The Tic-tac-toe hole will go live in approximately . Why not try and solve it ahead of time?

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Holes Authored

12 Days of Christmas
7th
24 Game
5th
99 Bottles of Beer
11th
Abundant Numbers
29th 12th 146th
Abundant Numbers (Long)
11th 153rd
Arabic to Roman
8th
Arithmetic Numbers
32nd 7th 105th
Arrows
8th
Ascending Primes
5th 49th
ASCII Table
7th
brainfuck
7th
Card Number Validation
8th
Catalan Numbers
10th 187th
Catalan’s Constant
1st
Christmas Trees
7th
Collatz
12th
CSS Colors
8th
Cubes
9th
Day of Week
6th 148th
DFA Simulator
6th 72nd
Diamonds
8th
Divisors
33rd 13th 98th
Emirp Numbers
30th 9th 173rd
Emirp Numbers (Long)
27th 7th 91st
Emojify
7th
Evil Numbers
38th 11th 218th
Evil Numbers (Long)
37th 5th 136th
Factorial Factorisation
6th
Farey Sequence
6th
Fibonacci
1st1st150th
Fizz Buzz
77th52nd123rd37th41st52nd13th1st6th93rd179th14th
Foo Fizz Buzz Bar
9th 275th
Forsyth–Edwards Notation
5th 90th
Fractions
25th 9th 47th
Game of Life
137th
Gijswijt’s Sequence
10th 86th
Happy Numbers
5th
Happy Numbers (Long)
4th
Hexdump
101st
Intersection
8th
Inventory Sequence
6th
ISBN
9th
Jacobi Symbol
10th
Kaprekar Numbers
6th
Kolakoski Constant
10th
Kolakoski Sequence
7th
Leap Years
18th 723rd
Levenshtein Distance
7th
Leyland Numbers
9th 72nd
ln 2
1st
Look and Say
11th
Lucky Numbers
4th
Lucky Tickets
8th
Mahjong
37th
Maze
92nd
Medal Tally
94th
Morse Decoder
9th
Morse Encoder
10th
Musical Chords
25th 77th
N Queens
6th 90th
Niven Numbers
5th31st31st
Niven Numbers (Long)
1st 101st
Number Spiral
5th
Odious Numbers
39th 9th 105th
Odious Numbers (Long)
36th 12th 86th
Ordinal Numbers
8th 156th
PalindromemordnilaP
13th 3rd 44th
Pangram Grep
12th
Pascal’s Triangle
9th 297th
Pernicious Numbers
23rd 1st 54th
Pernicious Numbers (Long)
17th 178th
Poker
24th 101st
Polyominoes
3rd
Prime Numbers
28th 12th 64th
Prime Numbers (Long)
13th 215th
Proximity Grid
77th
QR Decoder
20th 53rd
Quine
177th1st 56th
Recamán
32nd 4th 231st
Repeating Decimals
90th
Reverse Polish Notation
5th
Reversi
48th
Rijndael S-box
5th
Rock-paper-scissors-Spock-lizard
10th
Roman to Arabic
8th
Rule 110
10th 117th
Seven Segment
10th
SI Units
53rd
Sierpiński Triangle
14th
Smith Numbers
4th
Spelling Numbers
5th
Star Wars Opening Crawl
6th
Sudoku
7th
Sudoku (Fill-in)
7th
Ten-pin Bowling
24th 10th 75th
Time Distance
118th
Tongue-twisters
8th
Transpose Sentence
5th 35th
United States
5th 49th
Vampire Numbers
7th
Van Eck Sequence
7th
Zeckendorf Representation
8th
Zodiac Signs
95th
γ
1st
λ
8th
π
1st
τ
1st
φ
1st
√2
1st 125th
𝑒
1st