Renzoku is a logic puzzle also known as Neighbours, where:

The numbers to fill in are from $1$ to $4$

Each row and column must contain only one instance of each number

A dot between two cells indicates that those two numbers should be consecutive $($for example $1\mathrm{.}2$ or $2\mathrm{.}1$ are consecutive$).$ If there is no dot then the numbers should NOT be consecutive.

For example, here is a completed Renzoku puzzle $(2$ marks $-0\mathrm{.}14$ marks each$)$:

$4$

$$

$-$

$$

$$

$-$

$$

$\backslash$table$[[3*4,2*$