Diamond splash – Diamond Splash - The Hardest Jewel Chain Reaction Game Ever Review

I don't understand how to play this game! It seems to be more chance than skill! How do you link the diamonds? Dragging doesn't work. I just tap the screen and they start exploding but there are a few that always get too far away and I can't figure out how to capture them. Maybe an explanation of the game at the beginning would be helpful!
Review by Pokey60 on Diamond Splash - The Hardest Jewel Chain Reaction Game Ever.