University Games SOMETHING FISHY IMPOSSIBLE

Something fishy is going on here! This puzzle has 5 extra pieces that don't fit anywhere, and it's borderless, with no straight edges! Test your skills on schools of fish, plus fun hidden images, too! Can you find the kitten hidden amongst all the fish? Note: the box cover has only a small portion of the puzzle, not the entire image. 750 fully interlocking pieces. Measures 24x24.