Fat Brain Toys - Corners Up

Are you clever enough to collect the most corners? On each turn, players have to place one of their game pieces adjacent to or on top of the other pieces within a 4x4 grid, building a pyramid as they go. When a 2x2 square is completed, whoever has the most pieces within that square gest o place one of their pieces on top of those four. Can you trick everyone else into giving you the best moves? Whoever occupies most corners of the pyramid wins!