What "easy" means here
The easy run is about spotting. Most patterns are a line or corner of three tiles, with the odd square, and it is already nearly made somewhere on the board. The first three are one slide away and the last two are a slide or two on the par line. A wall or two trims the board and never stands in the way of the shortest finish. Play each round in the fewest moves and you land on par, whichever finish you pick.
The shapes are drawn fresh every day, weighted toward the line of 3, column of 3 and corner on this tier. Each round on the par line needs at least as many moves as the round before it, so a run always ramps up.