√2
Steffan153
52
2,345ms
27 Aug 2026
φ
Steffan153
🥇
50
2,399ms
27 Aug 2026
Catalan’s Constant
Steffan153
🥉
65
51ms
27 Aug 2026
Thue–Morse Constant
JOrE20
1,014
9ms
27 Aug 2026
Leap Years
Mikey-Beep
74
10ms
27 Aug 2026
Topological Sort
stellartux
🥉
175
26ms
26 Aug 2026
Morse Decoder
stellartux
1,242
16ms
26 Aug 2026
Morse Encoder
stellartux
1,242
17ms
26 Aug 2026
ROT13
stellartux
192
70ms
26 Aug 2026
Thue–Morse Constant
IanUtley
70
736ms
25 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,014
10ms
24 Aug 2026
Tutorial
quasar098
179
27ms
20 Aug 2026
Emojify
scpchicken
653
15ms
20 Aug 2026
DFA Simulator
scpchicken
1,426
34ms
20 Aug 2026
Day of Week
scpchicken
1,152
19ms
20 Aug 2026
CSS Colors
scpchicken
4,824
15ms
20 Aug 2026
Continued Fractions
scpchicken
810
16ms
20 Aug 2026
Card Number Validation
scpchicken
700
11ms
16 Aug 2026
Calendar
scpchicken
🥉
1,248
11ms
16 Aug 2026
brainfuck
scpchicken
2,041
33ms
16 Aug 2026
Billiards
scpchicken
🥉
862
18ms
16 Aug 2026
Arrows
scpchicken
1,035
14ms
16 Aug 2026
Arabic to Roman
scpchicken
1,167
23ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,961
10ms
16 Aug 2026
Evil Numbers
scpchicken
81
10ms
16 Aug 2026
Farey Sequence
scpchicken
4,365
11ms
16 Aug 2026
Factorial Factorisation
scpchicken
873
11ms
16 Aug 2026
Emirp Numbers (Long)
scpchicken
1,167
10ms
16 Aug 2026
Emirp Numbers
scpchicken
147
10ms
16 Aug 2026
Diamonds
scpchicken
1,114
9ms
16 Aug 2026
Christmas Trees
scpchicken
556
10ms
16 Aug 2026
Cubes
scpchicken
4,112
9ms
16 Aug 2026
Alphabetic Numbers
scpchicken
🥉
3,906
9ms
16 Aug 2026
Gijswijt’s Sequence
scpchicken
2,011
11ms
16 Aug 2026
Catalan’s Constant
scpchicken
1,014
10ms
16 Aug 2026
Catalan Numbers
scpchicken
2,883
10ms
16 Aug 2026
Ascending Primes
scpchicken
523
9ms
16 Aug 2026
Arithmetic Numbers
scpchicken
37,653
13ms
16 Aug 2026
Abundant Numbers (Long)
scpchicken
4,409
11ms
16 Aug 2026
Abundant Numbers
scpchicken
808
9ms
16 Aug 2026
99 Bottles of Beer
scpchicken
16,072
12ms
16 Aug 2026
24 Game
scpchicken
31,501
19ms
16 Aug 2026
12 Days of Christmas
scpchicken
1,009
11ms
15 Aug 2026
Connect Four
scpchicken
🥈
1,303
34ms
11 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,022
10ms
8 Aug 2026
Ulam Sequence
dokutan
🥉
1,019
20ms
31 Jul 2026
Ulam Sequence
IanUtley
🥈
123
3,809ms
31 Jul 2026
Ulam Sequence
Steffan153
💎
78
103ms
28 Jul 2026
Nim
IanUtley
🥇
119
19ms
13 Jul 2026
π
vhoulbreque
1,017
9ms
5 Jul 2026
Prime Numbers (Long)
DialFrost
71
432ms
4 Jul 2026
Alphabetic Numbers
retrohun
🥉
3,906
9ms
3 Jul 2026
Nim
Steffan153
🥇
119
22ms
2 Jul 2026
Tower of Hanoi
Andrey2001
3,591
10ms
29 Jun 2026
γ
retrohun
1,014
10ms
23 Jun 2026
Ten-pin Bowling
JOrE20
2,752
19ms
21 Jun 2026
Partition Numbers
GolfingSuccess
🥉
76
37ms
9 Jun 2026
Lucky Tickets
GolfingSuccess
109
21ms
7 Jun 2026
Connect Four
IanUtley
💎
332
184ms
3 Jun 2026
Catalan Numbers
GolfingSuccess
🥉
50
11ms
1 Jun 2026
ln 2
retrohun
1,014
10ms
31 May 2026
γ
Haksell
1,014
10ms
31 May 2026
Calendar
annaproxy
💎
297
27ms
28 May 2026
Gray Code Encoder
annaproxy
69
18ms
28 May 2026
Multitap Input
IanUtley
💎
114
18ms
25 May 2026
Multitap Input
annaproxy
🥈
137
16ms
24 May 2026
Leap Years
scpchicken
70
10ms
23 May 2026
Alphabetic Numbers
CaedenHarper
🥉
3,906
10ms
21 May 2026
Taxicab Numbers
oaiqjuy
🥈
236
40ms
19 May 2026
Leap Years
Steffan153
🥇
52
10ms
18 May 2026
π
hiichbindermax
296
19ms
18 May 2026
Fizz Buzz
hiichbindermax
133
10ms
18 May 2026
Collatz
scpchicken
95
113ms
17 May 2026
Pascal’s Triangle
LSWdigital
102
16ms
13 May 2026
Ulam Sequence
HumanoidCPU
1,104
10ms
12 May 2026
Alphabetic Numbers
KatieLG
4,909
9ms
12 May 2026
Alphabetic Numbers
dokutan
🥈
3,150
23ms
12 May 2026
Ulam Sequence
Shanethegamer
1,104
9ms
11 May 2026
Fibonacci
Herbert00709
160
9ms
8 May 2026
Kaprekar Numbers
IanUtley
💎
102
4,796ms
8 May 2026
Taxicab Numbers
dokutan
🥉
4,171
10ms
8 May 2026
Leap Years
Lydxn
🥇
52
10ms
7 May 2026
Fibonacci
Matter1024
62
10ms
4 May 2026
Fractions
Mikey-Beep
165
15ms
3 May 2026