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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.
- Think of each number as a tower of that height.
- Clues on the edges tell you how many towers are visible from that direction.
- A taller tower blocks all shorter towers behind it.
- Example: the sequence 2,1,4,3 has 2 towers visible from the left (2 and 4).
- Click a cell, then click a number (or use keyboard 1-6).