This is a logic puzzle where you click on any tile to change is colour. On doing so your neighbours on its edges also change colour. The challenge is to change the opening "floor" entirely to the second colour, and then, back again. You may choose a square floor from 9 to 64 tiles. As you may be challenged to find a minimum of selections to complete the challenge, "My score:" appears in the lower left as your record. It is intended to do nothing else.
This is intended to be the first of a short series which has the same basic theme. I originally wrote this in javascript under HTML and presented it (and the others) on a puzzle site some 5 years ago. The inspiration was Conway's "The Game of Life". (I note that several persons have a "Lights Out" game here but this owns no allegiance there). I set out with the javascript model in mind. P444 @ https://scratch.mit.edu/projects/120071581/ offered, a remix of a kind. That benefit was to "show" me how to address my clones in a way which was fitting for purpose. My "Inside" notes indicate that there are 9 instances which need to be addressed, and under "Scratch" that is rather as lengthy as if it was written in javascript or C/C++. Now, I was offered some thoughts by asivi who gave me: https://scratch.mit.edu/projects/120069211/ Now, my original idea had clones deliberately not touching, which I did express when seeking help. Anyway, asivi found a creative means to use "sensing". The remix actually completely does what I offer (but with a small bonus to suggest when you have completed the second floor and the return to the original). Additionally the scripting, due to the use of "sensing" far shortens the scripting needed. For my later purposes however, I do need to remain true to my original thoughts.