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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
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Arrows
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ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Chess Move Validation
Christmas Trees
Collatz
Connect Four
Continued Fractions
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
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Gray Code Encoder
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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
Multitap Input
Musical Chords
N Queens
Nim
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)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
Ulam Sequence
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
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
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Hole
Golfer
Chars
Time
Submitted
Sudoku (Fill-in)
bikini
💎
59
39ms
13 hours ago
Sudoku (Fill-in)
JOrE20
385
474ms
2 days ago
Sudoku (Fill-in)
rucin93
🥇
112
1,921ms
3 days ago
Sudoku (Fill-in)
pardouin
155
3,934ms
3 days ago
Sudoku (Fill-in)
snoozingnewt
🥉
281
152ms
4 days ago
Sudoku (Fill-in)
emplv
🥇
112
23ms
4 days ago
Sudoku (Fill-in)
snoozingnewt
💎
126
109ms
5 days ago
Sudoku (Fill-in)
ihsan-gpt
161
225ms
6 days ago
Sudoku (Fill-in)
ryyyn
163
1,541ms
8 days ago
Sudoku (Fill-in)
kasarino
716
46ms
8 days ago
Sudoku (Fill-in)
zzh1996
241
656ms
8 days ago
Sudoku (Fill-in)
bpharaldsson
926
454ms
8 days ago
Sudoku (Fill-in)
JayXon
🥈
260
326ms
12 days ago
Sudoku (Fill-in)
kkoenig
💎
259
306ms
12 days ago
Sudoku (Fill-in)
o0lit3
💎
81
119ms
13 days ago
Sudoku (Fill-in)
canissimia-delete-this
🥉
102
101ms
13 days ago
Sudoku (Fill-in)
canissimia
🥈
101
531ms
13 days ago
Sudoku (Fill-in)
christos-cantina-security
🥈
150
135ms
15 days ago
Sudoku (Fill-in)
christos-cantina-security
262
18ms
15 days ago
Sudoku (Fill-in)
christos-cantina-security
🥈
60
7ms
15 days ago
Sudoku (Fill-in)
JOrE20
150
62ms
15 days ago
Sudoku (Fill-in)
christos-cantina-security
117
111ms
16 days ago
Sudoku (Fill-in)
christos-cantina-security
140
86ms
16 days ago
Sudoku (Fill-in)
albanian-laundromat
💎
329
31ms
16 days ago
Sudoku (Fill-in)
bitsandbeyond
🥈
340
30ms
16 days ago
Sudoku (Fill-in)
Andrey2001
204
404ms
16 days ago
Sudoku (Fill-in)
codewrite
1,307
568ms
16 days ago
Sudoku (Fill-in)
kg583
116
41ms
17 days ago
Sudoku (Fill-in)
kg583
111
474ms
17 days ago
Sudoku (Fill-in)
codewrite
883
471ms
17 days ago
Sudoku (Fill-in)
blaztoma
162
41ms
17 days ago
Sudoku (Fill-in)
albanian-laundromat
💎
370
141ms
19 days ago
Sudoku (Fill-in)
jordansafer
594
13ms
20 days ago
Sudoku (Fill-in)
emgordon154
🥈
65
140ms
20 days ago
Sudoku (Fill-in)
ovs-code
93
1,428ms
21 days ago
Sudoku (Fill-in)
Lv0Sys
259
39ms
21 days ago
Sudoku (Fill-in)
Lv0Sys
217
16ms
21 days ago
Sudoku (Fill-in)
bitsandbeyond
150
177ms
22 days ago
Sudoku (Fill-in)
bitsandbeyond
251
422ms
23 days ago
Sudoku (Fill-in)
scpchicken
194
240ms
24 days ago
Sudoku (Fill-in)
bitsandbeyond
