The
Snake
hole will go live in approximately
36 hours
. Why not try and solve it ahead of time?
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brainfuck
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Factorial Factorisation
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Fizz Buzz
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Fractions
Game of Life
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Gray Code Decoder
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ln 2
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Nim
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Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
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Pernicious Numbers (Long)
Poker
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Proximity Grid
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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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Star Wars GPT
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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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Snake
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Thue–Morse Constant
Turtle
Tutorial
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brainfuck
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D
Dart
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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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sed
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Tcl
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V
VimL
Wren
Zig
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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
Snake
madex
314
66ms
38 hours ago
Pernicious Numbers
snoozingnewt
43
13ms
2 days ago
Pangram Grep
christos-cantina-security
239
17ms
13 days ago
Thue–Morse Constant
HumanoidCPU
1,012
14ms
24 Aug 2026
Tutorial
quasar098
171
16ms
20 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,020
12ms
8 Aug 2026
Ulam Sequence
madex
98
109ms
31 Jul 2026
Fibonacci
Matter1024
48
13ms
3 Jun 2026
Ulam Sequence
HumanoidCPU
1,102
14ms
12 May 2026
Ulam Sequence
Shanethegamer
1,102
13ms
11 May 2026
Tower of Hanoi
bitsandbeyond
64
14ms
25 Apr 2026
Tower of Hanoi
scpchicken
67
16ms
25 Apr 2026
Dragon Curve
HumanoidCPU
10,282
13ms
23 Apr 2026
Dragon Curve
Shanethegamer
10,282
15ms
23 Apr 2026
Alphabetic Numbers
Shanethegamer
3,904
14ms
19 Apr 2026
Pangram Grep
madex
140
20ms
14 Mar 2026
Fizz Buzz
madex
107
15ms
14 Mar 2026
Alphabetic Numbers
HumanoidCPU
3,904
15ms
6 Mar 2026
Tutorial
FortuiteMan
171
19ms
3 Feb 2026
π
Andrey2001
1,012
13ms
25 Jan 2026
Tutorial
Mefred
171
19ms
15 Jan 2026
𝑒
JOrE20
1,012
15ms
5 Jan 2026
Tutorial
HumanoidCPU
45
19ms
1 Jan 2026
Tower of Hanoi
KatieLG
4,096
14ms
30 Nov 2025
Taxicab Numbers
snoozingnewt
4,169
12ms
29 Nov 2025
𝑒
BREMAUCY
1,012
13ms
27 Nov 2025
Taxicab Numbers
HumanoidCPU
4,169
13ms
27 Nov 2025
Taxicab Numbers
Shanethegamer
4,169
13ms
26 Nov 2025
Collatz
kmathis22
92
40ms
13 Nov 2025
Kolakoski Sequence
HumanoidCPU
2,009
13ms
12 Nov 2025
Tower of Hanoi
HumanoidCPU
3,586
13ms
6 Nov 2025
Tower of Hanoi
Shanethegamer
3,586
