I'm glad you like the game! Chording was always supposed to be a feature, but I realize the old controls for it were a bit broken/confusing - I've simplified it, so now you should be able to just click on numbers to clear adjacent tiles (as long as the correct number of flags are placed).
Oh wow, I wasn't expecting such a fast turnaround! It works great, now! Only small issue I found is that closing the settings menu gets the board stuck to the cursor, forcing you to click whatever random tile is underneath it in order to get it unstuck. A remaining mine count would also help, especially in situations where you have to guess.