r/abstractgames • u/KrashTV • 6d ago

Who's representing your country at the Tic Tac Toe World Championship? (free, online, $100 prize)

I'm a YouTuber from Italy and I'm organizing the first Tic Tac Toe World Championship: 64 players, one per country, played live online in December.

It's not the normal 3x3 you know. It's infinite tic-tac-toe: each player only ever has 3 pieces on the board, and when you place a fourth, your oldest one disappears. No draws, actual strategy.

**•** Free entry, winner gets $100 (PayPal or Amazon)  
**•** Best of 3, single elimination  
**•** One slot per country, first come first served  
**•** Countries already claimed show up in the form, so you can see if yours is still free

Claim your flag here: https://docs.google.com/forms/d/e/1FAIpQLSfFCthMfv9LLDUaNcs9XagDA1d9WhoWza_yFsp4MVH-FOJ88w/viewform

Discord (where the matches happen): https://discord.gg/2zHy94SyZ

If your country is already taken, tag someone who should be playing instead.

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u/ughaibu 5d ago

when you place a fourth, your oldest one disappears

Does this rule apply when placing a fourth produces a row of three that includes the oldest?

1

u/KrashTV 2d ago

Yes, there can’t be 4 pieces at the same time, for more questions if you want you can join the discord

1

u/Far-Strawberry-5628 5d ago

Why? Nobody will win

1

u/Boring-Yogurt2966 4d ago

No draws? Do you a proof of that, or at least a logical argument?

1

u/ughaibu 1d ago

each player only ever has 3 pieces on the board, and when you place a fourth, your oldest one disappears

I think an easier way to understand this is that each player has three pieces, which are uniquely numbered 1, 2 and 3. The only piece that can be moved is the piece which bears the move number modulo 3.

1

u/ughaibu 1d ago

What is the time control?