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How to Play
- Fill each cell with a number from 1 to N.
- Each row and column must contain each number exactly once (Latin square).
- Cells are grouped into cages (bold outlines).
- Each cage shows a target number and an operation (+, −, ×, ÷).
- The numbers in each cage must combine using the operation to produce the target.
- Click a cell, then click a number (or use keyboard 1-6).