4 digit Code for the safe in the bedroom

The first two are obtained by looking at the board in the kitchen

You get the second two by solving the slider puzzle

You have to solve it, it's pretty much straight forward,

just look at the hebrew numerals in the book to learn the

numbers from 1 to 9

the order to arrange the sliders is 1 on the top left to 9 on the bottom right

It's best to make a little sketch