What is this useful for?

A logic-and-pattern exercise. Place colored fish into the grid so each row matches the color pattern on the left, and each column matches the direction pattern at the top.

How to use:

• Press New puzzle.
• Drag fish into every cell.
• Tap a fish to rotate it (change direction).
• Press Check. If correct, a new puzzle starts automatically.

Tips:

• This trains attention, rule-following, and spatial rotation.