Nice puzzle. Would be cool if sounds and/or music can be turned off so I can listen to anything else while playing.
I understand your point.
But i also must say that imho a game does not feel complete without audio. In the beginning of the cinema there was no sound on a movie and only by the 1920's it became technically possible and after that you simply couldn't release a movie without sound. A lot of the websites today are completely silent experiences, which i feel is a waste of 50% of the design space and kills the immersion.
A lot of games have a giant mute button in the top right corner of the screen and that button always bothers me, no matter how bad the sound of the game is... So as a design choice i opt out of the use of a mute button as it has nothing to do with the game itself.
Maybe someone enjoyed playing the most in his own way. I don't think we should insist that he's ruining something in this case. I think audio controls should not present in the design if the runtime of the game has these controls. I searched how to mute tabs in browser and I got what I need so you don't have to do anything.
Thanks! Great that it is browser feature ;) When my designs of my other games allow it in the future i will sure add those controls myself. The next game i am making will have these controls as i already know where to place them. But i am just in doubt about this one, maybe i will also place them somewhere eventually...