14ms
30 Oct 2025
Tutorial
Babafaba
106
17ms
15 Oct 2025
Tutorial
retrohun
171
18ms
19 Sep 2025
Tutorial
snoozingnewt
45
17ms
15 Sep 2025
Tutorial
Vexxter9
171
18ms
21 Aug 2025
Hilbert Curve
HumanoidCPU
2,057
14ms
18 Aug 2025
Abundant Numbers (Long)
HumanoidCPU
973
14ms
18 Aug 2025
Polyominoes
HumanoidCPU
3,573
14ms
18 Aug 2025
Recamán
HumanoidCPU
906
14ms
18 Aug 2025
Rule 110
HumanoidCPU
10,109
15ms
18 Aug 2025
Pascal’s Triangle
HumanoidCPU
778
14ms
18 Aug 2025
Kaprekar Numbers
HumanoidCPU
449
14ms
18 Aug 2025
Happy Numbers
HumanoidCPU
116
14ms
18 Aug 2025
Happy Numbers (Long)
HumanoidCPU
561
14ms
18 Aug 2025
Emirp Numbers (Long)
HumanoidCPU
1,165
15ms
18 Aug 2025
Catalan Numbers
HumanoidCPU
2,881
13ms
18 Aug 2025
Tongue-twisters
HumanoidCPU
532
15ms
18 Aug 2025
Van Eck Sequence
HumanoidCPU
2,564
13ms
17 Aug 2025
Abundant Numbers
HumanoidCPU
172
14ms
16 Aug 2025
Look and Say
HumanoidCPU
1,288
14ms
15 Aug 2025
Leyland Numbers
HumanoidCPU
895
15ms
15 Aug 2025
Farey Sequence
HumanoidCPU
4,363
14ms
15 Aug 2025
Diamonds
HumanoidCPU
1,112
15ms
14 Aug 2025
Niven Numbers
HumanoidCPU
100
15ms
14 Aug 2025
Lucky Numbers
HumanoidCPU
4,829
15ms
14 Aug 2025
Inventory Sequence
HumanoidCPU
2,632
14ms
14 Aug 2025
Gijswijt’s Sequence
HumanoidCPU
2,009
15ms
14 Aug 2025
Smith Numbers
HumanoidCPU
1,833
13ms
14 Aug 2025
Vampire Numbers
HumanoidCPU
1,080
14ms
14 Aug 2025
Arithmetic Numbers
HumanoidCPU
37,651
15ms
14 Aug 2025
Odious Numbers (Long)
HumanoidCPU
1,954
14ms
14 Aug 2025
Evil Numbers (Long)
HumanoidCPU
1,959
14ms
14 Aug 2025
N Queens
HumanoidCPU
1,255
14ms
14 Aug 2025
Pernicious Numbers (Long)
HumanoidCPU
20,671
14ms
14 Aug 2025
Divisors
HumanoidCPU
1,175
14ms
14 Aug 2025
Foo Fizz Buzz Bar
HumanoidCPU
5,728
15ms
14 Aug 2025
Prime Numbers (Long)
HumanoidCPU
5,957
15ms
14 Aug 2025
Niven Numbers (Long)
HumanoidCPU
7,447
14ms
14 Aug 2025
Odious Numbers
HumanoidCPU
82
15ms
11 Aug 2025
Evil Numbers
HumanoidCPU
79
15ms
10 Aug 2025
Trinomial Triangle
HumanoidCPU
2,076
13ms
6 Aug 2025
Rijndael S-box
HumanoidCPU
777
15ms
4 Aug 2025
Prime Numbers
HumanoidCPU
80
14ms
2 Aug 2025
Collatz
HumanoidCPU
3,235
15ms
2 Aug 2025
Sierpiński Triangle
HumanoidCPU
401
13ms
2 Aug 2025
Sphenic Numbers
HumanoidCPU
8,869
14ms
29 Jul 2025
π
Ralac07
1,012
13ms
28 Jul 2025
Semiprime Numbers
HumanoidCPU
12,798
13ms
28 Jul 2025
Tutorial
Bpc-CPU
171
18ms
12 Jul 2025
Fibonacci
HumanoidCPU
143
12ms
1 Jul 2025
Mandelbrot
HumanoidCPU
3,371
13ms
30 Jun 2025
Number Spiral
HumanoidCPU
309
12ms
27 Jun 2025
Fizz Buzz
HumanoidCPU
521
14ms
20 Jun 2025
Ascending Primes
HumanoidCPU
521
15ms
13 Jun 2025
Polyominoes
Shanethegamer
3,573
14ms
9 Jun 2025
Christmas Trees
HumanoidCPU
554
13ms
5 Jun 2025
Pernicious Numbers
HumanoidCPU
109
13ms
5 Jun 2025
Leap Years
HumanoidCPU
739
14ms
5 Jun 2025
Catalan’s Constant
HumanoidCPU
1,012
14ms
5 Jun 2025
Kolakoski Constant
HumanoidCPU
1,012
13ms
5 Jun 2025
λ
HumanoidCPU
1,012
13ms
5 Jun 2025
τ
HumanoidCPU
1,012
15ms
5 Jun 2025
π
HumanoidCPU
1,012
13ms
5 Jun 2025
φ
HumanoidCPU
1,012
14ms
5 Jun 2025
γ
HumanoidCPU
1,012
14ms
5 Jun 2025
ln 2
HumanoidCPU
1,012
14ms
5 Jun 2025
𝑒
HumanoidCPU
1,012
14ms
5 Jun 2025
√2
HumanoidCPU
1,012
13ms
5 Jun 2025
Polygon Triangulations
Shanethegamer
4,321
14ms
3 Jun 2025