Were I to play in your game, I'd need to spell out each area of the dresser I am looking for traps in. I'd have to tell you that I'm examining all the nobs, the under areas of the drawers, the back of the dresser, under the dresser, the sides of the dresser, the top of the dresser, checking the legs to see if they are trapped, remove the drawers one by one checking behind the remaining drawers, etc. I'd have to check all the pixels that I could think of, because if I missed say the legs and that's the pixel that was trapped, I fail.