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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
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 (Fill-in)
ryyyn
182
269ms
25 hours ago
Sudoku (Fill-in)
Jacob385
1,241
854ms
3 days ago
Sudoku (Fill-in)
snoozingnewt
325
388ms
4 days ago
Sudoku (Fill-in)
snoozingnewt
329
13ms
4 days ago
Sudoku (Fill-in)
Babafaba
228
950ms
4 days ago
Sudoku (Fill-in)
Babafaba
232
114ms
4 days ago
Sudoku (Fill-in)
sean-niemann
🥇
111
4,486ms
8 days ago
Sudoku (Fill-in)
CaedenHarper
686
436ms
9 days ago
Sudoku (Fill-in)
KatieLG
204
23ms
11 days ago
Sudoku (Fill-in)
albanian-laundromat
🦄
396
4,261ms
12 days ago
Sudoku (Fill-in)
blaztoma
380
50ms
14 days ago
Sudoku (Fill-in)
bitsandbeyond
💎
117
871ms
16 days ago
Sudoku (Fill-in)
CaedenHarper
719
681ms
22 days ago
Sudoku (Fill-in)
bzijlema
178
284ms
22 days ago
Sudoku (Fill-in)
edsrzf
🥉
277
261ms
23 days ago
Sudoku (Fill-in)
stefangimmillaro
264
536ms
25 days ago
Sudoku (Fill-in)
KatieLG
224
13ms
25 days ago
Sudoku (Fill-in)
JayXon
💎
142
891ms
26 days ago
Sudoku (Fill-in)
BREMAUCY
189
47ms
26 days ago
Sudoku (Fill-in)
emgordon154
💎
134
4,441ms
27 days ago
Sudoku (Fill-in)
emgordon154
💎
143
3,088ms
27 days ago
Sudoku (Fill-in)
edsrzf
🥈
143
116ms
27 days ago
Sudoku (Fill-in)
edsrzf
🥉
253
574ms
27 days ago
Sudoku (Fill-in)
pardouin
95
148ms
27 days ago
Sudoku (Fill-in)
edsrzf
💎
236
1,218ms
3 Oct 2025
Sudoku (Fill-in)
edsrzf
🥉
287
342ms
3 Oct 2025
Sudoku (Fill-in)
emgordon154
184
939ms
2 Oct 2025
Sudoku (Fill-in)
emgordon154
133
2,741ms
2 Oct 2025
Sudoku (Fill-in)
emgordon154
138
4,536ms
2 Oct 2025
Sudoku (Fill-in)
emgordon154
120
1,006ms
2 Oct 2025
Sudoku (Fill-in)
jerrandolph
718
346ms
1 Oct 2025
Sudoku (Fill-in)
edsrzf
💎
244
63ms
30 Sep 2025
Sudoku (Fill-in)
edsrzf
💎
226
636ms
30 Sep 2025
Sudoku (Fill-in)
edsrzf
💎
204
4,003ms
29 Sep 2025
Sudoku (Fill-in)
JayXon
💎
220
563ms
27 Sep 2025
Sudoku (Fill-in)
edsrzf
💎
132
4,633ms
26 Sep 2025
Sudoku (Fill-in)
sean-niemann
🥈
138
4,151ms
26 Sep 2025
Sudoku (Fill-in)
CaedenHarper
362
3,860ms
25 Sep 2025
Sudoku (Fill-in)
sean-niemann
🥈
243
611ms
24 Sep 2025
Sudoku (Fill-in)
KatieLG
208
611ms
24 Sep 2025
Sudoku (Fill-in)
qpwoeirut
287
33ms
21 Sep 2025
Sudoku (Fill-in)
blaztoma
337
34ms
18 Sep 2025
Sudoku (Fill-in)
albanian-laundromat
144
263ms
16 Sep 2025
Sudoku (Fill-in)
CaedenHarper
310
78ms
15 Sep 2025
Sudoku (Fill-in)
CaedenHarper
298
1,793ms
15 Sep 2025
Sudoku (Fill-in)
emgordon154
126
171ms
13 Sep 2025
Sudoku (Fill-in)
albanian-laundromat
146
529ms
12 Sep 2025
Sudoku (Fill-in)
albanian-laundromat
🥉
175
4,843ms
10 Sep 2025
Sudoku (Fill-in)
cros107
215
273ms
8 Sep 2025
Sudoku (Fill-in)
HumanoidCPU
412
491ms
6 Sep 2025
Sudoku (Fill-in)
HumanoidCPU
416
17ms
6 Sep 2025
Sudoku (Fill-in)
commandblockguy
339
1,714ms
1 Sep 2025
Sudoku (Fill-in)
InigoK
182
904ms
29 Aug 2025
Sudoku (Fill-in)
CaedenHarper
523
22ms
28 Aug 2025
Sudoku (Fill-in)
sean-niemann
113
482ms
26 Aug 2025
Sudoku (Fill-in)
sean-niemann
120
81ms
26 Aug 2025
Sudoku (Fill-in)
sean-niemann
🥈
146
3,616ms
25 Aug 2025
Sudoku (Fill-in)
sean-niemann
💎
89
269ms
25 Aug 2025
Sudoku (Fill-in)
pardouin
169
1,997ms
16 Aug 2025
Sudoku (Fill-in)
primo-ppcg
💎
542
29ms
13 Aug 2025
Sudoku (Fill-in)
AdrienHache
🥈
209
518ms
13 Aug 2025
Sudoku (Fill-in)
gigaprofisi
1,585
15ms
11 Aug 2025
Sudoku (Fill-in)
Kacarott
🥈
334
1,003ms
8 Aug 2025
Sudoku (Fill-in)
Zhenyu-Bo
1,900
27ms
1 Aug 2025
Sudoku (Fill-in)
LuisGoncalves05
2,176
231ms
31 Jul 2025
Sudoku (Fill-in)
namelessiw
223
510ms
22 Jul 2025
Sudoku (Fill-in)
kg583
🥈
261
4,619ms
21 Jul 2025
Sudoku (Fill-in)
albanian-laundromat
💎
215
352ms
16 Jul 2025
Sudoku (Fill-in)
ndren
267
26ms
14 Jul 2025
Sudoku (Fill-in)
acollett89
1,672
12ms
11 Jul 2025
Sudoku (Fill-in)
tatzyr
881
74ms
28 Jun 2025
Sudoku (Fill-in)
Lv0Sys
1,059
18ms
22 Jun 2025
Sudoku (Fill-in)
ovs-code
94
4,394ms
21 Jun 2025
Sudoku (Fill-in)
xsot
💎
195
2,187ms
14 Jun 2025
Sudoku (Fill-in)
pardouin
🥈
227
4,774ms
10 May 2025