Radio Astronomy Systems Research Group

Can you connect all of the dots in the grid below following these rules: ¹⁾

1. You have to connect all the dots with a continuous line (no pencil lifts)

2. You can't cross a line or use diagonals

3. The underscore is a space that you cannot go through

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answer

Start with 4 white and 4 black stones in the order shown.

The goal is to have the stones alternate after only 4 moves:

Here are the rules for each move:

1. You must move two stones at a time.

2. Only adjacent stones may be moved.

3. Stones are only adjacent if the is no space between them

3. You must leave spaces if you create them. ²⁾

answer