Grimrock

oh dear lord why didnt i think of trying that.. thank you =/ i really am an idiot

i might be really blind here but this puzzle has got me stuck. im trapped in this dungeon, everything else i've managed to find is cleared except this room. its a big ass smooth stone on a 2x2 grid. and a pressure plate nearby will light up 3 of the grid blue, and one of the grid red. logicly it mea...