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hole will go live in approximately
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. Why not try and solve it ahead of time?
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Hy
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
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
Gray Code Decoder
Gray Code Encoder
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
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
Yellowstone Permutation
Hole
Golfer
Chars
Time
Submitted
Sudoku
rollershutter
533
42ms
4 hours ago
Sudoku
ryyyn
359
135ms
6 days ago
Sudoku
JOrE20
439
20ms
12 days ago
Sudoku
bitsandbeyond
163
33ms
13 days ago
Sudoku
christos-cantina-security
321
13ms
13 days ago
Sudoku
blaztoma
302
42ms
14 days ago
Sudoku
Lv0Sys
373
20ms
17 days ago
Sudoku
jordansafer
581
21ms
18 days ago
Sudoku
ihsan-gpt
315
15ms
21 days ago
Sudoku
LostSyntax21
242
25ms
20 Aug 2026
Sudoku
ovs-code
288
33ms
18 Aug 2026
Sudoku
Seek64
295
16ms
17 Aug 2026
Sudoku
Steffan153
🥈
162
34ms
16 Aug 2026
Sudoku
qpwoeirut
416
26ms
2 Aug 2026
Sudoku
jesterjunk
228
28ms
11 Jul 2026
Sudoku
aksyristos
223
47ms
1 Jul 2026
Sudoku
zzh1996
350
71ms
19 Jun 2026
Sudoku
codereport
338
26ms
16 Jun 2026
Sudoku
Andrey2001
898
21ms
9 Jun 2026
Sudoku
pardouin
172
41ms
26 May 2026
Sudoku
bizy-coder
343
58ms
22 May 2026
Sudoku
oaiqjuy
521
89ms
20 May 2026
Sudoku
sisyphus-gpt
355
107ms
17 May 2026
Sudoku
scpchicken
437
36ms
7 May 2026
Sudoku
CaedenHarper
446
59ms
6 May 2026
Sudoku
vang1ong7ang
387
55ms
25 Apr 2026
Sudoku
madex
409
39ms
21 Apr 2026
Sudoku
StefanHabel
369
20ms
7 Apr 2026
Sudoku
snoozingnewt
219
39ms
14 Mar 2026
Sudoku
Flekay
387
35ms
10 Mar 2026
Sudoku
zhaohm14
435
37ms
16 Jan 2026
Sudoku
kurkale6ka
841
14ms
15 Dec 2025
Sudoku
CornerMercury
213
32ms
14 Dec 2025
Sudoku
dokutan
401
30ms
3 Dec 2025
Sudoku
Babafaba
376
691ms
26 Oct 2025
Sudoku
BREMAUCY
553
21ms
4 Oct 2025
Sudoku
bzijlema
399
900ms
2 Oct 2025
Sudoku
albanian-laundromat
262
23ms
16 Sep 2025
Sudoku
cros107
430
244ms
7 Sep 2025
Sudoku
HumanoidCPU
360
12ms
6 Sep 2025
Sudoku
InigoK
286
48ms
29 Aug 2025
Sudoku
muser-logiccpu
935
18ms
25 Aug 2025
Sudoku
Zhenyu-Bo
1,760
20ms
1 Aug 2025
Sudoku
ndren
390
20ms
26 Jul 2025
Sudoku
klixel
647
25ms
20 Jul 2025
Sudoku
RaBa21
476
79ms
17 Jul 2025
Sudoku
FortuiteMan
552
148ms
14 Jul 2025
Sudoku
KatieLG
291
14ms
25 May 2025
Sudoku
kistlerf
526
59ms
19 May 2025
Sudoku
gamk3
408
16ms
6 May 2025
Sudoku
emgordon154
256
19ms
23 Apr 2025
Sudoku
mbittner20
541
94ms
14 Apr 2025
Sudoku
zt14427
4,420
32ms
18 Mar 2025
Sudoku
sean-niemann
204
17ms
17 Mar 2025
Sudoku
jameswmccarty
1,160
24ms
13 Mar 2025
Sudoku
ahmetdemirag
353
264ms
4 Mar 2025
Sudoku
ComputerKWasTaken
685
18ms
23 Jan 2025
Sudoku
JunkIce
427
21ms
19 Jan 2025
Sudoku
yokasuretsu
691
12ms
6 Jan 2025
Sudoku
AidanWalter
1,944
21ms
3 Jan 2025
Sudoku
croc54
599
28ms
14 Dec 2024
Sudoku
lifthrasiir
190
106ms
16 Nov 2024
Sudoku
wh3n3v3r
496
15ms
14 Nov 2024
Sudoku
yousefalizadeh
567
31ms
8 Oct 2024
Sudoku
hiichbindermax
1,251
54ms
17 Sep 2024
Sudoku
jatloe
392
25ms
16 Sep 2024
Sudoku
PyryL
659
20ms
24 Aug 2024
Sudoku
duckyluuk
230
61ms
15 Aug 2024
Sudoku
cingulataluke
846
24ms
3 Jun 2024
Sudoku
Natanaelel
579
20ms
24 May 2024
Sudoku
cakular
440
22ms
19 May 2024
Sudoku
jtaxen
2,123
24ms
10 May 2024
Sudoku
inverseLorentz
1,081
23ms
30 Apr 2024
Sudoku
aalec
561
24ms
25 Apr 2024
Sudoku
SB-945
308
154ms
17 Apr 2024
Sudoku
yuchuehw
874
23ms
11 Apr 2024
Sudoku
5cw
347
23ms
28 Mar 2024
Sudoku
mathisfun271
647
32ms
6 Mar 2024
Sudoku
DialFrost
379
537ms
14 Feb 2024
Sudoku
kg583
196
373ms
1 Feb 2024
Sudoku
SirBogman
168
55ms
22 Jan 2024
Sudoku
MeWhenI
351
76ms
17 Jan 2024
Sudoku
neel11235813
179
58ms
11 Jan 2024
Sudoku
brimstonetrader
555
3,829ms
11 Jan 2024
Sudoku
hallvabo
189
36ms
31 Dec 2023
Sudoku
adamnielson42
513
49ms
27 Nov 2023
Sudoku
stefangimmillaro
389
219ms
29 Oct 2023
Sudoku
FlorianCassayre
423
318ms
18 Sep 2023
Sudoku
msbranicky
694
18ms
31 Aug 2023
Sudoku
christensendaniel
2,125
17ms
24 Aug 2023
Sudoku
Vaekor
570
37ms
3 Aug 2023
Sudoku
Ripick
711
102ms
24 Jul 2023
Sudoku
janbehrens
519
273ms
17 Jun 2023
Sudoku
Yewzir
506
4,005ms
8 Jun 2023
Sudoku
TaserTheFox
611
1,391ms
23 May 2023
Sudoku
JayXon
💎
158
25ms
21 May 2023
Sudoku
eiburns
570
30ms
10 May 2023
Sudoku
TheCod-r
899
20ms
20 Mar 2023
Sudoku
galloj
642
39ms
26 Feb 2023
Sudoku
bricknellj
284
34ms
7 Jan 2023