Each row, column, and diagonal must add up to the same total. The small squares within each box are for planning purposes only.
Start with the box marked START HERE. Drag the tile with the correct answer into its drop zone. Then find the box whose "Previous Answer" matches the answer you just got, and keep going until every box is solved!
The same x and the same y make both equations below true. Can you figure out what numbers could work?
Solve the problem in your current box, then click the number on the path that matches your answer to move to the next box. Find your way from START to STOP!