The
Snake
hole will go live in approximately
21 hours
. Why not try and solve it ahead of time?
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N Queens
Nim
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Number Spiral
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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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Rule 110
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Set
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Ten-pin Bowling
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Time Distance
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Topological Sort
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Transpose Sentence
Trinomial Triangle
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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
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Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
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Highly Composite Numbers
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Lyndon Factorization
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Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
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Tutorial
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ALGOL 68
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brainfuck
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C#
C++
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Coconut
Common Lisp
Crystal
D
Dart
Elixir
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F#
Factor
Forth
Fortran
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Go
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Groovy
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Hexagony
iogii
J
Janet
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jq
Julia
K
Kotlin
Lua
Nim
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Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
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
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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
Steffan153
108
802ms
8 hours ago
Snake
edsrzf
105
779ms
19 hours ago
Snake
albanian-laundromat
125
771ms
20 hours ago
φ
jipsong
39
711ms
30 hours ago
√2
jipsong
38
662ms
30 hours ago
Collatz
snoozingnewt
59
981ms
46 hours ago
Topological Sort
Steffan153
🥇
75
1,330ms
2 days ago
Polyominoes
edsrzf
🥇
89
1,169ms
3 days ago
Polyominoes
Steffan153
🥇
89
1,187ms
3 days ago
Topological Sort
edsrzf
🥇
75
1,289ms
3 days ago
Pascal’s Triangle
edsrzf
💎
52
754ms
4 days ago
Lucky Tickets
Steffan153
🥇
74
1,034ms
4 days ago
Smith Numbers
edsrzf
🥈
89
4,295ms
4 days ago
Arrows
Steffan153
🥇
74
1,034ms
4 days ago
Zeckendorf Representation
Steffan153
🥇
75
830ms
4 days ago
Arrows
edsrzf
🥇
74
1,051ms
4 days ago
Lucky Tickets
edsrzf
🥇
74
829ms
4 days ago
Zeckendorf Representation
edsrzf
🥇
75
842ms
4 days ago
Leap Years
albanian-laundromat
40
652ms
5 days ago
Foo Fizz Buzz Bar
edsrzf
🥇
76
811ms
5 days ago
Foo Fizz Buzz Bar
Steffan153
🥇
76
782ms
5 days ago
Billiards
Steffan153
🥇
87
868ms
5 days ago
Billiards
edsrzf
🥇
87
868ms
5 days ago
Alphabetic Numbers
edsrzf
🥇
86
786ms
5 days ago
Alphabetic Numbers
Steffan153
🥇
86
908ms
5 days ago
Fizz Buzz
albanian-laundromat
🥇
53
736ms
5 days ago
Foo Fizz Buzz Bar
albanian-laundromat
🥉
80
726ms
5 days ago
Smith Numbers
Steffan153
💎
88
1,093ms
5 days ago
