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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
Ascending Primes
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
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
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
Binary Lambda Calculus
Calendar
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
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Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
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p-adic Expansion
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Hole
Golfer
Chars
Time
Submitted
Sudoku (Fill-in)
CornerMercury
166
19ms
32 hours ago
Sudoku (Fill-in)
blaztoma
286
28ms
6 days ago
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ryyyn
174
181ms
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329
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287
59ms
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144
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310
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215
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416
12ms
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InigoK
182
713ms
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sean-niemann
120
45ms
26 Aug 2025
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Zhenyu-Bo
1,900
14ms
1 Aug 2025
Sudoku (Fill-in)
ndren
267
24ms
14 Jul 2025
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plcc0
154
107ms
22 Apr 2025
Sudoku (Fill-in)
evan18c
3,070
30ms
18 Apr 2025
Sudoku (Fill-in)
Keegan-T
1,431
14ms
18 Apr 2025
Sudoku (Fill-in)
mbittner20
564
127ms
14 Apr 2025
Sudoku (Fill-in)
madex
405
30ms
21 Mar 2025
Sudoku (Fill-in)
zt14427
4,377
21ms
18 Mar 2025
Sudoku (Fill-in)
jameswmccarty
1,205
19ms
13 Mar 2025
Sudoku (Fill-in)
ahmetdemirag
245
70ms
4 Mar 2025
Sudoku (Fill-in)
ovs-code
170
283ms
9 Feb 2025
Sudoku (Fill-in)
ComputerKWasTaken
705
24ms
23 Jan 2025
Sudoku (Fill-in)
croc54
358
54ms
18 Jan 2025
Sudoku (Fill-in)
lifthrasiir
133
74ms
2 Dec 2024
Sudoku (Fill-in)
theadamabrams
784
87ms
28 Nov 2024
Sudoku (Fill-in)
wh3n3v3r
240
98ms
18 Nov 2024
Sudoku (Fill-in)
Natanaelel
240
18ms
11 Nov 2024
Sudoku (Fill-in)
xyangst
760
14ms
12 Oct 2024
Sudoku (Fill-in)
JesseNoEyes
982
34ms
20 Sep 2024
Sudoku (Fill-in)
jatloe
122
153ms
16 Sep 2024
Sudoku (Fill-in)
Rubiksmath
188
101ms
2 Sep 2024
Sudoku (Fill-in)
duckyluuk
126
30ms
29 Aug 2024
Sudoku (Fill-in)
dokutan
490
80ms
3 Aug 2024
Sudoku (Fill-in)
pardouin
🥉
108
49ms
12 Jul 2024
Sudoku (Fill-in)
Steffan153
117
142ms
11 Jul 2024
Sudoku (Fill-in)
kg583
129
3,039ms
9 Jun 2024
Sudoku (Fill-in)
jtaxen
2,165
25ms
10 May 2024
Sudoku (Fill-in)
neel11235813
148
27ms
3 Apr 2024
Sudoku (Fill-in)
AlephSquirrel
316
73ms
30 Mar 2024
Sudoku (Fill-in)
davecame
269
69ms
20 Mar 2024
Sudoku (Fill-in)
anter69
146
416ms
15 Mar 2024
Sudoku (Fill-in)
5cw
164
103ms
11 Mar 2024
Sudoku (Fill-in)
mathisfun271
470
25ms
6 Mar 2024
Sudoku (Fill-in)
DialFrost
136
130ms
14 Feb 2024
Sudoku (Fill-in)
rsgray
468
96ms
7 Feb 2024
Sudoku (Fill-in)
SirBogman
117
1,013ms
22 Jan 2024
Sudoku (Fill-in)
yuchuehw
410
15ms
17 Jan 2024
Sudoku (Fill-in)
hallvabo
109
37ms
31 Dec 2023
Sudoku (Fill-in)
commandblockguy
358
19ms
31 Oct 2023
Sudoku (Fill-in)
FlorianCassayre
250
714ms
18 Sep 2023
Sudoku (Fill-in)
StefanHabel
297
26ms
4 Sep 2023
Sudoku (Fill-in)
SB-945
164
578ms
31 Aug 2023
Sudoku (Fill-in)
stefangimmillaro
217
109ms
17 Aug 2023
Sudoku (Fill-in)
FortuiteMan
203
349ms
6 Aug 2023
Sudoku (Fill-in)
bizy-coder
188
522ms
4 Aug 2023
Sudoku (Fill-in)
AlexanderFair
270
190ms
31 Jul 2023
Sudoku (Fill-in)
msbranicky
704
18ms
26 Jul 2023
Sudoku (Fill-in)
janbehrens
441
379ms
17 Jun 2023
Sudoku (Fill-in)
Yewzir
567
3,042ms
11 Jun 2023
Sudoku (Fill-in)
TaserTheFox
428
4,305ms
23 May 2023
Sudoku (Fill-in)
eiburns
441
20ms
10 May 2023
Sudoku (Fill-in)
adamnielson42
263
74ms
25 Apr 2023
Sudoku (Fill-in)
galloj
620
17ms
24 Feb 2023
Sudoku (Fill-in)
aksyristos
632
146ms
27 Jan 2023
Sudoku (Fill-in)
scpchicken
300
181ms
7 Jan 2023
Sudoku (Fill-in)
prplz
225
51ms
6 Jan 2023
Sudoku (Fill-in)
za3k
793
28ms
14 Dec 2022
Sudoku (Fill-in)
QuincyNash
547
2,371ms
4 Dec 2022
Sudoku (Fill-in)
jakobkordez
178
66ms
2 Nov 2022