Puzzle ID: HY66-041PM-CUNY-QRJF-TFOR

1 - Observation

 

PP must give rise to a bridge which is not on a diagonal and is either two or four units long.

 

Deduction

 

It can only be four west. P is two west.

 

Action

 

Draw a bridge from PP to CF.

2 - Observation

 

FF must give rise to a bridge which is not on a diagonal and is either two or four units long.

 

Deduction

 

It can only be four east. F is two east.

 

Action

 

Draw a bridge from FF to RY.

3 - Observation

 

VV must give rise to a bridge which is not on a diagonal and is either two or four units long.

 

Deduction

 

It can only be two west. V is one west.

 

Action

 

Draw a bridge from VV to RO.

 

4 - Observation

 

Observe PV. We know that P is two west and V is one west.

 

Deduction

 

Therefore PV is three west.

 

Action

 

Draw a bridge from PV to EO.

 

5 - Observation

 

There are two islands with the clue CF.

 

Deduction

 

They must both give rise to bridges that are the same length and direction. The only possibility is two north east.

 

Action

 

Draw a bridge from CF to VV and another bridge from CF to PV.

 

6 - Observation

 

There is only one valid bridge that can be drawn from RY. That is three south.

 

Deduction

 

R and Y are a linked pair. One of the letters means one south and the other means two south.

 

Action

 

Draw a bridge from RY to PP.

 

7 - Observation

 

Look at RO. It must have a component that is either one south or two south.

 

Deduction

 

A two south component is impossible and the only possible one which contains one south is if R is one south and O is null.

 

Action

 

Draw a bridge from RO to RK.

 

8 - Observation

 

Look at RK. If there is a bridge from RK to CF then the loop closes too easly.

 

Deduction

 

RK must generate a bridge to FF. (It cannot go to EO because that would involve an illegal bridge across CF.)

 

Action

 

Draw a bridge from RK to FF.

 

9 - Observation

 

The only possible remaining bridge is from EO to CF

 

Deduction

 

 

Action

 

Draw a bridge from EO to CF. Puzzle complete.