How can I get through the hole

Hint 1 of 4:

You need something to widen the hole; did you search the room ?

Hint 2 of 4:

Search the floor carefully.

Hint 3 of 4:

MOVE COAL to right of furnace and GET PICK.    +7

Hint 4 of 4:

USE PICK ON HOLE and GOTO HOLE.   +2