The
Snake
hole will go live in approximately
4 days
. Why not try and solve it ahead of time?
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Nim
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Number Spiral
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Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
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Partition Numbers
Pascal’s Triangle
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Pernicious Numbers (Long)
Poker
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Proximity Grid
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Quine
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Rule 110
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Set
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Time Distance
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United States
Vampire Numbers
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γ
λ
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φ
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𝑒
Apéry’s Constant
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Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
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Highly Composite Numbers
Huffman Encoder
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p-adic Expansion
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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
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Gray Code Encoder
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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
Ordinal Numbers
snoozingnewt
410
46ms
9 mins ago
Leap Years
albanian-laundromat
64
40ms
44 hours ago
Tower of Hanoi
albanian-laundromat
🥉
76
41ms
4 days ago
Calendar
albanian-laundromat
💎
382
47ms
4 days ago
Fibonacci
albanian-laundromat
🥇
44
43ms
5 days ago
Fibonacci
bpharaldsson
65
42ms
8 days ago
Tutorial
zzh1996
102
46ms
9 days ago
Pernicious Numbers
albanian-laundromat
52
43ms
10 days ago
Minesweeper
christos-cantina-security
465
59ms
11 days ago
Tower of Hanoi
christos-cantina-security
100
43ms
11 days ago
ISBN
christos-cantina-security
343
45ms
11 days ago
Fibonacci
christos-cantina-security
76
45ms
11 days ago
Ulam Sequence
albanian-laundromat
💎
127
46ms
13 days ago
Divisors
albanian-laundromat
69
43ms
14 days ago
Abundant Numbers (Long)
albanian-laundromat
75
45ms
15 days ago
Fibonacci
GolfingSuccess
46
41ms
15 days ago
Chess Move Validation
albanian-laundromat
🦄
253
44ms
25 days ago
Musical Chords
albanian-laundromat
💎
222
45ms
26 days ago
Thue–Morse Constant
HumanoidCPU
1,019
41ms
24 Aug 2026
Tutorial
quasar098
285
44ms
20 Aug 2026
Minesweeper
bitsandbeyond
264
52ms
20 Aug 2026
Emojify
scpchicken
1,204
49ms
20 Aug 2026
DFA Simulator
scpchicken
1,545
50ms
20 Aug 2026
Day of Week
scpchicken
1,780
47ms
20 Aug 2026
CSS Colors
scpchicken
4,391
48ms
20 Aug 2026
Continued Fractions
scpchicken
1,303
49ms
20 Aug 2026
Connect Four
scpchicken
🥈
952
45ms
20 Aug 2026
Seven Segment
bitsandbeyond
🥈
165
42ms
18 Aug 2026
Hexagonal Spiral
bitsandbeyond
262
44ms
18 Aug 2026
Card Number Validation
scpchicken
1,048
48ms
16 Aug 2026
brainfuck
scpchicken
1,807
48ms
16 Aug 2026
