Evolmino ⮕☐⮕☐☐⮕

     Evolmino is an offbeat object placement puzzle with a nice look and nice logic ideas. It was brought very recently on Nikoli's "Omopa", and allows for puzzles of all difficulties. Here are the rules :

Place squares in some of the unshaded cells.

- Orthogonally adjacent squares form blocks. Every block must have exactly one square overlapping an arrow.

- Each arrow must pass through two or more blocks.

- When following an arrow from the start to the end, the second and subsequent blocks must have the same shape as the previous block (without changing orientation) with one additional square.

Rules taken from puzz.link - click here for a solved example.

   Do check the rules page to make sure the "evolution" idea is well understood. As always, if more puzzles of this type come I will try to aim for other difficulties.

     Thanks to Wessel for testing and providing feedback.

Puzzle 1 (easy)

Puzzle 2 (medium)

Puzzle 3 (hard)