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hole will go live in approximately
29 hours
. 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
Calendar
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
Gray Code Decoder
Gray Code Encoder
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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)
solisolu
42
39ms
11 days ago
Evil Numbers (Long)
JOrE20
34
37ms
30 Jul 2026
Evil Numbers (Long)
retrohun
50
42ms
25 May 2026
Evil Numbers (Long)
aksyristos
44
42ms
24 May 2026
Evil Numbers (Long)
scpchicken
36
37ms
15 May 2026
Evil Numbers (Long)
HumanoidCPU
39
36ms
15 May 2026
Evil Numbers (Long)
denkyuu1
36
42ms
27 Apr 2026
Evil Numbers (Long)
madeforlosers
1,955
37ms
22 Apr 2026
Evil Numbers (Long)
blaztoma
33
37ms
11 Apr 2026
Evil Numbers (Long)
Steffan153
32
67ms
11 Feb 2026
Evil Numbers (Long)
Thinkr1
39
39ms
3 Feb 2026
Evil Numbers (Long)
TheZwierzLF
46
36ms
15 Dec 2025
Evil Numbers (Long)
Babafaba
44
38ms
15 Oct 2025
Evil Numbers (Long)
snoozingnewt
41
38ms
14 Sep 2025
Evil Numbers (Long)
mishak-sys
48
40ms
10 Sep 2025
Evil Numbers (Long)
fuzzylojik-golf
33
36ms
29 Aug 2025
Evil Numbers (Long)
CaedenHarper
34
39ms
28 Aug 2025
Evil Numbers (Long)
csharpython
35
44ms
5 Aug 2025
Evil Numbers (Long)
dokutan
36
39ms
17 Jul 2025
Evil Numbers (Long)
ejini6969
39
37ms
13 Jun 2025
Evil Numbers (Long)
pardouin
33
46ms
11 Apr 2025
Evil Numbers (Long)
sean-niemann
33
41ms
25 Mar 2025
Evil Numbers (Long)
tatzyr
40
43ms
8 Jan 2025
Evil Numbers (Long)
FlyingPenguin223
35
40ms
20 Oct 2024
Evil Numbers (Long)
emgordon154
33
43ms
21 Sep 2024
Evil Numbers (Long)
Mabeloid
1,955
37ms
17 Sep 2024
Evil Numbers (Long)
Ralac07
52
37ms
4 Jul 2024
Evil Numbers (Long)
aydamak
42
40ms
15 May 2024
Evil Numbers (Long)
xsot
33
39ms
9 Feb 2024
Evil Numbers (Long)
olleicua
39
40ms
9 Jan 2024
Evil Numbers (Long)
Yewzir
35
41ms
17 Nov 2023
Evil Numbers (Long)
Pluviolithic
46
55ms
18 Oct 2023
Evil Numbers (Long)
aaronze
39
40ms
17 Sep 2023
Evil Numbers (Long)
msbranicky
62
44ms
5 Sep 2023
Evil Numbers (Long)
rniii
39
58ms
21 Aug 2023
Evil Numbers (Long)
yzhs
34
48ms
21 Jun 2023
Evil Numbers (Long)
stefangimmillaro
33
52ms
12 Jun 2023
Evil Numbers (Long)
ovs-code
33
41ms
9 May 2023
Evil Numbers (Long)
m-tkach
34
40ms
9 May 2023
Evil Numbers (Long)
radarek
🥇
29
39ms
8 May 2023
Evil Numbers (Long)
RuyiLi
39
38ms
7 Apr 2023
Evil Numbers (Long)
polyrtm
45
59ms
29 Mar 2023
Evil Numbers (Long)
Eebil
51
39ms
20 Mar 2023
Evil Numbers (Long)
AlephSquirrel
41
39ms
7 Mar 2023
Evil Numbers (Long)
Haksell
39
39ms
22 Feb 2023
Evil Numbers (Long)
badboj40
47
39ms
14 Feb 2023
Evil Numbers (Long)
DialFrost
36
39ms
29 Jan 2023
Evil Numbers (Long)
Betuaredead
77
38ms
7 Jan 2023
Evil Numbers (Long)
olivermrose
36
50ms
5 Dec 2022
Evil Numbers (Long)
rak1507
34
43ms
3 Dec 2022
Evil Numbers (Long)
purp
55
53ms
16 Nov 2022
Evil Numbers (Long)
jbbarth
38
40ms
5 Nov 2022
Evil Numbers (Long)
fynnkroeger
48
40ms
17 Oct 2022
Evil Numbers (Long)
OhmNomNom
36
42ms
15 Oct 2022
Evil Numbers (Long)
KatieLG
35
38ms
8 Oct 2022
Evil Numbers (Long)
Andriamanitra
36
39ms
22 Sep 2022
Evil Numbers (Long)
janlelis
34
38ms
16 Sep 2022
Evil Numbers (Long)
HallMatthew314
49
38ms
14 Sep 2022
Evil Numbers (Long)
sisyphus-ppcg
🥇
29
38ms
13 Sep 2022
Evil Numbers (Long)
nwellnhof
34
40ms
11 Sep 2022
Evil Numbers (Long)
KatieLG-Transpiler
1,956
37ms
10 Sep 2022
Evil Numbers (Long)
jared-hughes
35
38ms
9 Sep 2022
Evil Numbers (Long)
anter69
35
38ms
8 Sep 2022
Evil Numbers (Long)
janbehrens
35
37ms
7 Sep 2022
Evil Numbers (Long)
Natanaelel
34
37ms
7 Sep 2022
Evil Numbers (Long)
JayXon
🥇
29
45ms
7 Sep 2022
Evil Numbers (Long)
GrayJoKing
33
44ms
7 Sep 2022
Evil Numbers (Long)
SirBogman
35
39ms
7 Sep 2022
Evil Numbers (Long)
JRaspass
1,955
39ms
6 Sep 2022
Evil Numbers (Long)
4hg
34
42ms
6 Sep 2022
Evil Numbers (Long)
Shanethegamer
34
49ms
6 Sep 2022
Evil Numbers (Long)
Lydxn
🥇
29
40ms
6 Sep 2022
Evil Numbers (Long)
MeWhenI
33
38ms
6 Sep 2022