Billiards
scpchicken
1,371
45ms
16 Aug 2026
Arrows
scpchicken
959
48ms
16 Aug 2026
Arabic to Roman
scpchicken
1,113
51ms
16 Aug 2026
Foo Fizz Buzz Bar
scpchicken
5,805
42ms
16 Aug 2026
Evil Numbers (Long)
scpchicken
2,036
43ms
16 Aug 2026
Evil Numbers
scpchicken
152
43ms
16 Aug 2026
Farey Sequence
scpchicken
4,440
44ms
16 Aug 2026
Factorial Factorisation
scpchicken
946
43ms
16 Aug 2026
Emirp Numbers (Long)
scpchicken
1,242
42ms
16 Aug 2026
Emirp Numbers
scpchicken
220
43ms
16 Aug 2026
Divisors
scpchicken
1,252
43ms
16 Aug 2026
Diamonds
scpchicken
1,189
43ms
16 Aug 2026
Collatz
scpchicken
3,312
43ms
16 Aug 2026
Christmas Trees
scpchicken
629
43ms
16 Aug 2026
Cubes
scpchicken
4,187
44ms
16 Aug 2026
Gijswijt’s Sequence
scpchicken
2,086
43ms
16 Aug 2026
Catalan’s Constant
scpchicken
1,089
43ms
16 Aug 2026
Catalan Numbers
scpchicken
2,958
42ms
16 Aug 2026
ASCII Table
scpchicken
357
41ms
16 Aug 2026
Ascending Primes
scpchicken
596
43ms
16 Aug 2026
Arithmetic Numbers
scpchicken
37,758
44ms
16 Aug 2026
Abundant Numbers (Long)
scpchicken
4,657
74ms
16 Aug 2026
Abundant Numbers
scpchicken
856
50ms
16 Aug 2026
99 Bottles of Beer
scpchicken
16,373
89ms
16 Aug 2026
24 Game
scpchicken
32,865
266ms
16 Aug 2026
12 Days of Christmas
scpchicken
1,063
43ms
15 Aug 2026
Billiards
albanian-laundromat
🥉
208
46ms
12 Aug 2026
Yellowstone Permutation
HumanoidCPU
16,014
202ms
9 Aug 2026
Alphabetic Numbers
scpchicken
💎
350
46ms
4 Aug 2026
Ulam Sequence
madex
🥈
128
42ms
31 Jul 2026
Ulam Sequence
dokutan
🥉
1,564
41ms
31 Jul 2026
ISBN
albanian-laundromat
🥇
143
42ms
29 Jul 2026
ISBN
JOrE20
797
45ms
28 Jul 2026
ISBN
rcemu
211
42ms
26 Jul 2026
DFA Simulator
albanian-laundromat
🥉
269
47ms
22 Jul 2026
Calendar
scpchicken
🥈
440
46ms
20 Jul 2026
Zodiac Signs
albanian-laundromat
🥉
185
44ms
19 Jul 2026
Connect Four
jesterjunk
💎
317
49ms
11 Jul 2026
Tutorial
JOrE20
102
42ms
10 Jul 2026
Nim
albanian-laundromat
🦄
160
43ms
10 Jul 2026
π
vhoulbreque
1,060
40ms
5 Jul 2026
Alphabetic Numbers
CaedenHarper
16,911
182ms
5 Jul 2026
Leap Years
denkyuu1
102
42ms
29 Jun 2026
Tower of Hanoi
Andrey2001
11,245
108ms
29 Jun 2026
Day of Week
marshallward
🥇
206
44ms
24 Jun 2026
γ
retrohun
1,019
40ms
23 Jun 2026
Tongue-twisters
Mukundan314
💎
348
42ms
19 Jun 2026
ISBN
egol1
848
46ms
17 Jun 2026
Day of Week
MeWhenI
🥉
207
45ms
17 Jun 2026
Day of Week
primo-ppcg
🥇
206
53ms
16 Jun 2026
Continued Fractions
primo-ppcg
💎
190
44ms
13 Jun 2026
Tutorial
LaconicLuna
285
55ms
9 Jun 2026
ln 2
retrohun
1,019
44ms
31 May 2026
γ
Haksell
1,019
42ms
31 May 2026
Leap Years
RealBen9
69
44ms
30 May 2026
ASCII Table
Verlio-H
127
47ms
23 May 2026
Leap Years
Steffan153
🥇
41
44ms
18 May 2026
Topological Sort
snoozingnewt
🥈
229
56ms
15 May 2026
Topological Sort
SirBogman
💎
220
54ms
15 May 2026
Fibonacci
scpchicken
49
42ms
14 May 2026
Ulam Sequence
HumanoidCPU
4,096
75ms
12 May 2026
Tower of Hanoi
scpchicken
91
42ms
12 May 2026
Alphabetic Numbers
LostSyntax21
🥈
1,000
50ms
12 May 2026
Alphabetic Numbers
KatieLG
🥉
3,987
76ms
12 May 2026
Alphabetic Numbers
dokutan
5,300
44ms
12 May 2026
Divisors
Lydxn
🥇
56
43ms
11 May 2026
Continued Fractions
albanian-laundromat
🥈
191
45ms
7 May 2026
Leap Years
Lydxn
🥇
41
42ms
7 May 2026
ISBN
HumanoidCPU
301
51ms
3 May 2026