The
Snake
hole will go live in approximately
38 hours
. Why not try and solve it ahead of time?
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ALGOL 68
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VimL
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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
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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
Bytes
Time
Submitted
CSS Colors (Inverse)
ethanlally
1,181
509ms
29 Aug 2026
CSS Colors (Inverse)
kg583
84
539ms
14 Aug 2026
CSS Colors (Inverse)
scpchicken
29
262ms
25 Jul 2026
CSS Colors (Inverse)
egol1
3,423
59ms
23 Jun 2026
CSS Colors (Inverse)
GolfingSuccess
115
162ms
19 Jun 2026
CSS Colors (Inverse)
madex
3,363
2ms
17 Jun 2026
CSS Colors (Inverse)
GolfingSuccess
104
17ms
13 Jun 2026
CSS Colors (Inverse)
kasarino
3,620
71ms
25 May 2026
CSS Colors (Inverse)
codereport
1,828
5ms
20 May 2026
CSS Colors (Inverse)
codereport
2,991
60ms
12 May 2026
CSS Colors (Inverse)
roupiq
1,774
18ms
11 May 2026
CSS Colors (Inverse)
rkg-huwdu
1,630
66ms
9 May 2026
CSS Colors (Inverse)
rkg-huwdu
2,164
5ms
9 May 2026
CSS Colors (Inverse)
KatieLG
9,850
1,710ms
15 Apr 2026
CSS Colors (Inverse)
Matter1024
2,563
2ms
25 Mar 2026
CSS Colors (Inverse)
madex
2,436
13ms
19 Mar 2026
CSS Colors (Inverse)
fantaize
2,336
208ms
10 Mar 2026
CSS Colors (Inverse)
JOrE20
1,681
8ms
20 Feb 2026
CSS Colors (Inverse)
elgan65536
3,262
274ms
13 Feb 2026
CSS Colors (Inverse)
plcc0
1,176
24ms
31 Jan 2026
CSS Colors (Inverse)
Sciman101
2,924
2ms
17 Jan 2026
CSS Colors (Inverse)
arcpolaris
341
473ms
13 Jan 2026
CSS Colors (Inverse)
HumanoidCPU
1,675
8ms
12 Jan 2026
CSS Colors (Inverse)
KatieLG
2,805
6ms
11 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,671
757ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,426
52ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,473
18ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,560
387ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,515
274ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,484
11ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,752
658ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,519
364ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,530
139ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,417
1,884ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,617
551ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,473
4,158ms
9 Jan 2026
CSS Colors (Inverse)
KatieLG-Transpiler
3,427
3ms
9 Jan 2026
CSS Colors (Inverse)
prestosilver
2,741
2ms
2 Jan 2026
CSS Colors (Inverse)
CommandLeo
2,554
14ms
29 Dec 2025
CSS Colors (Inverse)
TheZwierzLF
2,093
3,374ms
14 Dec 2025
CSS Colors (Inverse)
TheZwierzLF
2,094
18ms
11 Dec 2025
CSS Colors (Inverse)
AdrienHache
155
535ms
10 Dec 2025
CSS Colors (Inverse)
KatieLG
3,159
5ms
21 Nov 2025
CSS Colors (Inverse)
Shanethegamer
2,774
5ms
4 Nov 2025
CSS Colors (Inverse)
bitsandbeyond
27
225ms
23 Oct 2025
CSS Colors (Inverse)
Shanethegamer
3,108
132ms
21 Oct 2025
CSS Colors (Inverse)
mathieurodic
2,345
88ms
21 Oct 2025
CSS Colors (Inverse)
aiwana
2,082
18ms
18 Oct 2025
CSS Colors (Inverse)
jacekwladzinski
2,587
11ms
8 Oct 2025
CSS Colors (Inverse)
KatieLG
5,867
10ms
30 Sep 2025
CSS Colors (Inverse)
hallvabo
1,782
17ms
2 Sep 2025
CSS Colors (Inverse)
Emutis
1,822
14ms
2 Sep 2025
CSS Colors (Inverse)
blaztoma
3,280
87ms
2 Sep 2025
CSS Colors (Inverse)
blaztoma
3,142
13ms
2 Sep 2025
CSS Colors (Inverse)
Shanethegamer
3,120
44ms
4 Jul 2025
CSS Colors (Inverse)
Shanethegamer
3,044
184ms
2 Jul 2025
CSS Colors (Inverse)
Shanethegamer
3,227
3ms
2 Jul 2025
CSS Colors (Inverse)
voytxt
1,667
8ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
3,080
400ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
3,113
1,564ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
2,870
90ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
2,869
194ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
2,861
7ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
2,687
8ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
2,674
5ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
2,961
189ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
3,098
515ms
1 Jul 2025
CSS Colors (Inverse)
Shanethegamer
2,872
14ms
1 Jul 2025
CSS Colors (Inverse)
HumanoidCPU
2,963
2,863ms
26 Jun 2025
CSS Colors (Inverse)
HumanoidCPU
2,963
13ms
26 Jun 2025
CSS Colors (Inverse)
thadeucity
5,833
8ms
26 May 2025
CSS Colors (Inverse)
ffelixm
3,094
14ms
22 May 2025
CSS Colors (Inverse)
tatzyr
1,603
54ms
18 May 2025
CSS Colors (Inverse)
Natanaelel
1,429
41ms
17 May 2025