Even number

Step 1: Preparation: Place 16 coins on the table, as shown in the photo.

Step 2: Assignment: Remove 6 coins so that each line and each column has an even number of coins left after that.

Step 3: Stop the video to think about the puzzle!

Step 4: Do you want to look at the solution of the puzzle?

Step 5: The answer.

Lesson added by Kristik Delik