LEGO Duplo Deluxe Brick Box 10914 Open Tub Incomplete

Duplo 10914 Deluxe Brick Box. I know at least one of the bricks is missing, one of the dark brown 2x2s that makes up the bottom of the treehouse. Everything seen in the pictures is included. LEGO box measures 14" long by 9.5" tall, not counting studs on top. Booklet has wear but is included.