The
Snake
hole will go live in approximately
2 days
. Why not try and solve it ahead of time?
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12 Days of Christmas
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Abundant Numbers
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Arabic to Roman
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Arrows
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Billiards
brainfuck
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Card Number Validation
Catalan Numbers
Catalan’s Constant
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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
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Fractions
Game of Life
Gijswijt’s Sequence
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Gray Code Encoder
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Intersection
Inventory Sequence
ISBN
Jacobi Symbol
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Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
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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
Evil Numbers (Long)
JOrE20
63
338ms
3 days ago
Evil Numbers (Long)
zzh1996
🥇
62
382ms
6 days ago
Evil Numbers (Long)
Nyfii
63
397ms
17 days ago
Evil Numbers (Long)
scpchicken
1,980
462ms
16 Aug 2026
Evil Numbers (Long)
ethanlally
68
478ms
19 Jun 2026
Evil Numbers (Long)
janbehrens
73
627ms
16 May 2026
Evil Numbers (Long)
madeforlosers
2,512
386ms
22 Apr 2026
Evil Numbers (Long)
Jonson26
103
433ms
14 Apr 2026
Evil Numbers (Long)
CaedenHarper
63
509ms
16 Mar 2026
Evil Numbers (Long)
dokutan
69
520ms
15 Feb 2026
Evil Numbers (Long)
Steffan153
🥇
62
489ms
11 Feb 2026
Evil Numbers (Long)
emgordon154
63
537ms
9 Feb 2026
Evil Numbers (Long)
GolfingSuccess
63
570ms
6 Feb 2026
Evil Numbers (Long)
Florian-Mt
113
514ms
10 Jan 2026
Evil Numbers (Long)
ravnskjaer
83
476ms
15 Dec 2025
Evil Numbers (Long)
Lydxn
🥇
62
458ms
12 Dec 2025
Evil Numbers (Long)
KasperKivimaeki
🥇
62
499ms
2 Dec 2025
Evil Numbers (Long)
KatieLG
1,690
467ms
30 Nov 2025
Evil Numbers (Long)
h3ra993huskp
74
428ms
30 Nov 2025
Evil Numbers (Long)
tigerdan2
81
539ms
30 Nov 2025
Evil Numbers (Long)
HumanoidCPU
76
482ms
8 Nov 2025
Evil Numbers (Long)
MeWhenI
64
537ms
7 Nov 2025
Evil Numbers (Long)
squid233
77
575ms
7 Nov 2025
Evil Numbers (Long)
Jacob385
72
520ms
28 Oct 2025
Evil Numbers (Long)
snoozingnewt
71
523ms
25 Oct 2025
Evil Numbers (Long)
kmathis22
73
441ms
23 Oct 2025
Evil Numbers (Long)
Schmitt-Very-Cool
74
542ms
7 Oct 2025
Evil Numbers (Long)
Zstr25
122
462ms
7 Oct 2025
Evil Numbers (Long)
stefangimmillaro
🥇
62
516ms
6 Oct 2025
Evil Numbers (Long)
Benzas01
111
502ms
5 Oct 2025
Evil Numbers (Long)
Yewzir
63
458ms
2 Oct 2025
Evil Numbers (Long)
namelessiw
🥇
62
471ms
2 Oct 2025
Evil Numbers (Long)
fuzzylojik-golf
🥇
62
504ms
26 Sep 2025
Evil Numbers (Long)
pardouin
63
461ms
26 Sep 2025
Evil Numbers (Long)
JayXon
🥇
62
464ms
26 Sep 2025
Evil Numbers (Long)
sean-niemann
🥇
62
485ms
26 Sep 2025
Evil Numbers (Long)
DialFrost
63
474ms
26 Sep 2025
Evil Numbers (Long)
Liibe
74
442ms
25 Sep 2025
Evil Numbers (Long)
nwellnhof
64
505ms
25 Sep 2025
Evil Numbers (Long)
Shanethegamer
74
463ms
25 Sep 2025
Evil Numbers (Long)
rucin93
68
433ms
24 Sep 2025
Evil Numbers (Long)
eMGeeneer
130
368ms
18 Sep 2025
Evil Numbers (Long)
KaLuAnFo
121
443ms
9 Aug 2025
Evil Numbers (Long)
Apataras
101
396ms
22 Jun 2025
Evil Numbers (Long)
noescareno
114
409ms
31 May 2025
Evil Numbers (Long)
0dyse
117
418ms
24 Apr 2025
Evil Numbers (Long)
yoshykai
111
391ms
29 Mar 2025
Evil Numbers (Long)
kevinnaviapaiva
156
395ms
26 Feb 2025
Evil Numbers (Long)
Mabeloid
2,522
393ms
17 Sep 2024
Evil Numbers (Long)
Maximizer02
111
444ms
30 Jul 2024
Evil Numbers (Long)
luca1339
117
389ms
10 Jun 2024
Evil Numbers (Long)
schaene
153
439ms
7 Mar 2024
Evil Numbers (Long)
Kaffeleif
114
396ms
29 Jan 2024
Evil Numbers (Long)
theComic8r
114
394ms
4 Dec 2023
Evil Numbers (Long)
imma-Spring
116
425ms
28 Nov 2023
Evil Numbers (Long)
bac0id
114
389ms
26 Sep 2023
Evil Numbers (Long)
jonah1068
155
426ms
15 Sep 2023
Evil Numbers (Long)
cbrt-x
110
396ms
14 Sep 2023
Evil Numbers (Long)
crizin
115
393ms
9 Sep 2023
Evil Numbers (Long)
msbranicky
114
390ms
7 Sep 2023
Evil Numbers (Long)
aresok
131
398ms
2 Jul 2023
Evil Numbers (Long)
Leftykap
135
494ms
21 May 2023
Evil Numbers (Long)
OriEy
134
432ms
27 Apr 2023
Evil Numbers (Long)
Betuaredead
114
408ms
4 Jan 2023
Evil Numbers (Long)
retrohun
2,522
395ms
27 Dec 2022
Evil Numbers (Long)
OleBrumm
201
439ms
30 Nov 2022
Evil Numbers (Long)
bidger
194
404ms
18 Oct 2022
Evil Numbers (Long)
cnelson20
150
410ms
11 Oct 2022
Evil Numbers (Long)
bwat2
114
411ms
30 Sep 2022
Evil Numbers (Long)
FlorianCassayre
129
419ms
28 Sep 2022
Evil Numbers (Long)
KatieLG-Transpiler
2,048
397ms
10 Sep 2022
Evil Numbers (Long)
inventshah
101
465ms
6 Sep 2022