The
Snake
hole will go live in approximately
37 hours
. Why not try and solve it ahead of time?
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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
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Gray Code Encoder
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Happy Numbers (Long)
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Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
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Kolakoski Sequence
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
Chars
Time
Submitted
Evil Numbers (Long)
JOrE20
62
339ms
91 mins ago
Evil Numbers (Long)
Steffan153
43
91ms
17 hours ago
Evil Numbers (Long)
emgordon154
82
265ms
38 hours ago
Evil Numbers (Long)
NicolaiKuertoes
47
17ms
44 hours ago
Evil Numbers (Long)
snoozingnewt
🥇
39
67ms
2 days ago
Evil Numbers (Long)
snoozingnewt
🥇
47
91ms
2 days ago
Evil Numbers (Long)
Edjyzod
47
17ms
2 days ago
Evil Numbers (Long)
dpamar
46
9ms
5 days ago
Evil Numbers (Long)
Europe2048
22
12ms
6 days ago
Evil Numbers (Long)
Europe2048
8
189ms
6 days ago
Evil Numbers (Long)
starxingchenc
75
2ms
6 days ago
Evil Numbers (Long)
Skyfjord
🥇
41
10ms
6 days ago
Evil Numbers (Long)
zzh1996
62
382ms
7 days ago
Evil Numbers (Long)
JOrE20
25
3ms
7 days ago
Evil Numbers (Long)
vlpx
🥇
39
7ms
7 days ago
Evil Numbers (Long)
albanian-laundromat
86
143ms
8 days ago
Evil Numbers (Long)
solisolu
42
39ms
11 days ago
Evil Numbers (Long)
ovs-code
🥇
39
73ms
12 days ago
Evil Numbers (Long)
Setvizan
51
8ms
12 days ago
Evil Numbers (Long)
Yax42
46
8ms
12 days ago
Evil Numbers (Long)
HumanoidCPU
96
2ms
13 days ago
Evil Numbers (Long)
JOrE20
47
3ms
13 days ago
Evil Numbers (Long)
zzh1996
45
2ms
14 days ago
Evil Numbers (Long)
zzh1996
74
498ms
14 days ago
Evil Numbers (Long)
christos-cantina-security
10
22ms
14 days ago
Evil Numbers (Long)
KatieLG
1,963
33ms
15 days ago
Evil Numbers (Long)
emgordon154
9
199ms
15 days ago
Evil Numbers (Long)
HumanoidCPU
75
411ms
16 days ago
Evil Numbers (Long)
albanian-laundromat
🥇
65
30ms
18 days ago
Evil Numbers (Long)
Nyfii
63
397ms
18 days ago
Evil Numbers (Long)
ihsan-gpt
🥇
41
11ms
18 days ago
Evil Numbers (Long)
jordansafer
47
17ms
18 days ago
Evil Numbers (Long)
Nyfii
42
11ms
19 days ago
Evil Numbers (Long)
HumanoidCPU
4,454
34ms
19 days ago
Evil Numbers (Long)
ovs-code
🥇
31
372ms
22 days ago
Evil Numbers (Long)
kkoenig
🥇
81
278ms
23 days ago
Evil Numbers (Long)
isaiah0311
84
2ms
25 days ago
Evil Numbers (Long)
levigutt
48
4ms
25 days ago
Evil Numbers (Long)
HumanoidCPU
5,568
3ms
25 days ago
Evil Numbers (Long)
VIBaJ-16
69
136ms
25 days ago
Evil Numbers (Long)
emgordon154
🥇
82
56ms
26 days ago
Evil Numbers (Long)
ZorblaxV
60
10ms
26 days ago
Evil Numbers (Long)
namelessiw
8
213ms
26 days ago
Evil Numbers (Long)
stellartux
51
15ms
27 days ago
Evil Numbers (Long)
stellartux
72
2ms
27 days ago
Evil Numbers (Long)
stellartux
84
3ms
27 days ago
Evil Numbers (Long)
nmpzt
94
2ms
27 days ago
Evil Numbers (Long)
o0lit3
🥇
41
11ms
30 Aug 2026
Evil Numbers (Long)
JOrE20
50
67ms
27 Aug 2026
Evil Numbers (Long)
GolfingSuccess
56
12ms
27 Aug 2026
Evil Numbers (Long)
egu555
48
7ms
24 Aug 2026
Evil Numbers (Long)
egu555
42
18ms
24 Aug 2026
Evil Numbers (Long)
egu555
45
3ms
24 Aug 2026
Evil Numbers (Long)
Natanaelel
59
1,267ms
23 Aug 2026
Evil Numbers (Long)
juliansiebert
164
15ms
23 Aug 2026
Evil Numbers (Long)
LostSyntax21
5,568
3ms
21 Aug 2026
Evil Numbers (Long)
primo-ppcg
🥈
41
58ms
21 Aug 2026
Evil Numbers (Long)
quasar098
56
10ms
21 Aug 2026
Evil Numbers (Long)
kg583
55
5ms
20 Aug 2026
Evil Numbers (Long)
jenova-gemini
42
11ms
18 Aug 2026
Evil Numbers (Long)
JOrE20
75
49ms
18 Aug 2026
Evil Numbers (Long)
HumanoidCPU
114
90ms
18 Aug 2026
Evil Numbers (Long)
HumanoidCPU
1,010
73ms
17 Aug 2026
Evil Numbers (Long)
scpchicken
51
7ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,695
6ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
3,038
1,575ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,465
2ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,955
13ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,458
140ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,971
7ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,967
3ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,964
79ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,959
2ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,454
2ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,974
111ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
4,955
30ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,959
74ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,961
10ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,968
214ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,033
64ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,966
25ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,960
134ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,963
2ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,962
2,051ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,963
142ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,451
4ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,980
462ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,459
3ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,463
134ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,962
694ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,497
317ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,491
336ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,036
43ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
7,965
4ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,457
65ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
1,961
1,327ms
16 Aug 2026
Evil Numbers (Long)
Europe2048
16
3ms
15 Aug 2026
Evil Numbers (Long)
Lydxn
🥇
64
477ms
14 Aug 2026
Evil Numbers (Long)
bitsandbeyond
64
5ms
13 Aug 2026
Evil Numbers (Long)
michelebastione
66
414ms
13 Aug 2026