This week, popular American coffeehouse Starbucks is offering up the 2014 Apple Design Award-winning Threes! as its free iOS app of the week.

A sliding tile puzzler about combining pairs of numbers to generate multiples of three, Threes! has garnered critical acclaim and prompted a slew of free copycat titles such as 2048 since its release in February.

Guilty of perpetuating the mobile game clone wars? Now’s your chance to switch sides.

Pair Threes! with an overly sweetened caramel frappu-whatever, and you’ve set yourself up for a fine day. Caffeine and puzzles! The best combo.

If you don’t want to bother with a Starbucks purchase to grab Threes!, it is available as always for £1.49 / $1.99 on iOS and Android.

Touch Arcade

Want more? Check out our 13 other Threes! news stories!