Pearl Puzzle Online
Pearl is one of the classic one-player logic games in Simon Tatham's Portable Puzzle Collection. Draw a single closed loop, given clues about corner and straight squares.
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Game Objective
Draw one single closed loop through all pearls. A black pearl must be a corner: the loop turns on that square, and the squares immediately before and after it must go straight. A white pearl must be passed through straight, and the loop must turn immediately before or immediately after it.
Draw a single closed loop, given clues about corner and straight squares.
How to Play
Drag between neighboring squares to draw or erase loop segments. You can also left-click an edge between two squares to turn that segment on or off. Right-click an edge to mark a cross when you are sure the loop cannot go there.
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
- Black pearl: turn on the pearl, then go straight through the next square on both sides of the turn.
- White pearl: go straight through the pearl, then make a turn in at least one of the neighboring squares along the loop.
- The answer is one loop only. Do not make branches, dead ends, or a small loop that closes before using every pearl.
Official Rules
For the full original rules, examples, and advanced options, read Simon Tatham's official manual.
Read the official manualFrequently Asked Questions
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