Regarding 'For those seeking achievements: Click "Remember my progress" after completing any level."' - I have never seen this option, since the first release of this game. Running on Chrome.
You do a nice job of introducing new concepts via "explain by guided playthru". Reminds me of how well Portal would walk you through concepts. Glad there's an android app, hope an ios one is coming soon!
Could we get retention of what user levels we've played? It only lasts during the current session, come back next day everything is cleared. Built-in levels still keeping track correctly.
Came back to play this after playing the latest. See some complaining of a non-issue.... You can empty the glass in the sink if you fill it with just water.
@alexx A bomb detected by a heart must have clear spaces to all four sides. If on the board there's only one heart vertically, and one horizontally, it must be at the spot where the two heart clues intersect.
@Grand, you don't have to guess on 13, only the two middle cells in each row/column are questionable from the starting clues. You can flag each of the 3 cells in each corner based on those clues. From that point on where the 1's are marked make it straight logic.