🎲 CatanBoardGenerator
Menu

🏆 Tournament-style islands

Tournament mode here applies the strictest checks we support so high rolls and matching terrain do not dog-pile on one corner before anyone builds a road.

Generate tournament island →

What “tournament” means here

Unlike casual variable setup, a tournament-style island tries to remove obvious luck spikes: no touching sixes and eights, no doubled numbers on neighbors, and no identical terrain sharing an edge. The tool shuffles until those checks pass (up to two thousand tries), then shows a simple balance score so you can compare tables.

Rule comparison

Check Official random Fair mode Tournament mode
Six and eight not touchingNot requiredOn by defaultOn
Same number neighborsAllowedOptionalBlocked
Same terrain neighborsAllowedOptionalBlocked

Run a smooth league night

  1. Generate one island per table and share the link so copies match.
  2. Agree whether friendly trades are unlimited or limited.
  3. Use a gentle turn timer if rounds drag.
  4. Post victory points where everyone can see them.
  5. Confirm tiebreakers—usually you must hit ten points on your own turn to win.

After the map is set

Even a perfect island rewards players who diversify early, buy knights when largest army is open, and use roads to steer opponents—not only players who rolled well on the first turn.

Probability reminder

Two dice give six and eight the highest peaks, then five and nine, then four and ten, and so on.

Frequently asked questions

What setup rules do competitive events use?

Organizers usually ban adjacent sixes and eights, matching numbers on touching hexes, and matching terrain on neighbors. Some also require a minimum balance score.

How do tournaments treat the robber?

Most finals still use the normal robber. A few house variants limit where it may sit—read your event flyer.

Is there a world championship?

Yes. National winners funnel into the CATAN World Championship, which uses carefully checked maps so tables stay comparable.