Your grandfather and grandmother are playing chess, and you are sitting in the same room doing your own thing. A wide grin comes across your grandfather's face, and you can tell he is about to checkmate. Unfortunately, as he is reaching for the piece, he gets an important call on his phone. He asks you to take over his game for him. "You can checkmate on this move," he says. "Her knight would be able to block your queen, but it's already blocking the other one. Don't worry about her pawns, they're more of a hindrance than a help to her." He begins to walk away. "What a close game," he mumbles. "Same number of pawns... in fact, same number of pieces! Hm..."
Unfortunately, you are only five years old, and when you slide into your grandfather's chair at the large, tall table, your eyes are level with the chessboard and all you can see is:
What misfortune! Unfortunately, you know that all pieces are the same height (except for the pawns, which are shorter) so some pieces could be blocking your view of others behind them. Your grandmother, upon realizing your enigma, begins to cackle fiendishly. She does, however, tell you that there are exactly 8 pieces on the board.
What does the board look like? What move should you make?
NOTE: When I created this puzzle, I did not find all possible solutions, so there may be more than one. Also, "same number of pieces" does not mean the same number of each type of piece.