After Beth is tied to the oven, the knife on the counter by the cutting board next to the mom moves while she is talking to Zach.
When Zach is inside the MRI scanner, he would not have been allowed to lift his head to look down as this would affect image acquisition. Also, it would not be possible for him to see his mother sitting in a chair reading a magazine as he stared down through the bore of the scanner. MRI scanners produce high magnetic fields and for safety reasons, the waiting area will not be in such close proximity to the scanner.
At around 5 minutes, Zach and Maury are seen playing a game of chess unfortunately the chess board was incorrectly set up, so that the bottom-right square is black.
Unfortunately as a consequence, the black queen and king plus the white queen and king are all on the wrong starting squares. No one ever plays the game of chess with the bottom-right square as black, because then all the kings and queens would then be incorrectly placed on the wrong color starting squares. How to set up the pieces on a chess board: First set up the board so that the bottom-right square is white . . . Place a rook on each of your two corners . . . Place the knights next to the rooks . . . Place the bishops to the inside of the knights . . . Place the queen on the remaining, matching-color square . . .
Unfortunately as a consequence, the black queen and king plus the white queen and king are all on the wrong starting squares. No one ever plays the game of chess with the bottom-right square as black, because then all the kings and queens would then be incorrectly placed on the wrong color starting squares. How to set up the pieces on a chess board: First set up the board so that the bottom-right square is white . . . Place a rook on each of your two corners . . . Place the knights next to the rooks . . . Place the bishops to the inside of the knights . . . Place the queen on the remaining, matching-color square . . .