Fill Shikaku

Fill Shikaku is a classic Shikaku puzzle game for the Chrome extension. Divide the grid into rectangles or squares so every piece contains exactly one number and the number indicates the piece size.

How to play: click and drag to form a rectangle, then release to lock it in. Rules are simple: each number must be contained in a single piece; each piece can hold only one number; and the number tells you how many cells belong to that piece. Solve the grid by strategically partitioning the board until every cell is used.