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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
Arithmetic Numbers
Arrows
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ASCII Table
Billiards
brainfuck
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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
Happy Numbers
Happy Numbers (Long)
Hexdump
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
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Morse Decoder
Morse Encoder
Musical Chords
N Queens
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)
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
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CSS Grid
Ellipse Perimeters
Flags
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Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Minesweeper
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p-adic Expansion
Polygon Triangulations
QR Encoder
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Semiprime Numbers
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Snake
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Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Kaprekar Numbers
Babafaba
🥈
480
11ms
7 hours ago
Kaprekar Numbers
Babafaba
448
6ms
33 hours ago
Kaprekar Numbers
luuumine
107
367ms
2 days ago
Kaprekar Numbers
blaztoma
95
691ms
4 days ago
Kaprekar Numbers
Babafaba
251
10ms
5 days ago
Kaprekar Numbers
KatieLG
529
139ms
6 days ago
Kaprekar Numbers
iczelia
447
9ms
6 days ago
Kaprekar Numbers
retrohun
234
2,427ms
7 days ago
Kaprekar Numbers
dokutan
258
1,864ms
9 days ago
Kaprekar Numbers
stefangimmillaro
🥈
407
2ms
10 days ago
Kaprekar Numbers
KatieLG
143
3,169ms
11 days ago
Kaprekar Numbers
KatieLG
🥉
150
2ms
11 days ago
Kaprekar Numbers
snoozingnewt
286
80ms
12 days ago
Kaprekar Numbers
CaedenHarper
108
657ms
12 days ago
Kaprekar Numbers
kmathis22
116
1,298ms
16 days ago
Kaprekar Numbers
snoozingnewt
136
1,710ms
17 days ago
Kaprekar Numbers
snoozingnewt
119
1,310ms
17 days ago
Kaprekar Numbers
sean-niemann
59
4,327ms
18 days ago
Kaprekar Numbers
jameswmccarty
234
2,599ms
19 days ago
Kaprekar Numbers
Yax42
110
1,365ms
19 days ago
Kaprekar Numbers
Yax42
127
938ms
19 days ago
Kaprekar Numbers
kumavale
🥈
97
1,154ms
20 days ago
Kaprekar Numbers
edsrzf
122
2,591ms
21 days ago
Kaprekar Numbers
CommandLeo
359
13ms
22 days ago
Kaprekar Numbers
ryyyn
138
4,488ms
22 days ago
Kaprekar Numbers
luuumine
123
4,587ms
22 days ago
Kaprekar Numbers
051
457
10ms
23 days ago
Kaprekar Numbers
CaedenHarper
114
877ms
23 days ago
Kaprekar Numbers
snoozingnewt
149
3,821ms
23 days ago
Kaprekar Numbers
Blendi-Goose
387
2ms
23 days ago
Kaprekar Numbers
ZakChrom
175
3,122ms
23 days ago
Kaprekar Numbers
HumanoidCPU
448
2ms
24 days ago
Kaprekar Numbers
KatieLG
149
3,167ms
24 days ago
Kaprekar Numbers
CornerMercury
80
4,574ms
24 days ago
Kaprekar Numbers
dokutan
216
346ms
24 days ago
Kaprekar Numbers
stefangimmillaro
96
1,430ms
25 days ago
Kaprekar Numbers
KatieLG
266
9ms
25 days ago
Kaprekar Numbers
bitsandbeyond
💎
103
4,571ms
26 days ago
Kaprekar Numbers
snoozingnewt
🥈
453
23ms
27 days ago
Kaprekar Numbers
KatieLG
284
35ms
2 Oct 2025
Kaprekar Numbers
namelessiw
98
1,434ms
2 Oct 2025
Kaprekar Numbers
StefanHabel
158
4,950ms
2 Oct 2025
Kaprekar Numbers
Schmitt-Very-Cool
133
1,274ms
30 Sep 2025
Kaprekar Numbers
blaztoma
109
2,173ms
30 Sep 2025
Kaprekar Numbers
albanian-laundromat
128
4,466ms
29 Sep 2025
Kaprekar Numbers
snoozingnewt
110
4,671ms
29 Sep 2025
Kaprekar Numbers
Shanethegamer
561
1,808ms
28 Sep 2025
Kaprekar Numbers
edsrzf
💎
91
4,807ms
28 Sep 2025
Kaprekar Numbers
edsrzf
🥈
130
2,001ms
28 Sep 2025
Kaprekar Numbers
edsrzf
124
853ms
28 Sep 2025
Kaprekar Numbers
CaedenHarper
🥈
95
4,064ms
28 Sep 2025
Kaprekar Numbers
snoozingnewt
476
3,420ms
27 Sep 2025
Kaprekar Numbers
snoozingnewt
130
4,874ms
27 Sep 2025
Kaprekar Numbers
JayXon
🥈
89
1,393ms
26 Sep 2025
Kaprekar Numbers
snoozingnewt
141
1,138ms
25 Sep 2025
Kaprekar Numbers
Liibe
123
1,127ms
25 Sep 2025
Kaprekar Numbers
nwellnhof
90
1,579ms
25 Sep 2025
Kaprekar Numbers
Shanethegamer
133
3,429ms
25 Sep 2025
Kaprekar Numbers
error256
108
1,047ms
24 Sep 2025
Kaprekar Numbers
sean-niemann
💎
88
1,254ms
24 Sep 2025
Kaprekar Numbers
DialFrost
🥈
89
1,214ms
24 Sep 2025
Kaprekar Numbers
rucin93
90
1,171ms
24 Sep 2025
Kaprekar Numbers
KatieLG
487
498ms
24 Sep 2025
Kaprekar Numbers
Shanethegamer
510
2ms
23 Sep 2025
Kaprekar Numbers
jerrandolph
126
806ms
21 Sep 2025
Kaprekar Numbers
InigoK
143
2,290ms
19 Sep 2025
Kaprekar Numbers
Shanethegamer
448
3ms
18 Sep 2025
Kaprekar Numbers
cros107
139
3,450ms
17 Sep 2025
Kaprekar Numbers
emgordon154
🥉
172
4,546ms
16 Sep 2025
Kaprekar Numbers
JayXon
💎
158
4,598ms
15 Sep 2025
Kaprekar Numbers
MeWhenI
450
1,070ms
15 Sep 2025
Kaprekar Numbers
snoozingnewt
🥉
449
34ms
14 Sep 2025
Kaprekar Numbers
DialFrost
🥈
160
3,818ms
13 Sep 2025
Kaprekar Numbers
KatieLG
662
1,870ms
13 Sep 2025
Kaprekar Numbers
snoozingnewt
🥈
222
320ms
13 Sep 2025