Can you help the mermaids catch the dangerous fish in the bubbles?

According to legend, mermaids keep watch over the seas and the oceans. By blowing big bubbles, they can isolate the dangerous monster fish, so their friends can swim around freely and carelessly.

Step 1 – Choose a challenge card and put it on the game board.

Step 2 – Put all the transparent pieces on the game board, so that all monster fish are trapped in a bubble and all the “good” fish are outside the bubbles.

There is only one correct solution per challenge.