3)Paint all the rock tile that are in a 7x7 square around the maroon tiles in black.
A square like that :
http://img149.imageshack.us/img149/49/tile1ld.jpg
For exemple :
http://img367.imageshack.us/img367/4126/before8dn.jpg
http://img121.imageshack.us/img121/9405/after3qn.jpg
4)Mine on the "grey tile"! If it say that the rock is too hard to mine, then mine the tile at the right or a the left.
http://img200.imageshack.us/img200/2690/coloredmap2ig.jpg
http://img200.imageshack.us/img200/4102/mapcolorwithblacktile6zr.jpg