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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
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
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
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Sudoku
Babafaba
376
642ms
4 days ago
Sudoku
BREMAUCY
553
19ms
26 days ago
Sudoku
bzijlema
399
1,732ms
2 Oct 2025
Sudoku
blaztoma
498
17ms
18 Sep 2025
Sudoku
albanian-laundromat
262
15ms
16 Sep 2025
Sudoku
dokutan
427
34ms
13 Sep 2025
Sudoku
cros107
430
900ms
7 Sep 2025
Sudoku
HumanoidCPU
360
15ms
6 Sep 2025
Sudoku
InigoK
286
59ms
29 Aug 2025
Sudoku
Upload-and-View
935
68ms
25 Aug 2025
Sudoku
CaedenHarper
458
63ms
3 Aug 2025
Sudoku
Zhenyu-Bo
1,760
21ms
1 Aug 2025
Sudoku
ndren
390
17ms
26 Jul 2025
Sudoku
klixel
647
41ms
20 Jul 2025
Sudoku
RaBa21
476
124ms
17 Jul 2025
Sudoku
FortuiteMan
552
105ms
14 Jul 2025
Sudoku
Flekay
760
43ms
10 Jul 2025
Sudoku
ovs-code
299
48ms
29 Jun 2025
Sudoku
ryyyn
389
1,136ms
19 Jun 2025
Sudoku
CornerMercury
590
15ms
9 Jun 2025
Sudoku
KatieLG
291
31ms
25 May 2025
Sudoku
kistlerf
526
160ms
19 May 2025
Sudoku
georgekattenbelt
408
19ms
6 May 2025
Sudoku
emgordon154
256
18ms
23 Apr 2025
Sudoku
mbittner20
541
160ms
14 Apr 2025
Sudoku
snoozingnewt
427
19ms
31 Mar 2025
Sudoku
zt14427
4,420
1,280ms
18 Mar 2025
Sudoku
sean-niemann
204
11ms
17 Mar 2025
Sudoku
jameswmccarty
1,160
27ms
13 Mar 2025
Sudoku
ahmetdemirag
353
40ms
4 Mar 2025
Sudoku
ComputerKWasTaken
685
58ms
23 Jan 2025
Sudoku
JunkIce
427
49ms
19 Jan 2025
Sudoku
yokasuretsu
691
16ms
6 Jan 2025
Sudoku
AidanWalter
1,944
28ms
3 Jan 2025
Sudoku
croc54
599
20ms
14 Dec 2024
Sudoku
lifthrasiir
190
78ms
16 Nov 2024
Sudoku
wh3n3v3r
496
22ms
14 Nov 2024
Sudoku
yousefalizadeh
567
17ms
8 Oct 2024
Sudoku
hiichbindermax
1,251
75ms
17 Sep 2024
Sudoku
jatloe
392
39ms
16 Sep 2024
Sudoku
PyryL
659
186ms
24 Aug 2024
Sudoku
duckyluuk
230
28ms
15 Aug 2024
Sudoku
pardouin
174
85ms
12 Jul 2024
Sudoku
Steffan153
200
15ms
11 Jul 2024
Sudoku
cingulataluke
846
35ms
3 Jun 2024
Sudoku
Natanaelel
579
23ms
24 May 2024
Sudoku
cakular
440
28ms
19 May 2024
Sudoku
jtaxen
2,123
26ms
10 May 2024
Sudoku
inverseLorentz
1,081
27ms
30 Apr 2024
Sudoku
aalec
561
30ms
25 Apr 2024
Sudoku
SB-945
308
578ms
17 Apr 2024
Sudoku
yuchuehw
874
28ms
11 Apr 2024
Sudoku
5cw
347
215ms
28 Mar 2024
Sudoku
mathisfun271
647
31ms
6 Mar 2024
Sudoku
DialFrost
379
326ms
14 Feb 2024
Sudoku
kg583
196
142ms
1 Feb 2024
Sudoku
SirBogman
168
68ms
22 Jan 2024
Sudoku
MeWhenI
351
111ms
17 Jan 2024
Sudoku
neel11235813
179
79ms
11 Jan 2024
Sudoku
brimstonetrader
555
3,418ms
11 Jan 2024
Sudoku
hallvabo
189
35ms
31 Dec 2023
Sudoku
adamnielson42
513
43ms
27 Nov 2023
Sudoku
stefangimmillaro
389
523ms
29 Oct 2023
Sudoku
FlorianCassayre
423
176ms
18 Sep 2023
Sudoku
StefanHabel
405
41ms
4 Sep 2023
Sudoku
msbranicky
694
18ms
31 Aug 2023
Sudoku
christensendaniel
2,125
21ms
24 Aug 2023
Sudoku
Vaekor
570
27ms
3 Aug 2023
Sudoku
Ripick
711
180ms
24 Jul 2023
Sudoku
janbehrens
519
1,101ms
17 Jun 2023
Sudoku
Yewzir
506
3,158ms
8 Jun 2023
Sudoku
TaserTheFox
611
958ms
23 May 2023
Sudoku
JayXon
💎
158
36ms
21 May 2023
Sudoku
eiburns
570
153ms
10 May 2023
Sudoku
TheCod-r
899
28ms
20 Mar 2023