Cascade

How to play

You get 30 taps on a 5 by 5 grid of numbered tiles. Each tap adds 1 to a tile, and when a tile climbs past 4 it bursts, resetting to 1 and sending +1 to every neighbor. Bursts can push neighbors over the limit too, and your score is the longest chain of bursts you trigger with a single move. After every tap a random tile also gains a point, so the board never sits still.

Tips

• Load the board with 4s before you pop anything. A primed grid is what makes long chains possible.
• Center tiles feed four neighbors while corners feed only two, so detonate from the middle.
• The random +1 after each move can spring your trap early. Leave a little slack near loaded tiles.
• One long chain beats several short ones. Only your single best cascade counts.