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Seven Towers is a puzzle in Professor Layton and the Last Specter.

Puzzle

US Version

Seven towers stand on a waterway, each connected by a bridge. One day the towers were tested to see which ones could be reached after crossing exactly six bridges, starting from shore A or shore B. It was discovered that all of the towers could be reached in this way except one.

Keeping in mind that the same bridge cannot be crossed twice in one trip, which tower cannot be reached after crossing over exactly six bridges?

UK Version

Seven towers stand on a waterway, each connected by a bridge. One day, the towers were tested to see which ones could be reached after crossing exactly six bridges, starting from shore A to shore B. It was discovered that all the towers could be reached in this way except one.

Keeping in mind that the same bridge cannot be crossed twice in one trip, which tower cannot be reached after crossing six bridges?

Hints




Click a Tab to reveal the Hint.

US Version

Use the Memo function to mark off any towers you can reach from either shore in exactly six moves without crossing the same bridge twice.

UK Version

Use the Memo Function to mark off any towers you can reach from either shore in exactly six moves without crossing the same bridge twice.

US Version

You can reach the bottom-left and bottom-right towers in exactly six moves, so neither of those is the answer.

UK Version

You can reach the bottom-left and bottom-right towers in exactly six moves. Thus, neither of those is the answer.

US Version

You can also reach the towers on the far left and far right in exactly six moves.

That leaves only three towers: the top left, the top right, and the one in the middle.

UK Version

You can also reach the towers on the far-left and far-right in exactly six moves.

That leaves only three towers: the top-left, the top-right and the central.

US Version

The tower in the middle can be reached in exactly six moves. That leaves only the towers on the top right and the top left.

UK Version

The tower in the centre can be reached in exactly six moves. That leaves only the towers in the top-right and the top-left.


Solution

Incorrect

Too bad.

US Version

Try out different routes over the bridges to see which tower you can't reach in exactly six moves.

It may be easier if you keep track using the Memo function.

UK Version

It's easy if you keep track using the Memo Function.

Correct

US Version

Correct!

You can reach the top-right tower after crossing two, four, five, or seven bridges, but never six.

UK Version

That's correct!

You can reach the top-right tower after crossing two, four, five or seven bridges, but never six.

LS096S

A big thanks to http://professorlayton4walkthrough.blogspot.com

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