Drop Down Block to water Puzzle

This is a very simple micro game experimental logic and retro old scools in my opinion. If there is no description or tutorial for this game, is it intuitive how to play it? What can be done to make the game more understandable?

Please, let me know if it's understand how to play this game and give me feedback on what can be improved in the game.

If it is completely unclear how to play, I will still leave here a link to the description of the game on my blog https://microsvard.wordpress.com/drop-down-block-to-water-puzzle. But the main thing for me is to understand whether players can play this without description