Every square on the grid has an address: a letter for the column and a number for the row — like B3. Place each item on its address: go across to the letter, then up to the number.
🔤 Read the address — letter first (across)
🔢 Then the number (up)
👆 Pick an item, tap its square, then Verify
Tip: it's the same way maps and chessboards name a spot