About Pack

Pack is a free daily packing puzzle. You get a tray with a few dark islands and a rack of bendy, tube-shaped pieces, and every empty square must be filled exactly: no gaps, no overlaps, nothing hanging off the edge. The pieces are snakes, chains of squares that bend around corners. That means they can wrap around islands and tuck into each other’s bends in surprising ways.

You can turn pieces in 90° steps by tapping them, but you can never flip them over. An L-shaped piece will never become a J. That one rule is what makes the puzzles tricky: the piece that fits that awkward corner is often not the one you expect. Start with the squares that have the fewest ways to be filled, like corners, dead ends and the gaps next to islands, and the rest tends to follow.

Every day there are four trays, the same for everyone, made from that day’s seed. Easy has a few pieces. Medium and Hard use pieces that are all different shapes. Master is the biggest tray with the most pieces, and it’s a bonus. Each tray is built by cutting a solvable tray into snakes, and a solver checks it so that, as far as possible, there is only one way to pack it. Pack Easy, Medium and Hard to keep your streak going. Hints place one correct piece and cost a star.

Want more? Endless mode serves an infinite run of trays that slowly grow. In the tray maker you can paint your own tray and draw your own pieces, prove it can be solved by solving it yourself, then publish it for everyone else.

📖 How to play Pack: packing puzzle tips and strategy →