Palisade

Palisade is a logic puzzle that challenges you to divide a rectangular grid into contiguous, equal-sized regions—each containing exactly n cells, where n is determined by the puzzle size—while respecting numerical clues placed along the grid’s edges.

These clues indicate how many regions are adjacent to that edge segment. For example, a clue of “3” on the top edge means that three separate regions touch that part of the boundary. Your task is to draw borders between cells to carve out regions that satisfy all edge clues and are all the same size—no more, no less.

What makes Palisade especially rewarding is its blend of global constraint (uniform region size) and local deduction (edge adjacency counts). Unlike many grid-division puzzles, it doesn’t tell you where regions start or end—only how they interact with the perimeter. This creates a subtle but deeply logical solving experience, where every line you draw has cascading implications.

Draw lines along the grid edges to divide the grid into connected regions, each of the size shown in the status line. Additionally, every numbered square must have exactly that many of its edges drawn in.

Click on a grid edge to mark it as a division between regions (black), and again to return to marking it as undecided (yellow).

Right-click on a grid edge to mark it as definitely not part of the loop (faint grey), and again to mark it as undecided again.