Cubes
sean-niemann
🥈
115
797ms
5 days ago
Medal Tally
Steffan153
🥇
93
812ms
5 days ago
Arabic to Roman
Steffan153
🥇
91
1,107ms
5 days ago
Jacobi Symbol
Steffan153
🥇
93
892ms
5 days ago
Set
Steffan153
💎
91
1,054ms
6 days ago
Arabic to Roman
edsrzf
🥇
91
942ms
6 days ago
Levenshtein Distance
Steffan153
🥇
91
800ms
6 days ago
Emojify
Steffan153
🥇
79
915ms
6 days ago
Jacobi Symbol
edsrzf
🥇
93
816ms
6 days ago
Levenshtein Distance
edsrzf
🥇
91
825ms
6 days ago
Medal Tally
edsrzf
🥇
93
829ms
6 days ago
Scrambled Sort
edsrzf
💎
65
785ms
6 days ago
Emojify
edsrzf
🥇
79
855ms
6 days ago
Lucky Numbers
Steffan153
🥇
58
2,278ms
7 days ago
Lucky Numbers
edsrzf
🥇
58
1,512ms
7 days ago
Tower of Hanoi
albanian-laundromat
53
804ms
8 days ago
ASCII Table
jipsong
116
918ms
11 days ago
Fibonacci
jipsong
🥇
34
765ms
11 days ago
Game of Life
Steffan153
🥇
74
856ms
13 days ago
Pernicious Numbers
albanian-laundromat
🥇
32
757ms
14 days ago
Fibonacci
christos-cantina-security
41
804ms
14 days ago
12 Days of Christmas
Steffan153
345
798ms
15 days ago
Tutorial
HumanoidCPU
44
1,238ms
16 days ago
SI Units
edsrzf
💎
326
1,515ms
20 days ago
Partition Numbers
Steffan153
🥇
53
859ms
21 days ago
Partition Numbers
edsrzf
🥇
53
847ms
21 days ago
Look and Say
KasperKivimaeki
127
811ms
23 days ago
Chess Move Validation
edsrzf
🥇
82
1,505ms
25 days ago
Chess Move Validation
Steffan153
🥇
82
1,524ms
25 days ago
Look and Say
jipsong
🥇
66
1,262ms
25 days ago
Sudoku (Fill-in)
Steffan153
💎
113
2,069ms
26 days ago
Look and Say
AstroOrbis
149
1,183ms
26 days ago
Gray Code Encoder
HumanoidCPU
91
1,819ms
26 days ago
λ
edsrzf
🥇
115
2,363ms
27 days ago
λ
sean-niemann
🥇
115
2,966ms
27 days ago
Seven Segment
bitsandbeyond
106
734ms
1 Sep 2026
Look and Say
BREMAUCY
111
880ms
1 Sep 2026
Look and Say
tomh1012
142
871ms
1 Sep 2026
Look and Say
pardouin
67
1,065ms
1 Sep 2026
Tutorial
zzh1996
44
1,232ms
1 Sep 2026
Look and Say
error256
🥇
66
1,161ms
1 Sep 2026
Time Distance
Steffan153
💎
127
1,223ms
31 Aug 2026
Time Distance
sean-niemann
🥈
129
1,162ms
31 Aug 2026
Look and Say
msbranicky
170
895ms
31 Aug 2026
Look and Say
Matter1024
68
858ms
31 Aug 2026
Look and Say
aksyristos
311
961ms
31 Aug 2026
Jacobi Symbol
sean-niemann
🥉
94
1,180ms
31 Aug 2026
Look and Say
bitsandbeyond
67
867ms
31 Aug 2026
Look and Say
albanian-laundromat
70
790ms
31 Aug 2026
Chess Move Validation
dokutan
🥉
166
1,080ms
30 Aug 2026
Binary Lambda Calculus
bitsandbeyond
284
1,009ms
27 Aug 2026
Prime Numbers (Long)
Florian-Mt
59
4,803ms
26 Aug 2026
Prime Numbers
Florian-Mt
58
811ms
26 Aug 2026
brainfuck
edsrzf
🥇
100
1,727ms
26 Aug 2026
Reverse Polish Notation
edsrzf
🥇
75
1,440ms
26 Aug 2026
Niven Numbers
albanian-laundromat
🥇
40
732ms
26 Aug 2026
𝑒
Steffan153
🥇
42
3,263ms
25 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,009
807ms
24 Aug 2026
Set
edsrzf
🥉
95
1,200ms
24 Aug 2026
Number Spiral
edsrzf
🥈
82
851ms
24 Aug 2026
Morse Encoder
Steffan153
💎
103
1,071ms
23 Aug 2026
Morse Encoder
edsrzf
🥈
104
1,446ms
23 Aug 2026
Farey Sequence
edsrzf
65
857ms
23 Aug 2026
12 Days of Christmas
edsrzf
💎
200
832ms
21 Aug 2026
Tutorial
quasar098
135
1,257ms
20 Aug 2026
Repeating Decimals
edsrzf
🥇
76
1,464ms
20 Aug 2026
Repeating Decimals
Steffan153
🥇
76
1,721ms
20 Aug 2026
Taxicab Numbers
Steffan153
🥇
73
4,837ms
20 Aug 2026
Taxicab Numbers
sean-niemann
🥉
78
3,341ms
20 Aug 2026
Taxicab Numbers
edsrzf
🥇
73
4,675ms
20 Aug 2026
Catalan’s Constant
edsrzf
💎
61
1,114ms
20 Aug 2026
Emojify
scpchicken
484
1,632ms
20 Aug 2026