Just checking, mate

Players see a chess board with most of the pieces fixed to the board. There are 3 pieces with magnets hidden in their base that are not fixed to the board. Players find 4 images of chess board configurations. They need to arrange them in a way that they form 4 consecutive turns leading to a checkmate. Then, players need to recreate these turns with the pieces with magnets. Hall sensors under the squares on the board register these moves in a correct sequence and solve the puzzle, opening a drawer. Electronics needed: 🧲 4x Hall sensor or Magnetic sensor, 🧩 Universal puzzle controller (6 ports), 🎁 Drawer output set