Light Up Advanced rules/Strategies (Tutorial WIP)

3-Knight Rule

There is only 1 way to satisfy two number 3 squares that are a knight move away from each other

2-3 Rule

A 2 and a 3 square that are in each other path, and whose ‘side paths’ are unblocked as well, must have a lightbulb on their opposite ends

2-2 Rule

Two 2 squares that have open ‘side paths’ must have a lightbulb on opposite ends

1-3 Rule

A 3 square that is diagonal from a 1 square must have 2 lightbulbs on the sides away from the 1

0-2 Rule

A 2 square that is diagonal from a 0 square must have 2 lightbulbs on the sides away from the 1