Ads are now paced by how long you have actually been playing, not by how many levels you have cleared. Levels vary enormously in length, so the old rule interrupted short early levels constantly and long later ones almost never. There is now a limit of four interstitials in one sitting, and no ad at all after a level where you lost a life.

50 new levels, bringing the campaign to 100. A level you leave part way through now picks up where you left off, so the later boards can be played across more than one sitting. Fixed the daily puzzle taking a very long time to open, and fixed the watch-an-ad option not returning your hearts.

• 15 new levels — a fresh band of picture boards to untangle • Reworked difficulty curve across the campaign • Smoother first few levels: the game now teaches itself, no text needed • Stability and input fixes