Palisade Puzzle Online
Palisade is one of the classic one-player logic games in Simon Tatham's Portable Puzzle Collection. Divide the grid into equal-sized areas in accordance with the clues.
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Preparing the game board and controls.
Game Objective
Draw borders to split the grid into regions. In each region, every square must be reachable from the others by moving up, down, left, or right; touching only at a corner does not connect squares. All regions must have the same required number of squares. A number in a square tells how many of that square's four sides must be drawn as borders.
Divide the grid into equal-sized areas in accordance with the clues.
How to Play
Left-click an edge between squares to mark it as a border between two regions. Left-click again to make it undecided. Right-click an edge to mark that there is definitely no border there, meaning the two squares are in the same region.
These puzzles reward careful deduction more than speed. Start with the most constrained clues, eliminate impossible choices step by step, and avoid guessing unless the puzzle specifically calls for it.
Beginner Tips
- First check the required region size for the puzzle. Every finished region must contain exactly that many squares.
- A 0 clue means none of its four sides are borders. A 4 clue means all four sides are borders.
- Use no-border marks too: if two neighboring squares must belong to the same region, marking that edge as not a border prevents later mistakes.
Official Rules
For the full original rules, examples, and advanced options, read Simon Tatham's official manual.
Read the official manualFrequently Asked Questions
More Logic Collection Games
Pattern
Fill in the pattern in the grid, given only the lengths of runs of black squares.
Pearl
Draw a single closed loop, given clues about corner and straight squares.
Pegs
Jump pegs over each other to remove all but one.
Range
Place black squares to limit the visible distance from each numbered cell.
Rectangles
Divide the grid into rectangles with areas equal to the numbers.
Same Game
Clear the grid by removing touching groups of the same colour squares.
Signpost
Connect the squares into a path following the arrows.
Singles
Black out the right set of duplicate numbers.