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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
Calendar
Card Number Validation
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Catalan’s Constant
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Cubes
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Divisors
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Emirp Numbers (Long)
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Evil Numbers (Long)
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Fibonacci
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Foo Fizz Buzz Bar
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Fractions
Game of Life
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Happy Numbers (Long)
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ISBN
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ln 2
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Maze
Medal Tally
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Morse Decoder
Morse Encoder
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Niven Numbers (Long)
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Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
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Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
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Prime Numbers (Long)
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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
Tower of Hanoi
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
Binary Lambda Calculus
Connect Four
Continued Fractions
Crossword
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CSS Grid
Ellipse Perimeters
Flags
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Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
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Snake
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Tutorial
Hole
Golfer
Chars
Time
Submitted
Kaprekar Numbers
ryyyn
100
4,381ms
33 hours ago
Kaprekar Numbers
sean-niemann
67
4,802ms
5 days ago
Kaprekar Numbers
ZakkkkAttackkkk
165
4,658ms
7 days ago
Kaprekar Numbers
plcc0
101
4,978ms
8 days ago
Kaprekar Numbers
KatieLG
125
2,040ms
22 days ago
Kaprekar Numbers
KatieLG-Transpiler
519
9ms
9 Jan 2026
Kaprekar Numbers
cros107
138
3,516ms
8 Jan 2026
Kaprekar Numbers
sunleonid
77
4,989ms
4 Jan 2026
Kaprekar Numbers
blaztoma
152
1,812ms
31 Dec 2025
Kaprekar Numbers
CornerMercury
78
4,963ms
28 Dec 2025
Kaprekar Numbers
kg583
68
4,205ms
27 Dec 2025
Kaprekar Numbers
CommandLeo
132
4,953ms
24 Dec 2025
Kaprekar Numbers
TheZwierzLF
314
1,967ms
18 Dec 2025
Kaprekar Numbers
051
317
3,648ms
16 Dec 2025
Kaprekar Numbers
bizy-coder
71
2,166ms
16 Dec 2025
Kaprekar Numbers
HumanoidCPU
254
10ms
7 Dec 2025
Kaprekar Numbers
Andrey2001
241
4,157ms
5 Dec 2025
Kaprekar Numbers
FortuiteMan
214
11ms
1 Dec 2025
Kaprekar Numbers
Babafaba
93
2,899ms
25 Nov 2025
Kaprekar Numbers
snoozingnewt
83
2,057ms
20 Nov 2025
Kaprekar Numbers
ApoChagi
216
1,231ms
17 Nov 2025
Kaprekar Numbers
cthierfelder
260
3,138ms
13 Nov 2025
Kaprekar Numbers
qpwoeirut
100
4,263ms
7 Nov 2025
Kaprekar Numbers
JOrE20
452
10ms
6 Nov 2025
Kaprekar Numbers
webmiche
250
4,124ms
6 Nov 2025
Kaprekar Numbers
retrohun
234
2,387ms
23 Oct 2025
Kaprekar Numbers
jameswmccarty
234
2,514ms
12 Oct 2025
Kaprekar Numbers
luuumine
123
4,832ms
8 Oct 2025
Kaprekar Numbers
StefanHabel
158
4,970ms
2 Oct 2025
Kaprekar Numbers
InigoK
143
1,305ms
19 Sep 2025
Kaprekar Numbers
duckyluuk
171
4,439ms
2 Sep 2025
Kaprekar Numbers
madeforlosers
237
2,158ms
26 Aug 2025
Kaprekar Numbers
Mikey-Beep
274
2,302ms
24 Aug 2025
Kaprekar Numbers
robin-scragg
155
3,744ms
23 Aug 2025
Kaprekar Numbers
CaedenHarper
103
4,144ms
10 Aug 2025
Kaprekar Numbers
muser-logiccpu
458
9ms
9 Aug 2025
Kaprekar Numbers
Flekay
186
9ms
8 Aug 2025
Kaprekar Numbers
Unknownuserfrommars
452
10ms
5 Aug 2025
Kaprekar Numbers
BREMAUCY
147
4,580ms
26 Jul 2025
Kaprekar Numbers
vgamula
452
11ms
25 Jul 2025
Kaprekar Numbers
SectorCorruptor
452
10ms
24 Jul 2025
Kaprekar Numbers
SirBogman
89
4,523ms
22 Jul 2025
Kaprekar Numbers
KasperKivimaeki
457
10ms
15 Jul 2025
Kaprekar Numbers
anter69
76
3,843ms
14 Jul 2025
Kaprekar Numbers
fkantelberg
232
1,918ms
12 Jul 2025
Kaprekar Numbers
RaBa21
150
4,108ms
11 Jul 2025
Kaprekar Numbers
ndren
83
4,951ms
4 Jul 2025
Kaprekar Numbers
albanian-laundromat
92
2,559ms
22 Jun 2025
Kaprekar Numbers
hallvabo
🥇
64
4,961ms
11 Jun 2025
Kaprekar Numbers
commandz0
171
4,703ms
1 Jun 2025
Kaprekar Numbers
rucin93
107
4,509ms
31 May 2025
Kaprekar Numbers
guilhem-roy
163
3,698ms
29 May 2025
Kaprekar Numbers
5cw
84
2,108ms
29 May 2025
Kaprekar Numbers
andrewjc2000
97
4,055ms
21 May 2025
Kaprekar Numbers
emgordon154
106
4,841ms
9 May 2025
Kaprekar Numbers
4atj
80
4,978ms
19 Apr 2025
Kaprekar Numbers
bricknellj
147
3,551ms
16 Apr 2025
Kaprekar Numbers
zacjl
71
2,138ms
10 Apr 2025
Kaprekar Numbers
moustave
452
10ms
9 Apr 2025
Kaprekar Numbers
calebaitken
144
2,724ms
9 Apr 2025
Kaprekar Numbers
Jaydosu
232
4,855ms
9 Apr 2025
Kaprekar Numbers
rollershutter
279
2,553ms
8 Apr 2025
Kaprekar Numbers
scpchicken
174
3,429ms
17 Feb 2025
Kaprekar Numbers
kevinnaviapaiva
293
4,876ms
13 Feb 2025
Kaprekar Numbers
sciencejiho
915
10ms
12 Feb 2025
Kaprekar Numbers
CLOStrophobic
356
4,507ms
9 Feb 2025
Kaprekar Numbers
m-tkach
86
3,269ms
4 Feb 2025
Kaprekar Numbers
dokutan
154
1,682ms
4 Feb 2025
Kaprekar Numbers
mathisfun271
452
10ms
25 Jan 2025
Kaprekar Numbers
croc54
170
2,733ms
9 Jan 2025
Kaprekar Numbers
maxgodfrey2004
280
2,540ms
4 Jan 2025
Kaprekar Numbers
AidanWalter
915
11ms
3 Jan 2025
Kaprekar Numbers
CatsAreFluffy
165
4,967ms
15 Dec 2024
Kaprekar Numbers
adamnielson42
395
4,427ms
3 Dec 2024
Kaprekar Numbers
roguh
452
9ms
27 Nov 2024
Kaprekar Numbers
JunkIce
250
10ms
24 Nov 2024
Kaprekar Numbers
btjones0
138
4,995ms
21 Nov 2024
Kaprekar Numbers
JesseNoEyes
301
3,502ms
17 Nov 2024
Kaprekar Numbers
lifthrasiir
67
2,721ms
16 Nov 2024
Kaprekar Numbers
neihousaigaai
225
1,976ms
15 Nov 2024