CellSplit - Chain Puzzle

CellSplit places numbered cells on a five by five grid. Each cell holds a value from one to three. Tap any cell and it splits — its value distributes one point to each of its neighbouring cells and the tapped cell resets to zero. The goal is to reduce every cell on the grid to zero. The strategic depth comes from chain reactions. When a neighbouring cell reaches four from receiving distributed values it automatically bursts, spreading its value outward in turn. A well-planned tap can trigger a cascade of bursts that clears large sections of the grid in a single move. Red critical cells are one split away from bursting on their own and must be handled carefully. Corner cells have only two neighbours and edge cells have three so their splits are more concentrated. Planning the order of splits to avoid runaway cascades while engineering useful chain reactions is the core challenge. Higher levels fill the grid with more cells at higher starting values. Fewer taps to clear the board earns a higher score.