Godzilla - Puzzle Level - Help

People,

Could anyone help me with this room of Godzilla. I got stuck on that.

I do not figure out how to put the three stones in the low portion of the screen. The stone in the upper left corner of the screen I have already broken.

Tks in advance,

Fabio

No need anymore. I have discovered how to pass through the room and finished the game. If anyone want, Godzilla´s map is available for download at: [www.geocities.com]

Fabio