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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
Calendar
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
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
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
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Highly Composite Numbers
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p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
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Tutorial
Hole
Golfer
Bytes
Time
Submitted
Sudoku (Fill-in)
blaztoma
💎
262
156ms
4 days ago
Sudoku (Fill-in)
dokutan
724
1,522ms
6 days ago
Sudoku (Fill-in)
dokutan
724
17ms
6 days ago
Sudoku (Fill-in)
TheZwierzLF
478
117ms
6 days ago
Sudoku (Fill-in)
TheZwierzLF
554
63ms
8 days ago
Sudoku (Fill-in)
JOrE20
734
16ms
9 days ago
Sudoku (Fill-in)
acotis
🥉
323
239ms
9 days ago
Sudoku (Fill-in)
canissimia
💎
120
4,645ms
11 days ago
Sudoku (Fill-in)
KatieLG
3,238
844ms
11 days ago
Sudoku (Fill-in)
canissimia
💎
113
86ms
13 days ago
Sudoku (Fill-in)
canissimia
💎
162
3,532ms
14 days ago
Sudoku (Fill-in)
kmathis22
978
562ms
14 days ago
Sudoku (Fill-in)
snoozingnewt
🥈
343
131ms
15 days ago
Sudoku (Fill-in)
blaztoma
244
42ms
16 days ago
Sudoku (Fill-in)
blaztoma
173
67ms
16 days ago
Sudoku (Fill-in)
bzijlema
178
51ms
17 days ago
Sudoku (Fill-in)
blaztoma
276
18ms
20 days ago
Sudoku (Fill-in)
blaztoma
🥈
454
26ms
20 days ago
Sudoku (Fill-in)
blaztoma
🥉
312
12ms
20 days ago
Sudoku (Fill-in)
MeWhenI
196
333ms
21 days ago
Sudoku (Fill-in)
blaztoma
🥉
508
158ms
23 days ago
Sudoku (Fill-in)
kg583
🥈
334
407ms
23 days ago
Sudoku (Fill-in)
tomh1012
773
473ms
5 Dec 2025
Sudoku (Fill-in)
Lv0Sys
527
38ms
5 Dec 2025
Sudoku (Fill-in)
Lv0Sys
691
17ms
5 Dec 2025
Sudoku (Fill-in)
Lv0Sys
679
23ms
4 Dec 2025
Sudoku (Fill-in)
emgordon154
💎
228
4,307ms
4 Dec 2025
Sudoku (Fill-in)
snoozingnewt
263
889ms
1 Dec 2025
Sudoku (Fill-in)
snoozingnewt
271
53ms
1 Dec 2025
Sudoku (Fill-in)
CornerMercury
238
43ms
1 Dec 2025
Sudoku (Fill-in)
h3ra993huskp
1,111
904ms
30 Nov 2025
Sudoku (Fill-in)
AidanWalter
2,614
25ms
28 Nov 2025
Sudoku (Fill-in)
ndren
343
49ms
26 Nov 2025
Sudoku (Fill-in)
bitsandbeyond
💎
178
790ms
23 Nov 2025
Sudoku (Fill-in)
snoozingnewt
380
224ms
23 Nov 2025
Sudoku (Fill-in)
snoozingnewt
🥉
258
120ms
21 Nov 2025
Sudoku (Fill-in)
snoozingnewt
326
723ms
20 Nov 2025
Sudoku (Fill-in)
CaedenHarper
546
295ms
20 Nov 2025
Sudoku (Fill-in)
Yax42
276
425ms
17 Nov 2025
Sudoku (Fill-in)
albanian-laundromat
🥈
250
2,960ms
17 Nov 2025
Sudoku (Fill-in)
albanian-laundromat
💎
373
1,844ms
15 Nov 2025
Sudoku (Fill-in)
edsrzf
💎
244
1,089ms
10 Nov 2025
Sudoku (Fill-in)
MeWhenI
🥉
614
3,271ms
7 Nov 2025
Sudoku (Fill-in)
MeWhenI
🥈
228
850ms
7 Nov 2025
Sudoku (Fill-in)
Natanaelel
187
15ms
5 Nov 2025
Sudoku (Fill-in)
gigaprofisi
1,612
35ms
4 Nov 2025
Sudoku (Fill-in)
ryyyn
174
309ms
1 Nov 2025
Sudoku (Fill-in)
Jacob385
1,547
559ms
28 Oct 2025
Sudoku (Fill-in)
Babafaba
396
1,177ms
26 Oct 2025
Sudoku (Fill-in)
Babafaba
413
337ms
26 Oct 2025
Sudoku (Fill-in)
JayXon
💎
165
242ms
22 Oct 2025
Sudoku (Fill-in)
sean-niemann
🥈
166
1,535ms
22 Oct 2025
Sudoku (Fill-in)
CaedenHarper
686
442ms
21 Oct 2025
Sudoku (Fill-in)
albanian-laundromat
235
33ms
19 Oct 2025
Sudoku (Fill-in)
albanian-laundromat
229
742ms
19 Oct 2025
Sudoku (Fill-in)
albanian-laundromat
🦄
396
4,960ms
18 Oct 2025
Sudoku (Fill-in)
CaedenHarper
719
666ms
9 Oct 2025
Sudoku (Fill-in)
edsrzf
🥈
277
1,554ms
7 Oct 2025
Sudoku (Fill-in)
edsrzf
💎
183
4,251ms
6 Oct 2025
Sudoku (Fill-in)
emgordon154
💎
140
1,580ms
6 Oct 2025
Sudoku (Fill-in)
stefangimmillaro
264
671ms
6 Oct 2025
Sudoku (Fill-in)
JayXon
💎
185
576ms
4 Oct 2025
Sudoku (Fill-in)
BREMAUCY
327
34ms
4 Oct 2025
Sudoku (Fill-in)
emgordon154
💎
151
1,836ms
3 Oct 2025
Sudoku (Fill-in)
edsrzf
🥈
187
245ms
3 Oct 2025
Sudoku (Fill-in)
edsrzf
253
805ms
3 Oct 2025
Sudoku (Fill-in)
pardouin
138
154ms
3 Oct 2025
Sudoku (Fill-in)
edsrzf
💎
236
395ms
3 Oct 2025
Sudoku (Fill-in)
edsrzf
💎
287
4,527ms
3 Oct 2025
Sudoku (Fill-in)
edsrzf
💎
361
58ms
3 Oct 2025
Sudoku (Fill-in)
emgordon154
192
3,733ms
2 Oct 2025
Sudoku (Fill-in)
emgordon154
141
1,116ms
2 Oct 2025
Sudoku (Fill-in)
emgordon154
176
4,774ms
2 Oct 2025
Sudoku (Fill-in)
emgordon154
190
1,027ms
2 Oct 2025
Sudoku (Fill-in)
jerrandolph
724
275ms
1 Oct 2025
Sudoku (Fill-in)
edsrzf
💎
226
425ms
30 Sep 2025
Sudoku (Fill-in)
edsrzf
💎
204
3,666ms
29 Sep 2025
Sudoku (Fill-in)
JayXon
💎
220
1,108ms
27 Sep 2025
Sudoku (Fill-in)
CaedenHarper
🥉
362
4,168ms
25 Sep 2025
Sudoku (Fill-in)
sean-niemann
🥉
243
702ms
24 Sep 2025