Solution 100% testée par PQ Power Corp :

GET LAMP , UP , UP , EXANINE LIGHT , LOOK , GET RUSTY KEY , DOWN , DOWN , DOWN , DOWN , EXAMINE BOX , LOOK , GET BAG , EXAMINE BAG , GET BAR , PUSH BOX , LOOK , GET NOTE , READ NOTE , GET ROPE , GET HAMMER , GET SCREWDRIVER , GET PICK , GET SAW , GET MATCHES , UNLOCK DOOR , DOWN , DOWN , FORCE OPEN DOOR WITH BAR , WEST , WEST , WEST , SOUTH , SOUTH , EXAMINE PLATE , PRESS PLATE , EAST , EAST , EXAMINE ROOM , LOOK , GET MAGNET , WEST , WEST , NORTH , NORTH , NORTH , NORTH , WEST , FILL BAG WITH SAND , EAST , SOUTH , SOUTH , WEST , WEST , NORTH , TIE ROPE TO RING , STRIKE MATCH , LIGHT LAMP , CLIMB DOWN ROPE , NORTH , NORTH , WEST , REMOVE ROCKS WITH PICK , EAST , EAST , EAST , EAST , SOUTH , SOUTH , EXAMINE DOOR , DRAW BOLT WITH MAGNET , DOWN , DOWN , DOWN , EXAMINE DOOR , BREAK DOOR , EAST , EXAMINE ROOM , LOOK , GET LARGE KEY , GET SUIT , EXAMINE SUIT , WEAR SUIT , WEST , UP , UP , UP , NORTH , NORTH , EAST , EAST , EAST , EAST , NORTH , NORTH , EXAMINE DOOR , UNLOCK DOOR , EAST , PUT BAG INTO BOWL , EAST , EXAMINE MESSAGE , EXAMINE CHEST , GOLD

There you are, you big cheat! Solution by Debby Howard.