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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
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Billiards
brainfuck
Card Number Validation
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Catalan’s Constant
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Diamonds
Divisors
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Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
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Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
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Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
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Niven Numbers (Long)
Number Spiral
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Odious Numbers (Long)
Ordinal Numbers
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Pangram Grep
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Pernicious Numbers (Long)
Poker
Polyominoes
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Prime Numbers (Long)
Proximity Grid
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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)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
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p-adic Expansion
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Hole
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Bytes
Submitted
Van Eck Sequence
codewrite
323
31 hours ago
Van Eck Sequence
snoozingnewt
142
2 days ago
Van Eck Sequence
bstrat
22
3 days ago
Van Eck Sequence
CornerMercury
60
3 days ago
Van Eck Sequence
HumanoidCPU
2,563
3 days ago
Van Eck Sequence
luuumine
2,567
4 days ago
Van Eck Sequence
stefangimmillaro
92
4 days ago
Van Eck Sequence
CaedenHarper
129
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Van Eck Sequence
Andrey-Plotnikov
117
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Van Eck Sequence
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244
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Van Eck Sequence
plcc0
14
6 days ago
Van Eck Sequence
jacekwladzinski
60
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Van Eck Sequence
Schmitt-Very-Cool
197
7 days ago
Van Eck Sequence
namelessiw
🥉
90
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Van Eck Sequence
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56
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Van Eck Sequence
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166
8 days ago
Van Eck Sequence
omero-san
244
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Van Eck Sequence
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140
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Van Eck Sequence
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67
8 days ago
Van Eck Sequence
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67
8 days ago
Van Eck Sequence
qpwoeirut
62
9 days ago
Van Eck Sequence
frankgraziano
🥈
245
9 days ago
Van Eck Sequence
kg583
🥇
61
10 days ago
Van Eck Sequence
KasperKivimaeki
110
11 days ago
Van Eck Sequence
snoozingnewt
87
11 days ago
Van Eck Sequence
CaedenHarper
3,608
11 days ago
Van Eck Sequence
snoozingnewt
79
11 days ago
Van Eck Sequence
snoozingnewt
79
11 days ago
Van Eck Sequence
Shanethegamer
3,608
11 days ago
Van Eck Sequence
snoozingnewt
154
12 days ago
Van Eck Sequence
JayXon
💎
85
13 days ago
Van Eck Sequence
albanian-laundromat
59
14 days ago
Van Eck Sequence
albanian-laundromat
57
14 days ago
Van Eck Sequence
sean-niemann
93
14 days ago
Van Eck Sequence
DialFrost
115
14 days ago
Van Eck Sequence
nwellnhof
🥈
86
15 days ago
Van Eck Sequence
Shanethegamer
111
15 days ago
Van Eck Sequence
dokutan
1,187
15 days ago
Van Eck Sequence
snoozingnewt
63
15 days ago
Van Eck Sequence
smilesformiles3
89
15 days ago
Van Eck Sequence
rucin93
114
15 days ago
Van Eck Sequence
KatieLG
2,602
15 days ago
Van Eck Sequence
albanian-laundromat
68
16 days ago
Van Eck Sequence
AdrienHache
83
21 days ago
Van Eck Sequence
Shanethegamer
38
21 days ago
Van Eck Sequence
Shanethegamer
2,563
21 days ago
Van Eck Sequence
albanian-laundromat
🥉
248
21 days ago
Van Eck Sequence
AZTECCO
72
23 days ago
Van Eck Sequence
emgordon154
🥈
169
23 days ago
Van Eck Sequence
msbranicky
🥉
224
24 days ago
Van Eck Sequence
sean-niemann
🥇
51
24 days ago
Van Eck Sequence
JayXon
💎
159
25 days ago
Van Eck Sequence
MeWhenI
68
25 days ago
Van Eck Sequence
Alex-Huggett
84
27 days ago
Van Eck Sequence
KatieLG
3,709
27 days ago
Van Eck Sequence
dokutan
3,608
27 days ago
Van Eck Sequence
dokutan
3,559
12 Sep 2025
Van Eck Sequence
blaztoma
60
11 Sep 2025
Van Eck Sequence
pardouin
🥇
39
10 Sep 2025
Van Eck Sequence
pardouin
47
10 Sep 2025
Van Eck Sequence
kumavale
99
10 Sep 2025
Van Eck Sequence
Yax42
60
9 Sep 2025
Van Eck Sequence
albanian-laundromat
76
6 Sep 2025
Van Eck Sequence
snoozingnewt
80
6 Sep 2025
Van Eck Sequence
snoozingnewt
92
5 Sep 2025
Van Eck Sequence
DialFrost
🥇
51
5 Sep 2025
Van Eck Sequence
fuzzylojik-golf
2,567
4 Sep 2025
Van Eck Sequence
edsrzf
🥉
56
4 Sep 2025
Van Eck Sequence
edsrzf
83
1 Sep 2025
Van Eck Sequence
Bmrl7
66
31 Aug 2025
Van Eck Sequence
InigoK
65
26 Aug 2025
Van Eck Sequence
blaztoma
55
25 Aug 2025
Van Eck Sequence
CaedenHarper
54
23 Aug 2025
Van Eck Sequence
osNiko
91
22 Aug 2025
Van Eck Sequence
shelerr
67
22 Aug 2025