💎
121
4,117ms
25 days ago
Sudoku (Fill-in)
bitsandbeyond
🥉
230
117ms
26 days ago
Sudoku (Fill-in)
bitsandbeyond
214
17ms
26 days ago
Sudoku (Fill-in)
Steffan153
💎
113
2,069ms
27 days ago
Sudoku (Fill-in)
UnderKoen
🥉
2,931
39ms
2 Sep 2026
Sudoku (Fill-in)
prestosilver
391
469ms
26 Aug 2026
Sudoku (Fill-in)
Steffan153
172
64ms
16 Aug 2026
Sudoku (Fill-in)
MostParsingVex
🥉
361
32ms
15 Aug 2026
Sudoku (Fill-in)
LostSyntax21
🥈
672
193ms
14 Aug 2026
Sudoku (Fill-in)
zzh1996
151
46ms
10 Aug 2026
Sudoku (Fill-in)
zzh1996
127
99ms
10 Aug 2026
Sudoku (Fill-in)
albanian-laundromat
🥈
227
175ms
9 Aug 2026
Sudoku (Fill-in)
MostParsingVex
💎
302
713ms
8 Aug 2026
Sudoku (Fill-in)
targrik
🥉
203
885ms
7 Aug 2026
Sudoku (Fill-in)
albanian-laundromat
💎
250
48ms
4 Aug 2026
Sudoku (Fill-in)
qpwoeirut
282
313ms
2 Aug 2026
Sudoku (Fill-in)
albanian-laundromat
💎
263
1,746ms
30 Jul 2026
Sudoku (Fill-in)
albanian-laundromat
💎
290
119ms
29 Jul 2026
Sudoku (Fill-in)
edsrzf
🥉
277
362ms
27 Jul 2026
Sudoku (Fill-in)
albanian-laundromat
💎
169
2,273ms
27 Jul 2026
Sudoku (Fill-in)
scpchicken
🥈
405
20ms
20 Jul 2026
Sudoku (Fill-in)
scpchicken
127
17ms
20 Jul 2026
Sudoku (Fill-in)
Seek64
170
42ms
18 Jul 2026
Sudoku (Fill-in)
zzh1996
🥈
63
39ms
14 Jul 2026
Sudoku (Fill-in)
zzh1996
82
5ms
11 Jul 2026
Sudoku (Fill-in)
CarsonChr
1,124
502ms
9 Jul 2026
Sudoku (Fill-in)
duckyluuk
💎
289
4,555ms
8 Jul 2026
Sudoku (Fill-in)
MostParsingVex
🥉
262
2,481ms
5 Jul 2026
Sudoku (Fill-in)
codereport
531
120ms
3 Jul 2026
Sudoku (Fill-in)
kasarino
824
1,231ms
30 Jun 2026
Sudoku (Fill-in)
CaedenHarper
🥈
365
711ms
27 Jun 2026
Sudoku (Fill-in)
kmathis22
545
676ms
23 Jun 2026
Sudoku (Fill-in)
scpchicken
🥉
141
36ms
20 Jun 2026
Sudoku (Fill-in)
zzh1996
282
23ms
19 Jun 2026
Sudoku (Fill-in)
codereport
168
452ms
18 Jun 2026
Sudoku (Fill-in)
codereport
99
244ms
18 Jun 2026
Sudoku (Fill-in)
ovs-code
🥈
200
576ms
17 Jun 2026
Sudoku (Fill-in)
CaedenHarper
296
856ms
11 Jun 2026
Sudoku (Fill-in)
CaedenHarper
306
62ms
11 Jun 2026
Sudoku (Fill-in)
kasarino
802
2ms
11 Jun 2026
Sudoku (Fill-in)
CaedenHarper
182
58ms
11 Jun 2026
Sudoku (Fill-in)
scpchicken
🥈
591
90ms
9 Jun 2026
Sudoku (Fill-in)
CaedenHarper
🥈
298
9ms
1 Jun 2026
Sudoku (Fill-in)
Shanethegamer
2,569
59ms
31 May 2026
Sudoku (Fill-in)
Haksell
255
2ms
31 May 2026
Sudoku (Fill-in)
albanian-laundromat
227
127ms
31 May 2026
Sudoku (Fill-in)
yzhs
559
2ms
31 May 2026
Sudoku (Fill-in)
Openstreetmapler
2,444
6ms
30 May 2026
Sudoku (Fill-in)
Matter1024
742
3ms
30 May 2026
Sudoku (Fill-in)
AidanWalter
5,316
3ms
30 May 2026
Sudoku (Fill-in)
codereport
🥉
80
8ms
30 May 2026
Sudoku (Fill-in)
KasperKivimaeki
🥉
182
6ms
28 May 2026
Sudoku (Fill-in)
snoozingnewt
227
248ms
28 May 2026
Sudoku (Fill-in)
kcinnu
215
27ms
27 May 2026
Sudoku (Fill-in)
kcinnu
💎
409
1,740ms
26 May 2026
Sudoku (Fill-in)
weliveinhell
282
13ms
26 May 2026
Sudoku (Fill-in)
snoozingnewt
314
3ms
26 May 2026
Sudoku (Fill-in)
tomh1012
460
3ms
26 May 2026
Sudoku (Fill-in)
CornerMercury
1,627
3ms
26 May 2026
Sudoku (Fill-in)
emplv
💎
176
414ms
26 May 2026