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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
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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
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
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
Calendar
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Multitap Input
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
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Semiprime Numbers
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Tutorial
Hole
Golfer
Bytes
Time
Submitted
Sudoku
alexsave
1,094
1,160ms
6 days ago
Sudoku
Lv0Sys
478
11ms
7 days ago
Sudoku
JOrE20
818
14ms
7 days ago
Sudoku
madeforlosers
624
17ms
3 Nov 2025
Sudoku
CaedenHarper
665
15ms
31 Aug 2025
Sudoku
gigaprofisi
1,502
26ms
12 Aug 2025
Sudoku
acollett89
1,745
14ms
11 Jul 2025
Sudoku
sean-niemann
413
31ms
20 Feb 2025
Sudoku
Salutations45
536
21ms
27 Nov 2024
Sudoku
ovs-code
353
13ms
21 Nov 2024
Sudoku
LukeBridges
711
11ms
24 Sep 2024
Sudoku
helbling
482
11ms
12 Sep 2024
Sudoku
vlpx
🥉
340
19ms
18 Jun 2024
Sudoku
coreynash
699
21ms
1 Mar 2024
Sudoku
two-bad
583
12ms
25 Feb 2024
Sudoku
dmrichwa
384
78ms
31 Oct 2023
Sudoku
unfinishedprogram
1,037
67ms
27 Oct 2023
Sudoku
Larento
598
13ms
12 Oct 2023
Sudoku
Argeento
403
48ms
8 Sep 2023
Sudoku
una-ada
379
40ms
2 Sep 2023
Sudoku
voytxt
521
30ms
1 Sep 2023
Sudoku
stefangabos
937
11ms
20 Aug 2023
Sudoku
IchBinMichMarkus
783
14ms
18 Jul 2023
Sudoku
janbehrens
567
456ms
17 Jun 2023
Sudoku
JayXon
💎
314
20ms
21 May 2023
Sudoku
zakariamouhid
1,163
16ms
20 May 2023
Sudoku
emplv
🥈
326
26ms
18 May 2023
Sudoku
thisishowmymindworks
641
15ms
16 May 2023
Sudoku
ShiraJoseph
574
35ms
5 May 2023
Sudoku
CarsonChr
820
13ms
30 Apr 2023
Sudoku
tayloia
402
15ms
24 Mar 2023
Sudoku
jared-hughes
392
28ms
13 Feb 2023
Sudoku
rucin93
403
24ms
28 Nov 2022
Sudoku
KatieLG
626
24ms
21 Sep 2022
Sudoku
dgerblick
562
99ms
20 Sep 2022
Sudoku
GeorgeStechman
1,031
17ms
8 Sep 2022
Sudoku
BambooleanLogic
611
12ms
19 Aug 2022
Sudoku
itsh01
598
15ms
10 Jul 2022
Sudoku
KatieLG-Transpiler
2,807
12ms
2 Jul 2022
Sudoku
Irratix
375
15ms
16 May 2022
Sudoku
uttumuttu
443
13ms
21 Mar 2022
Sudoku
didion0
508
11ms
18 Feb 2022
Sudoku
MeWhenI
589
15ms
24 Sep 2021
Sudoku
prplz
404
40ms
27 Apr 2021
Sudoku
primo-ppcg
368
17ms
19 Oct 2020
Sudoku
tomtheisen
393
14ms
17 Oct 2020
Sudoku
dsntzn
938
11ms
4 Oct 2020
Sudoku
tomh1012
566
12ms
25 Sep 2020
Sudoku
proton
1,264
43ms
20 Jun 2020
Sudoku
dijs
950
11ms
26 Dec 2019
Sudoku
elisherer
1,531
13ms
11 Dec 2019
Sudoku
frobinsonj
587
12ms
21 Aug 2019
Sudoku
lukasmoellerch
623
55ms
18 Jul 2019
Sudoku
rambox11
723
13ms
23 Nov 2018