Fill Grid: Number Logic Puzzle

Unusual Boards, Consistent Rules

Most grid puzzles rely on neat rectangles. Fill Grid: Number Logic Puzzle does the opposite: every level uses a uniquely shaped, irregular board. That design choice means you cannot memorize a single layout or apply a formula from one puzzle to the next. The core objective stays constant, though. You must fill every empty cell by placing numbered blocks from a selection area. Each block is marked with a number N, and it must cover exactly N empty cells. That single constraint forces you to count carefully and plan where larger blocks can fit without leaving isolated gaps.

Power Cell Balance

The second rule adds a layer of planning. Every block you place must cover exactly one positive power cell and one negative power cell. You cannot place a block that covers two positive cells or two negative cells. This means each placement is not just about covering space; it is about matching the right block to the right pair of charges. Before you drag a block onto the board, you need to check that its shape and size can reach both a positive and a negative cell while still covering the required number of empty cells. That dual condition is what makes the puzzles feel more like logic problems than simple shape-fitting.

Controls and Pace

Playing Fill Grid is straightforward. You drag numbered blocks from a selection area onto the board. The drag-and-drop controls are smooth and intuitive, so the challenge comes from the rules rather than from fighting the interface. There are no time limits. You can sit with a puzzle for as long as you need, undo a placement in your head, and try a different arrangement. That calm pace makes the game accessible to players who want mental stimulation without pressure. The level is complete when all cells are covered and every block satisfies both the number count and the power cell balance rule.

Progression and Skill

As you advance, the game gradually introduces more complex layouts. Early boards tend to be smaller and easier to read, while later ones demand more careful scanning and forward planning. Because each board is custom-shaped, you cannot rely on muscle memory. Instead, you build pattern recognition: you learn to spot where larger blocks can fit, which power cell pairs are flexible, and which empty cells are most constrained. That progression keeps the experience engaging for players who enjoy logic puzzles, number games, and brain training without a timer.

Editorial Notes

Compatibility